Commit for 2020.09.20.7z

bin/data/shaders/display.blit.frag.glsl

@@ -0,0 +1,23 @@
+#version 450
+#extension GL_EXT_samplerless_texture_functions : require
+
+layout (binding = 1) uniform sampler samp;
+layout (binding = 2) uniform texture2D albedoLeftTexture;
+layout (binding = 3) uniform texture2D albedoRightTexture;
+
+layout (location = 0) in vec2 inUv;
+
+layout (location = 0) out vec4 outAlbedoSpecular;
+
+layout( push_constant ) uniform PushBlock {
+  uint pass;
+} PushConstant;
+
+void main() {
+	if ( PushConstant.pass == 0 ) {
+		outAlbedoSpecular.rgb = texture(sampler2D(albedoLeftTexture, samp), inUv).rgb;
+	} else {
+		outAlbedoSpecular.rgb = texture(sampler2D(albedoRightTexture, samp), inUv).rgb;
+	}
+	outAlbedoSpecular.a = 1;
+}

bin/data/shaders/display.blit.vert.glsl

@@ -0,0 +1,16 @@
+#version 450
+
+layout (location = 0) in vec2 inPos;
+layout (location = 1) in vec2 inUv;
+
+layout (location = 0) out vec2 outUv;
+
+out gl_PerVertex {
+    vec4 gl_Position;
+};
+
+void main() {
+	outUv = inUv;
+
+	gl_Position = vec4(inPos.xy, 0.0, 1.0);
+}

bin/data/shaders/display.subpass.frag.glsl

@@ -17,9 +17,9 @@ layout (location = 0) out vec4 outFragColor;
 
 struct Light {
 	vec3 position;
-	float power;
-	vec3 color;
 	float radius;
+	vec3 color;
+	float power;
 	int type;
 	int shadowed;
 	mat4 view;

bin/data/shaders/raytracing.comp.glsl

@@ -1,408 +1,280 @@
 #version 450
 
 layout (local_size_x = 32, local_size_y = 32) in;
-layout (binding = 0, rgba8) uniform writeonly image2D resultImage;
 
-#define EPSILON 0.00001
+layout (constant_id = 0) const uint LIGHTS = 16;
+layout (constant_id = 1) const uint EYES = 2;
+layout (binding = 0, rgba8) uniform writeonly image2D resultImage[EYES];
+
+#define RAY_MARCH false
+#define MARCH_STEPS 32
+#define EPSILON 0.0001
 #define MAXLEN 1000.0
 #define SHADOW 0.5
-#define RAYBOUNCES 4
-#define REFLECTIONS true
-#define REFLECTIONSTRENGTH 0.4
-#define REFLECTIONFALLOFF 0.5
+#define SHADOWS true
+#define RAYBOUNCES 0
+#define REFLECTION_STRENGTH 0.4
+#define REFLECTION_FALLOFF 0.5
 
-#define UINT32_MAX 0xFFFFFFFF
+layout( push_constant ) uniform PushBlock {
+  uint pass;
+} PushConstant;
 
-#define TREE_SIZE 8
-#define TREE_STACK 32
-#define PRIMITIVE_TYPE_EMPTY UINT32_MAX
-#define PRIMITIVE_TYPE_CUBE 1
-#define PRIMITIVE_TYPE_LEAF 2
-#define PRIMITIVE_TYPE_TREE 3
-#define PRIMITIVE_TYPE_ROOT 4
-
-struct Camera {
-	vec3 position;
-	mat4 view;
-	float aspectRatio; 
+struct Ray {
+	vec3 origin;
+	vec3 direction;
 };
-
-struct StartEnd {
-	uint start;
-	uint end;
+struct Result {
+	vec3 color;
+	float t;
+	int id;
 };
-
-struct Cube {
-	vec4 position;
-	uint type;
-//	uint _padding[3];
-};
-
-struct Tree {
-	vec4 position;
-	uint type;
-	uint children[TREE_SIZE];
-//	uint _padding[3];
-};
-
 struct Light {
 	vec3 position;
+	float radius;
 	vec3 color;
+	float power;
+	vec2 type;
+	mat4 view;
+	mat4 projection;
 };
 
-layout (binding = 1) uniform UBO  {
-	Camera camera;
-	StartEnd cubes;
-	StartEnd lights;
-	uint root;
+struct State {
+	vec3 viewPosition;
+	Ray ray;
+	Result result;
+} state;
+
+layout (binding = 2) uniform UBO {
+	mat4 matrices[2];
+	vec4 ambient;
+	Light lights[LIGHTS];
 } ubo;
-layout (std140, binding = 2) buffer Cubes {
-	Cube cubes[ ];
-};
-layout (std430, binding = 3) buffer Trees {
-	Tree trees[ ];
-};
-layout (std140, binding = 4) buffer Lights {
-	Light lights[ ];
-};
-layout (binding = 5) uniform sampler2D samplerTexture;
 
-// Lighting =========================================================
-void reflectRay(inout vec3 rayD, in vec3 mormal) {
-	rayD = rayD + 2.0 * -dot(mormal, rayD) * mormal;
+struct Shape {
+	vec4 values;
+	vec4 albedoSpecular;
+	int type;
+};
+layout (std140, binding = 3) buffer Shapes {
+	Shape shapes[];
+};
+
+void reflectRay(inout vec3 rayD, in vec3 normal) {
+	rayD = rayD + 2.0 * -dot(normal, rayD) * normal;
 }
+// Lighting =========================================================
 float lightDiffuse(vec3 normal, vec3 lightDir) {
 	return clamp(dot(normal, lightDir), 0.1, 1.0);
 }
 float lightSpecular(vec3 normal, vec3 lightDir, float specularFactor) {
-	vec3 viewVec = normalize(ubo.camera.position);
+	vec3 viewVec = normalize(state.viewPosition);
 	vec3 halfVec = normalize(lightDir + viewVec);
 	return pow(clamp(dot(normal, halfVec), 0.0, 1.0), specularFactor);
 }
-// Cube ===========================================================
-float cubeIntersect(vec3 rayO, vec3 rayD, vec3 rayDRecip, Cube cube) {
-	float t[10];
-	t[1] = ( cube.position.x - cube.position.w - rayO.x) * rayDRecip.x;
-	t[2] = ( cube.position.x + cube.position.w - rayO.x) * rayDRecip.x;
-	t[3] = ( cube.position.y - cube.position.w - rayO.y) * rayDRecip.y;
-	t[4] = ( cube.position.y + cube.position.w - rayO.y) * rayDRecip.y;
-	t[5] = ( cube.position.z - cube.position.w - rayO.z) * rayDRecip.z;
-	t[6] = ( cube.position.z + cube.position.w - rayO.z) * rayDRecip.z;
-	t[7] = max(max(min(t[1], t[2]), min(t[3], t[4])), min(t[5], t[6]));
-	t[8] = min(min(max(t[1], t[2]), max(t[3], t[4])), max(t[5], t[6]));
-	t[9] = (t[8] < 0 || t[7] > t[8]) ? 0.0 : t[7];
-	return t[9];
-}
-uint intersect(in vec3 rayO, in vec3 rayD, inout float resT, uint start, uint end) {
-	uint id = UINT32_MAX;
-	vec3 rayDRecip = 1.0f / rayD;
-	for (uint i = start; i < end && i < ubo.cubes.end && i < cubes.length(); i++) {
-		Cube cube = cubes[i];
-		if ( cube.type == PRIMITIVE_TYPE_EMPTY ) continue;
-		float tcube = cubeIntersect(rayO, rayD, rayDRecip, cube);
-		if ((tcube > EPSILON) && (tcube < resT)) {
-			id = i;
-			resT = tcube;
-		}	
-	}
 
-	return id;
-}
-// Tree ===========================================================
-float treeIntersect( in vec3 rayO, in vec3 rayD, in vec3 rayDRecip, Tree tree ) {
-	Cube treecube;
-	treecube.type = tree.type;
-	treecube.position = tree.position;
-	float t = cubeIntersect( rayO, rayD, rayDRecip, treecube );
+// Sphere ===========================================================
+float sphereIntersect(in vec3 rayO, in vec3 rayD, in Shape shape ) {
+	vec3 oc = rayO - shape.values.xyz;
+	float b = 2.0 * dot(oc, rayD);
+	float c = dot(oc, oc) - shape.values.w * shape.values.w;
+	float h = b*b - 4.0*c;
+	if (h < 0.0) return -1.0;
+	float t = (-b - sqrt(h)) / 2.0;
 	return t;
 }
-struct StackIterator {
-	uint tree;
-	uint child;
-};
-struct Stack {
-	int pointer;
-	StackIterator container[TREE_STACK];
-};
-Stack stack;
-
-StackIterator popStack( ) {
-	StackIterator top = stack.container[stack.pointer];
-	stack.container[stack.pointer--] = StackIterator( UINT32_MAX, UINT32_MAX );
-	return top;
+vec3 sphereNormal(in vec3 position, in Shape shape) {
+	return (position - shape.values.xyz) / shape.values.w;
 }
-void pushStack( StackIterator item ) {
-	stack.container[++stack.pointer] = item;
+float sphereSDF( vec3 position, in Shape shape ) {
+	return length(position - shape.values.xyz) - shape.values.w;
 }
-uint intersectTreecursive( in vec3 rayO, in vec3 rayD, in vec3 rayDRecip, inout float resT, uint root ) {
-	uint id = UINT32_MAX;
-	if ( root == UINT32_MAX ) return id;
-	// set up stack
-	stack.pointer = -1;
-	for ( uint i = 0; i < TREE_STACK; ++i ) stack.container[i] = StackIterator( UINT32_MAX, UINT32_MAX );
-	pushStack(StackIterator( root, UINT32_MAX ));
-
-	while ( true ) {
-		StackIterator it = popStack();
-		// end of stack
-		if ( it.tree == UINT32_MAX ) break;
-		Tree tree = trees[it.tree];
-		// invalid tree
-		if ( tree.type == PRIMITIVE_TYPE_EMPTY ) break;
-		// new tree, parse collision
-		if ( it.child == UINT32_MAX ) {
-			float t = treeIntersect( rayO, rayD, rayDRecip, tree );
-			// bad intersection with this tree, continue with next iteration
-			if ( t <= EPSILON || t >= resT ) continue;
-			// push back with new stack
-			it.child = 0;
-			pushStack( it );
-			// continue with next iteration
-			continue;
-		} else if ( it.child >= TREE_SIZE ) {
-			// no new children, continue with next iteration
-			continue;
-		} else {
-			// is leaf
-			if ( tree.type == PRIMITIVE_TYPE_LEAF ) {
-				// check children for a match
-				for ( uint i = 0; i < TREE_SIZE; ++i ) {
-					uint branchId = tree.children[i];
-					// unallocated, skip
-					if ( branchId == UINT32_MAX ) continue;
-					Cube primitive = cubes[branchId];
-					if ( primitive.type == PRIMITIVE_TYPE_EMPTY ) continue;
-					float t = cubeIntersect( rayO, rayD, rayDRecip, primitive );
-					// branch intersects with ray, set as new parent
-					if ( (t <= EPSILON) || (t >= resT) ) continue;
-					id = branchId;
-					resT = t;
-				}
-				// continue with next iteration
-				continue;
-			}
-			// parse children
-			uint branchId = tree.children[it.child++];
-			// add new iterator to the stack
-			pushStack( it );
-			// unused child, continue with next iteration
-			if ( branchId == UINT32_MAX ) continue;
-			// tree branch, push to stack
-			// the first if block will check its collision
-			it.tree = branchId;
-			it.child = UINT32_MAX;
-			pushStack( it );
-			continue;
+// Plane ===========================================================
+float planeIntersect(in vec3 rayO, in vec3 rayD, in Shape shape) {
+	float d = dot(rayD, shape.values.xyz);
+	if (d == 0.0) return 0.0;
+	float t = -(shape.values.w + dot(rayO, shape.values.xyz)) / d;
+	return t < 0.0 ? 0.0 : t;
+}
+vec3 planeNormal(in vec3 position, in Shape shape) {
+	return shape.values.xyz;
+}
+float planeSDF( vec3 position, in Shape shape ) {
+	return dot( position, shape.values.xyz ) + shape.values.w;
+}
+// Generic =========================================================
+float shapeIntersect(in vec3 rayO, in vec3 rayD, in Shape shape) {
+	if ( shape.type == 1 ) return sphereIntersect( rayO, rayD, shape );
+	if ( shape.type == 2 ) return planeIntersect( rayO, rayD, shape );
+	return 0.0;
+}
+vec3 shapeNormal( vec3 position, in Shape shape ) {
+	if ( shape.type == 1 ) return sphereNormal(position, shape);
+	if ( shape.type == 2 ) return planeNormal(position, shape);
+	return vec3(0.0);
+}
+float shapeSDF( vec3 position, in Shape shape ) {
+	if ( shape.type == 1 ) return sphereSDF(position, shape);
+	if ( shape.type == 2 ) return planeSDF(position, shape);
+	return MAXLEN;
+}
+// Intersect =======================================================
+int intersect(in vec3 rayO, in vec3 rayD, inout float resT) {
+	int id = -1;
+	for (int i = 0; i < shapes.length(); i++) {
+		Shape shape = shapes[i];
+		float tShape = shapeIntersect(rayO, rayD, shape);
+		if ((tShape > EPSILON) && (tShape < resT)) {
+			id = i;
+			resT = tShape;
 		}	
 	}
 	return id;
 }
-
-uint intersectTree( in vec3 rayO, in vec3 rayD, in vec3 rayDRecip, inout float resT ) {
-	uint id = UINT32_MAX;
-	// traverse the tree branches to the leaf
-	uint index = 0;
-	while ( true ) {
-		Tree tree = trees[index++];
-		if ( tree.type == PRIMITIVE_TYPE_EMPTY ) break;
-		if ( tree.type != PRIMITIVE_TYPE_LEAF ) continue;
-		float tcube = treeIntersect( rayO, rayD, rayDRecip, tree );
-		// ray fails collision with parent tree
-		if ( (tcube <= EPSILON) || (tcube >= resT) ) continue;
-		// ray intersects with parent tree, check children branches
-		for ( uint i = 0; i < TREE_SIZE; ++i ) {
-			uint branchId = tree.children[i];
-			// unallocated, skip
-			if ( branchId == UINT32_MAX ) continue;
-			Cube primitive = cubes[branchId];
-			if ( primitive.type == PRIMITIVE_TYPE_EMPTY ) continue;
-			tcube = cubeIntersect( rayO, rayD, rayDRecip, primitive );
-			// branch intersects with ray, set as new parent
-			if ( (tcube <= EPSILON) || (tcube >= resT) ) continue;
-			id = branchId;
-			resT = tcube;
-		}
-	}
-	return id;
-}
-
-float calcShadow(in vec3 rayO, in vec3 rayD, in uint objectId, inout float t, uint start, uint end) {
-	vec3 rayDRecip = 1.0f / rayD;
-	for (uint i = ubo.cubes.start; i < ubo.cubes.end && i < cubes.length(); i++) {
-		if (i == objectId) continue;
-		float tCube = cubeIntersect(rayO, rayD, rayDRecip, cubes[i]);
-		if ((tCube > EPSILON) && (tCube < t)) {
-			t = tCube;
+float calcShadow(in vec3 rayO, in vec3 rayD, in int objectID, inout float resT) {
+	for (int i = 0; i < shapes.length(); i++) {
+		if ( i == objectID ) continue;
+		Shape shape = shapes[i];
+		float tShape = shapeIntersect(rayO, rayD, shape);
+		if ((tShape > EPSILON) && (tShape < resT)) {
+			resT = tShape;
 			return SHADOW;
 		}
 	}
 	return 1.0;
 }
-float calcShadowTree(in vec3 rayO, in vec3 rayD, in vec3 rayDRecip, in uint objectId, inout float t){
-	// traverse the tree branches to the leaf
-	uint index = 0;
-	while ( true ) {
-		Tree tree = trees[index++];
-		if ( tree.type == PRIMITIVE_TYPE_EMPTY ) break;
-		if ( tree.type != PRIMITIVE_TYPE_LEAF ) continue;
-		float tcube = treeIntersect( rayO, rayD, rayDRecip, tree );
-		// ray fails collision with parent tree
-		if ( (tcube <= EPSILON) || (tcube >= t) ) continue;
-		// ray intersects with parent tree, check children branches
-		for ( uint i = 0; i < TREE_SIZE; ++i ) {
-			uint branchId = tree.children[i];
-			// unallocated, skip
-			if ( branchId == UINT32_MAX ) continue;
-			Cube primitive = cubes[branchId];
-			if ( primitive.type == PRIMITIVE_TYPE_EMPTY ) continue;
-			if ( branchId == objectId ) continue;
-			tcube = cubeIntersect( rayO, rayD, rayDRecip, primitive );
-			// branch intersects with ray, set as new parent
-			if ( (tcube <= EPSILON) || (tcube >= t) ) continue;
-			t = tcube;
+// Marching ========================================
+int intersectMarch( in vec3 rayO, in vec3 rayD, inout float resT ) {
+	resT = 0;
+	for (int i = 0; i < MARCH_STEPS; ++i) {
+		vec3 position = resT * rayD + rayO;
+		float tNearest = MAXLEN;
+		int objectID = -1;
+		for ( int j = 0; j < shapes.length(); ++j ) {
+			Shape shape = shapes[j];
+			float tShape = shapeSDF(position, shape);
+		//	if ((tShape > EPSILON) && (tShape < tNearest)) {
+			if ( tShape < tNearest ) {
+				objectID = j;
+				tNearest = tShape;
+			}
+		}
+		if (tNearest < EPSILON) {
+			return objectID;
+		}
+		if (resT > MAXLEN) break;
+		resT += tNearest;
+	}
+	resT = MAXLEN;
+	return -1;
+}
+float calcShadowMarch( in vec3 rayO, in vec3 rayD, in int objectID, inout float resT ) {
+	float distance = resT;
+	resT = 0;
+	for (int i = 0; i < MARCH_STEPS; ++i) {
+		vec3 position = resT * rayD + rayO;
+		float tNearest = distance;
+		int objectID = -1;
+		for ( int j = 0; j < shapes.length(); ++j ) {
+			if ( j == objectID ) continue;
+			Shape shape = shapes[j];
+			float tShape = shapeSDF(position, shape);
+		//	if ((tShape > EPSILON) && (tShape < tNearest)) {
+			if ( tShape < tNearest ) {
+				objectID = j;
+				tNearest = tShape;
+			}
+		}
+		if (tNearest < EPSILON) {
 			return SHADOW;
 		}
+		if (resT > distance) break;
+		resT += tNearest;
 	}
+	resT = distance;
 	return 1.0;
 }
 
