LightingPS.cg in the MoBu Dynamic Lighting shader

MoBu_FIX4Lighting_Cg_Shader

// To make the spot light works in correct way with normal maps assigned on meshes, you should change lines to these one

// And last but not least, figure out the spot factor ...
float spotFactor = 1.0f;
if( LightPositions[index].w )
{
    float3 spotLightDir = normalize(LightDirections[index].xyz);
    //spotLightDir = mul(fTangentMat, spotLightDir);
    spotFactor = saturate(  (dot( -normalize(lightDiff), -spotLightDir ) - LightDirections[index].w) / (1 - LightDirections[index].w) );
}