vec3 lightPos = {x: 0, y: 2, z: 0};


vec4 vertexShader(	in attr!(vec3, `positions`) inPos,
								in attr!(vec3, `normals`) inNorm,
								out vec3 toLight,
								out vec3 norm)
{ static if (compute) {
	norm = modelMat.rotate(inNorm);
	toLight = lightPos - modelMat.xform(inPos);
	return comboMat.xform(vec4(inPos.x, inPos.y, inPos.z, 1));
} else return vec4.zero; }


/+
option!(`z-test`, false);
option!(`blend`, true);
+/

void pixelShader(	in vec3 toLight,
							in vec3 inNorm,
							out Color output)
{ static if (compute) {
	
	float lightSqDist = toLight.sqLen;
	if (lightSqDist != 0) toLight *= .5f * invSqrt(lightSqDist);
	
	float diffuse = toLight.dot(inNorm) * 200f / (1.f + lightSqDist);
	if (diffuse <= 0) { output.r = output.g = output.b = 0; return; }

	output = float3ToColor((toLight.x + .5f) * diffuse, (toLight.y + .5f) * diffuse, (toLight.z + .5f) * diffuse);
}}