shader_glsl.h

   1 "// ambient+diffuse+specular+normalmap+attenuation+cubemap+fog shader\n"
   2 "// written by Forest 'LordHavoc' Hale\n"
   3 "// shadowmapping enhancements by Lee 'eihrul' Salzman\n"
   4 "\n"
   5 "// GL ES shaders use precision modifiers, standard GL does not\n"
   6 "#ifndef GL_ES\n"
   7 "#define lowp\n"
   8 "#define mediump\n"
   9 "#define highp\n"
  10 "#endif\n"
  11 "\n"
  12 "#ifdef VERTEX_SHADER\n"
  13 "attribute vec4 Attrib_Position;  // vertex\n"
  14 "attribute vec4 Attrib_Color;     // color\n"
  15 "attribute vec4 Attrib_TexCoord0; // material texcoords\n"
  16 "attribute vec3 Attrib_TexCoord1; // svector\n"
  17 "attribute vec3 Attrib_TexCoord2; // tvector\n"
  18 "attribute vec3 Attrib_TexCoord3; // normal\n"
  19 "attribute vec4 Attrib_TexCoord4; // lightmap texcoords\n"
  20 "#endif\n"
  21 "varying lowp vec4 VertexColor;\n"
  22 "\n"
  23 "#if defined(USEFOGINSIDE) || defined(USEFOGOUTSIDE) || defined(USEFOGHEIGHTTEXTURE)\n"
  24 "# define USEFOG\n"
  25 "#endif\n"
  26 "#if defined(MODE_LIGHTMAP) || defined(MODE_LIGHTDIRECTIONMAP_MODELSPACE) || defined(MODE_LIGHTDIRECTIONMAP_TANGENTSPACE)\n"
  27 "#define USELIGHTMAP\n"
  28 "#endif\n"
  29 "#if defined(USESPECULAR) || defined(USEOFFSETMAPPING) || defined(USEREFLECTCUBE) || defined(MODE_FAKELIGHT)\n"
  30 "#define USEEYEVECTOR\n"
  31 "#endif\n"
  32 "\n"
  33 "#ifdef USESHADOWMAP2D\n"
  34 "# ifdef GL_EXT_gpu_shader4\n"
  35 "#   extension GL_EXT_gpu_shader4 : enable\n"
  36 "# endif\n"
  37 "# ifdef GL_ARB_texture_gather\n"
  38 "#   extension GL_ARB_texture_gather : enable\n"
  39 "# else\n"
  40 "#   ifdef GL_AMD_texture_texture4\n"
  41 "#     extension GL_AMD_texture_texture4 : enable\n"
  42 "#   endif\n"
  43 "# endif\n"
  44 "#endif\n"
  45 "\n"
  46 "//#ifdef USESHADOWSAMPLER\n"
  47 "//# extension GL_ARB_shadow : enable\n"
  48 "//#endif\n"
  49 "\n"
  50 "//#ifdef __GLSL_CG_DATA_TYPES\n"
  51 "//# define myhalf half\n"
  52 "//# define myhalf2 half2\n"
  53 "//# define myhalf3 half3\n"
  54 "//# define myhalf4 half4\n"
  55 "//#else\n"
  56 "# define myhalf mediump float\n"
  57 "# define myhalf2 mediump vec2\n"
  58 "# define myhalf3 mediump vec3\n"
  59 "# define myhalf4 mediump vec4\n"
  60 "//#endif\n"
  61 "\n"
  62 "#ifdef VERTEX_SHADER\n"
  63 "uniform highp mat4 ModelViewProjectionMatrix;\n"
  64 "#endif\n"
  65 "\n"
  66 "#ifdef MODE_DEPTH_OR_SHADOW\n"
  67 "#ifdef VERTEX_SHADER\n"
  68 "void main(void)\n"
  69 "{\n"
  70 "       gl_Position = ModelViewProjectionMatrix * Attrib_Position;\n"
  71 "}\n"
  72 "#endif\n"
  73 "#else // !MODE_DEPTH_ORSHADOW\n"
  74 "\n"
  75 "\n"
  76 "\n"
  77 "\n"
  78 "#ifdef MODE_SHOWDEPTH\n"
  79 "#ifdef VERTEX_SHADER\n"
  80 "void main(void)\n"
  81 "{\n"
  82 "       gl_Position = ModelViewProjectionMatrix * Attrib_Position;\n"
  83 "       VertexColor = vec4(gl_Position.z, gl_Position.z, gl_Position.z, 1.0);\n"
  84 "}\n"
  85 "#endif\n"
  86 "\n"
  87 "#ifdef FRAGMENT_SHADER\n"
  88 "void main(void)\n"
  89 "{\n"
  90 "       gl_FragColor = VertexColor;\n"
  91 "}\n"
  92 "#endif\n"
  93 "#else // !MODE_SHOWDEPTH\n"
  94 "\n"
  95 "\n"
  96 "\n"
  97 "\n"
  98 "#ifdef MODE_POSTPROCESS\n"
  99 "varying mediump vec2 TexCoord1;\n"
 100 "varying mediump vec2 TexCoord2;\n"
 101 "\n"
 102 "#ifdef VERTEX_SHADER\n"
 103 "void main(void)\n"
 104 "{\n"
 105 "       gl_Position = ModelViewProjectionMatrix * Attrib_Position;\n"
 106 "       TexCoord1 = Attrib_TexCoord0.xy;\n"
 107 "#ifdef USEBLOOM\n"
 108 "       TexCoord2 = Attrib_TexCoord4.xy;\n"
 109 "#endif\n"
 110 "}\n"
 111 "#endif\n"
 112 "\n"
 113 "#ifdef FRAGMENT_SHADER\n"
 114 "uniform sampler2D Texture_First;\n"
 115 "#ifdef USEBLOOM\n"
 116 "uniform sampler2D Texture_Second;\n"
 117 "uniform lowp vec4 BloomColorSubtract;\n"
 118 "#endif\n"
 119 "#ifdef USEGAMMARAMPS\n"
 120 "uniform sampler2D Texture_GammaRamps;\n"
 121 "#endif\n"
 122 "#ifdef USESATURATION\n"
 123 "uniform lowp float Saturation;\n"
 124 "#endif\n"
 125 "#ifdef USEVIEWTINT\n"
 126 "uniform lowp vec4 ViewTintColor;\n"
 127 "#endif\n"
 128 "//uncomment these if you want to use them:\n"
 129 "uniform mediump vec4 UserVec1;\n"
 130 "uniform mediump vec4 UserVec2;\n"
 131 "// uniform mediump vec4 UserVec3;\n"
 132 "// uniform mediump vec4 UserVec4;\n"
 133 "// uniform highp float ClientTime;\n"
 134 "uniform mediump vec2 PixelSize;\n"
 135 "void main(void)\n"
 136 "{\n"
 137 "       gl_FragColor = texture2D(Texture_First, TexCoord1);\n"
 138 "#ifdef USEBLOOM\n"
 139 "       gl_FragColor += max(vec4(0,0,0,0), texture2D(Texture_Second, TexCoord2) - BloomColorSubtract);\n"
 140 "#endif\n"
 141 "#ifdef USEVIEWTINT\n"
 142 "       gl_FragColor = mix(gl_FragColor, ViewTintColor, ViewTintColor.a);\n"
 143 "#endif\n"
 144 "\n"
 145 "#ifdef USEPOSTPROCESSING\n"
 146 "// do r_glsl_dumpshader, edit glsl/default.glsl, and replace this by your own postprocessing if you want\n"
 147 "// this code does a blur with the radius specified in the first component of r_glsl_postprocess_uservec1 and blends it using the second component\n"
 148 "       float sobel = 1.0;\n"
 149 "       // vec2 ts = textureSize(Texture_First, 0);\n"
 150 "       // vec2 px = vec2(1/ts.x, 1/ts.y);\n"
 151 "       vec2 px = PixelSize;\n"
 152 "       vec3 x1 = texture2D(Texture_First, TexCoord1 + vec2(-px.x, px.y)).rgb;\n"
 153 "       vec3 x2 = texture2D(Texture_First, TexCoord1 + vec2(-px.x,  0.0)).rgb;\n"
 154 "       vec3 x3 = texture2D(Texture_First, TexCoord1 + vec2(-px.x,-px.y)).rgb;\n"
 155 "       vec3 x4 = texture2D(Texture_First, TexCoord1 + vec2( px.x, px.y)).rgb;\n"
 156 "       vec3 x5 = texture2D(Texture_First, TexCoord1 + vec2( px.x,  0.0)).rgb;\n"
 157 "       vec3 x6 = texture2D(Texture_First, TexCoord1 + vec2( px.x,-px.y)).rgb;\n"
 158 "       vec3 y1 = texture2D(Texture_First, TexCoord1 + vec2( px.x,-px.y)).rgb;\n"
 159 "       vec3 y2 = texture2D(Texture_First, TexCoord1 + vec2(  0.0,-px.y)).rgb;\n"
 160 "       vec3 y3 = texture2D(Texture_First, TexCoord1 + vec2(-px.x,-px.y)).rgb;\n"
 161 "       vec3 y4 = texture2D(Texture_First, TexCoord1 + vec2( px.x, px.y)).rgb;\n"
 162 "       vec3 y5 = texture2D(Texture_First, TexCoord1 + vec2(  0.0, px.y)).rgb;\n"
 163 "       vec3 y6 = texture2D(Texture_First, TexCoord1 + vec2(-px.x, px.y)).rgb;\n"
 164 "       float px1 = -1.0 * dot(vec3(0.3, 0.59, 0.11), x1);\n"
 165 "       float px2 = -2.0 * dot(vec3(0.3, 0.59, 0.11), x2);\n"
 166 "       float px3 = -1.0 * dot(vec3(0.3, 0.59, 0.11), x3);\n"
 167 "       float px4 =  1.0 * dot(vec3(0.3, 0.59, 0.11), x4);\n"
 168 "       float px5 =  2.0 * dot(vec3(0.3, 0.59, 0.11), x5);\n"
 169 "       float px6 =  1.0 * dot(vec3(0.3, 0.59, 0.11), x6);\n"
 170 "       float py1 = -1.0 * dot(vec3(0.3, 0.59, 0.11), y1);\n"
 171 "       float py2 = -2.0 * dot(vec3(0.3, 0.59, 0.11), y2);\n"
 172 "       float py3 = -1.0 * dot(vec3(0.3, 0.59, 0.11), y3);\n"
 173 "       float py4 =  1.0 * dot(vec3(0.3, 0.59, 0.11), y4);\n"
 174 "       float py5 =  2.0 * dot(vec3(0.3, 0.59, 0.11), y5);\n"
 175 "       float py6 =  1.0 * dot(vec3(0.3, 0.59, 0.11), y6);\n"
 176 "       sobel = 0.25 * abs(px1 + px2 + px3 + px4 + px5 + px6) + 0.25 * abs(py1 + py2 + py3 + py4 + py5 + py6);\n"
 177 "       gl_FragColor += texture2D(Texture_First, TexCoord1 + PixelSize*UserVec1.x*vec2(-0.987688, -0.156434)) * UserVec1.y;\n"
