source/blender/draw/modes/shaders/edit_mesh_overlay_facefill_vert.glsl


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uniform mat4 ModelViewProjectionMatrix;
uniform mat4 ModelMatrix;
uniform ivec4 dataMask = ivec4(0xFF);

in vec3 pos;
in ivec4 data;

flat out vec4 faceColor;

void main()
{
	gl_Position = ModelViewProjectionMatrix * vec4(pos, 1.0);

	ivec4 data_m = data & dataMask;

	if ((data_m.x & FACE_ACTIVE) != 0) {
		faceColor = colorFaceSelect;
	}
	else if ((data_m.x & FACE_SELECTED) != 0) {
		faceColor = colorFaceSelect;
	}
	else if ((data_m.x & FACE_FREESTYLE) != 0) {
		faceColor = colorFaceFreestyle;
	}
	else {
		faceColor = colorFace;
	}

#ifdef USE_WORLD_CLIP_PLANES
	world_clip_planes_calc_clip_distance((ModelMatrix * vec4(pos, 1.0)).xyz);
#endif
}