 vec3 fog(in float t, in vec3 color) {
-	return mix(color, vec3(0, 0, 0), clamp(sqrt(t*t)/20.0, 0.0, 1.0));
+	vec3 fogColor = vec3(0.1);
+	return mix(color, fogColor.rgb, clamp(sqrt(t*t)/20.0, 0.0, 1.0));
 }
 
-vec3 renderScene(inout vec3 rayO, inout vec3 rayD, inout uint id) {
-	float t = MAXLEN;
-	vec3 rayDRecip = 1.0f / rayD;
+Result renderScene(inout vec3 rayO, inout vec3 rayD ) {
+	Result result;
+	result.color = vec3(0.0);
+	result.t = MAXLEN;
+	result.id = RAY_MARCH ? intersectMarch(rayO, rayD, result.t) : intersect(rayO, rayD, result.t);
+	if (result.id == -1) return result;
 	
-	// Get intersected object ID
-	uint objectID = intersect(rayO, rayD, t, ubo.cubes.start, ubo.cubes.end );
-//	uint objectID = intersectTree( rayO, rayD, rayDRecip, t );
-//	uint objectID = intersectTreecursive( rayO, rayD, rayDRecip, t, ubo.root );
+	Shape shape = shapes[result.id];
+	vec3 position = rayO + result.t * rayD;
+	vec3 normal = shapeNormal( position, shape );
 
-	vec3 color = vec3(0.0);
-	if ( objectID == UINT32_MAX ) return color;
+	for ( uint i = 0; i < LIGHTS; ++i ) {
+		Light light = ubo.lights[i];
+		if ( light.radius <= EPSILON ) continue;
+		if ( light.power <= EPSILON ) continue;
 
-	vec3 pos = rayO + t * rayD;
-	vec3 normal;
+		vec3 L = light.position - position;
+		float dist = length(L);
+		vec3 D = normalize(L);
+		float attenuation = light.radius / (pow(dist, 2.0) + 1.0);;
+		attenuation = 1;
+	//	if ( dist > light.radius ) continue;
 		
-	// Cubes
-	if ( id == UINT32_MAX ) return color;
-	id = objectID;
-	// Hit Data
-	{
-		Cube cube = cubes[objectID];
-		vec2 mappedUv = vec2(0, 0); {
-			float min_distance = MAXLEN;
-			vec3 point = cube.position.xyz - pos;
-			float distance = abs(cube.position.w - abs(point.x));
-			if (distance < min_distance) {
-				min_distance = distance;
-				normal = vec3(-1, 0, 0);
-				if ( cube.position.w + point.x <= EPSILON ) normal *= -1;
+		vec4 albedoSpecular = shape.albedoSpecular;
 
-				mappedUv.x = point.y - cube.position.y;
-				mappedUv.y = point.z - cube.position.z;
-			}
-			distance = abs(cube.position.w - abs(point.y));
-			if (distance < min_distance) {
-				min_distance = distance;
-				normal = vec3(0, -1, 0);
-				if ( cube.position.w + point.y <= EPSILON ) normal *= -1;
+		float d_dot = lightDiffuse(normal, D);
+		float s_factor = lightSpecular(normal, D, albedoSpecular.a);
+		vec3 color = (light.color * albedoSpecular.rgb) * d_dot + s_factor;
 
-				mappedUv.x = point.x - cube.position.x;
-				mappedUv.y = point.z - cube.position.z;
-			}
-			distance = abs(cube.position.w - abs(point.z));
-			if (distance < min_distance) {
-				min_distance = distance;
-				normal = vec3(0, 0, -1);
-				if ( cube.position.w + point.z <= EPSILON ) normal *= -1;
-
-				mappedUv.x = point.x - cube.position.x;
-				mappedUv.y = point.y - cube.position.y;
-			}
-			mappedUv -= 2.0f / 4.0f;
-			mappedUv *= 1.0f / 4.0f;
-			mappedUv.x = mod(mappedUv.x, 1.0f / 4.0f);
-			mappedUv.y = mod(mappedUv.y, 1.0f / 4.0f);
-		}
-		vec3 textureMapped = texture(samplerTexture, mappedUv).rgb;
-		color = textureMapped;
-	}
-	// Lighting
-	{
-		int di = 0;
-		vec4 diffuses[256];
-		for ( int j = 0; j < lights.length(); ++j ) {	
-			Light light = lights[j];
-			if ( light.color.r <= EPSILON && light.color.g <= EPSILON && light.color.b <= EPSILON ) continue;
-			vec3 lightVec = normalize(light.position - pos);
-			float diffuse = lightDiffuse(normal, lightVec);
-			float specular = lightSpecular(normal, lightVec, 2000.0f);
-			diffuses[di].x = length(light.position - pos);
-			diffuses[di].gba = diffuse * light.color + specular;
-			++di;
-		}
-		vec4 a = vec4(MAXLEN, vec3(1.0));
-		vec4 b = vec4(MAXLEN, vec3(1.0));
-		vec4 c = vec4(MAXLEN, vec3(1.0));
-		for ( int j = 0; j < lights.length(); ++j ) {
-			vec4 current = diffuses[j];
-			if ( current.y <= EPSILON ) continue;
-			// use slot a
-			if ( current.x < a.x ) {
-				c = b;
-				b = a;
-				a = current;
-			} else if ( current.x < b.x ) {
-				c = b;
-				b = current;
-			} else if ( current.x < c.x ) {
-				c = current;
-			}
-		}
-		vec3 avg = (a.gba * 0.5 + b.gba * 0.3 + c.gba * 0.2);
-		color *= avg;
-	}
-	// Shadows
-	{
-		vec3 lightVec = vec3(0, 4, 0) - pos;
-		t = length(lightVec);
-		color *= calcShadow(pos, lightVec, id, t, ubo.cubes.start, ubo.cubes.end);
-	//	color *= calcShadowTree(pos, lightVec, rayDRecip, id, t);
+		// Shadows
+		float tShadow = dist;
+		float shadowed = 1;
+		if ( SHADOWS )
+			shadowed = RAY_MARCH ? calcShadowMarch(position, D, result.id, tShadow) : calcShadow(position, D, result.id, tShadow);
+		result.color += color * light.power * attenuation * shadowed;
 	}
 
 	// Fog
-	// color = fog(t, color);	
+	// result.color = fog(t, result.color);
 
 	// Reflect ray for next render pass
 	reflectRay(rayD, normal);
-	rayO = pos;
+	rayO = position;	
 	
-	return color;
+	return result;
 }
 
 void main() {
-	ivec2 dim = imageSize(resultImage);
-	vec2 uv = vec2(gl_GlobalInvocationID.xy) / dim;
+	for ( int pass = 0; pass < EYES; ++pass ) {
+		{
+			vec2 uv = vec2(gl_GlobalInvocationID.xy) / imageSize(resultImage[pass]);
+			vec4 near4 = ubo.matrices[pass] * (vec4(2.0 * uv - 1.0, -1.0, 1.0));
+			vec4 far4 = ubo.matrices[pass] * (vec4(2.0 * uv - 1.0, 1.0, 1.0));
+			vec3 near3 = near4.xyz / near4.w;
+			vec3 far3 = far4.xyz / far4.w;
 
-	vec3 rayO = ubo.camera.position; // * vec3(1,1,-1);
-	vec3 rayD = normalize(vec3((-1.0 + 2.0 * uv) * vec2(ubo.camera.aspectRatio, 1.0), -1.0));
-	rayD = (ubo.camera.view * vec4( rayD, 0.0 )).xyz;
-		
-	// Basic color path
-	uint id = 0;
-	vec3 finalColor = renderScene(rayO, rayD, id);
-	
-	// Reflection
-	if ( REFLECTIONS ) {
-		float reflectionStrength = REFLECTIONSTRENGTH;
-		for (int i = 0; i < RAYBOUNCES; i++) {
-			vec3 reflectionColor = renderScene(rayO, rayD, id);
-			finalColor = (1.0 - reflectionStrength) * finalColor + reflectionStrength * mix(reflectionColor, finalColor, 1.0 - reflectionStrength);			
-			reflectionStrength *= REFLECTIONFALLOFF;
+			state.viewPosition = near3;
+			state.ray.origin = near3;
+			state.ray.direction = normalize( far3 - near3 );
 		}
-	}
 
-	imageStore(resultImage, ivec2(gl_GlobalInvocationID.xy), vec4(finalColor, 0.0));
+		// Basic color path
+		state.result = renderScene(state.ray.origin, state.ray.direction);
+		vec3 finalColor = state.result.color;
+		
+		// Reflection
+		float reflectionStrength = REFLECTION_STRENGTH;
+		for (int i = 0; i < RAYBOUNCES; i++) {
+			Result result = renderScene(state.ray.origin, state.ray.direction);
+			vec3 reflectionColor = result.color;
+
+			finalColor = (1.0 - reflectionStrength) * finalColor + reflectionStrength * mix(reflectionColor, finalColor, 1.0 - reflectionStrength);
+			reflectionStrength *= REFLECTION_FALLOFF;
+		}
+				
+		imageStore(resultImage[pass], ivec2(gl_GlobalInvocationID.xy), vec4(finalColor, 1.0));
+	}
 }

bin/data/shaders/texture.frag.glsl

@@ -5,7 +5,7 @@ layout (location = 0) in vec2 inUV;
 layout (location = 0) out vec4 outFragColor;
 
 void main() {
-	vec4 sampledColor = texture(samplerColor, vec2(inUV.s, 1.0 - inUV.t));
+	vec4 sampledColor = texture(samplerColor, inUV);
 	if ( sampledColor.r <= 0.000001 && sampledColor.g <= 0.000001 && sampledColor.b <= 0.000001 ) discard;
 	outFragColor = sampledColor;
 }

engine/inc/uf/ext/vulkan/device.h

@@ -12,21 +12,33 @@ namespace ext {
 			VkSurfaceKHR surface;
 			VkPhysicalDevice physicalDevice;
 			VkDevice logicalDevice;
-			VkCommandPool commandPool = VK_NULL_HANDLE;
+			struct {
+				VkCommandPool graphics = VK_NULL_HANDLE;
+				VkCommandPool compute = VK_NULL_HANDLE;
+				VkCommandPool transfer = VK_NULL_HANDLE;
+			} commandPool;
 
 			VkPhysicalDeviceProperties properties;
 			VkPhysicalDeviceFeatures features;
 			VkPhysicalDeviceFeatures enabledFeatures;
 			VkPhysicalDeviceMemoryProperties memoryProperties;
 			
+			VkPhysicalDeviceProperties2 properties2;
+			VkPhysicalDeviceFeatures2 features2;
+			VkPhysicalDeviceFeatures2 enabledFeatures2;
+			VkPhysicalDeviceMemoryProperties2 memoryProperties2;
+			
 			VkPipelineCache pipelineCache;
 
 			std::vector<VkQueueFamilyProperties> queueFamilyProperties;
 			std::vector<std::string> supportedExtensions;
 			
-			VkQueue graphicsQueue;
-			VkQueue presentQueue;
-			VkQueue computeQueue;
+			struct {
+				VkQueue graphics;
+				VkQueue present;
+				VkQueue compute;
+				VkQueue transfer;
+			} queues;
 
 			uf::Window* window;
 
@@ -41,7 +53,6 @@ namespace ext {
 				uint32_t present;
 				uint32_t compute;
 				uint32_t transfer;
-
 			} queueFamilyIndices;
 			operator VkDevice() { return this->logicalDevice; };
 			
@@ -51,7 +62,7 @@ namespace ext {
 			int rate( VkPhysicalDevice device );
 			
 			VkCommandBuffer createCommandBuffer( VkCommandBufferLevel level, bool begin = false );
-			void flushCommandBuffer( VkCommandBuffer commandBuffer, VkQueue queue, bool free = true );
+			void flushCommandBuffer( VkCommandBuffer commandBuffer, bool free = true );
 