 178 "       gl_FragColor += texture2D(Texture_First, TexCoord1 + PixelSize*UserVec1.x*vec2(-0.156434, -0.891007)) * UserVec1.y;\n"
 179 "       gl_FragColor += texture2D(Texture_First, TexCoord1 + PixelSize*UserVec1.x*vec2( 0.891007, -0.453990)) * UserVec1.y;\n"
 180 "       gl_FragColor += texture2D(Texture_First, TexCoord1 + PixelSize*UserVec1.x*vec2( 0.707107,  0.707107)) * UserVec1.y;\n"
 181 "       gl_FragColor += texture2D(Texture_First, TexCoord1 + PixelSize*UserVec1.x*vec2(-0.453990,  0.891007)) * UserVec1.y;\n"
 182 "       gl_FragColor /= (1.0 + 5.0 * UserVec1.y);\n"
 183 "       gl_FragColor.rgb = gl_FragColor.rgb * (1.0 + UserVec2.x) + vec3(max(0.0, sobel - UserVec2.z))*UserVec2.y;\n"
 184 "#endif\n"
 185 "\n"
 186 "#ifdef USESATURATION\n"
 187 "       //apply saturation BEFORE gamma ramps, so v_glslgamma value does not matter\n"
 188 "       float y = dot(gl_FragColor.rgb, vec3(0.299, 0.587, 0.114));\n"
 189 "       // 'vampire sight' effect, wheres red is compensated\n"
 190 "       #ifdef SATURATION_REDCOMPENSATE\n"
 191 "               float rboost = max(0.0, (gl_FragColor.r - max(gl_FragColor.g, gl_FragColor.b))*(1.0 - Saturation));\n"
 192 "               gl_FragColor.rgb = mix(vec3(y), gl_FragColor.rgb, Saturation);\n"
 193 "               gl_FragColor.r += rboost;\n"
 194 "       #else\n"
 195 "               // normal desaturation\n"
 196 "               //gl_FragColor = vec3(y) + (gl_FragColor.rgb - vec3(y)) * Saturation;\n"
 197 "               gl_FragColor.rgb = mix(vec3(y), gl_FragColor.rgb, Saturation);\n"
 198 "       #endif\n"
 199 "#endif\n"
 200 "\n"
 201 "#ifdef USEGAMMARAMPS\n"
 202 "       gl_FragColor.r = texture2D(Texture_GammaRamps, vec2(gl_FragColor.r, 0)).r;\n"
 203 "       gl_FragColor.g = texture2D(Texture_GammaRamps, vec2(gl_FragColor.g, 0)).g;\n"
 204 "       gl_FragColor.b = texture2D(Texture_GammaRamps, vec2(gl_FragColor.b, 0)).b;\n"
 205 "#endif\n"
 206 "}\n"
 207 "#endif\n"
 208 "#else // !MODE_POSTPROCESS\n"
 209 "\n"
 210 "\n"
 211 "\n"
 212 "\n"
 213 "#ifdef MODE_GENERIC\n"
 214 "#ifdef USEDIFFUSE\n"
 215 "varying mediump vec2 TexCoord1;\n"
 216 "#endif\n"
 217 "#ifdef USESPECULAR\n"
 218 "varying mediump vec2 TexCoord2;\n"
 219 "#endif\n"
 220 "#ifdef VERTEX_SHADER\n"
 221 "void main(void)\n"
 222 "{\n"
 223 "       VertexColor = Attrib_Color;\n"
 224 "#ifdef USEDIFFUSE\n"
 225 "       TexCoord1 = Attrib_TexCoord0.xy;\n"
 226 "#endif\n"
 227 "#ifdef USESPECULAR\n"
 228 "       TexCoord2 = Attrib_TexCoord1.xy;\n"
 229 "#endif\n"
 230 "       gl_Position = ModelViewProjectionMatrix * Attrib_Position;\n"
 231 "}\n"
 232 "#endif\n"
 233 "\n"
 234 "#ifdef FRAGMENT_SHADER\n"
 235 "#ifdef USEDIFFUSE\n"
 236 "uniform sampler2D Texture_First;\n"
 237 "#endif\n"
 238 "#ifdef USESPECULAR\n"
 239 "uniform sampler2D Texture_Second;\n"
 240 "#endif\n"
 241 "\n"
 242 "void main(void)\n"
 243 "{\n"
 244 "#ifdef USEVIEWTINT\n"
 245 "       gl_FragColor = VertexColor;\n"
 246 "#else\n"
 247 "       gl_FragColor = vec4(1.0, 1.0, 1.0, 1.0);\n"
 248 "#endif\n"
 249 "#ifdef USEDIFFUSE\n"
 250 "       gl_FragColor *= texture2D(Texture_First, TexCoord1);\n"
 251 "#endif\n"
 252 "\n"
 253 "#ifdef USESPECULAR\n"
 254 "       vec4 tex2 = texture2D(Texture_Second, TexCoord2);\n"
 255 "# ifdef USECOLORMAPPING\n"
 256 "       gl_FragColor *= tex2;\n"
 257 "# endif\n"
 258 "# ifdef USEGLOW\n"
 259 "       gl_FragColor += tex2;\n"
 260 "# endif\n"
 261 "# ifdef USEVERTEXTEXTUREBLEND\n"
 262 "       gl_FragColor = mix(gl_FragColor, tex2, tex2.a);\n"
 263 "# endif\n"
 264 "#endif\n"
 265 "}\n"
 266 "#endif\n"
 267 "#else // !MODE_GENERIC\n"
 268 "\n"
 269 "\n"
 270 "\n"
 271 "\n"
 272 "#ifdef MODE_BLOOMBLUR\n"
 273 "varying mediump vec2 TexCoord;\n"
 274 "#ifdef VERTEX_SHADER\n"
 275 "void main(void)\n"
 276 "{\n"
 277 "       VertexColor = Attrib_Color;\n"
 278 "       TexCoord = Attrib_TexCoord0.xy;\n"
 279 "       gl_Position = ModelViewProjectionMatrix * Attrib_Position;\n"
 280 "}\n"
 281 "#endif\n"
 282 "\n"
 283 "#ifdef FRAGMENT_SHADER\n"
 284 "uniform sampler2D Texture_First;\n"
 285 "uniform mediump vec4 BloomBlur_Parameters;\n"
 286 "\n"
 287 "void main(void)\n"
 288 "{\n"
 289 "       int i;\n"
 290 "       vec2 tc = TexCoord;\n"
 291 "       vec3 color = texture2D(Texture_First, tc).rgb;\n"
 292 "       tc += BloomBlur_Parameters.xy;\n"
 293 "       for (i = 1;i < SAMPLES;i++)\n"
 294 "       {\n"
 295 "               color += texture2D(Texture_First, tc).rgb;\n"
 296 "               tc += BloomBlur_Parameters.xy;\n"
 297 "       }\n"
 298 "       gl_FragColor = vec4(color * BloomBlur_Parameters.z + vec3(BloomBlur_Parameters.w), 1);\n"
 299 "}\n"
 300 "#endif\n"
 301 "#else // !MODE_BLOOMBLUR\n"
 302 "#ifdef MODE_REFRACTION\n"
 303 "varying mediump vec2 TexCoord;\n"
 304 "varying highp vec4 ModelViewProjectionPosition;\n"
 305 "uniform highp mat4 TexMatrix;\n"
 306 "#ifdef VERTEX_SHADER\n"
 307 "\n"
 308 "void main(void)\n"
 309 "{\n"
 310 "       TexCoord = vec2(TexMatrix * Attrib_TexCoord0);\n"
 311 "       gl_Position = ModelViewProjectionMatrix * Attrib_Position;\n"
 312 "       ModelViewProjectionPosition = gl_Position;\n"
 313 "}\n"
 314 "#endif\n"
 315 "\n"
 316 "#ifdef FRAGMENT_SHADER\n"
 317 "uniform sampler2D Texture_Normal;\n"
 318 "uniform sampler2D Texture_Refraction;\n"
 319 "uniform sampler2D Texture_Reflection;\n"
 320 "\n"
 321 "uniform mediump vec4 DistortScaleRefractReflect;\n"
 322 "uniform mediump vec4 ScreenScaleRefractReflect;\n"
 323 "uniform mediump vec4 ScreenCenterRefractReflect;\n"
 324 "uniform lowp vec4 RefractColor;\n"
 325 "uniform lowp vec4 ReflectColor;\n"
 326 "uniform mediump float ReflectFactor;\n"
 327 "uniform mediump float ReflectOffset;\n"
 328 "\n"
 329 "void main(void)\n"
 330 "{\n"
 331 "       vec2 ScreenScaleRefractReflectIW = ScreenScaleRefractReflect.xy * (1.0 / ModelViewProjectionPosition.w);\n"
 332 "       //vec2 ScreenTexCoord = (ModelViewProjectionPosition.xy + normalize(vec3(texture2D(Texture_Normal, TexCoord)) - vec3(0.5)).xy * DistortScaleRefractReflect.xy * 100) * ScreenScaleRefractReflectIW + ScreenCenterRefractReflect.xy;\n"
 333 "       vec2 SafeScreenTexCoord = ModelViewProjectionPosition.xy * ScreenScaleRefractReflectIW + ScreenCenterRefractReflect.xy;\n"
 334 "       vec2 ScreenTexCoord = SafeScreenTexCoord + vec2(normalize(vec3(texture2D(Texture_Normal, TexCoord)) - vec3(0.5))).xy * DistortScaleRefractReflect.xy;\n"
 335 "       // FIXME temporary hack to detect the case that the reflection\n"
 336 "       // gets blackened at edges due to leaving the area that contains actual\n"
 337 "       // content.\n"
 338 "       // Remove this 'ack once we have a better way to stop this thing from\n"
 339 "       // 'appening.\n"
 340 "       float f = min(1.0, length(texture2D(Texture_Refraction, ScreenTexCoord + vec2(0.01, 0.01)).rgb) / 0.05);\n"
 341 "       f      *= min(1.0, length(texture2D(Texture_Refraction, ScreenTexCoord + vec2(0.01, -0.01)).rgb) / 0.05);\n"
 342 "       f      *= min(1.0, length(texture2D(Texture_Refraction, ScreenTexCoord + vec2(-0.01, 0.01)).rgb) / 0.05);\n"
 343 "       f      *= min(1.0, length(texture2D(Texture_Refraction, ScreenTexCoord + vec2(-0.01, -0.01)).rgb) / 0.05);\n"
 344 "       ScreenTexCoord = mix(SafeScreenTexCoord, ScreenTexCoord, f);\n"
 345 "       gl_FragColor = vec4(texture2D(Texture_Refraction, ScreenTexCoord).rgb, 1.0) * RefractColor;\n"
 346 "}\n"
 347 "#endif\n"
 348 "#else // !MODE_REFRACTION\n"
