uniform sampler2D tex;
uniform Transform
{
	mat4 model_matrix;
	mat4 vp_matrix;
};
uniform Lighting
{
	vec3 light_dir;
	vec3 light_color;
};

#pragma MSP stage(vertex)
layout(location=0) in vec4 position;
layout(location=1) in vec3 normal;
layout(location=2) in vec2 texcoord;
void main()
{
	passthrough;
	out vec3 world_normal = mat3(model_matrix)*normal;
	gl_Position = vp_matrix*model_matrix*position;
}

#pragma MSP stage(fragment)
layout(location=0) out vec4 frag_color;
void main()
{
	frag_color = texture(tex, texcoord);
	frag_color.rgb *= max(dot(normalize(world_normal), light_dir), 0.0)*light_color;
}

// Target API: Vulkan

/* Expected output: vertex
layout(set=0, binding=24) uniform Transform
{
  mat4 model_matrix;
  mat4 vp_matrix;
};
layout(location=0) in vec4 position;
layout(location=1) in vec3 normal;
layout(location=2) in vec2 texcoord;
layout(location=0) out vec2 _vs_out_texcoord;
layout(location=1) out vec3 world_normal;
void main()
{
  _vs_out_texcoord = texcoord;
  mat4 _temp = model_matrix;
  world_normal = mat3(_temp[0].xyz, _temp[1].xyz, _temp[2].xyz)*normal;
  gl_Position = vp_matrix*model_matrix*position;
}
*/

/* Expected output: fragment
layout(set=0, binding=71) uniform sampler2D tex;
layout(set=0, binding=65) uniform Lighting
{
  vec3 light_dir;
  vec3 light_color;
};
layout(location=0) out vec4 frag_color;
layout(location=0) in vec2 _vs_out_texcoord;
layout(location=1) in vec3 world_normal;
void main()
{
  frag_color = texture(tex, _vs_out_texcoord);
  frag_color.rgb *= max(dot(normalize(world_normal), light_dir), 0.0)*light_color;
}
*/