source: data/data_extern/programs/Cg/PassthroughFP_sm4.cg

float4 main (float4 pos                 : SV_POSITION, 
                         float2 oUv                     : TEXCOORD0,
                         float4 colour          : COLOR) : COLOR
{
        return colour;
}

float4 mainCg (float4 pos : SV_POSITION, float4 colour0 : COLOR) : COLOR
{
    return colour0;
}

float4 mainForAmbientOneTexture (float4 pos : SV_POSITION, float2 oUv : TEXCOORD0, float4 colour0 : COLOR, uniform float4 colour) : COLOR
{
        return colour;
}