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//Transformation Matrices
matrix matW;
matrix matVP;
//World Light Position
float3 lightPos;
//Texture
texture texDiffuse;
//Sampler
sampler DiffuseSampler = sampler_state
{
Texture = (texDiffuse);
MinFilter = Linear; MagFilter = Linear; MipFilter = Linear;
AddressU = Wrap; AddressV = Wrap; AddressW = Wrap;
MaxAnisotropy = 16;
};
//Vertex Input
struct VS_INPUT
{
float4 position : POSITION0;
float3 normal : NORMAL;
float2 tex0 : TEXCOORD0;
};
//Vertex Output / Pixel Shader Input
struct VS_OUTPUT
{
float4 position : POSITION0;
float2 tex0 : TEXCOORD0;
float shade : TEXCOORD1;
};
//Vertex Shader
VS_OUTPUT vs_lighting(VS_INPUT IN)
{
VS_OUTPUT OUT = (VS_OUTPUT)0;
//getting the position of the vertex in the world
float4 posWorld = mul(IN.position, matW);
float4 normal = normalize(mul(IN.normal, matW));
//getting to position to object space
OUT.position = mul(posWorld, matVP);
OUT.shade = max(dot(normal, normalize(lightPos - posWorld)), 0.2f);
OUT.tex0 = IN.tex0;
return OUT;
}
//Pixel Shader
float4 ps_lighting(VS_OUTPUT IN) : COLOR0
{
float4 color = tex2D(DiffuseSampler, IN.tex0);
return color * IN.shade;
}
//Lighting Technique
technique Lighting
{
pass P0
{
Lighting = false;
VertexShader = compile vs_2_0 vs_lighting();
PixelShader = compile ps_2_0 ps_lighting();
}
}
This currently samples the texture color and intermixes it with the shade color based on the lightPos and some constants.
I want to add something like material colors or vertex colors to be some basic colors of the mesh.
Any ideas?
Thanks
Jack