 			VkResult createBuffer(
 				VkBufferUsageFlags usageFlags,

engine/inc/uf/ext/vulkan/rendermode.h

@@ -32,6 +32,7 @@ namespace ext {
 			virtual void render();
 			virtual void destroy();
 			virtual void synchronize( uint64_t = UINT64_MAX );
+			virtual void pipelineBarrier( VkCommandBuffer, uint8_t = -1 );
 		};
 	}
 }

engine/inc/uf/ext/vulkan/rendermodes/compute.h

@@ -0,0 +1,23 @@
+#pragma once
+
+#include <uf/ext/vulkan/rendermode.h>
+#include <uf/ext/vulkan/graphic.h>
+
+namespace ext {
+	namespace vulkan {
+		struct UF_API ComputeRenderMode : public ext::vulkan::RenderMode {
+			ext::vulkan::Graphic blitter, compute;
+			pod::Vector2ui dispatchSize = { 32, 32 };
+
+			// RAII
+			virtual std::string getType() const;
+			
+			virtual void createCommandBuffers();
+			virtual void initialize( Device& device );
+			virtual void tick();
+			virtual void render();
+			virtual void destroy();
+			virtual void pipelineBarrier( VkCommandBuffer, uint8_t = -1 );
+		};
+	}
+}

engine/inc/uf/ext/vulkan/rendermodes/rendertarget.h

@@ -20,6 +20,7 @@ namespace ext {
 			virtual void tick();
 			virtual void destroy();
 			virtual void render();
+			virtual void pipelineBarrier( VkCommandBuffer, uint8_t = -1 );
 		};
 	}
 }

engine/inc/uf/ext/vulkan/texture.h

@@ -89,7 +89,6 @@ namespace ext {
 			void loadFromFile(
 				std::string filename, 
 				Device& device,
-				VkQueue copyQueue,
 				VkFormat format = VK_FORMAT_R8G8B8A8_UNORM,
 				VkImageUsageFlags imageUsageFlags = VK_IMAGE_USAGE_SAMPLED_BIT,
 				VkImageLayout imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL, 
@@ -98,7 +97,6 @@ namespace ext {
 			void loadFromImage(
 				uf::Image& image, 
 				Device& device,
-				VkQueue copyQueue,
 				VkFormat format = VK_FORMAT_R8G8B8A8_UNORM,
 				VkImageUsageFlags imageUsageFlags = VK_IMAGE_USAGE_SAMPLED_BIT,
 				VkImageLayout imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL, 
@@ -118,7 +116,6 @@ namespace ext {
 				uint32_t texWidth,
 				uint32_t texHeight,
 				Device& device,
-				VkQueue copyQueue,
 				VkImageUsageFlags imageUsageFlags = VK_IMAGE_USAGE_SAMPLED_BIT,
 				VkImageLayout imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL
 			);
@@ -126,7 +123,6 @@ namespace ext {
 				Device& device,
 				uint32_t texWidth,
 				uint32_t texHeight,
-				VkQueue copyQueue,
 				VkFormat format = VK_FORMAT_R8G8B8A8_UNORM
 			);
 			void aliasAttachment( const RenderTarget::Attachment& attachment, bool = true );

engine/inc/uf/ext/vulkan/vulkan.h

@@ -45,6 +45,8 @@ namespace ext {
 		extern UF_API bool validation;
 		extern UF_API std::vector<std::string> validationFilters;
 		extern UF_API std::vector<std::string> requestedDeviceFeatures;
+		extern UF_API std::vector<std::string> requestedDeviceExtensions;
+		extern UF_API std::vector<std::string> requestedInstanceExtensions;
 		extern UF_API Device device;
 		typedef VmaAllocator Allocator;
 		extern UF_API Allocator allocator;
@@ -60,9 +62,11 @@ namespace ext {
 		extern UF_API std::vector<RenderMode*> renderModes;
 		extern UF_API std::vector<uf::Scene*> scenes;
 
+		bool UF_API hasRenderMode( const std::string&, bool = true );
 		RenderMode& UF_API addRenderMode( RenderMode*, const std::string& = "" );
 		RenderMode& UF_API getRenderMode( const std::string&, bool = true );
 		std::vector<RenderMode*> UF_API getRenderModes( const std::string&, bool = true );
+		std::vector<RenderMode*> UF_API getRenderModes( const std::vector<std::string>&, bool = true );
 		void UF_API removeRenderMode( RenderMode*, bool = true );
 
 		void UF_API initialize( uint8_t = 0 );

engine/src/engine/scene/scene.cpp

@@ -5,6 +5,7 @@
 
 #include <uf/ext/vulkan/rendermodes/deferred.h>
 #include <uf/ext/vulkan/rendermodes/rendertarget.h>
+#include <uf/ext/vulkan/rendermodes/compute.h>
 #include <uf/ext/vulkan/rendermodes/stereoscopic_deferred.h>
 
 UF_OBJECT_REGISTER_CPP(Scene)
@@ -25,7 +26,16 @@ void uf::Scene::tick() {
 
 			std::vector<ext::vulkan::Graphic*> blitters;
 			auto& renderMode = ext::vulkan::getRenderMode("", true);
-			if ( renderMode.getType() == "Deferred (Stereoscopic)" ) {
+			bool hasCompute = ext::vulkan::hasRenderMode("C:RT:" + std::to_string(this->getUid()), true);
+			if ( hasCompute ) {
+		//		auto& renderMode = ext::vulkan::getRenderMode("C:RT:" + std::to_string(this->getUid()), true);
+		//		auto* renderModePointer = (ext::vulkan::ComputeRenderMode*) &renderMode;
+		//		if ( renderModePointer->compute.initialized ) {
+		//			blitters.push_back(&renderModePointer->compute);
+		//		} else {
+		//			hasCompute = false;
+		//		}
+			} else if ( renderMode.getType() == "Deferred (Stereoscopic)" ) {
 				auto* renderModePointer = (ext::vulkan::StereoscopicDeferredRenderMode*) &renderMode;
 				blitters.push_back(&renderModePointer->blitters.left);
 				blitters.push_back(&renderModePointer->blitters.right);
@@ -134,18 +144,18 @@ void uf::Scene::tick() {
 
 						if ( entity == &controller ) light.position.y += 2;
 
-						light.position.w = metadata["light"]["power"].asFloat();
+						light.position.w = metadata["light"]["radius"].asFloat();
 
 						light.color.x = metadata["light"]["color"][0].asFloat();
 						light.color.y = metadata["light"]["color"][1].asFloat();
 						light.color.z = metadata["light"]["color"][2].asFloat();
 
-						light.color.w = metadata["light"]["radius"].asFloat();
+						light.color.w = metadata["light"]["power"].asFloat();
 
 						light.type.x = metadata["light"]["type"].asUInt64();
 						light.type.y = metadata["light"]["shadows"]["enabled"].asBool();
 						
-						if ( entity->hasComponent<ext::vulkan::RenderTargetRenderMode>() ) {
+						if ( !hasCompute && entity->hasComponent<ext::vulkan::RenderTargetRenderMode>() ) {
 							auto& renderMode = entity->getComponent<ext::vulkan::RenderTargetRenderMode>();
 							auto& renderTarget = renderMode.renderTarget;
 

engine/src/ext/openvr/openvr.cpp

@@ -288,7 +288,7 @@ void ext::openvr::tick() {
 			graphic.initializeGeometry(mesh);
 		
 			auto& texture = graphic.material.textures.emplace_back();
-			texture.fromBuffers( (void*) queued.texture->rubTextureMapData, len, VK_FORMAT_R8G8B8A8_UNORM, queued.texture->unWidth, queued.texture->unHeight, ext::vulkan::device, ext::vulkan::device.graphicsQueue );
+			texture.fromBuffers( (void*) queued.texture->rubTextureMapData, len, VK_FORMAT_R8G8B8A8_UNORM, queued.texture->unWidth, queued.texture->unHeight, ext::vulkan::device );
 		}
 		// clear
 		{
@@ -455,7 +455,7 @@ void ext::openvr::submit() { bool invert = swapEyes;
 	vulkanData.m_pDevice = ( VkDevice_T * ) ext::vulkan::device;
 	vulkanData.m_pPhysicalDevice = ( VkPhysicalDevice_T * ) ext::vulkan::device.physicalDevice;
 	vulkanData.m_pInstance = ( VkInstance_T *) ext::vulkan::device.instance;
-	vulkanData.m_pQueue = ( VkQueue_T * ) ext::vulkan::device.presentQueue;
+	vulkanData.m_pQueue = ( VkQueue_T * ) ext::vulkan::device.queues.present;
 	vulkanData.m_nQueueFamilyIndex = ext::vulkan::device.queueFamilyIndices.present;
 
 	vulkanData.m_nWidth = width;

engine/src/ext/vulkan/buffer.cpp

@@ -176,7 +176,7 @@ size_t ext::vulkan::Buffers::initializeBuffer( void* data, VkDeviceSize length,
 		return index;
 	}
 
-	VkQueue queue = device->graphicsQueue;
+	// VkQueue queue = device->queues.transfer;
 	Buffer staging;
 	VkDeviceSize storageBufferSize = length;
 	device->createBuffer(
@@ -199,7 +199,7 @@ size_t ext::vulkan::Buffers::initializeBuffer( void* data, VkDeviceSize length,
 	VkBufferCopy copyRegion = {};
 	copyRegion.size = storageBufferSize;
 	vkCmdCopyBuffer(copyCmd, staging.buffer, buffer.buffer, 1, &copyRegion);
-	device->flushCommandBuffer(copyCmd, queue, true);
+	device->flushCommandBuffer(copyCmd, true);
 	staging.destroy();
 
 //	buffers.push_back( std::move(buffer) );
@@ -225,7 +225,7 @@ void ext::vulkan::Buffers::updateBuffer( void* data, VkDeviceSize length, Buffer
 		buffer.unmap();
 		return;
 	}
-	VkQueue queue = device->graphicsQueue;
+	// VkQueue queue = device->queues.transfer;
 	Buffer staging;
 	device->createBuffer(
 		VK_BUFFER_USAGE_TRANSFER_SRC_BIT,
@@ -240,6 +240,6 @@ void ext::vulkan::Buffers::updateBuffer( void* data, VkDeviceSize length, Buffer
 	VkBufferCopy copyRegion = {};
 	copyRegion.size = length;
 	vkCmdCopyBuffer(copyCmd, staging.buffer, buffer.buffer, 1, &copyRegion);
-	device->flushCommandBuffer(copyCmd, queue, true);
+	device->flushCommandBuffer(copyCmd, true);
 	staging.destroy();
 }

engine/src/ext/vulkan/device.cpp

@@ -258,7 +258,7 @@ int ext::vulkan::Device::rate( VkPhysicalDevice device ) {
 }
 
 VkCommandBuffer ext::vulkan::Device::createCommandBuffer( VkCommandBufferLevel level, bool begin ){
-	VkCommandBufferAllocateInfo cmdBufAllocateInfo = ext::vulkan::initializers::commandBufferAllocateInfo( commandPool, level, 1 );
+	VkCommandBufferAllocateInfo cmdBufAllocateInfo = ext::vulkan::initializers::commandBufferAllocateInfo( commandPool.transfer, level, 1 );
 
 	VkCommandBuffer commandBuffer;
 	VK_CHECK_RESULT( vkAllocateCommandBuffers( logicalDevice, &cmdBufAllocateInfo, &commandBuffer ) );
@@ -270,7 +270,7 @@ VkCommandBuffer ext::vulkan::Device::createCommandBuffer( VkCommandBufferLevel l
 	return commandBuffer;
 }
 
-void ext::vulkan::Device::flushCommandBuffer( VkCommandBuffer commandBuffer, VkQueue queue, bool free ) {
+void ext::vulkan::Device::flushCommandBuffer( VkCommandBuffer commandBuffer, bool free ) {
 	if ( commandBuffer == VK_NULL_HANDLE ) return;
 
 	VK_CHECK_RESULT( vkEndCommandBuffer( commandBuffer ) );
@@ -285,13 +285,13 @@ void ext::vulkan::Device::flushCommandBuffer( VkCommandBuffer commandBuffer, VkQ
 	VK_CHECK_RESULT(vkCreateFence(logicalDevice, &fenceInfo, nullptr, &fence));
 	
 	// Submit to the queue
-	VK_CHECK_RESULT(vkQueueSubmit(queue, 1, &submitInfo, fence));
+	VK_CHECK_RESULT(vkQueueSubmit(device.queues.transfer, 1, &submitInfo, fence));
 	// Wait for the fence to signal that command buffer has finished executing
 	VK_CHECK_RESULT(vkWaitForFences(logicalDevice, 1, &fence, VK_TRUE, DEFAULT_FENCE_TIMEOUT));
 
 	vkDestroyFence(logicalDevice, fence, nullptr);
 
-	if ( free ) vkFreeCommandBuffers(logicalDevice, commandPool, 1, &commandBuffer);
+	if ( free ) vkFreeCommandBuffers(logicalDevice, commandPool.transfer, 1, &commandBuffer);
 }
 
 VkResult ext::vulkan::Device::createBuffer( VkBufferUsageFlags usageFlags, VkMemoryPropertyFlags memoryPropertyFlags, VkDeviceSize size, VkBuffer* buffer, VkDeviceMemory* memory, void *data ) {
@@ -406,8 +406,10 @@ void ext::vulkan::Device::initialize() {
 	}
 	// 
 	// Get extensions
-	// OpenVR Support
 	std::vector<std::string> requestedExtensions = window->getExtensions( ext::vulkan::validation );
+	// Load any requested extensions
+	requestedExtensions.insert( requestedExtensions.end(), ext::vulkan::requestedInstanceExtensions.begin(), ext::vulkan::requestedInstanceExtensions.end() );
+	// OpenVR Support
 	if ( ext::openvr::enabled ) VRExtensions(requestedExtensions);
 
 	{
@@ -508,11 +510,20 @@ void ext::vulkan::Device::initialize() {
 	}
 	// Update properties
 	{
-		vkGetPhysicalDeviceProperties( this->physicalDevice, &properties );
-		// Features should be checked by the examples before using them
-		vkGetPhysicalDeviceFeatures( this->physicalDevice, &features );
-		// Memory properties are used regularly for creating all kinds of buffers
-		vkGetPhysicalDeviceMemoryProperties( this->physicalDevice, &memoryProperties );
+		{
+			vkGetPhysicalDeviceProperties( this->physicalDevice, &properties );
+			// Features should be checked by the examples before using them
+			vkGetPhysicalDeviceFeatures( this->physicalDevice, &features );
+			// Memory properties are used regularly for creating all kinds of buffers
+			vkGetPhysicalDeviceMemoryProperties( this->physicalDevice, &memoryProperties );
+		}
+		{
+			vkGetPhysicalDeviceProperties2( this->physicalDevice, &properties2 );
+			// Features should be checked by the examples before using them
+			vkGetPhysicalDeviceFeatures2( this->physicalDevice, &features2 );
+			// Memory properties are used regularly for creating all kinds of buffers
+			vkGetPhysicalDeviceMemoryProperties2( this->physicalDevice, &memoryProperties2 );
+		}
 		// Queue family properties, used for setting up requested queues upon device creation
 		uint32_t queueFamilyCount;
 		vkGetPhysicalDeviceQueueFamilyProperties( this->physicalDevice, &queueFamilyCount, nullptr );
@@ -524,43 +535,45 @@ void ext::vulkan::Device::initialize() {
 	{
 		bool useSwapChain = true;
 		VkQueueFlags requestedQueueTypes = VK_QUEUE_GRAPHICS_BIT | VK_QUEUE_COMPUTE_BIT;
+		std::vector<std::string> requestedExtensions;
 		std::vector<const char*> deviceExtensions = {
 			VK_KHR_SWAPCHAIN_EXTENSION_NAME
 		};
+		requestedExtensions.insert( requestedExtensions.end(), ext::vulkan::requestedInstanceExtensions.begin(), ext::vulkan::requestedInstanceExtensions.end() );
 		/* OpenVR support */ if ( ext::openvr::enabled && vr::VRCompositor() ) {
 			uint32_t nBufferSize = vr::VRCompositor()->GetVulkanDeviceExtensionsRequired( ( VkPhysicalDevice_T * ) this->physicalDevice, nullptr, 0 );
 			if ( nBufferSize > 0 ) {
 				char pExtensionStr[nBufferSize];
 				pExtensionStr[0] = 0;
 				vr::VRCompositor()->GetVulkanDeviceExtensionsRequired( ( VkPhysicalDevice_T * ) this->physicalDevice, pExtensionStr, nBufferSize );
-				std::vector<std::string> extensions = uf::string::split( pExtensionStr, " " );
+				std::vector<std::string> vrExtensions = uf::string::split( pExtensionStr, " " );
+				requestedExtensions.insert( requestedExtensions.end(), vrExtensions.begin(), vrExtensions.end() );
+			}
+			// Allocate enough ExtensionProperties to support all extensions being enabled
+			uint32_t extensionsCount = 0;
+			uint32_t enabledExtensionsCount = 0;
 			
