adding the pre-pass on clustered

adding the pre-pass on clustered

Assets/ScriptableRenderLoop/fptl/lightlistbuild-clustered.compute

 	
 
 	// build coarse list using AABB
+#ifdef USE_TWO_PASS_TILED_LIGHTING
+	int NrBigTilesX = (nrTilesX+3)>>2;
+	const int bigTileIdx = (tileIDX.y>>2)*NrBigTilesX + (tileIDX.x>>2);		// map the idx to 64x64 tiles
+	int nrBigTileLights = g_vBigTileLightList[MAX_NR_BIGTILE_LIGHTS_PLUSONE*bigTileIdx+0];
+	for(int l0=(int) t; l0<(int) nrBigTileLights; l0 += NR_THREADS)
+	{
+		int l = g_vBigTileLightList[MAX_NR_BIGTILE_LIGHTS_PLUSONE*bigTileIdx+l0+1];
+#else
+#endif
 		const float3 vMi = g_vBoundsBuffer[l];
 		const float3 vMa = g_vBoundsBuffer[l+g_iNrVisibLights];