GeometryPass.hlsl

Texture2D    diffuseTexture : register(t0);
SamplerState textureSampler : register(s0);

cbuffer TransformBuffer : register(b0) {
	float4x4 worldMatrix,
			 transformMatrix,
			 viewProjectionMatrix;
};

cbuffer MaterialBuffer : register(b1) {
	float3 materialDiffuseAlbedo;
	float  materialSpecularExponent;
	float3 materialSpecularAlbedo;
	bool isTextured,
		 isLighted;
};

struct vsInput {
	float3 positionLS : POSITION;
	float3 textureLS  : TEXTURE;
	float3 normalLS   : NORMAL;
};

struct vsOutput {
	float4 positionCS : SV_POSITION;
	float2 textureLS  : TEXTURE;
	float3 normalWS   : NORMAL;
	float3 positionWS : POSITION;
};

struct psOutput {
	float4 positionWS : SV_Target0;
	float4 normalWS   : SV_Target1;
	float4 diffuseAlbedoWS : SV_Target2;
	float4 specularAlbedoWS : SV_Target3;
};

vsOutput VS( in const vsInput _in ) {
	vsOutput _out;

	_out.positionCS = mul(float4(_in.positionLS, 1.0f), mul(transformMatrix, viewProjectionMatrix));
	_out.positionWS = mul(_in.positionLS, (float3x3) worldMatrix);
	_out.normalWS   = mul(_in.normalLS,   (float3x3) worldMatrix);
	_out.textureLS  = (float2)_in.textureLS;

	return _out;
}

psOutput PS( in vsOutput _in ) {
	psOutput _out;

	_out.normalWS = float4(normalize(_in.normalWS), materialSpecularExponent);

	float _lightEffectModifier;
	if (isLighted)
		_lightEffectModifier = 1.0f;
	else _lightEffectModifier = 0.0f;
	_out.positionWS = float4(_in.positionWS, _lightEffectModifier);

	_out.diffuseAlbedoWS = float4(materialDiffuseAlbedo, 1.0f);
	if (isTextured)
		_out.diffuseAlbedoWS *= diffuseTexture.Sample(textureSampler, _in.textureLS);

	_out.specularAlbedoWS = float4(materialSpecularAlbedo, 1.0f);

	return _out;
}