-				// Allocate enough ExtensionProperties to support all extensions being enabled
-				uint32_t extensionsCount = 0;
-				uint32_t enabledExtensionsCount = 0;
+			VK_CHECK_RESULT(vkEnumerateDeviceExtensionProperties( this->physicalDevice, NULL, &extensionsCount, NULL ));
+			std::vector<VkExtensionProperties> extensionProperties(extensionsCount);
+			VK_CHECK_RESULT( vkEnumerateDeviceExtensionProperties( this->physicalDevice, NULL, &extensionsCount, &extensionProperties[0] ) );
 			
-				VK_CHECK_RESULT(vkEnumerateDeviceExtensionProperties( this->physicalDevice, NULL, &extensionsCount, NULL ));
-				std::vector<VkExtensionProperties> extensionProperties(extensionsCount);
-				VK_CHECK_RESULT( vkEnumerateDeviceExtensionProperties( this->physicalDevice, NULL, &extensionsCount, &extensionProperties[0] ) );
-				
-				for ( size_t i = 0; i < extensions.size(); ++i ) {
-					bool found = false;
-					uint32_t index = 0;
-					for ( index = 0; index < extensionsCount; index++ ) {
-						if ( strcmp( extensions[i].c_str(), extensionProperties[index].extensionName ) == 0 ) {
-							for ( auto alreadyAdded : deviceExtensions ) {
-								if ( strcmp( extensions[i].c_str(), alreadyAdded ) == 0 ) {
-									found = true;
-									break;
-								}
+			for ( size_t i = 0; i < requestedExtensions.size(); ++i ) {
+				bool found = false;
+				uint32_t index = 0;
+				for ( index = 0; index < extensionsCount; index++ ) {
+					if ( strcmp( requestedExtensions[i].c_str(), extensionProperties[index].extensionName ) == 0 ) {
+						for ( auto alreadyAdded : deviceExtensions ) {
+							if ( strcmp( requestedExtensions[i].c_str(), alreadyAdded ) == 0 ) {
+								found = true;
+								break;
 							}
-							if ( found ) break;
-							found = true;
-							deviceExtensions.push_back(extensionProperties[index].extensionName);
 						}
+						if ( found ) break;
+						found = true;
+						deviceExtensions.push_back(extensionProperties[index].extensionName);
 					}
-					if ( !found ) std::cout << "Vulkan missing requested extension " << extensions[index] << std::endl;
 				}
+				if ( !found ) std::cout << "Vulkan missing requested extension " << requestedExtensions[index] << std::endl;
 			}
 		}
 
@@ -648,8 +661,26 @@ void ext::vulkan::Device::initialize() {
 		cmdPoolInfo.sType = VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO;
 		cmdPoolInfo.queueFamilyIndex = queueFamilyIndices.graphics;
 		cmdPoolInfo.flags = createFlags;
-		if ( vkCreateCommandPool( this->logicalDevice, &cmdPoolInfo, nullptr, &commandPool ) != VK_SUCCESS )
-			throw std::runtime_error("failed to create command pool!");
+		if ( vkCreateCommandPool( this->logicalDevice, &cmdPoolInfo, nullptr, &commandPool.graphics ) != VK_SUCCESS )
+			throw std::runtime_error("failed to create command pool for graphics!");
+	}
+	{
+		VkCommandPoolCreateFlags createFlags = VK_COMMAND_POOL_CREATE_RESET_COMMAND_BUFFER_BIT;
+		VkCommandPoolCreateInfo cmdPoolInfo = {};
+		cmdPoolInfo.sType = VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO;
+		cmdPoolInfo.queueFamilyIndex = queueFamilyIndices.compute;
+		cmdPoolInfo.flags = createFlags;
+		if ( vkCreateCommandPool( this->logicalDevice, &cmdPoolInfo, nullptr, &commandPool.compute ) != VK_SUCCESS )
+			throw std::runtime_error("failed to create command pool for compute!");
+	}
+	{
+		VkCommandPoolCreateFlags createFlags = VK_COMMAND_POOL_CREATE_RESET_COMMAND_BUFFER_BIT;
+		VkCommandPoolCreateInfo cmdPoolInfo = {};
+		cmdPoolInfo.sType = VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO;
+		cmdPoolInfo.queueFamilyIndex = queueFamilyIndices.transfer;
+		cmdPoolInfo.flags = createFlags;
+		if ( vkCreateCommandPool( this->logicalDevice, &cmdPoolInfo, nullptr, &commandPool.transfer ) != VK_SUCCESS )
+			throw std::runtime_error("failed to create command pool for transfer!");
 	}
 	// Set queue
 	{
@@ -681,9 +712,10 @@ void ext::vulkan::Device::initialize() {
 
 		device.queueFamilyIndices.present = presentQueueNodeIndex;
 
-		vkGetDeviceQueue( device, device.queueFamilyIndices.graphics, 0, &graphicsQueue );
-		vkGetDeviceQueue( device, device.queueFamilyIndices.present, 0, &presentQueue );
-		vkGetDeviceQueue( device, device.queueFamilyIndices.compute, 0, &computeQueue );
+		vkGetDeviceQueue( device, device.queueFamilyIndices.graphics, 0, &queues.graphics );
+		vkGetDeviceQueue( device, device.queueFamilyIndices.present, 0, &queues.present );
+		vkGetDeviceQueue( device, device.queueFamilyIndices.compute, 0, &queues.compute );
+		vkGetDeviceQueue( device, device.queueFamilyIndices.transfer, 0, &queues.transfer );
 	}
 	// Set formats
 	{
@@ -750,9 +782,17 @@ void ext::vulkan::Device::destroy() {
 		vkDestroyPipelineCache( this->logicalDevice, this->pipelineCache, nullptr );
 		this->pipelineCache = nullptr;
 	}
-	if ( this->commandPool ) {
-		vkDestroyCommandPool( this->logicalDevice, this->commandPool, nullptr );
-		this->commandPool = nullptr;
+	if ( this->commandPool.graphics ) {
+		vkDestroyCommandPool( this->logicalDevice, this->commandPool.graphics, nullptr );
+		this->commandPool.graphics = nullptr;
+	}
+	if ( this->commandPool.compute ) {
+		vkDestroyCommandPool( this->logicalDevice, this->commandPool.compute, nullptr );
+		this->commandPool.compute = nullptr;
+	}
+	if ( this->commandPool.transfer ) {
+		vkDestroyCommandPool( this->logicalDevice, this->commandPool.transfer, nullptr );
+		this->commandPool.transfer = nullptr;
 	}
 	if ( this->logicalDevice ) {
 		vkDestroyDevice( this->logicalDevice, nullptr );

engine/src/ext/vulkan/graphic.cpp

@@ -61,10 +61,17 @@ void ext::vulkan::Shader::initialize( ext::vulkan::Device& device, const std::st
 		auto parseResource = [&]( const spirv_cross::Resource& resource, VkDescriptorType descriptorType ) {			
 			switch ( descriptorType ) {
 				case VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER: {
-					const auto& base_type = comp.get_type(resource.base_type_id);
     				auto& uniform = uniforms.emplace_back();
+					const auto& base_type = comp.get_type(resource.base_type_id);
     				uniform.create( comp.get_declared_struct_size(base_type) );
 				} break;
+			/*
+				case VK_DESCRIPTOR_TYPE_STORAGE_BUFFER: {
+    				auto& uniform = uniforms.emplace_back();
+					// const auto& base_type = comp.get_type(resource.base_type_id);
+    				// uniform.create( comp.get_declared_struct_size(base_type) );
+				} break;
+			*/
 			}
 
 			const auto& type = comp.get_type(resource.type_id);
@@ -73,7 +80,8 @@ void ext::vulkan::Shader::initialize( ext::vulkan::Device& device, const std::st
 
 			descriptorSetLayoutBindings.push_back( ext::vulkan::initializers::descriptorSetLayoutBinding( descriptorType, stage, comp.get_decoration(resource.id, spv::DecorationBinding), size ) );
 		};
-		//	std::cout << "Found resource: "#type " with binding: " << comp.get_decoration(resource.id, spv::DecorationBinding) << std::endl;\
+		
+		//	std::cout << "["<<filename<<"] Found resource: "#type " with binding: " << comp.get_decoration(resource.id, spv::DecorationBinding) << std::endl;\
 
 		#define LOOP_RESOURCES( key, type ) for ( const auto& resource : res.key ) {\
 			parseResource( resource, type );\
@@ -257,6 +265,21 @@ void ext::vulkan::Pipeline::initialize( Graphic& graphic ) {
 
 		VK_CHECK_RESULT(vkCreatePipelineLayout(device, &pPipelineLayoutCreateInfo, nullptr, &pipelineLayout));
 	}
+	// Compute
+	for ( auto& shader : graphic.material.shaders ) {
+		if ( shader.descriptor.stage != VK_SHADER_STAGE_COMPUTE_BIT ) continue;
+
+		// Create compute shader pipelines
+		VkComputePipelineCreateInfo computePipelineCreateInfo = ext::vulkan::initializers::computePipelineCreateInfo(
+			pipelineLayout,
+			0
+		);
+		computePipelineCreateInfo.stage = shader.descriptor;
+		VK_CHECK_RESULT(vkCreateComputePipelines(device, device.pipelineCache, 1, &computePipelineCreateInfo, nullptr, &pipeline));
+	
+		return;
+	}
+	// Graphic
 	{
 		VkPipelineInputAssemblyStateCreateInfo inputAssemblyState = ext::vulkan::initializers::pipelineInputAssemblyStateCreateInfo(
 			graphic.descriptor.topology,
@@ -272,30 +295,42 @@ void ext::vulkan::Pipeline::initialize( Graphic& graphic ) {
 		rasterizationState.lineWidth = graphic.descriptor.lineWidth;
 
 		std::vector<VkPipelineColorBlendAttachmentState> blendAttachmentStates;
-		auto& subpass = renderTarget.passes[graphic.descriptor.subpass];
-	/*
-		for ( auto& color : subpass.colors ) {
-			VkPipelineColorBlendAttachmentState blendAttachmentState = ext::vulkan::initializers::pipelineColorBlendAttachmentState(
-				0xf,
-				VK_TRUE
-			);
-			blendAttachmentState.srcColorBlendFactor = VK_BLEND_FACTOR_SRC_ALPHA;
-			blendAttachmentState.dstColorBlendFactor = VK_BLEND_FACTOR_ONE_MINUS_SRC_ALPHA;
-			blendAttachmentState.colorBlendOp = VK_BLEND_OP_ADD;
-			blendAttachmentState.srcAlphaBlendFactor = VK_BLEND_FACTOR_ONE;
-			blendAttachmentState.dstAlphaBlendFactor = VK_BLEND_FACTOR_ZERO;
-			blendAttachmentState.alphaBlendOp = VK_BLEND_OP_ADD;
-			blendAttachmentStates.push_back(blendAttachmentState);
-		}
-	*/
-		for ( auto& color : subpass.colors ) {
-			blendAttachmentStates.push_back(renderTarget.attachments[color.attachment].blendState);
-		}
-		// require blending if independentBlend is not an enabled feature
-		if ( !device.enabledFeatures.independentBlend ) {
-			for ( size_t i = 1; i < blendAttachmentStates.size(); ++i ) {
-				blendAttachmentStates[i] = blendAttachmentStates[0];
+
+		if ( renderMode.getType() != "Swapchain" ) {
+			auto& subpass = renderTarget.passes[graphic.descriptor.subpass];
+			for ( auto& color : subpass.colors ) {
+				blendAttachmentStates.push_back(renderTarget.attachments[color.attachment].blendState);
 			}
+			// require blending if independentBlend is not an enabled feature
+			if ( !device.enabledFeatures.independentBlend ) {
+				for ( size_t i = 1; i < blendAttachmentStates.size(); ++i ) {
+					blendAttachmentStates[i] = blendAttachmentStates[0];
+				}
+			}
+		} else {
+			graphic.descriptor.subpass = 0;
+
+			VkBool32 blendEnabled = VK_FALSE;
+			VkColorComponentFlags writeMask = VK_COLOR_COMPONENT_R_BIT | VK_COLOR_COMPONENT_G_BIT | VK_COLOR_COMPONENT_B_BIT;
+
+			if ( true ) {
+				blendEnabled = VK_TRUE;
+				writeMask |= VK_COLOR_COMPONENT_A_BIT;
+			}
+
+			VkPipelineColorBlendAttachmentState blendAttachmentState = ext::vulkan::initializers::pipelineColorBlendAttachmentState(
+				writeMask,
+				blendEnabled
+			);
+			if ( blendEnabled == VK_TRUE ) {
+				blendAttachmentState.srcColorBlendFactor = VK_BLEND_FACTOR_SRC_ALPHA;
+				blendAttachmentState.dstColorBlendFactor = VK_BLEND_FACTOR_ONE_MINUS_SRC_ALPHA;
+				blendAttachmentState.colorBlendOp = VK_BLEND_OP_ADD;
+				blendAttachmentState.srcAlphaBlendFactor = VK_BLEND_FACTOR_ONE;
+				blendAttachmentState.dstAlphaBlendFactor = VK_BLEND_FACTOR_ZERO;
+				blendAttachmentState.alphaBlendOp = VK_BLEND_OP_ADD;
+			}
+			blendAttachmentStates.push_back(blendAttachmentState);
 		}
 
 		VkPipelineColorBlendStateCreateInfo colorBlendState = ext::vulkan::initializers::pipelineColorBlendStateCreateInfo(
@@ -377,7 +412,11 @@ void ext::vulkan::Pipeline::initialize( Graphic& graphic ) {
 	}
 }
 void ext::vulkan::Pipeline::record( Graphic& graphic, VkCommandBuffer commandBuffer ) {
+	auto bindPoint = VK_PIPELINE_BIND_POINT_GRAPHICS;
 	for ( auto& shader : graphic.material.shaders ) {
+		if ( shader.descriptor.stage == VK_SHADER_STAGE_COMPUTE_BIT ) {
+			bindPoint = VK_PIPELINE_BIND_POINT_COMPUTE;
+		}
 		size_t offset = 0;
 		for ( auto& pushConstant : shader.pushConstants ) {
 			struct PushConstant {
@@ -395,10 +434,10 @@ void ext::vulkan::Pipeline::record( Graphic& graphic, VkCommandBuffer commandBuf
 		}
 	}
 	// Bind descriptor sets describing shader binding points
-	vkCmdBindDescriptorSets(commandBuffer, VK_PIPELINE_BIND_POINT_GRAPHICS, pipelineLayout, 0, 1, &descriptorSet, 0, nullptr);
+	vkCmdBindDescriptorSets(commandBuffer, bindPoint,	 pipelineLayout, 0, 1, &descriptorSet, 0, nullptr);
 	// Bind the rendering pipeline
 	// The pipeline (state object) contains all states of the rendering pipeline, binding it will set all the states specified at pipeline creation time
-	vkCmdBindPipeline(commandBuffer, VK_PIPELINE_BIND_POINT_GRAPHICS, pipeline);
+	vkCmdBindPipeline(commandBuffer, bindPoint, pipeline);
 }
 void ext::vulkan::Pipeline::update( Graphic& graphic ) {
 	// generate fallback empty texture
@@ -416,19 +455,22 @@ void ext::vulkan::Pipeline::update( Graphic& graphic ) {
 	RenderMode& renderMode = ext::vulkan::getRenderMode(graphic.descriptor.renderMode, true);
 	auto& renderTarget = renderMode.getRenderTarget(graphic.descriptor.renderTarget );
 
