blender_light_mask: Set the diffuse sampler.

The samples aren't actually used, but we should at least make it valid.

Author: CrossVR

src/Layers/xrRenderPC_GL/blender_light_mask.cpp

@@ -30,6 +30,7 @@ void	CBlender_accum_direct_mask::Compile(CBlender_Compile& C)
 		//C.r_Pass			("null",			"accum_sun_mask",	false,	FALSE,FALSE,TRUE,D3DBLEND_ZERO,D3DBLEND_ONE,TRUE,1);
 		//C.r_Pass			("stub_notransform","accum_sun_mask",	false,	FALSE,FALSE,TRUE,D3DBLEND_ZERO,D3DBLEND_ONE,TRUE,1);
 		C.r_Pass			("stub_notransform_t","accum_sun_mask_nomsaa",	false,	FALSE,FALSE,TRUE,D3DBLEND_ZERO,D3DBLEND_ONE,TRUE,1);
+		C.r_Sampler_rtf		("s_diffuse",		r2_RT_albedo);
 		C.r_Sampler_rtf		("s_normal",		r2_RT_N);
 		C.r_Sampler_rtf		("s_position",		r2_RT_P);
 		C.r_ColorWriteEnable(false, false, false, false);