+"# define texval(x, y) texture4(Texture_ShadowMap2D, center + float2(x, y)*ShadowMap_TextureScale)\n"
+"# endif\n"
+" float2 offset = frac(shadowmaptc.xy - 0.5), center = (shadowmaptc.xy - offset)*ShadowMap_TextureScale;\n"
+"# if USESHADOWMAPPCF > 1\n"
+" float4 group1 = step(shadowmaptc.z, texval(-2.0, -2.0));\n"
+" float4 group2 = step(shadowmaptc.z, texval( 0.0, -2.0));\n"
+" float4 group3 = step(shadowmaptc.z, texval( 2.0, -2.0));\n"
+" float4 group4 = step(shadowmaptc.z, texval(-2.0, 0.0));\n"
+" float4 group5 = step(shadowmaptc.z, texval( 0.0, 0.0));\n"
+" float4 group6 = step(shadowmaptc.z, texval( 2.0, 0.0));\n"
+" float4 group7 = step(shadowmaptc.z, texval(-2.0, 2.0));\n"
+" float4 group8 = step(shadowmaptc.z, texval( 0.0, 2.0));\n"
+" float4 group9 = step(shadowmaptc.z, texval( 2.0, 2.0));\n"
+" float4 locols = float4(group1.ab, group3.ab);\n"
+" float4 hicols = float4(group7.rg, group9.rg);\n"
+" locols.yz += group2.ab;\n"
+" hicols.yz += group8.rg;\n"
+" float4 midcols = float4(group1.rg, group3.rg) + float4(group7.ab, group9.ab) +\n"
+" float4(group4.rg, group6.rg) + float4(group4.ab, group6.ab) +\n"
+" lerp(locols, hicols, offset.y);\n"
+" float4 cols = group5 + float4(group2.rg, group8.ab);\n"
+" cols.xyz += lerp(midcols.xyz, midcols.yzw, offset.x);\n"
+" f = dot(cols, float4(1.0/25.0));\n"
+"# else\n"
+" float4 group1 = step(shadowmaptc.z, texval(-1.0, -1.0));\n"
+" float4 group2 = step(shadowmaptc.z, texval( 1.0, -1.0));\n"
+" float4 group3 = step(shadowmaptc.z, texval(-1.0, 1.0));\n"
+" float4 group4 = step(shadowmaptc.z, texval( 1.0, 1.0));\n"
+" float4 cols = float4(group1.rg, group2.rg) + float4(group3.ab, group4.ab) +\n"
+" lerp(float4(group1.ab, group2.ab), float4(group3.rg, group4.rg), offset.y);\n"
+" f = dot(lerp(cols.xyz, cols.yzw, offset.x), float3(1.0/9.0));\n"