-	auto& subpass = renderTarget.passes[graphic.descriptor.subpass];
-	for ( auto& input : subpass.inputs ) {
-		inputDescriptors.push_back(ext::vulkan::initializers::descriptorImageInfo( 
-			renderTarget.attachments[input.attachment].view,
-		//	input.layout
-			input.layout == VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL ? VK_IMAGE_LAYOUT_DEPTH_STENCIL_READ_ONLY_OPTIMAL : input.layout
-		));
+	if ( graphic.descriptor.subpass < renderTarget.passes.size() ) {
+		auto& subpass = renderTarget.passes[graphic.descriptor.subpass];
+		for ( auto& input : subpass.inputs ) {
+			inputDescriptors.push_back(ext::vulkan::initializers::descriptorImageInfo( 
+				renderTarget.attachments[input.attachment].view,
+			//	input.layout
+				input.layout == VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL ? VK_IMAGE_LAYOUT_DEPTH_STENCIL_READ_ONLY_OPTIMAL : input.layout
+			));
+		}
 	}
 	{
 		for ( auto& shader : graphic.material.shaders ) {
 			auto textures = graphic.material.textures.begin();
 			auto samplers = graphic.material.samplers.begin();
-			auto buffers = shader.buffers.begin();
+			auto buffersUniforms = shader.buffers.begin();
+			auto buffersStorage = graphic.buffers.begin();
 			auto attachments = inputDescriptors.begin();
 
 			for ( auto& layout : shader.descriptorSetLayoutBindings ) {
@@ -436,7 +478,8 @@ void ext::vulkan::Pipeline::update( Graphic& graphic ) {
 				if ( layout.descriptorCount > 1 ) {
 					switch ( layout.descriptorType ) {
 						case VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER:
-						case VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE: {
+						case VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE:
+						case VK_DESCRIPTOR_TYPE_STORAGE_IMAGE: {
 							size_t imageInfosStart = imageInfos.size();
 							// assume we have a texture, and fill it in the slots as defaults
 							for ( size_t i = 0; i < layout.descriptorCount; ++i ) {
@@ -467,7 +510,8 @@ void ext::vulkan::Pipeline::update( Graphic& graphic ) {
 				VkDescriptorImageInfo* imageInfo = NULL;
 				switch ( layout.descriptorType ) {
 					case VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER:
-					case VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE: {
+					case VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE:
+					case VK_DESCRIPTOR_TYPE_STORAGE_IMAGE: {
 						if ( textures == graphic.material.textures.end() ) {
 							imageInfo = &emptyTexture.descriptor;
 							break;
@@ -482,15 +526,27 @@ void ext::vulkan::Pipeline::update( Graphic& graphic ) {
 						imageInfo = &((samplers++)->descriptor.info);
 					} break;
 					case VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER: {
-						if ( buffers == shader.buffers.end() ) {
-							std::cout << "buffers == shader.buffers.end()" << std::endl;
+						if ( buffersUniforms == shader.buffers.end() ) {
+							std::cout << "buffersUniforms == shader.buffers.end()" << std::endl;
 							break;
 						}
 						writeDescriptorSets.push_back(ext::vulkan::initializers::writeDescriptorSet(
 							descriptorSet,
 							layout.descriptorType,
 							layout.binding,
-							&((buffers++)->descriptor)
+							&((buffersUniforms++)->descriptor)
+						));
+					} break;
+					case VK_DESCRIPTOR_TYPE_STORAGE_BUFFER: {
+						if ( buffersStorage == graphic.buffers.end() ) {
+							std::cout << "buffersStorage == graphic.buffers.end()" << std::endl;
+							break;
+						}
+						writeDescriptorSets.push_back(ext::vulkan::initializers::writeDescriptorSet(
+							descriptorSet,
+							layout.descriptorType,
+							layout.binding,
+							&((buffersStorage++)->descriptor)
 						));
 					} break;
 					case VK_DESCRIPTOR_TYPE_INPUT_ATTACHMENT: {

engine/src/ext/vulkan/rendermode.cpp

@@ -49,7 +49,8 @@ void ext::vulkan::RenderMode::createCommandBuffers() {
 		scene->process(filter);
 	}
 
-	VK_CHECK_RESULT(vkWaitForFences(*device, fences.size(), fences.data(), VK_TRUE, UINT64_MAX));
+	this->synchronize();
+	//VK_CHECK_RESULT(vkWaitForFences(*device, fences.size(), fences.data(), VK_TRUE, UINT64_MAX));
 	createCommandBuffers( graphics );
 }
 void ext::vulkan::RenderMode::createCommandBuffers( const std::vector<ext::vulkan::Graphic*>& graphics ) {
@@ -77,13 +78,13 @@ void ext::vulkan::RenderMode::render() {
 	submitInfo.commandBufferCount = 1;
 
 	// Submit to the graphics queue passing a wait fence
-	VK_CHECK_RESULT(vkQueueSubmit(device->graphicsQueue, 1, &submitInfo, fences[currentBuffer]));
+	VK_CHECK_RESULT(vkQueueSubmit(device->queues.graphics, 1, &submitInfo, fences[currentBuffer]));
 	
 	// Present the current buffer to the swap chain
 	// Pass the semaphore signaled by the command buffer submission from the submit info as the wait semaphore for swap chain presentation
 	// This ensures that the image is not presented to the windowing system until all commands have been submitted
-	VK_CHECK_RESULT(swapchain.queuePresent(device->presentQueue, currentBuffer, renderCompleteSemaphore));
-	VK_CHECK_RESULT(vkQueueWaitIdle(device->presentQueue));
+	VK_CHECK_RESULT(swapchain.queuePresent(device->queues.present, currentBuffer, renderCompleteSemaphore));
+	VK_CHECK_RESULT(vkQueueWaitIdle(device->queues.present));
 }
 
 void ext::vulkan::RenderMode::initialize( Device& device ) {
@@ -101,7 +102,7 @@ void ext::vulkan::RenderMode::initialize( Device& device ) {
 		commands.resize( swapchain.buffers );
 
 		VkCommandBufferAllocateInfo cmdBufAllocateInfo = ext::vulkan::initializers::commandBufferAllocateInfo(
-			device.commandPool,
+			this->getType() == "Compute" ? device.commandPool.compute : device.commandPool.graphics,
 			VK_COMMAND_BUFFER_LEVEL_PRIMARY,
 			static_cast<uint32_t>(commands.size())
 		);
@@ -147,7 +148,7 @@ void ext::vulkan::RenderMode::destroy() {
 	renderTarget.destroy();
 	
 	if ( commands.size() > 0 ) {
-		vkFreeCommandBuffers( *device, device->commandPool, static_cast<uint32_t>(commands.size()), commands.data());
+		vkFreeCommandBuffers( *device, this->getType() == "Compute" ? device->commandPool.compute : device->commandPool.graphics, static_cast<uint32_t>(commands.size()), commands.data());
 	}
 
 	if ( renderCompleteSemaphore != VK_NULL_HANDLE ) {
@@ -163,3 +164,5 @@ void ext::vulkan::RenderMode::synchronize( uint64_t timeout ) {
 	if ( !device ) return;
 	VK_CHECK_RESULT(vkWaitForFences( *device, fences.size(), fences.data(), VK_TRUE, timeout ));
 }
+void ext::vulkan::RenderMode::pipelineBarrier( VkCommandBuffer command, uint8_t stage ) {
+}

engine/src/ext/vulkan/rendermodes/compute.cpp

@@ -0,0 +1,211 @@
+#include <uf/ext/vulkan/vulkan.h>
+#include <uf/ext/vulkan/rendermodes/compute.h>
+#include <uf/ext/vulkan/rendermodes/deferred.h>
+#include <uf/ext/vulkan/rendermodes/rendertarget.h>
+#include <uf/ext/vulkan/initializers.h>
+#include <uf/ext/openvr/openvr.h>
+#include <uf/utils/window/window.h>
+#include <uf/utils/graphic/graphic.h>
+#include <uf/ext/vulkan/graphic.h>
+#include <uf/engine/scene/scene.h>
+#include <uf/utils/camera/camera.h>
+#include <uf/utils/math/transform.h>
+
+#include <uf/ext/vulkan/graphic.h>
+
+std::string ext::vulkan::ComputeRenderMode::getType() const {
+	return "Compute";
+}
+
+void ext::vulkan::ComputeRenderMode::initialize( Device& device ) {
+	ext::vulkan::RenderMode::initialize( device );
+
+//	this->width = 3840;
+//	this->height = 2160;
+
+	{
+		auto width = this->width > 0 ? this->width : ext::vulkan::width;
+		auto height = this->height > 0 ? this->height : ext::vulkan::height;
+
+		compute.device = &device;
+		compute.material.device = &device;
+		compute.descriptor.renderMode = this->name;
+		compute.material.initializeShaders({
+			{"./data/shaders/raytracing.comp.spv", VK_SHADER_STAGE_COMPUTE_BIT},
+		});
+
+		for ( size_t i = 0; i < (ext::openvr::context ? 2 : 1); ++i ) {
+			Texture2D& texture = compute.material.textures.emplace_back();
+			texture.asRenderTarget( device, width, height );
+		}
+
+		{
+			auto& scene = uf::scene::getCurrentScene();
+			auto& metadata = scene.getComponent<uf::Serializer>();
+
+			auto& shader = compute.material.shaders.front();
+			struct SpecializationConstant {
+				int32_t eyes = 2;
+				int32_t maxLights = 16;
+			};
+			auto& specializationConstants = shader.specializationConstants.get<SpecializationConstant>();
+			specializationConstants.maxLights = metadata["system"]["config"]["engine"]["scenes"]["max lights"].asUInt64();
+			specializationConstants.eyes = ext::openvr::context ? 2 : 1;
+		}
+
+		// update buffers
+		if ( !compute.buffers.empty() ) {
+			auto& pipeline = compute.getPipeline();
+			pipeline.update( compute );
+		}
+	}
+	{
+		uf::BaseMesh<pod::Vertex_2F2F, uint32_t> mesh;
+		mesh.vertices = {
+			{ {-1.0f, 1.0f}, {0.0f, 1.0f}, },
+			{ {-1.0f, -1.0f}, {0.0f, 0.0f}, },
+			{ {1.0f, -1.0f}, {1.0f, 0.0f}, },
+			{ {1.0f, 1.0f}, {1.0f, 1.0f}, }
+		};
+		mesh.indices = {
+			0, 1, 2, 2, 3, 0
+		};
+		blitter.device = &device;
+		blitter.material.device = &device;
+		blitter.descriptor.subpass = 1;
+
+		blitter.descriptor.depthTest.test = false;
+		blitter.descriptor.depthTest.write = false;
+
+		blitter.initializeGeometry( mesh );
+		blitter.material.initializeShaders({
+			{"./data/shaders/display.blit.vert.spv", VK_SHADER_STAGE_VERTEX_BIT},
+			{"./data/shaders/display.blit.frag.spv", VK_SHADER_STAGE_FRAGMENT_BIT}
+		});
+		for ( auto& computeTexture : compute.material.textures ) {
+			Texture2D& texture = blitter.material.textures.emplace_back();
+			texture = computeTexture;
+			texture.device = NULL;
+		}
+		blitter.initializePipeline();
+	}
+}
+void ext::vulkan::ComputeRenderMode::render() {
+	if ( compute.buffers.empty() ) return;
+
+	// Submit compute commands
+	// Use a fence to ensure that compute command buffer has finished executing before using it again
+	VK_CHECK_RESULT(vkWaitForFences( *device, 1, &fences[currentBuffer], VK_TRUE, UINT64_MAX ));
+	VK_CHECK_RESULT(vkResetFences( *device, 1, &fences[currentBuffer] ));
+
+	VkSubmitInfo submitInfo = ext::vulkan::initializers::submitInfo();
+	submitInfo.commandBufferCount = 1;
+	submitInfo.pCommandBuffers = &commands[currentBuffer];
+
+	VK_CHECK_RESULT(vkQueueSubmit(device->queues.compute, 1, &submitInfo, fences[currentBuffer]));
+}
+void ext::vulkan::ComputeRenderMode::tick() {
+	ext::vulkan::RenderMode::tick();
+
+	if ( ext::vulkan::resized ) {
+		// auto-resize texture
+		if ( this->width == 0 && this->height == 0 ) {
+			auto width = this->width > 0 ? this->width : ext::vulkan::width;
+			auto height = this->height > 0 ? this->height : ext::vulkan::height;
+			for ( auto& texture : compute.material.textures ) {
+				texture.destroy();
+			}
+			compute.material.textures.clear();
+			for ( size_t i = 0; i < (ext::openvr::context ? 2 : 1); ++i ) {
+				Texture2D& texture = compute.material.textures.emplace_back();
+				texture.asRenderTarget( *device, width, height );
+			}
+		}
+		// update blitter descriptor set
+		if ( blitter.initialized ) {
+			blitter.material.textures.clear();
+			for ( auto& computeTexture : compute.material.textures ) {
+				Texture2D& texture = blitter.material.textures.emplace_back();
+				texture = computeTexture;
+				texture.device = NULL;
+			}
+			auto& pipeline = blitter.getPipeline();
+			pipeline.update( blitter );
+		}
+	//	if ( compute.initialized ) {
+		if ( !compute.buffers.empty() ) {
+			auto& pipeline = compute.getPipeline();
+			pipeline.update( compute );
+		}
+	}
+}
+void ext::vulkan::ComputeRenderMode::destroy() {
+	ext::vulkan::RenderMode::destroy();
+	blitter.destroy();
+	compute.destroy();
+}
+void ext::vulkan::ComputeRenderMode::pipelineBarrier( VkCommandBuffer commandBuffer, uint8_t state ) {
+	if ( compute.buffers.empty() ) return;
+	
+	VkImageMemoryBarrier imageMemoryBarrier = {};
+	imageMemoryBarrier.sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER;
+	imageMemoryBarrier.subresourceRange = { VK_IMAGE_ASPECT_COLOR_BIT, 0, 1, 0, 1 };
+
+	for ( auto& texture : compute.material.textures ) {
+		VkPipelineStageFlags srcStageMask, dstStageMask;
+		imageMemoryBarrier.image = texture.image;
+		imageMemoryBarrier.oldLayout = texture.descriptor.imageLayout;
+		imageMemoryBarrier.newLayout = texture.descriptor.imageLayout;
+	
+		switch ( state ) {
+			case 0: {
+				imageMemoryBarrier.srcAccessMask = VK_ACCESS_SHADER_WRITE_BIT;
+				imageMemoryBarrier.dstAccessMask = VK_ACCESS_MEMORY_READ_BIT | VK_ACCESS_SHADER_READ_BIT;
+				imageMemoryBarrier.newLayout = VK_IMAGE_LAYOUT_GENERAL;
+				srcStageMask = VK_PIPELINE_STAGE_COMPUTE_SHADER_BIT;
+				dstStageMask = VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT;
+			} break;
+			case 1: {
+				imageMemoryBarrier.srcAccessMask = VK_ACCESS_MEMORY_READ_BIT | VK_ACCESS_SHADER_READ_BIT;
+				imageMemoryBarrier.dstAccessMask = VK_ACCESS_SHADER_WRITE_BIT;
+				imageMemoryBarrier.newLayout = VK_IMAGE_LAYOUT_GENERAL;
+				srcStageMask = VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT;
+				dstStageMask = VK_PIPELINE_STAGE_COMPUTE_SHADER_BIT;
+			} break;
+			// ensure 
+			default: {
+				imageMemoryBarrier.srcAccessMask = VK_ACCESS_SHADER_WRITE_BIT;
+				imageMemoryBarrier.dstAccessMask = VK_ACCESS_SHADER_READ_BIT;
+				srcStageMask = VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT;
+				dstStageMask = VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT;
+			}
+		}
+		
+		vkCmdPipelineBarrier( commandBuffer,
+			srcStageMask, dstStageMask,
+			VK_FLAGS_NONE,
+			0, NULL,
+			0, NULL,
+			1, &imageMemoryBarrier
+		);
+	
+		texture.descriptor.imageLayout = imageMemoryBarrier.newLayout;
+	}
+}
+void ext::vulkan::ComputeRenderMode::createCommandBuffers( ) {
+	this->synchronize();
+
+	float width = this->width > 0 ? this->width : ext::vulkan::width;
+	float height = this->height > 0 ? this->height : ext::vulkan::height;
+
+	if ( compute.buffers.empty() ) return;
+
+	VkCommandBufferBeginInfo cmdBufInfo = ext::vulkan::initializers::commandBufferBeginInfo();
+	auto& pipeline = compute.getPipeline();
+	for (size_t i = 0; i < commands.size(); ++i) {
+		VK_CHECK_RESULT(vkBeginCommandBuffer(commands[i], &cmdBufInfo));
+			pipeline.record(compute, commands[i]);
+			vkCmdDispatch(commands[i], width / dispatchSize.x, height / dispatchSize.y, 1);
+		VK_CHECK_RESULT(vkEndCommandBuffer(commands[i]));
+	}
+}