 349 "\n"
 350 "\n"
 351 "\n"
 352 "\n"
 353 "#ifdef MODE_WATER\n"
 354 "varying mediump vec2 TexCoord;\n"
 355 "varying highp vec3 EyeVector;\n"
 356 "varying highp vec4 ModelViewProjectionPosition;\n"
 357 "#ifdef VERTEX_SHADER\n"
 358 "uniform highp vec3 EyePosition;\n"
 359 "uniform highp mat4 TexMatrix;\n"
 360 "\n"
 361 "void main(void)\n"
 362 "{\n"
 363 "       TexCoord = vec2(TexMatrix * Attrib_TexCoord0);\n"
 364 "       vec3 EyeVectorModelSpace = EyePosition - Attrib_Position.xyz;\n"
 365 "       EyeVector.x = dot(EyeVectorModelSpace, Attrib_TexCoord1.xyz);\n"
 366 "       EyeVector.y = dot(EyeVectorModelSpace, Attrib_TexCoord2.xyz);\n"
 367 "       EyeVector.z = dot(EyeVectorModelSpace, Attrib_TexCoord3.xyz);\n"
 368 "       gl_Position = ModelViewProjectionMatrix * Attrib_Position;\n"
 369 "       ModelViewProjectionPosition = gl_Position;\n"
 370 "}\n"
 371 "#endif\n"
 372 "\n"
 373 "#ifdef FRAGMENT_SHADER\n"
 374 "uniform sampler2D Texture_Normal;\n"
 375 "uniform sampler2D Texture_Refraction;\n"
 376 "uniform sampler2D Texture_Reflection;\n"
 377 "\n"
 378 "uniform mediump vec4 DistortScaleRefractReflect;\n"
 379 "uniform mediump vec4 ScreenScaleRefractReflect;\n"
 380 "uniform mediump vec4 ScreenCenterRefractReflect;\n"
 381 "uniform lowp vec4 RefractColor;\n"
 382 "uniform lowp vec4 ReflectColor;\n"
 383 "uniform mediump float ReflectFactor;\n"
 384 "uniform mediump float ReflectOffset;\n"
 385 "uniform highp float ClientTime;\n"
 386 "#ifdef USENORMALMAPSCROLLBLEND\n"
 387 "uniform highp vec2 NormalmapScrollBlend;\n"
 388 "#endif\n"
 389 "\n"
 390 "void main(void)\n"
 391 "{\n"
 392 "       vec4 ScreenScaleRefractReflectIW = ScreenScaleRefractReflect * (1.0 / ModelViewProjectionPosition.w);\n"
 393 "       //vec4 ScreenTexCoord = (ModelViewProjectionPosition.xyxy + normalize(vec3(texture2D(Texture_Normal, TexCoord)) - vec3(0.5)).xyxy * DistortScaleRefractReflect * 100) * ScreenScaleRefractReflectIW + ScreenCenterRefractReflect;\n"
 394 "       vec4 SafeScreenTexCoord = ModelViewProjectionPosition.xyxy * ScreenScaleRefractReflectIW + ScreenCenterRefractReflect;\n"
 395 "       //SafeScreenTexCoord = gl_FragCoord.xyxy * vec4(1.0 / 1920.0, 1.0 / 1200.0, 1.0 / 1920.0, 1.0 / 1200.0);\n"
 396 "       // slight water animation via 2 layer scrolling (todo: tweak)\n"
 397 "       #ifdef USENORMALMAPSCROLLBLEND\n"
 398 "               vec3 normal = texture2D(Texture_Normal, (TexCoord + vec2(0.08, 0.08)*ClientTime*NormalmapScrollBlend.x*0.5)*NormalmapScrollBlend.y).rgb - vec3(1.0);\n"
 399 "               normal += texture2D(Texture_Normal, (TexCoord + vec2(-0.06, -0.09)*ClientTime*NormalmapScrollBlend.x)*NormalmapScrollBlend.y*0.75).rgb;\n"
 400 "               vec4 ScreenTexCoord = SafeScreenTexCoord + vec2(normalize(normal) + vec3(0.15)).xyxy * DistortScaleRefractReflect;\n"
 401 "       #else\n"
 402 "               vec4 ScreenTexCoord = SafeScreenTexCoord + vec2(normalize(vec3(texture2D(Texture_Normal, TexCoord)) - vec3(0.5))).xyxy * DistortScaleRefractReflect;\n"
 403 "       #endif\n"
 404 "       // FIXME temporary hack to detect the case that the reflection\n"
 405 "       // gets blackened at edges due to leaving the area that contains actual\n"
 406 "       // content.\n"
 407 "       // Remove this 'ack once we have a better way to stop this thing from\n"
 408 "       // 'appening.\n"
 409 "       float f  = min(1.0, length(texture2D(Texture_Refraction, ScreenTexCoord.xy + vec2(0.005, 0.01)).rgb) / 0.002);\n"
 410 "       f       *= min(1.0, length(texture2D(Texture_Refraction, ScreenTexCoord.xy + vec2(0.005, -0.01)).rgb) / 0.002);\n"
 411 "       f       *= min(1.0, length(texture2D(Texture_Refraction, ScreenTexCoord.xy + vec2(-0.005, 0.01)).rgb) / 0.002);\n"
 412 "       f       *= min(1.0, length(texture2D(Texture_Refraction, ScreenTexCoord.xy + vec2(-0.005, -0.01)).rgb) / 0.002);\n"
 413 "       ScreenTexCoord.xy = mix(SafeScreenTexCoord.xy, ScreenTexCoord.xy, f);\n"
 414 "       f  = min(1.0, length(texture2D(Texture_Reflection, ScreenTexCoord.zw + vec2(0.005, 0.005)).rgb) / 0.002);\n"
 415 "       f *= min(1.0, length(texture2D(Texture_Reflection, ScreenTexCoord.zw + vec2(0.005, -0.005)).rgb) / 0.002);\n"
 416 "       f *= min(1.0, length(texture2D(Texture_Reflection, ScreenTexCoord.zw + vec2(-0.005, 0.005)).rgb) / 0.002);\n"
 417 "       f *= min(1.0, length(texture2D(Texture_Reflection, ScreenTexCoord.zw + vec2(-0.005, -0.005)).rgb) / 0.002);\n"
 418 "       ScreenTexCoord.zw = mix(SafeScreenTexCoord.zw, ScreenTexCoord.zw, f);\n"
 419 "       float Fresnel = pow(min(1.0, 1.0 - float(normalize(EyeVector).z)), 2.0) * ReflectFactor + ReflectOffset;\n"
 420 "       gl_FragColor = mix(vec4(texture2D(Texture_Refraction, ScreenTexCoord.xy).rgb, 1) * RefractColor, vec4(texture2D(Texture_Reflection, ScreenTexCoord.zw).rgb, 1) * ReflectColor, Fresnel);\n"
 421 "}\n"
 422 "#endif\n"
 423 "#else // !MODE_WATER\n"
 424 "\n"
 425 "\n"
 426 "\n"
 427 "\n"
 428 "// common definitions between vertex shader and fragment shader:\n"
 429 "\n"
 430 "varying mediump vec2 TexCoord;\n"
 431 "#ifdef USEVERTEXTEXTUREBLEND\n"
 432 "varying mediump vec2 TexCoord2;\n"
 433 "#endif\n"
 434 "#ifdef USELIGHTMAP\n"
 435 "varying mediump vec2 TexCoordLightmap;\n"
 436 "#endif\n"
 437 "\n"
 438 "#ifdef MODE_LIGHTSOURCE\n"
 439 "varying mediump vec3 CubeVector;\n"
 440 "#endif\n"
 441 "\n"
 442 "#if (defined(MODE_LIGHTSOURCE) || defined(MODE_LIGHTDIRECTION)) && defined(USEDIFFUSE)\n"
 443 "varying mediump vec3 LightVector;\n"
 444 "#endif\n"
 445 "\n"
 446 "#ifdef USEEYEVECTOR\n"
 447 "varying highp vec3 EyeVector;\n"
 448 "#endif\n"
 449 "#ifdef USEFOG\n"
 450 "varying highp vec4 EyeVectorModelSpaceFogPlaneVertexDist;\n"
 451 "#endif\n"
 452 "\n"
 453 "#if defined(MODE_LIGHTDIRECTIONMAP_MODELSPACE) || defined(MODE_DEFERREDGEOMETRY) || defined(USEREFLECTCUBE)\n"
 454 "varying lowp vec3 VectorS; // direction of S texcoord (sometimes crudely called tangent)\n"
 455 "varying lowp vec3 VectorT; // direction of T texcoord (sometimes crudely called binormal)\n"
 456 "varying lowp vec3 VectorR; // direction of R texcoord (surface normal)\n"
 457 "#endif\n"
 458 "\n"
 459 "#ifdef USEREFLECTION\n"
 460 "varying highp vec4 ModelViewProjectionPosition;\n"
 461 "#endif\n"
 462 "#ifdef MODE_DEFERREDLIGHTSOURCE\n"
 463 "uniform highp vec3 LightPosition;\n"
 464 "varying highp vec4 ModelViewPosition;\n"
 465 "#endif\n"
 466 "\n"
 467 "#ifdef MODE_LIGHTSOURCE\n"
 468 "uniform highp vec3 LightPosition;\n"
 469 "#endif\n"
 470 "uniform highp vec3 EyePosition;\n"
 471 "#ifdef MODE_LIGHTDIRECTION\n"
 472 "uniform highp vec3 LightDir;\n"
 473 "#endif\n"
 474 "uniform highp vec4 FogPlane;\n"
 475 "\n"
 476 "#ifdef USESHADOWMAPORTHO\n"
 477 "varying mediump vec3 ShadowMapTC;\n"
 478 "#endif\n"
 479 "\n"
 480 "#ifdef USEBOUNCEGRID\n"
 481 "varying mediump vec3 BounceGridTexCoord;\n"
 482 "#endif\n"
 483 "\n"
 484 "\n"
 485 "\n"
 486 "\n"
 487 "\n"
 488 "\n"
 489 "// TODO: get rid of tangentt (texcoord2) and use a crossproduct to regenerate it from tangents (texcoord1) and normal (texcoord3), this would require sending a 4 component texcoord1 with W as 1 or -1 according to which side the texcoord2 should be on\n"
 490 "\n"
 491 "// fragment shader specific:\n"
 492 "#ifdef FRAGMENT_SHADER\n"
 493 "\n"
 494 "uniform sampler2D Texture_Normal;\n"
 495 "uniform sampler2D Texture_Color;\n"
