HLSL: An array of textures and sampler states
- by nate142
The shader must switch between multiple textures depending on the Alpha value of the original texture for each pixel. Now this would word fine if I didn't have to worry about SamplerStates. I have created my array of textures and can select a texture based on the Alpha value of the pixel. But how do I create an Array of SamplerStates and link it to my array of textures? I attempted to treat the SamplerState as a function by adding the (int i) but that didn't work. Also I can't use Texture.Sample since this is shader model 2.0.
//shader model 2.0 (DX9)
texture subTextures[255];
SamplerState MeshTextureSampler(int i)
{
Texture = (subTextures[i]);
};
float4 SampleCompoundTexture(float2 texCoord, float4 diffuse)
{
float4 SelectedColor = SAMPLE_TEXTURE(Texture, texCoord);
int i = SelectedColor.a;
texture SelectedTx = subTextures[i];
return tex2D(MeshTextureSampler(i), texCoord) * diffuse;
}