engine/src/ext/vulkan/rendermodes/deferred.cpp

@@ -100,6 +100,17 @@ void ext::vulkan::DeferredRenderMode::initialize( Device& device ) {
 			{"./data/shaders/display.subpass.vert.spv", VK_SHADER_STAGE_VERTEX_BIT},
 			{"./data/shaders/display.subpass.frag.spv", VK_SHADER_STAGE_FRAGMENT_BIT}
 		});
+		{
+			auto& scene = uf::scene::getCurrentScene();
+			auto& metadata = scene.getComponent<uf::Serializer>();
+
+			auto& shader = blitter.material.shaders.back();
+			struct SpecializationConstant {
+				int32_t maxLights = 16;
+			};
+			auto& specializationConstants = shader.specializationConstants.get<SpecializationConstant>();
+			specializationConstants.maxLights = metadata["system"]["config"]["engine"]["scenes"]["max lights"].asUInt64();
+		}
 		blitter.initializePipeline();
 	}
 }
@@ -128,7 +139,7 @@ void ext::vulkan::DeferredRenderMode::createCommandBuffers( const std::vector<ex
 	VkCommandBufferBeginInfo cmdBufInfo = {};
 	cmdBufInfo.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO;
 	cmdBufInfo.pNext = nullptr;
-
+/*
 	VkImageMemoryBarrier imageMemoryBarrier = { VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER };
 	imageMemoryBarrier.srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED; // ext::vulkan::device.queueFamilyIndices.graphics; //VK_QUEUE_FAMILY_IGNORED
 	imageMemoryBarrier.dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED; // ext::vulkan::device.queueFamilyIndices.graphics; //VK_QUEUE_FAMILY_IGNORED
@@ -137,8 +148,9 @@ void ext::vulkan::DeferredRenderMode::createCommandBuffers( const std::vector<ex
 	imageMemoryBarrier.subresourceRange.baseArrayLayer = 0;
 	imageMemoryBarrier.subresourceRange.layerCount = 1;
 	imageMemoryBarrier.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
+*/
 
-	std::vector<RenderMode*> layers = ext::vulkan::getRenderModes("RenderTarget", false);
+	std::vector<RenderMode*> layers = ext::vulkan::getRenderModes(std::vector<std::string>{"RenderTarget", "Compute"}, false);
 
 	for (size_t i = 0; i < commands.size(); ++i) {
 		VK_CHECK_RESULT(vkBeginCommandBuffer(commands[i], &cmdBufInfo));
@@ -182,8 +194,9 @@ void ext::vulkan::DeferredRenderMode::createCommandBuffers( const std::vector<ex
 			scissor.offset.y = 0;
 
 			// transition layers for read
-		
 			for ( auto layer : layers ) {
+				layer->pipelineBarrier( commands[i], 0 );
+			/*
 				if ( layer->getName() == "" ) continue;
 				RenderTarget& renderTarget = layer->renderTarget;
 				for ( auto& attachment : renderTarget.attachments ) {
@@ -197,6 +210,7 @@ void ext::vulkan::DeferredRenderMode::createCommandBuffers( const std::vector<ex
 					vkCmdPipelineBarrier( commands[i], VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT , VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT, 0, 0, NULL, 0, NULL, 1, &imageMemoryBarrier );
 					attachment.layout = imageMemoryBarrier.newLayout;
 				}
+			*/
 			}
 		
 			vkCmdBeginRenderPass(commands[i], &renderPassBeginInfo, VK_SUBPASS_CONTENTS_INLINE);
@@ -234,6 +248,8 @@ void ext::vulkan::DeferredRenderMode::createCommandBuffers( const std::vector<ex
 			vkCmdEndRenderPass(commands[i]);
 
 			for ( auto layer : layers ) {
+				layer->pipelineBarrier( commands[i], 1 );
+			/*
 				if ( layer->getName() == "" ) continue;
 				RenderTarget& renderTarget = layer->renderTarget;
 				for ( auto& attachment : renderTarget.attachments ) {
@@ -247,6 +263,7 @@ void ext::vulkan::DeferredRenderMode::createCommandBuffers( const std::vector<ex
 					vkCmdPipelineBarrier( commands[i], VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT, VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT , 0, 0, NULL, 0, NULL, 1, &imageMemoryBarrier );
 					attachment.layout = imageMemoryBarrier.newLayout;
 				}
+			*/
 			}
 		}
 

engine/src/ext/vulkan/rendermodes/rendertarget.cpp

@@ -93,6 +93,7 @@ void ext::vulkan::RenderTargetRenderMode::initialize( Device& device ) {
 			{"./data/shaders/display.renderTarget.vert.spv", VK_SHADER_STAGE_VERTEX_BIT},
 			{"./data/shaders/display.renderTarget.frag.spv", VK_SHADER_STAGE_FRAGMENT_BIT}
 		});
+		
 		for ( auto& attachment : renderTarget.attachments ) {
 			if ( !(attachment.usage & VK_IMAGE_USAGE_SAMPLED_BIT) ) continue;
 
@@ -144,7 +145,7 @@ void ext::vulkan::RenderTargetRenderMode::render() {
 	submitInfo.pCommandBuffers = &commands[currentBuffer];		// Command buffers(s) to execute in this batch (submission)
 	submitInfo.commandBufferCount = 1;
 
-	VK_CHECK_RESULT(vkQueueSubmit(device->graphicsQueue, 1, &submitInfo, fences[currentBuffer]));
+	VK_CHECK_RESULT(vkQueueSubmit(device->queues.graphics, 1, &submitInfo, fences[currentBuffer]));
 /*
 	VkSemaphoreWaitInfo waitInfo = {};
 	waitInfo.sType = VK_STRUCTURE_TYPE_SEMAPHORE_WAIT_INFO;
@@ -155,6 +156,60 @@ void ext::vulkan::RenderTargetRenderMode::render() {
 	VK_CHECK_RESULT(vkWaitSemaphores( *device, &waitInfo, UINT64_MAX ));
 */
 }
+void ext::vulkan::RenderTargetRenderMode::pipelineBarrier( VkCommandBuffer commandBuffer, uint8_t state ) {
+	VkImageMemoryBarrier imageMemoryBarrier = { VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER };
+	imageMemoryBarrier.srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED; // ext::vulkan::device.queueFamilyIndices.graphics; //VK_QUEUE_FAMILY_IGNORED
+	imageMemoryBarrier.dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED; // ext::vulkan::device.queueFamilyIndices.graphics; //VK_QUEUE_FAMILY_IGNORED
+	imageMemoryBarrier.subresourceRange.baseMipLevel = 0;
+	imageMemoryBarrier.subresourceRange.levelCount = 1;
+	imageMemoryBarrier.subresourceRange.baseArrayLayer = 0;
+	imageMemoryBarrier.subresourceRange.layerCount = 1;
+	imageMemoryBarrier.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
+
+	for ( auto& attachment : renderTarget.attachments ) {
+		if ( !(attachment.usage & VK_IMAGE_USAGE_SAMPLED_BIT) ) continue;
+		if (  (attachment.usage & VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT) ) continue;
+		
+		VkPipelineStageFlags srcStageMask, dstStageMask;
+		imageMemoryBarrier.image = attachment.image;
+		imageMemoryBarrier.oldLayout = attachment.layout;
+		imageMemoryBarrier.newLayout = attachment.layout;
+	
+		switch ( state ) {
+			case 0: {
+				imageMemoryBarrier.srcAccessMask = VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT;
+				imageMemoryBarrier.dstAccessMask = VK_ACCESS_MEMORY_READ_BIT | VK_ACCESS_SHADER_READ_BIT;
+				imageMemoryBarrier.newLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
+				srcStageMask = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
+				dstStageMask = VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT;
+			} break;
+			case 1: {
+				imageMemoryBarrier.srcAccessMask = VK_ACCESS_MEMORY_READ_BIT | VK_ACCESS_SHADER_READ_BIT;
+				imageMemoryBarrier.dstAccessMask = VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT;
+				imageMemoryBarrier.newLayout = attachment.usage & VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT ? VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL : VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
+				srcStageMask = VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT;
+				dstStageMask = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
+			} break;
+			// ensure 
+			default: {
+				imageMemoryBarrier.srcAccessMask = VK_ACCESS_SHADER_WRITE_BIT;
+				imageMemoryBarrier.dstAccessMask = VK_ACCESS_SHADER_READ_BIT;
+				srcStageMask = VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT;
+				dstStageMask = VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT;
+			}
+		}
+		
+		vkCmdPipelineBarrier( commandBuffer,
+			srcStageMask, dstStageMask,
+			VK_FLAGS_NONE,
+			0, NULL,
+			0, NULL,
+			1, &imageMemoryBarrier
+		);
+
+		attachment.layout = imageMemoryBarrier.newLayout;
+	}
+}
 void ext::vulkan::RenderTargetRenderMode::createCommandBuffers( const std::vector<ext::vulkan::Graphic*>& graphics ) {
 	// destroy if exists
 	float width = this->width > 0 ? this->width : ext::vulkan::width;

engine/src/ext/vulkan/rendermodes/stereoscopic_deferred.cpp

@@ -116,6 +116,17 @@ void ext::vulkan::StereoscopicDeferredRenderMode::initialize( Device& device ) {
 				{"./data/shaders/display.subpass.vert.spv", VK_SHADER_STAGE_VERTEX_BIT},
 				{"./data/shaders/display.subpass.frag.spv", VK_SHADER_STAGE_FRAGMENT_BIT}
 			});
+			{
+				auto& scene = uf::scene::getCurrentScene();
+				auto& metadata = scene.getComponent<uf::Serializer>();
+
+				auto& shader = blitter.material.shaders.back();
+				struct SpecializationConstant {
+					int32_t maxLights = 16;
+				};
+				auto& specializationConstants = shader.specializationConstants.get<SpecializationConstant>();
+				specializationConstants.maxLights = metadata["system"]["config"]["engine"]["scenes"]["max lights"].asUInt64();
+			}
 			blitter.initializePipeline();
 		}
 	}
@@ -169,7 +180,7 @@ void ext::vulkan::StereoscopicDeferredRenderMode::createCommandBuffers( const st
 	imageMemoryBarrier.subresourceRange.layerCount = 1;
 	imageMemoryBarrier.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
 		
-	std::vector<RenderMode*> layers = ext::vulkan::getRenderModes("RenderTarget", false);
+	std::vector<RenderMode*> layers = ext::vulkan::getRenderModes(std::vector<std::string>{"RenderTarget", "Compute"}, false);
 
 	for (size_t i = 0; i < commands.size(); ++i) {
 		VK_CHECK_RESULT(vkBeginCommandBuffer(commands[i], &cmdBufInfo));
@@ -225,6 +236,8 @@ void ext::vulkan::StereoscopicDeferredRenderMode::createCommandBuffers( const st
 
 				// transition layers for read
 				for ( auto layer : layers ) {
+					layer->pipelineBarrier( commands[i], 0 );
+				/*
 					if ( layer->getName() == "" ) continue;
 					RenderTarget& renderTarget = layer->renderTarget;
 					for ( auto& attachment : renderTarget.attachments ) {
@@ -238,6 +251,7 @@ void ext::vulkan::StereoscopicDeferredRenderMode::createCommandBuffers( const st
 						vkCmdPipelineBarrier( commands[i], VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT , VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT, 0, 0, NULL, 0, NULL, 1, &imageMemoryBarrier );
 						attachment.layout = imageMemoryBarrier.newLayout;
 					}
+				*/
 				}
 			
 				vkCmdBeginRenderPass(commands[i], &renderPassBeginInfo, VK_SUBPASS_CONTENTS_INLINE);
@@ -275,6 +289,8 @@ void ext::vulkan::StereoscopicDeferredRenderMode::createCommandBuffers( const st
 				vkCmdEndRenderPass(commands[i]);
 
 				for ( auto layer : layers ) {
+					layer->pipelineBarrier( commands[i], 1 );
+				/*
 					if ( layer->getName() == "" ) continue;
 					RenderTarget& renderTarget = layer->renderTarget;
 					for ( auto& attachment : renderTarget.attachments ) {
@@ -288,6 +304,7 @@ void ext::vulkan::StereoscopicDeferredRenderMode::createCommandBuffers( const st
 						vkCmdPipelineBarrier( commands[i], VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT, VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT , 0, 0, NULL, 0, NULL, 1, &imageMemoryBarrier );
 						attachment.layout = imageMemoryBarrier.newLayout;
 					}
+				*/
 				}
 			}
 			// Blit eye to swapchain

engine/src/ext/vulkan/texture.cpp

@@ -198,12 +198,11 @@ void ext::vulkan::Texture2D::loadFromFile(
 	VkImageLayout imageLayout, 
 	bool forceLinear
 ) {
-	return loadFromFile( filename, ext::vulkan::device, ext::vulkan::device.graphicsQueue, format, imageUsageFlags, imageLayout, forceLinear );
+	return loadFromFile( filename, ext::vulkan::device, format, imageUsageFlags, imageLayout, forceLinear );
 }
 void ext::vulkan::Texture2D::loadFromFile(
 	std::string filename, 
 	Device& device,
-	VkQueue copyQueue,
 	VkFormat format,
 	VkImageUsageFlags imageUsageFlags,
 	VkImageLayout imageLayout, 
@@ -274,7 +273,6 @@ void ext::vulkan::Texture2D::loadFromFile(
 		image.getDimensions()[0],
 		image.getDimensions()[1],
 		device,
-		copyQueue,
 		imageUsageFlags,
 		imageLayout
 	);
@@ -286,12 +284,11 @@ void ext::vulkan::Texture2D::loadFromImage(
 	VkImageLayout imageLayout, 
 	bool forceLinear
 ) {
-	return loadFromImage( image, ext::vulkan::device, ext::vulkan::device.graphicsQueue, format, imageUsageFlags, imageLayout, forceLinear );
+	return loadFromImage( image, ext::vulkan::device, format, imageUsageFlags, imageLayout, forceLinear );
 }
 void ext::vulkan::Texture2D::loadFromImage(
 	uf::Image& image, 
 	Device& device,
-	VkQueue copyQueue,
 	VkFormat format,
 	VkImageUsageFlags imageUsageFlags,
 	VkImageLayout imageLayout, 
@@ -346,7 +343,6 @@ void ext::vulkan::Texture2D::loadFromImage(
 		image.getDimensions()[0],
 		image.getDimensions()[1],
 		device,
-		copyQueue,
 		imageUsageFlags,
 		imageLayout
 	);
@@ -358,14 +354,12 @@ void ext::vulkan::Texture2D::fromBuffers(
 	uint32_t texWidth,
 	uint32_t texHeight,
 	Device& device,
-	VkQueue copyQueue,
 	VkImageUsageFlags imageUsageFlags,
 	VkImageLayout imageLayout
 ) {
 	this->initialize(device, texWidth, texHeight);
 	this->mips = 1;
 