 496 "uniform sampler2D Texture_Gloss;\n"
 497 "#ifdef USEGLOW\n"
 498 "uniform sampler2D Texture_Glow;\n"
 499 "#endif\n"
 500 "#ifdef USEVERTEXTEXTUREBLEND\n"
 501 "uniform sampler2D Texture_SecondaryNormal;\n"
 502 "uniform sampler2D Texture_SecondaryColor;\n"
 503 "uniform sampler2D Texture_SecondaryGloss;\n"
 504 "#ifdef USEGLOW\n"
 505 "uniform sampler2D Texture_SecondaryGlow;\n"
 506 "#endif\n"
 507 "#endif\n"
 508 "#ifdef USECOLORMAPPING\n"
 509 "uniform sampler2D Texture_Pants;\n"
 510 "uniform sampler2D Texture_Shirt;\n"
 511 "#endif\n"
 512 "#ifdef USEFOG\n"
 513 "#ifdef USEFOGHEIGHTTEXTURE\n"
 514 "uniform sampler2D Texture_FogHeightTexture;\n"
 515 "#endif\n"
 516 "uniform sampler2D Texture_FogMask;\n"
 517 "#endif\n"
 518 "#ifdef USELIGHTMAP\n"
 519 "uniform sampler2D Texture_Lightmap;\n"
 520 "#endif\n"
 521 "#if defined(MODE_LIGHTDIRECTIONMAP_MODELSPACE) || defined(MODE_LIGHTDIRECTIONMAP_TANGENTSPACE)\n"
 522 "uniform sampler2D Texture_Deluxemap;\n"
 523 "#endif\n"
 524 "#ifdef USEREFLECTION\n"
 525 "uniform sampler2D Texture_Reflection;\n"
 526 "#endif\n"
 527 "\n"
 528 "#ifdef MODE_DEFERREDLIGHTSOURCE\n"
 529 "uniform sampler2D Texture_ScreenDepth;\n"
 530 "uniform sampler2D Texture_ScreenNormalMap;\n"
 531 "#endif\n"
 532 "#ifdef USEDEFERREDLIGHTMAP\n"
 533 "uniform sampler2D Texture_ScreenDiffuse;\n"
 534 "uniform sampler2D Texture_ScreenSpecular;\n"
 535 "#endif\n"
 536 "\n"
 537 "uniform lowp vec3 Color_Pants;\n"
 538 "uniform lowp vec3 Color_Shirt;\n"
 539 "uniform lowp vec3 FogColor;\n"
 540 "\n"
 541 "#ifdef USEFOG\n"
 542 "uniform highp float FogRangeRecip;\n"
 543 "uniform highp float FogPlaneViewDist;\n"
 544 "uniform highp float FogHeightFade;\n"
 545 "vec3 FogVertex(vec3 surfacecolor)\n"
 546 "{\n"
 547 "       vec3 EyeVectorModelSpace = EyeVectorModelSpaceFogPlaneVertexDist.xyz;\n"
 548 "       float FogPlaneVertexDist = EyeVectorModelSpaceFogPlaneVertexDist.w;\n"
 549 "       float fogfrac;\n"
 550 "#ifdef USEFOGHEIGHTTEXTURE\n"
 551 "       vec4 fogheightpixel = texture2D(Texture_FogHeightTexture, vec2(1,1) + vec2(FogPlaneVertexDist, FogPlaneViewDist) * (-2.0 * FogHeightFade));\n"
 552 "       fogfrac = fogheightpixel.a;\n"
 553 "       return mix(fogheightpixel.rgb * FogColor, surfacecolor, texture2D(Texture_FogMask, myhalf2(length(EyeVectorModelSpace)*fogfrac*FogRangeRecip, 0.0)).r);\n"
 554 "#else\n"
 555 "# ifdef USEFOGOUTSIDE\n"
 556 "       fogfrac = min(0.0, FogPlaneVertexDist) / (FogPlaneVertexDist - FogPlaneViewDist) * min(1.0, min(0.0, FogPlaneVertexDist) * FogHeightFade);\n"
 557 "# else\n"
 558 "       fogfrac = FogPlaneViewDist / (FogPlaneViewDist - max(0.0, FogPlaneVertexDist)) * min(1.0, (min(0.0, FogPlaneVertexDist) + FogPlaneViewDist) * FogHeightFade);\n"
 559 "# endif\n"
 560 "       return mix(FogColor, surfacecolor, texture2D(Texture_FogMask, myhalf2(length(EyeVectorModelSpace)*fogfrac*FogRangeRecip, 0.0)).r);\n"
 561 "#endif\n"
 562 "}\n"
 563 "#endif\n"
 564 "\n"
 565 "#ifdef USEOFFSETMAPPING\n"
 566 "uniform mediump float OffsetMapping_Scale;\n"
 567 "vec2 OffsetMapping(vec2 TexCoord)\n"
 568 "{\n"
 569 "#ifdef USEOFFSETMAPPING_RELIEFMAPPING\n"
 570 "       // 14 sample relief mapping: linear search and then binary search\n"
 571 "       // this basically steps forward a small amount repeatedly until it finds\n"
 572 "       // itself inside solid, then jitters forward and back using decreasing\n"
 573 "       // amounts to find the impact\n"
 574 "       //vec3 OffsetVector = vec3(EyeVector.xy * ((1.0 / EyeVector.z) * OffsetMapping_Scale) * vec2(-1, 1), -1);\n"
 575 "       //vec3 OffsetVector = vec3(normalize(EyeVector.xy) * OffsetMapping_Scale * vec2(-1, 1), -1);\n"
 576 "       vec3 OffsetVector = vec3(normalize(EyeVector).xy * OffsetMapping_Scale * vec2(-1, 1), -1);\n"
 577 "       vec3 RT = vec3(TexCoord, 1);\n"
 578 "       OffsetVector *= 0.1;\n"
 579 "       RT += OffsetVector *  step(texture2D(Texture_Normal, RT.xy).a, RT.z);\n"
 580 "       RT += OffsetVector *  step(texture2D(Texture_Normal, RT.xy).a, RT.z);\n"
 581 "       RT += OffsetVector *  step(texture2D(Texture_Normal, RT.xy).a, RT.z);\n"
 582 "       RT += OffsetVector *  step(texture2D(Texture_Normal, RT.xy).a, RT.z);\n"
 583 "       RT += OffsetVector *  step(texture2D(Texture_Normal, RT.xy).a, RT.z);\n"
 584 "       RT += OffsetVector *  step(texture2D(Texture_Normal, RT.xy).a, RT.z);\n"
 585 "       RT += OffsetVector *  step(texture2D(Texture_Normal, RT.xy).a, RT.z);\n"
 586 "       RT += OffsetVector *  step(texture2D(Texture_Normal, RT.xy).a, RT.z);\n"
 587 "       RT += OffsetVector *  step(texture2D(Texture_Normal, RT.xy).a, RT.z);\n"
 588 "       RT += OffsetVector * (step(texture2D(Texture_Normal, RT.xy).a, RT.z)          - 0.5);\n"
 589 "       RT += OffsetVector * (step(texture2D(Texture_Normal, RT.xy).a, RT.z) * 0.5    - 0.25);\n"
 590 "       RT += OffsetVector * (step(texture2D(Texture_Normal, RT.xy).a, RT.z) * 0.25   - 0.125);\n"
 591 "       RT += OffsetVector * (step(texture2D(Texture_Normal, RT.xy).a, RT.z) * 0.125  - 0.0625);\n"
 592 "       RT += OffsetVector * (step(texture2D(Texture_Normal, RT.xy).a, RT.z) * 0.0625 - 0.03125);\n"
 593 "       return RT.xy;\n"
 594 "#else\n"
 595 "       // 2 sample offset mapping (only 2 samples because of ATI Radeon 9500-9800/X300 limits)\n"
 596 "       //vec2 OffsetVector = vec2(EyeVector.xy * ((1.0 / EyeVector.z) * OffsetMapping_Scale) * vec2(-1, 1));\n"
 597 "       //vec2 OffsetVector = vec2(normalize(EyeVector.xy) * OffsetMapping_Scale * vec2(-1, 1));\n"
 598 "       vec2 OffsetVector = vec2(normalize(EyeVector).xy * OffsetMapping_Scale * vec2(-1, 1));\n"
 599 "       OffsetVector *= 0.5;\n"
 600 "       TexCoord += OffsetVector * (1.0 - texture2D(Texture_Normal, TexCoord).a);\n"
 601 "       TexCoord += OffsetVector * (1.0 - texture2D(Texture_Normal, TexCoord).a);\n"
 602 "       return TexCoord;\n"
 603 "#endif\n"
 604 "}\n"
 605 "#endif // USEOFFSETMAPPING\n"
 606 "\n"
 607 "#if defined(MODE_LIGHTSOURCE) || defined(MODE_DEFERREDLIGHTSOURCE)\n"
 608 "uniform sampler2D Texture_Attenuation;\n"
 609 "uniform samplerCube Texture_Cube;\n"
 610 "#endif\n"
 611 "\n"
 612 "#if defined(MODE_LIGHTSOURCE) || defined(MODE_DEFERREDLIGHTSOURCE) || defined(USESHADOWMAPORTHO)\n"
 613 "\n"
 614 "#ifdef USESHADOWMAP2D\n"
 615 "# ifdef USESHADOWSAMPLER\n"
 616 "uniform sampler2DShadow Texture_ShadowMap2D;\n"
 617 "# else\n"
 618 "uniform sampler2D Texture_ShadowMap2D;\n"
 619 "# endif\n"
 620 "#endif\n"
 621 "\n"
 622 "#ifdef USESHADOWMAPVSDCT\n"
 623 "uniform samplerCube Texture_CubeProjection;\n"
 624 "#endif\n"
 625 "\n"
 626 "#if defined(USESHADOWMAP2D)\n"
 627 "uniform mediump vec2 ShadowMap_TextureScale;\n"
 628 "uniform mediump vec4 ShadowMap_Parameters;\n"
 629 "#endif\n"
 630 "\n"
 631 "#if defined(USESHADOWMAP2D)\n"
 632 "# ifdef USESHADOWMAPORTHO\n"
 633 "#  define GetShadowMapTC2D(dir) (min(dir, ShadowMap_Parameters.xyz))\n"
 634 "# else\n"
 635 "#  ifdef USESHADOWMAPVSDCT\n"
 636 "vec3 GetShadowMapTC2D(vec3 dir)\n"
 637 "{\n"
 638 "       vec3 adir = abs(dir);\n"
 639 "       vec2 aparams = ShadowMap_Parameters.xy / max(max(adir.x, adir.y), adir.z);\n"
 640 "       vec4 proj = textureCube(Texture_CubeProjection, dir);\n"
 641 "       return vec3(mix(dir.xy, dir.zz, proj.xy) * aparams.x + proj.zw * ShadowMap_Parameters.z, aparams.y + ShadowMap_Parameters.w);\n"
 642 "}\n"
 643 "#  else\n"
