+"#if defined(USESHADOWMAPRECT) || defined(USESHADOWMAP2D) || defined(USESHADOWMAPCUBE)\n"
+"uniform vec4 ShadowMap_TextureScale;\n"
+"uniform vec4 ShadowMap_Parameters;\n"
+"#endif\n"
+"\n"
+"#if defined(USESHADOWMAPRECT) || defined(USESHADOWMAP2D)\n"
+"vec3 GetShadowMapTC2D(vec3 dir)\n"
+"{\n"
+" vec3 adir = abs(dir);\n"
+"# ifndef USESHADOWMAPVSDCT\n"
+"# ifdef USESHADOWMAPRECT\n"
+"# define cubedir(dx, dy, ox, oy) { tc = vec2(dx, dy); offset = vec2(ox, oy); }\n"
+"# else\n"
+"# define cubedir(dx, dy, ox, oy) { tc = vec2(dx, dy); offset = vec2(ox/2.0, oy/4.0); }\n"
+"# endif\n"
+" vec2 tc;\n"
+" vec2 offset;\n"
+" float ma;\n"
+" if (adir.x > adir.y)\n"
+" {\n"
+" if (adir.x > adir.z)\n"
+" {\n"
+" ma = adir.x;\n"
+" if (dir.x >= 0.0) cubedir(-dir.z, -dir.y, 0.5, 0.5) // +X\n"
+" else cubedir( dir.z, -dir.y, 1.5, 0.5) // -X\n"
+" }\n"
+" else\n"
+" {\n"
+" ma = adir.z;\n"
+" if (dir.z >= 0.0) cubedir( dir.x, -dir.y, 0.5, 2.5) // +Z\n"
+" else cubedir(-dir.x, -dir.y, 1.5, 2.5) // -Z\n"
+" }\n"
+" }\n"
+" else\n"
+" {\n"
+" if (adir.y > adir.z)\n"
+" {\n"
+" ma = adir.y;\n"
+" if (dir.y >= 0.0) cubedir( dir.x, dir.z, 0.5, 1.5) // +Y\n"
+" else cubedir( dir.x, -dir.z, 1.5, 1.5) // -Y\n"
+" }\n"
+" else\n"
+" {\n"
+" ma = adir.z;\n"
+" if (dir.z >= 0.0) cubedir( dir.x, -dir.y, 0.5, 2.5) // +Z\n"
+" else cubedir(-dir.x, -dir.y, 1.5, 2.5) // -Z\n"
+" }\n"
+" }\n"
+"\n"
+"# ifdef USESHADOWMAPRECT\n"
+" return vec3(tc * ShadowMap_Parameters.x, ShadowMap_Parameters.w) / ma + vec3(offset * ShadowMap_Parameters.y, ShadowMap_Parameters.z);\n"
+"# else\n"
+" return vec3(tc * ShadowMap_Parameters.xy, ShadowMap_Parameters.w) / ma + vec3(offset, ShadowMap_Parameters.z);\n"
+"# endif\n"
+"# else\n"
+"# ifdef USESHADOWMAPRECT \n"
+" return vec3(textureCube(Texture_CubeProjection, dir.xyz).ra * ShadowMap_TextureScale.xy, ShadowMap_Parameters.z + ShadowMap_Parameters.w / max(max(adir.x, adir.y), adir.z));\n"
+"# else\n"
+" return vec3(textureCube(Texture_CubeProjection, dir.xyz).ra, ShadowMap_Parameters.z + ShadowMap_Parameters.w / max(max(adir.x, adir.y), adir.z));\n"
+"# endif\n"
+"# endif\n"
+"}\n"
+"#endif // defined(USESHADOWMAPRECT) || defined(USESHADOWMAP2D)\n"
+"\n"
+"#ifdef USESHADOWMAPCUBE\n"
+"vec4 GetShadowMapTCCube(vec3 dir)\n"
+"{\n"
+" vec3 adir = abs(dir);\n"
+" return vec4(dir, ShadowMap_Parameters.z + ShadowMap_Parameters.w / max(max(adir.x, adir.y), adir.z));\n"
+"}\n"
+"#endif\n"
+"\n"
+"#if !showshadowmap\n"
+"# ifdef USESHADOWMAPRECT\n"
+"float ShadowMapCompare(vec3 dir)\n"
+"{\n"