-
 	// Use a separate command buffer for texture loading
 	VkCommandBuffer copyCmd = device.createCommandBuffer(VK_COMMAND_BUFFER_LEVEL_PRIMARY, true);
 
@@ -455,7 +449,7 @@ void ext::vulkan::Texture2D::fromBuffers(
 		imageLayout,
 		subresourceRange
 	);
-	device.flushCommandBuffer(copyCmd, copyQueue);
+	device.flushCommandBuffer(copyCmd);
 	// Clean up staging resources
 /*
 	vkFreeMemory(device.logicalDevice, staging.memory, nullptr);
@@ -481,7 +475,7 @@ void ext::vulkan::Texture2D::fromBuffers(
 	this->updateDescriptors();
 }
 
-void ext::vulkan::Texture2D::asRenderTarget( Device& device, uint32_t width, uint32_t height, VkQueue copyQueue, VkFormat format ) {
+void ext::vulkan::Texture2D::asRenderTarget( Device& device, uint32_t width, uint32_t height, VkFormat format ) {
 	// Prepare blit target texture
 	this->initialize( device, width, height );
 	
@@ -530,7 +524,7 @@ void ext::vulkan::Texture2D::asRenderTarget( Device& device, uint32_t width, uin
 		imageLayout
 	);
 
-	device.flushCommandBuffer(layoutCmd, copyQueue, true);
+	device.flushCommandBuffer(layoutCmd, true);
 
 	// Create sampler
 	sampler.initialize( device );

engine/src/ext/vulkan/vulkan.cpp

@@ -14,6 +14,8 @@ uint32_t ext::vulkan::height = 720;
 bool ext::vulkan::validation = true;
 std::vector<std::string> ext::vulkan::validationFilters;
 std::vector<std::string> ext::vulkan::requestedDeviceFeatures;
+std::vector<std::string> ext::vulkan::requestedDeviceExtensions;
+std::vector<std::string> ext::vulkan::requestedInstanceExtensions;
 ext::vulkan::Device ext::vulkan::device;
 ext::vulkan::Allocator ext::vulkan::allocator;
 ext::vulkan::Swapchain ext::vulkan::swapchain;
@@ -159,17 +161,15 @@ void ext::vulkan::alignedFree(void* data) {
 #endif
 }
 
-namespace {
-	bool hasRenderMode( const std::string& name, bool isName ) {
-		for ( auto& renderMode: ext::vulkan::renderModes ) {
-			if ( isName ) {
-				if ( renderMode->getName() == name ) return true;
-			} else {
-				if ( renderMode->getType() == name ) return true;
-			}
+bool ext::vulkan::hasRenderMode( const std::string& name, bool isName ) {
+	for ( auto& renderMode: ext::vulkan::renderModes ) {
+		if ( isName ) {
+			if ( renderMode->getName() == name ) return true;
+		} else {
+			if ( renderMode->getType() == name ) return true;
 		}
-		return false;
 	}
+	return false;
 }
 
 ext::vulkan::RenderMode& ext::vulkan::addRenderMode( ext::vulkan::RenderMode* mode, const std::string& name ) {
@@ -180,7 +180,7 @@ ext::vulkan::RenderMode& ext::vulkan::addRenderMode( ext::vulkan::RenderMode* mo
 	return *mode;
 }
 ext::vulkan::RenderMode& ext::vulkan::getRenderMode( const std::string& name, bool isName ) {
-	RenderMode* target = renderModes[renderModes.size()-1];
+	RenderMode* target = renderModes[0];
 	for ( auto& renderMode: renderModes ) {
 		if ( isName ) {
 			if ( renderMode->getName() == "" )  target = renderMode;
@@ -199,9 +199,12 @@ ext::vulkan::RenderMode& ext::vulkan::getRenderMode( const std::string& name, bo
 	return *target;
 }
 std::vector<ext::vulkan::RenderMode*> ext::vulkan::getRenderModes( const std::string& name, bool isName ) {
+	return ext::vulkan::getRenderModes({name}, isName);
+}
+std::vector<ext::vulkan::RenderMode*> ext::vulkan::getRenderModes( const std::vector<std::string>& names, bool isName ) {
 	std::vector<RenderMode*> targets;
 	for ( auto& renderMode: renderModes ) {
-		if ( ( isName && renderMode->getName() == name ) || renderMode->getType() == name ) {
+		if ( ( isName && std::find(names.begin(), names.end(), renderMode->getName()) != names.end() ) || std::find(names.begin(), names.end(), renderMode->getType()) != names.end() ) {
 			targets.push_back(renderMode);
 //			std::cout << "Requestings RenderMode `" << name << "`, got `" << renderMode->getName() << "` (" << renderMode->getType() << ")" << std::endl;
 		}
@@ -233,7 +236,7 @@ void ext::vulkan::initialize( uint8_t stage ) {
 				};
 				Texture2D::empty.sampler.descriptor.filter.min = VK_FILTER_NEAREST;
 				Texture2D::empty.sampler.descriptor.filter.mag = VK_FILTER_NEAREST;
-				Texture2D::empty.fromBuffers( (void*) &pixels[0], pixels.size(), VK_FORMAT_R8G8B8A8_UNORM, 2, 2, ext::vulkan::device, ext::vulkan::device.graphicsQueue, VK_IMAGE_USAGE_SAMPLED_BIT );
+				Texture2D::empty.fromBuffers( (void*) &pixels[0], pixels.size(), VK_FORMAT_R8G8B8A8_UNORM, 2, 2, ext::vulkan::device, VK_IMAGE_USAGE_SAMPLED_BIT );
 			}
 			for ( auto& renderMode : renderModes ) {
 				if ( !renderMode ) continue;
@@ -303,6 +306,11 @@ void ext::vulkan::tick() {
 }
 void ext::vulkan::render() {
 //	ext::vulkan::mutex.lock();
+	if ( hasRenderMode("Gui", true) ) {
+		RenderMode& primary = getRenderMode("Gui", true);
+		auto it = std::find( renderModes.begin(), renderModes.end(), &primary );
+		if ( it + 1 != renderModes.end() ) std::rotate( it, it + 1, renderModes.end() );
+	}
 	if ( hasRenderMode("", true) ) {
 		RenderMode& primary = getRenderMode("", true);
 		auto it = std::find( renderModes.begin(), renderModes.end(), &primary );

ext/main.cpp

@@ -37,6 +37,7 @@
 #include <uf/engine/asset/asset.h>
 
 #include <uf/ext/vulkan/rendermodes/deferred.h>
+#include <uf/ext/vulkan/rendermodes/compute.h>
 #include <uf/ext/vulkan/rendermodes/stereoscopic_deferred.h>
 #include <uf/ext/vulkan/rendermodes/rendertarget.h>
 #include <uf/ext/discord/discord.h>
@@ -107,26 +108,35 @@ void EXT_API ext::initialize() {
 		for ( int i = 0; i < ::config["engine"]["ext"]["vulkan"]["validation"]["filters"].size(); ++i ) {
 			ext::vulkan::validationFilters.push_back( ::config["engine"]["ext"]["vulkan"]["validation"]["filters"][i].asString() );
 		}
+		for ( int i = 0; i < ::config["engine"]["ext"]["vulkan"]["extensions"]["device"].size(); ++i ) {
+			ext::vulkan::requestedDeviceExtensions.push_back( ::config["engine"]["ext"]["vulkan"]["extensions"]["device"][i].asString() );
+		}
+		for ( int i = 0; i < ::config["engine"]["ext"]["vulkan"]["extensions"]["instance"].size(); ++i ) {
+			ext::vulkan::requestedInstanceExtensions.push_back( ::config["engine"]["ext"]["vulkan"]["extensions"]["instance"][i].asString() );
+		}
 		for ( int i = 0; i < ::config["engine"]["ext"]["vulkan"]["features"].size(); ++i ) {
 			ext::vulkan::requestedDeviceFeatures.push_back( ::config["engine"]["ext"]["vulkan"]["features"][i].asString() );
 		}
-		//
-		// ext::vulkan::DeferredRenderingGraphic::maxLights = ::config["engine"]["scenes"]["max lights"].asUInt();
-		//
 		ext::openvr::enabled = ::config["engine"]["ext"]["vr"]["enable"].asBool();
 		ext::openvr::swapEyes = ::config["engine"]["ext"]["vr"]["swap eyes"].asBool();
-	//	ext::openvr::dominantEye = ::config["engine"]["ext"]["vr"]["dominatEye"].asString() == "left" ? 0 : 1;
-		if ( ::config["engine"]["ext"]["vr"]["dominatEye"].asString() == "left" ) ext::openvr::dominantEye = 0;
-		if ( ::config["engine"]["ext"]["vr"]["dominatEye"].asString() == "right" ) ext::openvr::dominantEye = 1;
+		if ( ::config["engine"]["ext"]["vr"]["dominatEye"].isNumeric() )
+			ext::openvr::dominantEye = ::config["engine"]["ext"]["vr"]["dominatEye"].asUInt64();
+		else if ( ::config["engine"]["ext"]["vr"]["dominatEye"].asString() == "left" ) ext::openvr::dominantEye = 0;
+		else if ( ::config["engine"]["ext"]["vr"]["dominatEye"].asString() == "right" ) ext::openvr::dominantEye = 1;
 		ext::openvr::driver.manifest = ::config["engine"]["ext"]["vr"]["manifest"].asString();
 		if ( ext::openvr::enabled ) {
 			::config["engine"]["render modes"]["stereo deferred"] = true;
-		//	ext::vulkan::validation = false;
-		//	if ( ::config["engine"]["ext"]["vr"]["invert winding order"].asBool() )
-		//		ext::vulkan::GraphicOld::DEFAULT_WINDING_ORDER = VK_FRONT_FACE_COUNTER_CLOCKWISE;
 		}
 	}
 
+
+	/* Create initial scene (kludge) */ {
+		uf::Scene* scene = new uf::Scene;
+		uf::scene::scenes.push_back(scene);
+		auto& metadata = scene->getComponent<uf::Serializer>();
+		metadata["system"]["config"] = ::config;
+	}
+
 	/* Initialize Vulkan */ {
 		// ext::vulkan::width = ::config["window"]["size"]["x"].asInt();
 		// ext::vulkan::height = ::config["window"]["size"]["y"].asInt();
@@ -137,11 +147,15 @@ void EXT_API ext::initialize() {
 			ext::vulkan::addRenderMode( renderMode, "Gui" );
 			renderMode->blitter.descriptor.subpass = 1;
 		}
+		
 		if ( ::config["engine"]["render modes"]["stereo deferred"].asBool() )
 			ext::vulkan::addRenderMode( new ext::vulkan::StereoscopicDeferredRenderMode, "" );
 		else if ( ::config["engine"]["render modes"]["deferred"].asBool() )
 			ext::vulkan::addRenderMode( new ext::vulkan::DeferredRenderMode, "" );
 
+	//	if ( ::config["engine"]["render modes"]["compute"].asBool() )
+	//		ext::vulkan::addRenderMode( new ext::vulkan::ComputeRenderMode, "C:RT:0" );
+
 		if ( ext::openvr::enabled ) {
 			ext::openvr::initialize();
 		
@@ -168,19 +182,24 @@ void EXT_API ext::initialize() {
 	}
 
 	/* Initialize root scene*/ {
-		uf::scene::loadScene( ::config["engine"]["scenes"]["start"].asString() );
+		uf::scene::unloadScene();
+		auto& scene = uf::scene::loadScene( ::config["engine"]["scenes"]["start"].asString() );
+		auto& metadata = scene.getComponent<uf::Serializer>();
+		metadata["system"]["config"] = ::config;
 	}
 