 644 "vec3 GetShadowMapTC2D(vec3 dir)\n"
 645 "{\n"
 646 "       vec3 adir = abs(dir);\n"
 647 "       float ma = adir.z;\n"
 648 "       vec4 proj = vec4(dir, 2.5);\n"
 649 "       if (adir.x > ma) { ma = adir.x; proj = vec4(dir.zyx, 0.5); }\n"
 650 "       if (adir.y > ma) { ma = adir.y; proj = vec4(dir.xzy, 1.5); }\n"
 651 "       vec2 aparams = ShadowMap_Parameters.xy / ma;\n"
 652 "       return vec3(proj.xy * aparams.x + vec2(proj.z < 0.0 ? 1.5 : 0.5, proj.w) * ShadowMap_Parameters.z, aparams.y + ShadowMap_Parameters.w);\n"
 653 "}\n"
 654 "#  endif\n"
 655 "# endif\n"
 656 "#endif // defined(USESHADOWMAP2D)\n"
 657 "\n"
 658 "# ifdef USESHADOWMAP2D\n"
 659 "float ShadowMapCompare(vec3 dir)\n"
 660 "{\n"
 661 "       vec3 shadowmaptc = GetShadowMapTC2D(dir);\n"
 662 "       float f;\n"
 663 "\n"
 664 "#  ifdef USESHADOWSAMPLER\n"
 665 "#    ifdef USESHADOWMAPPCF\n"
 666 "#      define texval(x, y) shadow2D(Texture_ShadowMap2D, vec3(center + vec2(x, y)*ShadowMap_TextureScale, shadowmaptc.z)).r  \n"
 667 "       vec2 center = shadowmaptc.xy*ShadowMap_TextureScale;\n"
 668 "       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"
 669 "#    else\n"
 670 "       f = shadow2D(Texture_ShadowMap2D, vec3(shadowmaptc.xy*ShadowMap_TextureScale, shadowmaptc.z)).r;\n"
 671 "#    endif\n"
 672 "#  else\n"
 673 "#    ifdef USESHADOWMAPPCF\n"
 674 "#     if defined(GL_ARB_texture_gather) || defined(GL_AMD_texture_texture4)\n"
 675 "#      ifdef GL_ARB_texture_gather\n"
 676 "#        define texval(x, y) textureGatherOffset(Texture_ShadowMap2D, center, ivec2(x, y))\n"
 677 "#      else\n"
 678 "#        define texval(x, y) texture4(Texture_ShadowMap2D, center + vec2(x, y)*ShadowMap_TextureScale)\n"
 679 "#      endif\n"
 680 "       vec2 offset = fract(shadowmaptc.xy - 0.5), center = (shadowmaptc.xy - offset)*ShadowMap_TextureScale;\n"
 681 "#      if USESHADOWMAPPCF > 1\n"
 682 "   vec4 group1 = step(shadowmaptc.z, texval(-2.0, -2.0));\n"
 683 "   vec4 group2 = step(shadowmaptc.z, texval( 0.0, -2.0));\n"
 684 "   vec4 group3 = step(shadowmaptc.z, texval( 2.0, -2.0));\n"
 685 "   vec4 group4 = step(shadowmaptc.z, texval(-2.0,  0.0));\n"
 686 "   vec4 group5 = step(shadowmaptc.z, texval( 0.0,  0.0));\n"
 687 "   vec4 group6 = step(shadowmaptc.z, texval( 2.0,  0.0));\n"
 688 "   vec4 group7 = step(shadowmaptc.z, texval(-2.0,  2.0));\n"
 689 "   vec4 group8 = step(shadowmaptc.z, texval( 0.0,  2.0));\n"
 690 "   vec4 group9 = step(shadowmaptc.z, texval( 2.0,  2.0));\n"
 691 "       vec4 locols = vec4(group1.ab, group3.ab);\n"
 692 "       vec4 hicols = vec4(group7.rg, group9.rg);\n"
 693 "       locols.yz += group2.ab;\n"
 694 "       hicols.yz += group8.rg;\n"
 695 "       vec4 midcols = vec4(group1.rg, group3.rg) + vec4(group7.ab, group9.ab) +\n"
 696 "                               vec4(group4.rg, group6.rg) + vec4(group4.ab, group6.ab) +\n"
 697 "                               mix(locols, hicols, offset.y);\n"
 698 "       vec4 cols = group5 + vec4(group2.rg, group8.ab);\n"
 699 "       cols.xyz += mix(midcols.xyz, midcols.yzw, offset.x);\n"
 700 "       f = dot(cols, vec4(1.0/25.0));\n"
 701 "#      else\n"
 702 "       vec4 group1 = step(shadowmaptc.z, texval(-1.0, -1.0));\n"
 703 "       vec4 group2 = step(shadowmaptc.z, texval( 1.0, -1.0));\n"
 704 "       vec4 group3 = step(shadowmaptc.z, texval(-1.0,  1.0));\n"
 705 "       vec4 group4 = step(shadowmaptc.z, texval( 1.0,  1.0));\n"
 706 "       vec4 cols = vec4(group1.rg, group2.rg) + vec4(group3.ab, group4.ab) +\n"
 707 "                               mix(vec4(group1.ab, group2.ab), vec4(group3.rg, group4.rg), offset.y);\n"
 708 "       f = dot(mix(cols.xyz, cols.yzw, offset.x), vec3(1.0/9.0));\n"
 709 "#      endif\n"
 710 "#     else\n"
 711 "#      ifdef GL_EXT_gpu_shader4\n"
 712 "#        define texval(x, y) texture2DOffset(Texture_ShadowMap2D, center, ivec2(x, y)).r\n"
 713 "#      else\n"
 714 "#        define texval(x, y) texture2D(Texture_ShadowMap2D, center + vec2(x, y)*ShadowMap_TextureScale).r  \n"
 715 "#      endif\n"
 716 "#      if USESHADOWMAPPCF > 1\n"
 717 "       vec2 center = shadowmaptc.xy - 0.5, offset = fract(center);\n"
 718 "       center *= ShadowMap_TextureScale;\n"
 719 "       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"
 720 "       vec4 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"
 721 "       vec4 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"
 722 "       vec4 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"
 723 "       vec4 cols = row2 + row3 + mix(row1, row4, offset.y);\n"
 724 "       f = dot(mix(cols.xyz, cols.yzw, offset.x), vec3(1.0/9.0));\n"
 725 "#      else\n"
 726 "       vec2 center = shadowmaptc.xy*ShadowMap_TextureScale, offset = fract(shadowmaptc.xy);\n"
 727 "       vec3 row1 = step(shadowmaptc.z, vec3(texval(-1.0, -1.0), texval( 0.0, -1.0), texval( 1.0, -1.0)));\n"
 728 "       vec3 row2 = step(shadowmaptc.z, vec3(texval(-1.0,  0.0), texval( 0.0,  0.0), texval( 1.0,  0.0)));\n"
 729 "       vec3 row3 = step(shadowmaptc.z, vec3(texval(-1.0,  1.0), texval( 0.0,  1.0), texval( 1.0,  1.0)));\n"
 730 "       vec3 cols = row2 + mix(row1, row3, offset.y);\n"
 731 "       f = dot(mix(cols.xy, cols.yz, offset.x), vec2(0.25));\n"
 732 "#      endif\n"
 733 "#     endif\n"
 734 "#    else\n"
 735 "       f = step(shadowmaptc.z, texture2D(Texture_ShadowMap2D, shadowmaptc.xy*ShadowMap_TextureScale).r);\n"
 736 "#    endif\n"
 737 "#  endif\n"
 738 "#  ifdef USESHADOWMAPORTHO\n"
 739 "       return mix(ShadowMap_Parameters.w, 1.0, f);\n"
 740 "#  else\n"
 741 "       return f;\n"
 742 "#  endif\n"
 743 "}\n"
 744 "# endif\n"
 745 "#endif // !defined(MODE_LIGHTSOURCE) && !defined(MODE_DEFERREDLIGHTSOURCE) && !defined(USESHADOWMAPORTHO)\n"
 746 "#endif // FRAGMENT_SHADER\n"
 747 "\n"
 748 "\n"
 749 "\n"
 750 "\n"
 751 "#ifdef MODE_DEFERREDGEOMETRY\n"
 752 "#ifdef VERTEX_SHADER\n"
 753 "uniform highp mat4 TexMatrix;\n"
 754 "#ifdef USEVERTEXTEXTUREBLEND\n"
 755 "uniform highp mat4 BackgroundTexMatrix;\n"
 756 "#endif\n"
 757 "uniform highp mat4 ModelViewMatrix;\n"
 758 "void main(void)\n"
 759 "{\n"
 760 "       TexCoord = vec2(TexMatrix * Attrib_TexCoord0);\n"
 761 "#ifdef USEVERTEXTEXTUREBLEND\n"
 762 "       VertexColor = Attrib_Color;\n"
 763 "       TexCoord2 = vec2(BackgroundTexMatrix * Attrib_TexCoord0);\n"
 764 "#endif\n"
 765 "\n"
 766 "       // transform unnormalized eye direction into tangent space\n"
 767 "#ifdef USEOFFSETMAPPING\n"
 768 "       vec3 EyeVectorModelSpace = EyePosition - Attrib_Position.xyz;\n"
 769 "       EyeVector.x = dot(EyeVectorModelSpace, Attrib_TexCoord1.xyz);\n"
 770 "       EyeVector.y = dot(EyeVectorModelSpace, Attrib_TexCoord2.xyz);\n"
 771 "       EyeVector.z = dot(EyeVectorModelSpace, Attrib_TexCoord3.xyz);\n"
 772 "#endif\n"
 773 "\n"
 774 "       VectorS = (ModelViewMatrix * vec4(Attrib_TexCoord1.xyz, 0)).xyz;\n"
 775 "       VectorT = (ModelViewMatrix * vec4(Attrib_TexCoord2.xyz, 0)).xyz;\n"
 776 "       VectorR = (ModelViewMatrix * vec4(Attrib_TexCoord3.xyz, 0)).xyz;\n"
 777 "       gl_Position = ModelViewProjectionMatrix * Attrib_Position;\n"
 778 "}\n"
 779 "#endif // VERTEX_SHADER\n"
 780 "\n"
 781 "#ifdef FRAGMENT_SHADER\n"
 782 "void main(void)\n"
 783 "{\n"
 784 "#ifdef USEOFFSETMAPPING\n"
 785 "       // apply offsetmapping\n"
 786 "       vec2 TexCoordOffset = OffsetMapping(TexCoord);\n"
 787 "#define TexCoord TexCoordOffset\n"
