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


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


void pixelShader(	in vec3 toLight,
							in vec3 inNorm,
							in vec3 toEye,
							out Color output)
{ static if (compute) {

	toLight.normalize();
	inNorm.normalize();
	toEye.normalize();
	
	float normDotLight = inNorm.dot(toLight);
	vec3 refl = 2f * (normDotLight) * inNorm - toLight;
	
	float fresnel = 1f + toEye.dot(inNorm);
	fresnel *= fresnel;
	fresnel = 1f / (fresnel * fresnel);
	if (fresnel > 0.7) fresnel = 0.7;
	
	output = float3ToColor(0, 0, fresnel);
}}