uniform Lighting
{
	vec3 light_dir;
	mat4 shadow_matrix;
	int shadow_enabled;
};
uniform Transform
{
	mat4 vp;
	mat4 model;
};
uniform sampler2DShadow shadow_map;
const bool use_light = false;

#pragma MSP stage(vertex)
layout(location=0) in vec4 vertex;
layout(location=1) in vec3 normal;
void main()
{
	vec4 world_vertex = model*vertex;
	out vec3 world_normal = mat3(model)*normal;
	gl_Position = vp*world_vertex;
	if(shadow_enabled!=0)
	{
		out vec3 shadow_coord = (shadow_matrix*world_vertex).xyz;
	}
}

#pragma MSP stage(fragment)
layout(location=0) out vec4 frag_color;
void main()
{
	vec3 color = vec3(1.0);
	if(use_light)
	{
		float intensity = max(dot(normalize(world_normal), light_dir), 0.0);
		if(shadow_enabled!=0)
			intensity *= texture(shadow_map, shadow_coord);
		color *= intensity;
	}
	frag_color = vec4(color, 1.0);
}

/* Expected output: vertex
layout(binding=48) uniform Transform
{
	mat4 vp;
	mat4 model;
};
layout(location=0) in vec4 vertex;
void main()
{
	gl_Position = vp*model*vertex;
}
*/

/* Expected output: fragment
layout(location=0) out vec4 frag_color;
void main()
{
	frag_color = vec4(vec3(1.0), 1.0);
}
*/