 788 "#endif\n"
 789 "\n"
 790 "#ifdef USEALPHAKILL\n"
 791 "       if (texture2D(Texture_Color, TexCoord).a < 0.5)\n"
 792 "               discard;\n"
 793 "#endif\n"
 794 "\n"
 795 "#ifdef USEVERTEXTEXTUREBLEND\n"
 796 "       float alpha = texture2D(Texture_Color, TexCoord).a;\n"
 797 "       float terrainblend = clamp(float(VertexColor.a) * alpha * 2.0 - 0.5, float(0.0), float(1.0));\n"
 798 "       //float terrainblend = min(float(VertexColor.a) * alpha * 2.0, float(1.0));\n"
 799 "       //float terrainblend = float(VertexColor.a) * alpha > 0.5;\n"
 800 "#endif\n"
 801 "\n"
 802 "#ifdef USEVERTEXTEXTUREBLEND\n"
 803 "       vec3 surfacenormal = mix(vec3(texture2D(Texture_SecondaryNormal, TexCoord2)), vec3(texture2D(Texture_Normal, TexCoord)), terrainblend) - vec3(0.5, 0.5, 0.5);\n"
 804 "       float a = mix(texture2D(Texture_SecondaryGloss, TexCoord2).a, texture2D(Texture_Gloss, TexCoord).a, terrainblend);\n"
 805 "#else\n"
 806 "       vec3 surfacenormal = vec3(texture2D(Texture_Normal, TexCoord)) - vec3(0.5, 0.5, 0.5);\n"
 807 "       float a = texture2D(Texture_Gloss, TexCoord).a;\n"
 808 "#endif\n"
 809 "\n"
 810 "       gl_FragColor = vec4(normalize(surfacenormal.x * VectorS + surfacenormal.y * VectorT + surfacenormal.z * VectorR) * 0.5 + vec3(0.5, 0.5, 0.5), a);\n"
 811 "}\n"
 812 "#endif // FRAGMENT_SHADER\n"
 813 "#else // !MODE_DEFERREDGEOMETRY\n"
 814 "\n"
 815 "\n"
 816 "\n"
 817 "\n"
 818 "#ifdef MODE_DEFERREDLIGHTSOURCE\n"
 819 "#ifdef VERTEX_SHADER\n"
 820 "uniform highp mat4 ModelViewMatrix;\n"
 821 "void main(void)\n"
 822 "{\n"
 823 "       ModelViewPosition = ModelViewMatrix * Attrib_Position;\n"
 824 "       gl_Position = ModelViewProjectionMatrix * Attrib_Position;\n"
 825 "}\n"
 826 "#endif // VERTEX_SHADER\n"
 827 "\n"
 828 "#ifdef FRAGMENT_SHADER\n"
 829 "uniform highp mat4 ViewToLight;\n"
 830 "// ScreenToDepth = vec2(Far / (Far - Near), Far * Near / (Near - Far));\n"
 831 "uniform highp vec2 ScreenToDepth;\n"
 832 "uniform myhalf3 DeferredColor_Ambient;\n"
 833 "uniform myhalf3 DeferredColor_Diffuse;\n"
 834 "#ifdef USESPECULAR\n"
 835 "uniform myhalf3 DeferredColor_Specular;\n"
 836 "uniform myhalf SpecularPower;\n"
 837 "#endif\n"
 838 "uniform myhalf2 PixelToScreenTexCoord;\n"
 839 "void main(void)\n"
 840 "{\n"
 841 "       // calculate viewspace pixel position\n"
 842 "       vec2 ScreenTexCoord = gl_FragCoord.xy * PixelToScreenTexCoord;\n"
 843 "       vec3 position;\n"
 844 "       position.z = ScreenToDepth.y / (texture2D(Texture_ScreenDepth, ScreenTexCoord).r + ScreenToDepth.x);\n"
 845 "       position.xy = ModelViewPosition.xy * (position.z / ModelViewPosition.z);\n"
 846 "       // decode viewspace pixel normal\n"
 847 "       myhalf4 normalmap = texture2D(Texture_ScreenNormalMap, ScreenTexCoord);\n"
 848 "       myhalf3 surfacenormal = normalize(normalmap.rgb - myhalf3(0.5,0.5,0.5));\n"
 849 "       // surfacenormal = pixel normal in viewspace\n"
 850 "       // LightVector = pixel to light in viewspace\n"
 851 "       // CubeVector = position in lightspace\n"
 852 "       // eyevector = pixel to view in viewspace\n"
 853 "       vec3 CubeVector = vec3(ViewToLight * vec4(position,1));\n"
 854 "       myhalf fade = myhalf(texture2D(Texture_Attenuation, vec2(length(CubeVector), 0.0)));\n"
 855 "#ifdef USEDIFFUSE\n"
 856 "       // calculate diffuse shading\n"
 857 "       myhalf3 lightnormal = myhalf3(normalize(LightPosition - position));\n"
 858 "       myhalf diffuse = myhalf(max(float(dot(surfacenormal, lightnormal)), 0.0));\n"
 859 "#endif\n"
 860 "#ifdef USESPECULAR\n"
 861 "       // calculate directional shading\n"
 862 "       vec3 eyevector = position * -1.0;\n"
 863 "#  ifdef USEEXACTSPECULARMATH\n"
 864 "       myhalf specular = pow(myhalf(max(float(dot(reflect(lightnormal, surfacenormal), normalize(eyevector)))*-1.0, 0.0)), SpecularPower * normalmap.a);\n"
 865 "#  else\n"
 866 "       myhalf3 specularnormal = normalize(lightnormal + myhalf3(normalize(eyevector)));\n"
 867 "       myhalf specular = pow(myhalf(max(float(dot(surfacenormal, specularnormal)), 0.0)), SpecularPower * normalmap.a);\n"
 868 "#  endif\n"
 869 "#endif\n"
 870 "\n"
 871 "#if defined(USESHADOWMAP2D)\n"
 872 "       fade *= ShadowMapCompare(CubeVector);\n"
 873 "#endif\n"
 874 "\n"
 875 "#ifdef USEDIFFUSE\n"
 876 "       gl_FragData[0] = vec4((DeferredColor_Ambient + DeferredColor_Diffuse * diffuse) * fade, 1.0);\n"
 877 "#else\n"
 878 "       gl_FragData[0] = vec4(DeferredColor_Ambient * fade, 1.0);\n"
 879 "#endif\n"
 880 "#ifdef USESPECULAR\n"
 881 "       gl_FragData[1] = vec4(DeferredColor_Specular * (specular * fade), 1.0);\n"
 882 "#else\n"
 883 "       gl_FragData[1] = vec4(0.0, 0.0, 0.0, 1.0);\n"
 884 "#endif\n"
 885 "\n"
 886 "# ifdef USECUBEFILTER\n"
 887 "       vec3 cubecolor = textureCube(Texture_Cube, CubeVector).rgb;\n"
 888 "       gl_FragData[0].rgb *= cubecolor;\n"
 889 "       gl_FragData[1].rgb *= cubecolor;\n"
 890 "# endif\n"
 891 "}\n"
 892 "#endif // FRAGMENT_SHADER\n"
 893 "#else // !MODE_DEFERREDLIGHTSOURCE\n"
 894 "\n"
 895 "\n"
 896 "\n"
 897 "\n"
 898 "#ifdef VERTEX_SHADER\n"
 899 "uniform highp mat4 TexMatrix;\n"
 900 "#ifdef USEVERTEXTEXTUREBLEND\n"
 901 "uniform highp mat4 BackgroundTexMatrix;\n"
 902 "#endif\n"
 903 "#ifdef MODE_LIGHTSOURCE\n"
 904 "uniform highp mat4 ModelToLight;\n"
 905 "#endif\n"
 906 "#ifdef USESHADOWMAPORTHO\n"
 907 "uniform highp mat4 ShadowMapMatrix;\n"
 908 "#endif\n"
 909 "#ifdef USEBOUNCEGRID\n"
 910 "uniform highp mat4 BounceGridMatrix;\n"
 911 "#endif\n"
 912 "void main(void)\n"
 913 "{\n"
 914 "#if defined(MODE_VERTEXCOLOR) || defined(USEVERTEXTEXTUREBLEND)\n"
 915 "       VertexColor = Attrib_Color;\n"
 916 "#endif\n"
 917 "       // copy the surface texcoord\n"
 918 "       TexCoord = vec2(TexMatrix * Attrib_TexCoord0);\n"
 919 "#ifdef USEVERTEXTEXTUREBLEND\n"
 920 "       TexCoord2 = vec2(BackgroundTexMatrix * Attrib_TexCoord0);\n"
 921 "#endif\n"
 922 "#ifdef USELIGHTMAP\n"
 923 "       TexCoordLightmap = vec2(Attrib_TexCoord4);\n"
 924 "#endif\n"
 925 "\n"
 926 "#ifdef USEBOUNCEGRID\n"
 927 "       BounceGridTexCoord = vec3(BounceGridMatrix * Attrib_Position);\n"
 928 "#endif\n"
 929 "\n"
 930 "#ifdef MODE_LIGHTSOURCE\n"
 931 "       // transform vertex position into light attenuation/cubemap space\n"
 932 "       // (-1 to +1 across the light box)\n"
 933 "       CubeVector = vec3(ModelToLight * Attrib_Position);\n"
 934 "\n"
 935 "# ifdef USEDIFFUSE\n"
 936 "       // transform unnormalized light direction into tangent space\n"
 937 "       // (we use unnormalized to ensure that it interpolates correctly and then\n"
 938 "       //  normalize it per pixel)\n"
 939 "       vec3 lightminusvertex = LightPosition - Attrib_Position.xyz;\n"
 940 "       LightVector.x = dot(lightminusvertex, Attrib_TexCoord1.xyz);\n"
 941 "       LightVector.y = dot(lightminusvertex, Attrib_TexCoord2.xyz);\n"
 942 "       LightVector.z = dot(lightminusvertex, Attrib_TexCoord3.xyz);\n"
 943 "# endif\n"
 944 "#endif\n"
 945 "\n"
 946 "#if defined(MODE_LIGHTDIRECTION) && defined(USEDIFFUSE)\n"
 947 "       LightVector.x = dot(LightDir, Attrib_TexCoord1.xyz);\n"
 948 "       LightVector.y = dot(LightDir, Attrib_TexCoord2.xyz);\n"
 949 "       LightVector.z = dot(LightDir, Attrib_TexCoord3.xyz);\n"
 950 "#endif\n"
 951 "\n"
 952 "       // transform unnormalized eye direction into tangent space\n"