+" vec3 shadowmaptc = GetShadowMapTC2D(dir);\n"
+" float f;\n"
+"# ifdef USESHADOWSAMPLER\n"
+"\n"
+"# ifdef USESHADOWMAPPCF\n"
+"# define texval(x, y) shadow2DRect(Texture_ShadowMapRect, shadowmaptc + vec3(x, y, 0.0)).r\n"
+" f = dot(vec4(0.25), vec4(texval(-0.4, 1.0), texval(-1.0, -0.4), texval(0.4, -1.0), texval(1.0, 0.4)));\n"
+"# else\n"
+" f = shadow2DRect(Texture_ShadowMapRect, shadowmaptc).r;\n"
+"# endif\n"
+"\n"
+"# else\n"
+"\n"
+"# ifdef USESHADOWMAPPCF\n"
+"# define texval(x, y) texture2DRect(Texture_ShadowMapRect, center + vec2(x, y)).r\n"
+"# if 1\n"
+" vec2 center = shadowmaptc.xy - 0.5, offset = fract(center);\n"
+" vec4 row1 = step(shadowmaptc.z, vec4(texval(-1.0, -1.0), texval( 0.0, -1.0), texval( 1.0, -1.0), texval( 2.0, -1.0))),\n"
+" row2 = step(shadowmaptc.z, vec4(texval(-1.0, 0.0), texval( 0.0, 0.0), texval( 1.0, 0.0), texval( 2.0, 0.0))),\n"
+" row3 = step(shadowmaptc.z, vec4(texval(-1.0, 1.0), texval( 0.0, 1.0), texval( 1.0, 1.0), texval( 2.0, 1.0))),\n"
+" row4 = step(shadowmaptc.z, vec4(texval(-1.0, 2.0), texval( 0.0, 2.0), texval( 1.0, 2.0), texval( 2.0, 2.0))),\n"
+" cols = row2 + row3 + mix(row1, row4, offset.y);\n"
+" f = dot(mix(cols.xyz, cols.yzw, offset.x), vec3(1.0/9.0));\n"
+"# else\n"
+" vec2 offset = fract(shadowmaptc.xy);\n"
+" vec3 row1 = step(shadowmaptc.z, vec3(texval(-1.0, -1.0), texval( 0.0, -1.0), texval( 1.0, -1.0))),\n"
+" row2 = step(shadowmaptc.z, vec3(texval(-1.0, 0.0), texval( 0.0, 0.0), texval( 1.0, 0.0)))\n"
+" row3 = step(shadowmaptc.z, vec3(texval(-1.0, 1.0), texval( 0.0, 1.0), texval( 1.0, 1.0))),\n"
+" cols = row2 + mix(row1, row3, offset.y);\n"
+" f = dot(mix(cols.xy, cols.yz, offset.x), vec2(0.25));\n"
+"# endif\n"
+"# else\n"
+" f = step(shadowmaptc.z, texture2DRect(Texture_ShadowMapRect, shadowmaptc.xy).r);\n"
+"# endif\n"
+"\n"
+"# endif\n"
+" return f;\n"
+"}\n"
+"# endif\n"
+"\n"
+"# ifdef USESHADOWMAP2D\n"
+"float ShadowMapCompare(vec3 dir)\n"
+"{\n"
+" vec3 shadowmaptc = GetShadowMapTC2D(dir);\n"
+" float f;\n"
+"\n"
+"# ifdef USESHADOWSAMPLER\n"
+"# ifdef USESHADOWMAPPCF\n"
+"# ifdef GL_EXT_gpu_shader4\n"
+"# define texval(x, y) shadow2DOffset(Texture_ShadowMap2D, shadowmaptc, ivec2(x, y)).r\n"
+"# else\n"
+"# define texval(x, y) shadow2D(Texture_ShadowMap2D, vec3(shadowmaptc.xy + vec2(x, y)*ShadowMap_TextureScale.xy, shadowmaptc.z)).r \n"
+"# endif\n"
+" f = dot(vec4(0.25), vec4(texval(-0.4, 1.0), texval(-1.0, -0.4), texval(0.4, -1.0), texval(1.0, 0.4)));\n"
+"# else\n"
+" f = shadow2D(Texture_ShadowMap2D, shadowmaptc).r;\n"
+"# endif\n"
+"# else\n"
