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


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uniform mat4 ModelViewProjectionMatrix;

in vec3 pos;
in ivec4 data;

flat out vec4 faceColor;
flat out int faceActive;

#define FACE_ACTIVE   (1 << 2)
#define FACE_SELECTED (1 << 3)

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

	if ((data.x & FACE_ACTIVE) != 0) {
		faceColor = colorEditMeshActive;
		faceActive = 1;
	}
	else if ((data.x & FACE_SELECTED) != 0) {
		faceColor = colorFaceSelect;
		faceActive = 0;
	}
	else {
		faceColor = colorFace;
		faceActive = 0;
	}
}