minor PSSM quality fix

build/engine/shaders/ppgensm/ppgensm_pssm.ps

@@ -111,7 +111,12 @@ float4 main(VSO_ResPos IN): COLOR0
 				float ls_t_hit = dot(vNormalLS, vPixelPosLS.xyz) / dot(vNormalLS, lsGridLineDir);
 				float3 ls_hit_p = ls_t_hit * lsGridLineDir;
 				
-				float constantBias = fBaseBias[split];
+				// float constantBias = fBaseBias[split];
+				
+				// float constantBias = 0.000001f;
+				float fDoubledInversedViewWidth = g_mMatrixTextureV[split][0][0];
+				float constantBias = delta * 0.0007f/*  * pow(2, split) */ /* * pow(1.0 / fDoubledInversedViewWidth, 1.0f + (float)split) */ / fDoubledInversedViewWidth;
+				
 				
 				/** Compute Adaptive Epsilon **/
 				// Normalized depth value in shadow map