 953 "#ifdef USEEYEVECTOR\n"
 954 "       vec3 EyeVectorModelSpace = EyePosition - Attrib_Position.xyz;\n"
 955 "       EyeVector.x = dot(EyeVectorModelSpace, Attrib_TexCoord1.xyz);\n"
 956 "       EyeVector.y = dot(EyeVectorModelSpace, Attrib_TexCoord2.xyz);\n"
 957 "       EyeVector.z = dot(EyeVectorModelSpace, Attrib_TexCoord3.xyz);\n"
 958 "#endif\n"
 959 "\n"
 960 "#ifdef USEFOG\n"
 961 "       EyeVectorModelSpaceFogPlaneVertexDist.xyz = EyePosition - Attrib_Position.xyz;\n"
 962 "       EyeVectorModelSpaceFogPlaneVertexDist.w = dot(FogPlane, Attrib_Position);\n"
 963 "#endif\n"
 964 "\n"
 965 "#if defined(MODE_LIGHTDIRECTIONMAP_MODELSPACE) || defined(USEREFLECTCUBE)\n"
 966 "       VectorS = Attrib_TexCoord1.xyz;\n"
 967 "       VectorT = Attrib_TexCoord2.xyz;\n"
 968 "       VectorR = Attrib_TexCoord3.xyz;\n"
 969 "#endif\n"
 970 "\n"
 971 "       // transform vertex to camera space, using ftransform to match non-VS rendering\n"
 972 "       gl_Position = ModelViewProjectionMatrix * Attrib_Position;\n"
 973 "\n"
 974 "#ifdef USESHADOWMAPORTHO\n"
 975 "       ShadowMapTC = vec3(ShadowMapMatrix * gl_Position);\n"
 976 "#endif\n"
 977 "\n"
 978 "#ifdef USEREFLECTION\n"
 979 "       ModelViewProjectionPosition = gl_Position;\n"
 980 "#endif\n"
 981 "}\n"
 982 "#endif // VERTEX_SHADER\n"
 983 "\n"
 984 "\n"
 985 "\n"
 986 "\n"
 987 "#ifdef FRAGMENT_SHADER\n"
 988 "#ifdef USEDEFERREDLIGHTMAP\n"
 989 "uniform myhalf2 PixelToScreenTexCoord;\n"
 990 "uniform myhalf3 DeferredMod_Diffuse;\n"
 991 "uniform myhalf3 DeferredMod_Specular;\n"
 992 "#endif\n"
 993 "uniform myhalf3 Color_Ambient;\n"
 994 "uniform myhalf3 Color_Diffuse;\n"
 995 "uniform myhalf3 Color_Specular;\n"
 996 "uniform myhalf SpecularPower;\n"
 997 "#ifdef USEGLOW\n"
 998 "uniform myhalf3 Color_Glow;\n"
 999 "#endif\n"
1000 "uniform myhalf Alpha;\n"
1001 "#ifdef USEREFLECTION\n"
1002 "uniform mediump vec4 DistortScaleRefractReflect;\n"
1003 "uniform mediump vec4 ScreenScaleRefractReflect;\n"
1004 "uniform mediump vec4 ScreenCenterRefractReflect;\n"
1005 "uniform lowp vec4 ReflectColor;\n"
1006 "#endif\n"
1007 "#ifdef USEREFLECTCUBE\n"
1008 "uniform highp mat4 ModelToReflectCube;\n"
1009 "uniform sampler2D Texture_ReflectMask;\n"
1010 "uniform samplerCube Texture_ReflectCube;\n"
1011 "#endif\n"
1012 "#ifdef MODE_LIGHTDIRECTION\n"
1013 "uniform myhalf3 LightColor;\n"
1014 "#endif\n"
1015 "#ifdef MODE_LIGHTSOURCE\n"
1016 "uniform myhalf3 LightColor;\n"
1017 "#endif\n"
1018 "#ifdef USEBOUNCEGRID\n"
1019 "uniform sampler3D Texture_BounceGrid;\n"
1020 "uniform float BounceGridIntensity;\n"
1021 "#endif\n"
1022 "void main(void)\n"
1023 "{\n"
1024 "#ifdef USEOFFSETMAPPING\n"
1025 "       // apply offsetmapping\n"
1026 "       vec2 TexCoordOffset = OffsetMapping(TexCoord);\n"
1027 "#define TexCoord TexCoordOffset\n"
1028 "#endif\n"
1029 "\n"
1030 "       // combine the diffuse textures (base, pants, shirt)\n"
1031 "       myhalf4 color = myhalf4(texture2D(Texture_Color, TexCoord));\n"
1032 "#ifdef USEALPHAKILL\n"
1033 "       if (color.a < 0.5)\n"
1034 "               discard;\n"
1035 "#endif\n"
1036 "       color.a *= Alpha;\n"
1037 "#ifdef USECOLORMAPPING\n"
1038 "       color.rgb += myhalf3(texture2D(Texture_Pants, TexCoord)) * Color_Pants + myhalf3(texture2D(Texture_Shirt, TexCoord)) * Color_Shirt;\n"
1039 "#endif\n"
1040 "#ifdef USEVERTEXTEXTUREBLEND\n"
1041 "       myhalf terrainblend = clamp(myhalf(VertexColor.a) * color.a * 2.0 - 0.5, myhalf(0.0), myhalf(1.0));\n"
1042 "       //myhalf terrainblend = min(myhalf(VertexColor.a) * color.a * 2.0, myhalf(1.0));\n"
1043 "       //myhalf terrainblend = myhalf(VertexColor.a) * color.a > 0.5;\n"
1044 "       color.rgb = mix(myhalf3(texture2D(Texture_SecondaryColor, TexCoord2)), color.rgb, terrainblend);\n"
1045 "       color.a = 1.0;\n"
1046 "       //color = mix(myhalf4(1, 0, 0, 1), color, terrainblend);\n"
1047 "#endif\n"
1048 "\n"
1049 "       // get the surface normal\n"
1050 "#ifdef USEVERTEXTEXTUREBLEND\n"
1051 "       myhalf3 surfacenormal = normalize(mix(myhalf3(texture2D(Texture_SecondaryNormal, TexCoord2)), myhalf3(texture2D(Texture_Normal, TexCoord)), terrainblend) - myhalf3(0.5, 0.5, 0.5));\n"
1052 "#else\n"
1053 "       myhalf3 surfacenormal = normalize(myhalf3(texture2D(Texture_Normal, TexCoord)) - myhalf3(0.5, 0.5, 0.5));\n"
1054 "#endif\n"
1055 "\n"
1056 "       // get the material colors\n"
1057 "       myhalf3 diffusetex = color.rgb;\n"
1058 "#if defined(USESPECULAR) || defined(USEDEFERREDLIGHTMAP)\n"
1059 "# ifdef USEVERTEXTEXTUREBLEND\n"
1060 "       myhalf4 glosstex = mix(myhalf4(texture2D(Texture_SecondaryGloss, TexCoord2)), myhalf4(texture2D(Texture_Gloss, TexCoord)), terrainblend);\n"
1061 "# else\n"
1062 "       myhalf4 glosstex = myhalf4(texture2D(Texture_Gloss, TexCoord));\n"
1063 "# endif\n"
1064 "#endif\n"
1065 "\n"
1066 "#ifdef USEREFLECTCUBE\n"
1067 "       vec3 TangentReflectVector = reflect(-EyeVector, surfacenormal);\n"
1068 "       vec3 ModelReflectVector = TangentReflectVector.x * VectorS + TangentReflectVector.y * VectorT + TangentReflectVector.z * VectorR;\n"
1069 "       vec3 ReflectCubeTexCoord = vec3(ModelToReflectCube * vec4(ModelReflectVector, 0));\n"
1070 "       diffusetex += myhalf3(texture2D(Texture_ReflectMask, TexCoord)) * myhalf3(textureCube(Texture_ReflectCube, ReflectCubeTexCoord));\n"
1071 "#endif\n"
1072 "\n"
1073 "\n"
1074 "\n"
1075 "\n"
1076 "#ifdef MODE_LIGHTSOURCE\n"
1077 "       // light source\n"
1078 "#ifdef USEDIFFUSE\n"
1079 "       myhalf3 lightnormal = myhalf3(normalize(LightVector));\n"
1080 "       myhalf diffuse = myhalf(max(float(dot(surfacenormal, lightnormal)), 0.0));\n"
1081 "       color.rgb = diffusetex * (Color_Ambient + diffuse * Color_Diffuse);\n"
1082 "#ifdef USESPECULAR\n"
1083 "#ifdef USEEXACTSPECULARMATH\n"
1084 "       myhalf specular = pow(myhalf(max(float(dot(reflect(lightnormal, surfacenormal), normalize(EyeVector)))*-1.0, 0.0)), SpecularPower * glosstex.a);\n"
1085 "#else\n"
1086 "       myhalf3 specularnormal = normalize(lightnormal + myhalf3(normalize(EyeVector)));\n"
1087 "       myhalf specular = pow(myhalf(max(float(dot(surfacenormal, specularnormal)), 0.0)), SpecularPower * glosstex.a);\n"
1088 "#endif\n"
1089 "       color.rgb += glosstex.rgb * (specular * Color_Specular);\n"
1090 "#endif\n"
1091 "#else\n"
1092 "       color.rgb = diffusetex * Color_Ambient;\n"
1093 "#endif\n"
1094 "       color.rgb *= LightColor;\n"
1095 "       color.rgb *= myhalf(texture2D(Texture_Attenuation, vec2(length(CubeVector), 0.0)));\n"
1096 "#if defined(USESHADOWMAP2D)\n"
1097 "       color.rgb *= ShadowMapCompare(CubeVector);\n"
1098 "#endif\n"
1099 "# ifdef USECUBEFILTER\n"
1100 "       color.rgb *= myhalf3(textureCube(Texture_Cube, CubeVector));\n"
1101 "# endif\n"
1102 "#endif // MODE_LIGHTSOURCE\n"
1103 "\n"
1104 "\n"
1105 "\n"
1106 "\n"
1107 "#ifdef MODE_LIGHTDIRECTION\n"
1108 "#define SHADING\n"
1109 "#ifdef USEDIFFUSE\n"
1110 "       myhalf3 lightnormal = myhalf3(normalize(LightVector));\n"
1111 "#endif\n"
1112 "#define lightcolor LightColor\n"
1113 "#endif // MODE_LIGHTDIRECTION\n"
1114 "#ifdef MODE_LIGHTDIRECTIONMAP_MODELSPACE\n"
1115 "#define SHADING\n"
1116 "       // deluxemap lightmapping using light vectors in modelspace (q3map2 -light -deluxe)\n"
1117 "       myhalf3 lightnormal_modelspace = myhalf3(texture2D(Texture_Deluxemap, TexCoordLightmap)) * 2.0 + myhalf3(-1.0, -1.0, -1.0);\n"
