@Rackscha or anyone: could you please try whether FX_LightPass_SL_VSM_C.fx and FX_LightPass_PL_VSM_C.fx compile with: VertexShader = compile vs_2_0 VS(); PixelShader = compile ps_2_a PS(); too? And whether there is a performance difference? Would be great, besides the Cascaded SM will be finalized today