+"# ifdef USESHADOWMAPPCF\n"
+"# ifdef USETEXTUREGATHER\n"
+" vec2 center = shadowmaptc.xy*ShadowMap_TextureScale.zw - 0.5, offset = fract(center);\n"
+" vec4 group1 = step(shadowmaptc.z, textureGather(Texture_ShadowMap2D, (center + vec2(-1.0, -1.0))*ShadowMap_TextureScale.xy)),\n"
+" group2 = step(shadowmaptc.z, textureGather(Texture_ShadowMap2D, (center + vec2( 1.0, -1.0))*ShadowMap_TextureScale.xy)),\n"
+" group3 = step(shadowmaptc.z, textureGather(Texture_ShadowMap2D, (center + vec2(-1.0, 1.0))*ShadowMap_TextureScale.xy)),\n"
+" group4 = step(shadowmaptc.z, textureGather(Texture_ShadowMap2D, (center + vec2( 1.0, 1.0))*ShadowMap_TextureScale.xy)),\n"
+" cols = vec4(group1.rg, group2.rg) + vec4(group3.ab, group4.ab) +\n"
+" mix(vec4(group1.ab, group2.ab), vec4(group3.rg, group4.rg), offset.y);\n"
+" f = dot(mix(cols.xyz, cols.yzw, offset.x), vec3(1.0/9.0));\n"
+"# else\n"
+"# ifdef GL_EXT_gpu_shader4\n"
+" vec2 center = shadowmaptc.xy - 0.5*ShadowMap_TextureScale.xy, offset = fract(center*ShadowMap_TextureScale.zw);\n"
+"# define texval(x, y) texture2DOffset(Texture_ShadowMap2D, center, ivec2(x, y)).r\n"
+"# else\n"
+" vec2 center = shadowmaptc.xy*ShadowMap_TextureScale.zw - 0.5, offset = fract(center);\n"
+"# define texval(x, y) texture2D(Texture_ShadowMap2D, (center + vec2(x, y))*ShadowMap_TextureScale.xy).r \n"
+"# endif\n"
+" vec4 row1 = step(shadowmaptc.z, vec4(texval(-1.0, -1.0), texval( 0.0, -1.0), texval( 1.0, -1.0), texval( 2.0, -1.0))),\n"
+" row2 = step(shadowmaptc.z, vec4(texval(-1.0, 0.0), texval( 0.0, 0.0), texval( 1.0, 0.0), texval( 2.0, 0.0))),\n"
+" row3 = step(shadowmaptc.z, vec4(texval(-1.0, 1.0), texval( 0.0, 1.0), texval( 1.0, 1.0), texval( 2.0, 1.0))),\n"
+" row4 = step(shadowmaptc.z, vec4(texval(-1.0, 2.0), texval( 0.0, 2.0), texval( 1.0, 2.0), texval( 2.0, 2.0))),\n"
+" cols = row2 + row3 + mix(row1, row4, offset.y);\n"
+" f = dot(mix(cols.xyz, cols.yzw, offset.x), vec3(1.0/9.0));\n"
+"# endif\n"
+"# else\n"
+" f = step(shadowmaptc.z, texture2D(Texture_ShadowMap2D, shadowmaptc.xy).r);\n"
+"# endif\n"
+"# endif\n"
+" return f;\n"
+"}\n"
+"# endif\n"
+"\n"
+"# ifdef USESHADOWMAPCUBE\n"
+"float ShadowMapCompare(vec3 dir)\n"
+"{\n"
+" // apply depth texture cubemap as light filter\n"
+" vec4 shadowmaptc = GetShadowMapTCCube(dir);\n"
+" float f;\n"
+"# ifdef USESHADOWSAMPLER\n"
+" f = shadowCube(Texture_ShadowMapCube, shadowmaptc).r;\n"
+"# else\n"
+" f = step(shadowmaptc.w, textureCube(Texture_ShadowMapCube, shadowmaptc.xyz).r);\n"
+"# endif\n"
+" return f;\n"
+"}\n"
+"# endif\n"
+"#endif\n"
+"\n"