 	/* Add hooks */ {
 		uf::hooks.addHook( "game:LoadScene", [&](const std::string& event)->std::string{
 			uf::Serializer json = event;
 			uf::scene::unloadScene();
-			uf::scene::loadScene( json["scene"].asString() );
+			auto& scene = uf::scene::loadScene( json["scene"].asString() );
+			auto& metadata = scene.getComponent<uf::Serializer>();
+			metadata["system"]["config"] = ::config;
 			return "true";
 		});
 
 		uf::hooks.addHook( "system:Quit", [&](const std::string& event)->std::string{
-			std::cout << event << std::endl;
+			std::cout << "system:Quit: " << event << std::endl;
 			ext::ready = false;
 			return "true";
 		});

ext/scenes/raytrace/scene.cpp

@@ -0,0 +1,320 @@
+#include "scene.h"
+
+#include <uf/utils/time/time.h>
+#include <uf/utils/io/iostream.h>
+#include <uf/utils/math/vector.h>
+#include <uf/utils/math/transform.h>
+#include <uf/utils/window/window.h>
+
+#include <uf/utils/audio/audio.h>
+#include <uf/utils/thread/thread.h>
+#include <uf/utils/camera/camera.h>
+
+#include <uf/engine/asset/asset.h>
+#include <uf/engine/asset/masterdata.h>
+
+#include <uf/ext/vulkan/vulkan.h>
+#include <uf/ext/vulkan/rendermodes/deferred.h>
+#include <uf/ext/vulkan/rendermodes/rendertarget.h>
+#include <uf/ext/vulkan/rendermodes/compute.h>
+#include <uf/ext/vulkan/rendermodes/stereoscopic_deferred.h>
+#include <uf/ext/gltf/gltf.h>
+
+#include <uf/utils/math/collision.h>
+
+#include "../../ext.h"
+#include "../../gui/gui.h"
+
+EXT_OBJECT_REGISTER_CPP(RaytracedScene)
+void ext::RaytracedScene::initialize() {
+	uf::Scene::initialize();
+	uf::Serializer& metadata = this->getComponent<uf::Serializer>();
+	uf::Asset& assetLoader = this->getComponent<uf::Asset>();
+
+	{
+		auto& renderMode = this->getComponent<ext::vulkan::ComputeRenderMode>();
+		std::string name = "C:RT:" + std::to_string((int) this->getUid());
+		ext::vulkan::addRenderMode( &renderMode, name );
+		if ( metadata["light"]["shadows"]["resolution"].isArray() ) {
+			renderMode.width = metadata["light"]["shadows"]["resolution"][0].asUInt64();
+			renderMode.height = metadata["light"]["shadows"]["resolution"][1].asUInt64();
+		} else {
+			renderMode.width = metadata["light"]["shadows"]["resolution"].asUInt64();
+			renderMode.height = metadata["light"]["shadows"]["resolution"].asUInt64();
+		}
+		{
+			struct Shape {
+				pod::Vector4f values;
+				pod::Vector3f diffuse;
+				float specular;
+				uint32_t id;
+				pod::Vector3ui _pad;
+			};
+
+			std::vector<Shape> shapes;
+			{
+				shapes.push_back( {{1.75f, -0.5f, 0.0f, 1.0f },  { 0.0f, 1.0f,   0.0f}, 32.0f, 1} );
+				shapes.push_back( {{0.0f, 1.0f, -0.5f, 1.0f },  {0.65f, 0.77f, 0.97f}, 32.0f, 1} );
+				shapes.push_back( {{-1.75f, -0.75f, -0.5f, 1.25f }, { 0.9f, 0.76f, 0.46f}, 32.0f, 1} );
+			}
+			{
+				float roomDim = 12.0f;
+				shapes.push_back( {{0.0f, 1.0f, 0.0f, roomDim}, {1.0f, 1.0f, 1.0f}, 32.0f, 2} );
+				shapes.push_back( {{0.0f, -1.0f, 0.0f, roomDim}, {1.0f, 1.0f, 1.0f}, 32.0f, 2} );
+				shapes.push_back( {{0.0f, 0.0f, 1.0f, roomDim}, {1.0f, 1.0f, 1.0f}, 32.0f, 2} );
+				shapes.push_back( {{0.0f, 0.0f, -1.0f, roomDim}, {0.0f, 0.0f, 0.0f}, 32.0f, 2} );
+				shapes.push_back( {{-1.0f, 0.0f, 0.0f, roomDim}, {1.0f, 0.0f, 0.0f}, 32.0f, 2} );
+				shapes.push_back( {{1.0f, 0.0f, 0.0f, roomDim}, {0.0f, 1.0f, 0.0f}, 32.0f, 2} );
+			}
+			renderMode.compute.device = &ext::vulkan::device;
+			renderMode.compute.initializeBuffer(
+				(void*) shapes.data(),
+				shapes.size() * sizeof(Shape),
+				VK_BUFFER_USAGE_VERTEX_BUFFER_BIT | VK_BUFFER_USAGE_STORAGE_BUFFER_BIT | VK_BUFFER_USAGE_TRANSFER_DST_BIT,
+				VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT,
+				true
+			);
+		}
+	}
+
+	this->addHook( "system:Quit.%UID%", [&](const std::string& event)->std::string{
+		std::cout << event << std::endl;
+		ext::ready = false;
+		return "true";
+	});
+	{
+		static uf::Timer<long long> timer(false);
+		if ( !timer.running() ) timer.start();
+		this->addHook( "world:Entity.LoadAsset", [&](const std::string& event)->std::string{
+			uf::Serializer json = event;
+
+			std::string asset = json["asset"].asString();
+			std::string uid = json["uid"].asString();
+
+			assetLoader.load(asset, "asset:Load." + uid);
+
+			return "true";
+		});
+	}
+	{
+		static uf::Timer<long long> timer(false);
+		if ( !timer.running() ) timer.start();
+		this->addHook( "menu:Pause", [&](const std::string& event)->std::string{
+			if ( timer.elapsed().asDouble() < 1 ) return "false";
+			timer.reset();
+
+			uf::Serializer json = event;
+			ext::Gui* manager = (ext::Gui*) this->findByName("Gui Manager");
+			if ( !manager ) return "false";
+			uf::Serializer payload;
+			ext::Gui* gui = (ext::Gui*) manager->findByUid( (payload["uid"] = manager->loadChild("/scenes/world/gui/pause/menu.json", false)).asUInt64() );
+			uf::Serializer& metadata = gui->getComponent<uf::Serializer>();
+			metadata["menu"] = json["menu"];
+			gui->initialize();
+			return payload;
+		});
+	}
+
+	/* store viewport size */ {
+		metadata["window"]["size"]["x"] = ext::vulkan::width;
+		metadata["window"]["size"]["y"] = ext::vulkan::height;
+		
+		this->addHook( "window:Resized", [&](const std::string& event)->std::string{
+			uf::Serializer json = event;
+
+			pod::Vector2ui size; {
+				size.x = json["window"]["size"]["x"].asUInt64();
+				size.y = json["window"]["size"]["y"].asUInt64();
+			}
+
+			metadata["window"] = json["window"];
+
+			return "true";
+		});
+	}
+
+	// lock control
+	{
+		uf::Serializer payload;
+		payload["state"] = true;
+		uf::hooks.call("window:Mouse.CursorVisibility", payload);
+		uf::hooks.call("window:Mouse.Lock");
+	}
+}
+
+void ext::RaytracedScene::render() {
+	uf::Scene::render();
+}
+void ext::RaytracedScene::destroy() {
+	if ( this->hasComponent<ext::vulkan::ComputeRenderMode>() ) {
+		auto& renderMode = this->getComponent<ext::vulkan::ComputeRenderMode>();
+		ext::vulkan::removeRenderMode( &renderMode, false );
+	}
+	uf::Scene::destroy();
+}
+void ext::RaytracedScene::tick() {
+	uf::Scene::tick();
+
+	uf::Serializer& metadata = this->getComponent<uf::Serializer>();
+	uf::Asset& assetLoader = this->getComponent<uf::Asset>();
+#if 1
+	if ( this->hasComponent<ext::vulkan::ComputeRenderMode>() ) {
+		auto& renderMode = this->getComponent<ext::vulkan::ComputeRenderMode>();
+		/* Add lights to scene */ if ( renderMode.compute.initialized ) {
+			struct UniformDescriptor {
+				alignas(16) pod::Matrix4f matrices[2];
+				alignas(16) pod::Vector4f ambient;
+				struct Light {
+					alignas(16) pod::Vector4f position;
+					alignas(16) pod::Vector4f color;
+					alignas(8) pod::Vector2i type;
+					alignas(16) pod::Matrix4f view;
+					alignas(16) pod::Matrix4f projection;
+				} lights;
+			};
+			
+			struct SpecializationConstant {
+				int32_t eyes = 2;
+				int32_t maxLights = 16;
+			} specializationConstants;
+			
+			auto& shader = renderMode.compute.material.shaders.front();
+			specializationConstants = shader.specializationConstants.get<SpecializationConstant>();
+
+			auto& scene = uf::scene::getCurrentScene();
+			auto& controller = *scene.getController();
+			auto& camera = controller.getComponent<uf::Camera>();
+			auto& transform = controller.getComponent<pod::Transform<>>();
+			
+			auto& userdata = shader.uniforms.front();
+			size_t uniforms_len = userdata.data().len;
+			uint8_t* uniforms_buffer = (uint8_t*) (void*) userdata;
+			UniformDescriptor* uniforms = (UniformDescriptor*) uniforms_buffer;
+			for ( size_t i = 0; i < 2; ++i ) {
+				uniforms->matrices[i] = uf::matrix::inverse( camera.getProjection(i) * camera.getView(i) );
+			}
+
+		//	uniforms->lights.position = { 0, 0, 0, 32 };
+		//	uniforms->lights.color = { 1, 1, 1, 1 };
+		
+			std::vector<uf::Entity*> entities;
+			std::function<void(uf::Entity*)> filter = [&]( uf::Entity* entity ) {
+				if ( !entity || entity->getName() != "Light" ) return;
+				entities.push_back(entity);
+			};
+			for ( uf::Scene* scene : ext::vulkan::scenes ) { if ( !scene ) continue;
+				scene->process(filter);
+			}
+			{
+				const pod::Vector3& position = controller.getComponent<pod::Transform<>>().position;
+				std::sort( entities.begin(), entities.end(), [&]( const uf::Entity* l, const uf::Entity* r ){
+					if ( !l ) return false; if ( !r ) return true;
+					if ( !l->hasComponent<pod::Transform<>>() ) return false; if ( !r->hasComponent<pod::Transform<>>() ) return true;
+					return uf::vector::magnitude( uf::vector::subtract( l->getComponent<pod::Transform<>>().position, position ) ) < uf::vector::magnitude( uf::vector::subtract( r->getComponent<pod::Transform<>>().position, position ) );
+				} );
+			}
+
+			{
+				uf::Serializer& metadata = controller.getComponent<uf::Serializer>();
+				if ( metadata["light"]["should"].asBool() ) entities.push_back(&controller);
+			}
+			UniformDescriptor::Light* lights = (UniformDescriptor::Light*) &uniforms_buffer[sizeof(UniformDescriptor) - sizeof(UniformDescriptor::Light)];
+			for ( size_t i = 0; i < specializationConstants.maxLights && i < entities.size(); ++i ) {
+				UniformDescriptor::Light& light = lights[i];
+				uf::Entity* entity = entities[i];
+
+				pod::Transform<>& transform = entity->getComponent<pod::Transform<>>();
+				uf::Serializer& metadata = entity->getComponent<uf::Serializer>();
+				uf::Camera& camera = entity->getComponent<uf::Camera>();
+				
+				light.position.x = transform.position.x;
+				light.position.y = transform.position.y;
+				light.position.z = transform.position.z;
+
+				if ( entity == &controller ) light.position.y += 2;
+
+				light.position.w = metadata["light"]["radius"].asFloat();
+
+				light.color.x = metadata["light"]["color"][0].asFloat();
+				light.color.y = metadata["light"]["color"][1].asFloat();
+				light.color.z = metadata["light"]["color"][2].asFloat();
+
+				light.color.w = metadata["light"]["power"].asFloat();
+			}
+		
+
+			shader.updateBuffer( (void*) uniforms_buffer, uniforms_len, 0, false );
+		}
+	}
+#endif
+	/* Regain control if nothing requests it */ {
+		ext::Gui* menu = (ext::Gui*) this->findByName("Gui: Menu");
+		if ( !menu ) {
+			uf::Serializer payload;
+			payload["state"] = false;
+			uf::hooks.call("window:Mouse.CursorVisibility", payload);
+			uf::hooks.call("window:Mouse.Lock");
+		}
+	}
+
+	/* Updates Sound Listener */ {
+		pod::Transform<>& transform = this->getController()->getComponent<pod::Transform<>>();
+		
+		ext::oal.listener( "POSITION", { transform.position.x, transform.position.y, transform.position.z } );
+		ext::oal.listener( "VELOCITY", { 0, 0, 0 } );
+		ext::oal.listener( "ORIENTATION", { 0, 0, 1, 1, 0, 0 } );
+	}
+
+	/* Collision */ {
+		bool local = false;
+		bool sort = false;
+		bool useStrongest = false;
+	//	pod::Thread& thread = uf::thread::fetchWorker();
+		pod::Thread& thread = uf::thread::has("Physics") ? uf::thread::get("Physics") : uf::thread::create( "Physics", true, false );
+		auto function = [&]() -> int {
+			std::vector<uf::Object*> entities;
+			std::function<void(uf::Entity*)> filter = [&]( uf::Entity* entity ) {
+				auto& metadata = entity->getComponent<uf::Serializer>();
+				if ( !metadata["system"]["physics"]["collision"].isNull() && !metadata["system"]["physics"]["collision"].asBool() ) return;
+				if ( entity->hasComponent<uf::Collider>() )
+					entities.push_back((uf::Object*) entity);
+			};
+			this->process(filter);
+			auto onCollision = []( pod::Collider::Manifold& manifold, uf::Object* a, uf::Object* b ){				
+				uf::Serializer payload;
+				payload["normal"][0] = manifold.normal.x;
+				payload["normal"][1] = manifold.normal.y;
+				payload["normal"][2] = manifold.normal.z;
+				payload["entity"] = b->getUid();
+				payload["depth"] = -manifold.depth;
+				a->callHook("world:Collision.%UID%", payload);
+				
+				payload["entity"] = a->getUid();
+				payload["depth"] = manifold.depth;
+				b->callHook("world:Collision.%UID%", payload);
+			};
+			auto testColliders = [&]( uf::Collider& colliderA, uf::Collider& colliderB, uf::Object* a, uf::Object* b, bool useStrongest ){
+				pod::Collider::Manifold strongest;
+				auto manifolds = colliderA.intersects(colliderB);
+				for ( auto manifold : manifolds ) {
+					if ( manifold.colliding && manifold.depth > 0 ) {
+						if ( !useStrongest ) onCollision(manifold, a, b);
+						else if ( strongest.depth < manifold.depth ) strongest = manifold;
+					}
+				}
+				if ( useStrongest && strongest.colliding ) onCollision(strongest, a, b);
+			};
+			// collide with others
+			for ( auto* _a : entities ) {
+				uf::Object& entityA = *_a;
+				for ( auto* _b : entities ) { if ( _a == _b ) continue;
+					uf::Object& entityB = *_b;
+					testColliders( entityA.getComponent<uf::Collider>(), entityB.getComponent<uf::Collider>(), &entityA, &entityB, useStrongest );
+				}
+			}
+		
+			return 0;
+		};
+		if ( local ) function(); else uf::thread::add( thread, function, true );
+	}
+}

ext/scenes/raytrace/scene.h

@@ -0,0 +1,16 @@
+#pragma once
+
+#include <uf/config.h>
+#include <uf/ext/ext.h>
+#include <uf/engine/object/object.h>
+#include <uf/engine/scene/scene.h>
+
+namespace ext {
+	class EXT_API RaytracedScene : public uf::Scene {
+	public:
+		virtual void initialize();
+		virtual void tick();
+		virtual void render();
+		virtual void destroy();
+	};
+}

ext/scenes/world/world.cpp

@@ -293,26 +293,6 @@ void ext::World::tick() {
 		ext::oal.listener( "VELOCITY", { 0, 0, 0 } );
 		ext::oal.listener( "ORIENTATION", { 0, 0, 1, 1, 0, 0 } );
 	}
-
-	/**/ if ( false ) {
-		uf::Serializer& metadata = this->getComponent<uf::Serializer>();
-		auto& scene = *this;
-		std::vector<ext::vulkan::Graphic*> blitters;
-		auto& renderMode = ext::vulkan::getRenderMode("", true);
-		if ( renderMode.getType() == "Deferred (Stereoscopic)" ) {
-			auto* renderModePointer = (ext::vulkan::StereoscopicDeferredRenderMode*) &renderMode;
-			blitters.push_back(&renderModePointer->blitters.left);
-			blitters.push_back(&renderModePointer->blitters.right);
-		} else if ( renderMode.getType() == "Deferred" ) {
-			auto* renderModePointer = (ext::vulkan::DeferredRenderMode*) &renderMode;
-			blitters.push_back(&renderModePointer->blitter);
-		}
-		for ( size_t _ = 0; _ < blitters.size(); ++_ ) {
-			auto& blitter = *blitters[_];
-			blitter.getPipeline().update( blitter );
-		}
-	}
-
 }
 
 void ext::World::render() {