diff --git a/GL/flush.c b/GL/flush.c
index ce4fce4..b567d61 100644
--- a/GL/flush.c
+++ b/GL/flush.c
@@ -55,6 +55,8 @@ static void _glInitPVR() {
 PolyList* _glActivePolyList() {
     if(_glIsBlendingEnabled()) {
         return &TR_LIST;
+    } else if(_glIsAlphaTestEnabled()) {
+        return &PT_LIST;
     } else {
         return &OP_LIST;
     }
diff --git a/GL/private.h b/GL/private.h
index e7258fe..7465bc5 100644
--- a/GL/private.h
+++ b/GL/private.h
@@ -152,6 +152,8 @@ GLboolean _glIsSharedTexturePaletteEnabled();
 void _glApplyColorTable(TexturePalette *palette);
 
 GLboolean _glIsBlendingEnabled();
+GLboolean _glIsAlphaTestEnabled();
+
 GLboolean _glIsMipmapComplete(const TextureObject* obj);
 GLubyte* _glGetMipmapLocation(TextureObject* obj, GLuint level);
 GLuint _glGetMipmapLevelCount(TextureObject* obj);
diff --git a/GL/state.c b/GL/state.c
index 879c7e0..50a5656 100644
--- a/GL/state.c
+++ b/GL/state.c
@@ -30,6 +30,9 @@ static GLboolean COLOR_MATERIAL_ENABLED = GL_FALSE;
 /* Is the shared texture palette enabled? */
 static GLboolean SHARED_PALETTE_ENABLED = GL_FALSE;
 
+static GLboolean ALPHA_TEST_ENABLED = GL_FALSE;
+
+
 GLboolean _glIsSharedTexturePaletteEnabled() {
     return SHARED_PALETTE_ENABLED;
 }
@@ -84,6 +87,10 @@ GLboolean _glIsBlendingEnabled() {
     return BLEND_ENABLED;
 }
 
+GLboolean _glIsAlphaTestEnabled() {
+    return ALPHA_TEST_ENABLED;
+}
+
 static int _calcPVRBlendFactor(GLenum factor) {
     switch(factor) {
     case GL_ZERO:
@@ -311,6 +318,9 @@ GLAPI void APIENTRY glEnable(GLenum cap) {
             SHARED_PALETTE_ENABLED = GL_TRUE;
         }
         break;
+        case GL_ALPHA_TEST: {
+            ALPHA_TEST_ENABLED = GL_TRUE;
+        } break;
         case GL_LIGHT0:
         case GL_LIGHT1:
         case GL_LIGHT2:
@@ -362,6 +372,9 @@ GLAPI void APIENTRY glDisable(GLenum cap) {
             SHARED_PALETTE_ENABLED = GL_FALSE;
         }
         break;
+        case GL_ALPHA_TEST: {
+            ALPHA_TEST_ENABLED = GL_FALSE;
+        } break;
         case GL_LIGHT0:
         case GL_LIGHT1:
         case GL_LIGHT2:
@@ -457,8 +470,20 @@ GLAPI void APIENTRY glBlendFunc(GLenum sfactor, GLenum dfactor) {
     _updatePVRBlend(&GL_CONTEXT);
 }
 
-void glAlphaFunc(GLenum func, GLclampf ref) {
-    ;
+#define PT_ALPHA_REF 0x011c
+
+GLAPI void APIENTRY glAlphaFunc(GLenum func, GLclampf ref) {
+    GLenum validFuncs[] = {
+        GL_GREATER,
+        0
+    };
+
+    if(_glCheckValidEnum(func, validFuncs, __func__) != 0) {
+        return;
+    }
+
+    GLubyte val = (GLubyte)(ref * 255.0f);
+    PVR_SET(PT_ALPHA_REF, val);
 }
 
 void glLineWidth(GLfloat width) {