1118 "       myhalf3 lightcolor = myhalf3(texture2D(Texture_Lightmap, TexCoordLightmap));\n"
1119 "       // convert modelspace light vector to tangentspace\n"
1120 "       myhalf3 lightnormal;\n"
1121 "       lightnormal.x = dot(lightnormal_modelspace, myhalf3(VectorS));\n"
1122 "       lightnormal.y = dot(lightnormal_modelspace, myhalf3(VectorT));\n"
1123 "       lightnormal.z = dot(lightnormal_modelspace, myhalf3(VectorR));\n"
1124 "       lightnormal = normalize(lightnormal); // VectorS/T/R are not always perfectly normalized, and EXACTSPECULARMATH is very picky about this\n"
1125 "       // calculate directional shading (and undoing the existing angle attenuation on the lightmap by the division)\n"
1126 "       // note that q3map2 is too stupid to calculate proper surface normals when q3map_nonplanar\n"
1127 "       // is used (the lightmap and deluxemap coords correspond to virtually random coordinates\n"
1128 "       // on that luxel, and NOT to its center, because recursive triangle subdivision is used\n"
1129 "       // to map the luxels to coordinates on the draw surfaces), which also causes\n"
1130 "       // deluxemaps to be wrong because light contributions from the wrong side of the surface\n"
1131 "       // are added up. To prevent divisions by zero or strong exaggerations, a max()\n"
1132 "       // nudge is done here at expense of some additional fps. This is ONLY needed for\n"
1133 "       // deluxemaps, tangentspace deluxemap avoid this problem by design.\n"
1134 "       lightcolor *= 1.0 / max(0.25, lightnormal.z);\n"
1135 "#endif // MODE_LIGHTDIRECTIONMAP_MODELSPACE\n"
1136 "#ifdef MODE_LIGHTDIRECTIONMAP_TANGENTSPACE\n"
1137 "#define SHADING\n"
1138 "       // deluxemap lightmapping using light vectors in tangentspace (hmap2 -light)\n"
1139 "       myhalf3 lightnormal = myhalf3(texture2D(Texture_Deluxemap, TexCoordLightmap)) * 2.0 + myhalf3(-1.0, -1.0, -1.0);\n"
1140 "       myhalf3 lightcolor = myhalf3(texture2D(Texture_Lightmap, TexCoordLightmap));\n"
1141 "#endif\n"
1142 "\n"
1143 "\n"
1144 "\n"
1145 "\n"
1146 "#ifdef MODE_FAKELIGHT\n"
1147 "#define SHADING\n"
1148 "myhalf3 lightnormal = myhalf3(normalize(EyeVector));\n"
1149 "myhalf3 lightcolor = myhalf3(1.0);\n"
1150 "#endif // MODE_FAKELIGHT\n"
1151 "\n"
1152 "\n"
1153 "\n"
1154 "\n"
1155 "#ifdef MODE_LIGHTMAP\n"
1156 "       color.rgb = diffusetex * (Color_Ambient + myhalf3(texture2D(Texture_Lightmap, TexCoordLightmap)) * Color_Diffuse);\n"
1157 "#endif // MODE_LIGHTMAP\n"
1158 "#ifdef MODE_VERTEXCOLOR\n"
1159 "       color.rgb = diffusetex * (Color_Ambient + myhalf3(VertexColor.rgb) * Color_Diffuse);\n"
1160 "#endif // MODE_VERTEXCOLOR\n"
1161 "#ifdef MODE_FLATCOLOR\n"
1162 "       color.rgb = diffusetex * Color_Ambient;\n"
1163 "#endif // MODE_FLATCOLOR\n"
1164 "\n"
1165 "\n"
1166 "\n"
1167 "\n"
1168 "#ifdef SHADING\n"
1169 "# ifdef USEDIFFUSE\n"
1170 "       myhalf diffuse = myhalf(max(float(dot(surfacenormal, lightnormal)), 0.0));\n"
1171 "#  ifdef USESPECULAR\n"
1172 "#   ifdef USEEXACTSPECULARMATH\n"
1173 "       myhalf specular = pow(myhalf(max(float(dot(reflect(lightnormal, surfacenormal), normalize(EyeVector)))*-1.0, 0.0)), SpecularPower * glosstex.a);\n"
1174 "#   else\n"
1175 "       myhalf3 specularnormal = normalize(lightnormal + myhalf3(normalize(EyeVector)));\n"
1176 "       myhalf specular = pow(myhalf(max(float(dot(surfacenormal, specularnormal)), 0.0)), SpecularPower * glosstex.a);\n"
1177 "#   endif\n"
1178 "       color.rgb = diffusetex * Color_Ambient + (diffusetex * Color_Diffuse * diffuse + glosstex.rgb * Color_Specular * specular) * lightcolor;\n"
1179 "#  else\n"
1180 "       color.rgb = diffusetex * (Color_Ambient + Color_Diffuse * diffuse * lightcolor);\n"
1181 "#  endif\n"
1182 "# else\n"
1183 "       color.rgb = diffusetex * Color_Ambient;\n"
1184 "# endif\n"
1185 "#endif\n"
1186 "\n"
1187 "#ifdef USESHADOWMAPORTHO\n"
1188 "       color.rgb *= ShadowMapCompare(ShadowMapTC);\n"
1189 "#endif\n"
1190 "\n"
1191 "#ifdef USEDEFERREDLIGHTMAP\n"
1192 "       vec2 ScreenTexCoord = gl_FragCoord.xy * PixelToScreenTexCoord;\n"
1193 "       color.rgb += diffusetex * myhalf3(texture2D(Texture_ScreenDiffuse, ScreenTexCoord)) * DeferredMod_Diffuse;\n"
1194 "       color.rgb += glosstex.rgb * myhalf3(texture2D(Texture_ScreenSpecular, ScreenTexCoord)) * DeferredMod_Specular;\n"
1195 "#endif\n"
1196 "\n"
1197 "#ifdef USEBOUNCEGRID\n"
1198 "       color.rgb += diffusetex * myhalf3(texture3D(Texture_BounceGrid, BounceGridTexCoord)) * BounceGridIntensity;\n"
1199 "#endif\n"
1200 "\n"
1201 "#ifdef USEGLOW\n"
1202 "#ifdef USEVERTEXTEXTUREBLEND\n"
1203 "       color.rgb += mix(myhalf3(texture2D(Texture_SecondaryGlow, TexCoord2)), myhalf3(texture2D(Texture_Glow, TexCoord)), terrainblend) * Color_Glow;\n"
1204 "#else\n"
1205 "       color.rgb += myhalf3(texture2D(Texture_Glow, TexCoord)) * Color_Glow;\n"
1206 "#endif\n"
1207 "#endif\n"
1208 "\n"
1209 "#ifdef USEFOG\n"
1210 "       color.rgb = FogVertex(color.rgb);\n"
1211 "#endif\n"
1212 "\n"
1213 "       // reflection must come last because it already contains exactly the correct fog (the reflection render preserves camera distance from the plane, it only flips the side) and ContrastBoost/SceneBrightness\n"
1214 "#ifdef USEREFLECTION\n"
1215 "       vec4 ScreenScaleRefractReflectIW = ScreenScaleRefractReflect * (1.0 / ModelViewProjectionPosition.w);\n"
1216 "       //vec4 ScreenTexCoord = (ModelViewProjectionPosition.xyxy + normalize(myhalf3(texture2D(Texture_Normal, TexCoord)) - myhalf3(0.5)).xyxy * DistortScaleRefractReflect * 100) * ScreenScaleRefractReflectIW + ScreenCenterRefractReflect;\n"
1217 "       vec2 SafeScreenTexCoord = ModelViewProjectionPosition.xy * ScreenScaleRefractReflectIW.zw + ScreenCenterRefractReflect.zw;\n"
1218 "       vec2 ScreenTexCoord = SafeScreenTexCoord + vec3(normalize(myhalf3(texture2D(Texture_Normal, TexCoord)) - myhalf3(0.5))).xy * DistortScaleRefractReflect.zw;\n"
1219 "       // FIXME temporary hack to detect the case that the reflection\n"
1220 "       // gets blackened at edges due to leaving the area that contains actual\n"
1221 "       // content.\n"
1222 "       // Remove this 'ack once we have a better way to stop this thing from\n"
1223 "       // 'appening.\n"
1224 "       float f = min(1.0, length(texture2D(Texture_Reflection, ScreenTexCoord + vec2(0.01, 0.01)).rgb) / 0.05);\n"
1225 "       f      *= min(1.0, length(texture2D(Texture_Reflection, ScreenTexCoord + vec2(0.01, -0.01)).rgb) / 0.05);\n"
1226 "       f      *= min(1.0, length(texture2D(Texture_Reflection, ScreenTexCoord + vec2(-0.01, 0.01)).rgb) / 0.05);\n"
1227 "       f      *= min(1.0, length(texture2D(Texture_Reflection, ScreenTexCoord + vec2(-0.01, -0.01)).rgb) / 0.05);\n"
1228 "       ScreenTexCoord = mix(SafeScreenTexCoord, ScreenTexCoord, f);\n"
1229 "       color.rgb = mix(color.rgb, myhalf3(texture2D(Texture_Reflection, ScreenTexCoord)) * ReflectColor.rgb, ReflectColor.a);\n"
1230 "#endif\n"
1231 "\n"
1232 "       gl_FragColor = vec4(color);\n"
1233 "}\n"
1234 "#endif // FRAGMENT_SHADER\n"
1235 "\n"
1236 "#endif // !MODE_DEFERREDLIGHTSOURCE\n"
1237 "#endif // !MODE_DEFERREDGEOMETRY\n"
1238 "#endif // !MODE_WATER\n"
1239 "#endif // !MODE_REFRACTION\n"
1240 "#endif // !MODE_BLOOMBLUR\n"
1241 "#endif // !MODE_GENERIC\n"
1242 "#endif // !MODE_POSTPROCESS\n"
1243 "#endif // !MODE_SHOWDEPTH\n"
1244 "#endif // !MODE_DEPTH_OR_SHADOW\n"