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Fix lighting

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This commit is contained in:
Luke Benstead 2018-08-03 14:08:01 +01:00
parent 332475c340
commit 59002546e6
2 changed files with 20 additions and 7 deletions
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18
GL/lighting.c
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@ -105,8 +105,17 @@ void APIENTRY glLightfv(GLenum light, GLenum pname, const GLfloat *params) {
case GL_SPECULAR:
memcpy(LIGHTS[idx].specular, params, sizeof(GLfloat) * 4);
break;
case GL_POSITION:
case GL_POSITION: {
_matrixLoadModelView();
memcpy(LIGHTS[idx].position, params, sizeof(GLfloat) * 4);
mat_trans_single4(
LIGHTS[idx].position[0],
LIGHTS[idx].position[1],
LIGHTS[idx].position[2],
LIGHTS[idx].position[3]
);
}
break;
case GL_CONSTANT_ATTENUATION:
case GL_LINEAR_ATTENUATION:
@ -252,7 +261,12 @@ void calculateLightingContribution(const GLint light, const GLfloat* pos, const
GLfloat d;
vec3f_length(L.x, L.y, L.z, d);
vec3f_normalize(L.x, L.y, L.z);
GLfloat oneOverL = 1.0f / d;
L.x *= oneOverL;
L.y *= oneOverL;
L.z *= oneOverL;
vec3f_normalize(V.x, V.y, V.z);
GLfloat NdotL;

9
samples/lerabot01/main.c
View File

@ -245,7 +245,6 @@ void DrawTexturedQuad(int tex, float x, float y, float z)
glVertexPointer(3, GL_FLOAT, 0, vertex_data);
glDrawArrays(GL_QUADS, 0, 4);
glDisableClientState(GL_VERTEX_ARRAY);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
glDisableClientState(GL_NORMAL_ARRAY);
@ -259,11 +258,11 @@ void DrawGLScene()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // Clear The Screen And The Depth Buffer
glLoadIdentity(); // Reset The View
//glTranslatef(-5.0f, -5.0f, -10.0f);
glTranslatef(-50.0f, 0.0f, -200.0f);
GLfloat l1_pos[] = {50 + sin(delta) * 100.0f, 25.0, 1.0, 1.0};
delta+= 0.03;
glTranslatef(-50.0f, 0.0f, -100.0f);
GLfloat l1_pos[] = {50 + sin(delta) * 100.0f, 6.0, 5.0, 1.0};
delta += 0.03;
glLightfv(GL_LIGHT1, GL_POSITION, l1_pos);
//glLightfv(GL_LIGHT1, GL_SPOT_EXPONENT, 3);