shaders/scene_font.h

   1 #ifndef SHADER_scene_font_H
   2 #define SHADER_scene_font_H
   3 static void shader_scene_font_link(void);
   4 static void shader_scene_font_register(void);
   5 static struct vg_shader _shader_scene_font = {
   6    .name = "scene_font",
   7    .link = shader_scene_font_link,
   8    .vs =
   9 {
  10 .orig_file = "shaders/model_font.vs",
  11 .static_src =
  12 "layout (location=0) in vec3 a_co;\n"
  13 "layout (location=1) in vec3 a_norm;\n"
  14 "layout (location=2) in vec2 a_uv;\n"
  15 "\n"
  16 "#line       1        1 \n"
  17 "const float k_motion_lerp_amount = 0.01;\n"
  18 "\n"
  19 "#line      2        0 \n"
  20 "\n"
  21 "out vec3 aMotionVec0;\n"
  22 "out vec3 aMotionVec1;\n"
  23 "\n"
  24 "void vs_motion_out( vec4 vproj0, vec4 vproj1 )\n"
  25 "{\n"
  26 "   // This magically solves some artifacting errors!\n"
  27 "   //\n"
  28 "   vproj1 = vproj0*(1.0-k_motion_lerp_amount) + vproj1*k_motion_lerp_amount;\n"
  29 "\n"
  30 "   aMotionVec0 = vec3( vproj0.xy, vproj0.w );\n"
  31 "   aMotionVec1 = vec3( vproj1.xy, vproj1.w );\n"
  32 "}\n"
  33 "\n"
  34 "#line      6        0 \n"
  35 "\n"
  36 "uniform mat4x3 uMdl;\n"
  37 "uniform mat4 uPv;\n"
  38 "uniform mat4 uPvmPrev;\n"
  39 "uniform vec4 uOffset;\n"
  40 "\n"
  41 "out vec2 aUv;\n"
  42 "out vec4 aNorm;\n"
  43 "out vec3 aCo;\n"
  44 "out vec3 aWorldCo;\n"
  45 "\n"
  46 "void main()\n"
  47 "{\n"
  48 "   vec3 co = a_co*uOffset.w+uOffset.xyz;\n"
  49 "   vec3 world_pos0 = uMdl     * vec4( co, 1.0 );\n"
  50 "   vec4 vproj0     = uPv      * vec4( world_pos0, 1.0 );\n"
  51 "   vec4 vproj1     = uPvmPrev * vec4( co, 1.0 );\n"
  52 "\n"
  53 "   vs_motion_out( vproj0, vproj1 );\n"
  54 "\n"
  55 "   gl_Position = vproj0;\n"
  56 "\n"
  57 "   aUv = a_uv;\n"
  58 "   aNorm = vec4( mat3(uMdl) * a_norm, 0.0 );\n"
  59 "   aCo = co;\n"
  60 "   aWorldCo = world_pos0;\n"
  61 "}\n"
  62 ""},
  63    .fs =
  64 {
  65 .orig_file = "shaders/scene_font.fs",
  66 .static_src =
  67 "uniform sampler2D uTexGarbage; // unused\n"
  68 "uniform sampler2D uTexMain;    // unused\n"
  69 "uniform vec3 uCamera;\n"
  70 "uniform float uTime;\n"
  71 "uniform float uOpacity;\n"
  72 "uniform float uColourize;\n"
  73 "\n"
  74 "#line       1        1 \n"
  75 "// :D\n"
  76 "const float CLEARSKIES_LIGHT_DOT_MIN = 0.0;\n"
  77 "\n"
  78 "#line      9        0 \n"
  79 "#line       1        2 \n"
  80 "// :D\n"
  81 "\n"
  82 "in vec2 aUv;\n"
  83 "in vec4 aNorm;\n"
  84 "in vec3 aCo;\n"
  85 "in vec3 aWorldCo;\n"
  86 "\n"
  87 "#line       1        1 \n"
  88 "layout (location = 0) out vec4 oColour;\n"
  89 "\n"
  90 "// OpenGL wiki: Recommends do not use vec3 because of drivers. hence the v4s...\n"
  91 "layout (std140) uniform ub_world_lighting\n"
  92 "{\n"
  93 "   vec4 g_cube_min;\n"
  94 "   vec4 g_cube_inv_range;\n"
  95 "\n"
  96 "   vec4 g_water_plane;\n"
  97 "   vec4 g_depth_bounds;\n"
  98 "\n"
  99 "   vec4 g_daysky_colour;\n"
 100 "   vec4 g_nightsky_colour;\n"
 101 "   vec4 g_sunset_colour;\n"
 102 "   vec4 g_ambient_colour;\n"
 103 "   vec4 g_sunset_ambient;\n"
 104 "   vec4 g_sun_colour;\n"
 105 "   vec4 g_sun_dir;\n"
 106 "   vec4 g_board_0;\n"
 107 "   vec4 g_board_1;\n"
 108 "\n"
 109 "   float g_water_fog;\n"
 110 "   float g_time;\n"
 111 "   float g_realtime;\n"
 112 "   float g_shadow_length;\n"
 113 "   float g_shadow_spread;\n"
 114 "\n"
 115 "   float g_time_of_day;\n"
 116 "   float g_day_phase;\n"
 117 "   float g_sunset_phase;\n"
 118 "\n"
 119 "   int g_light_preview;\n"
 120 "   int g_shadow_samples;\n"
 121 "\n"
 122 "   int g_debug_indices;\n"
 123 "   int g_debug_complexity;\n"
 124 "};\n"
 125 "\n"
 126 "uniform sampler2D g_world_depth;\n"
 127 "uniform samplerBuffer uLightsArray;\n"
 128 "uniform usampler3D uLightsIndex;\n"
 129 "\n"
 130 "#line       1        1 \n"
 131 "//const vec3  DAYSKY_COLOUR   = vec3( 0.37, 0.54, 0.97 );\n"
 132 "//const vec3  NIGHTSKY_COLOUR = vec3( 0.03, 0.05, 0.20 );\n"
 133 "//const vec3  SUNSET_COLOUR   = vec3( 1.00, 0.32, 0.01 );\n"
 134 "//const vec3  AMBIENT_COLOUR  = vec3( 0.13, 0.17, 0.35 );\n"
 135 "//const vec3  SUNSET_AMBIENT  = vec3( 0.25, 0.17, 0.51 );\n"
 136 "//const vec3  SUN_COLOUR      = vec3( 1.10, 0.89, 0.35 );\n"
 137 "\n"
 138 "const float SUN_ANGLE       = 0.0001;\n"
 139 "const float PI              = 3.14159265358979323846264;\n"
 140 "\n"
 141 "//struct world_info\n"
 142 "//{\n"
 143 "//   float time,\n"
 144 "//         time_of_day,\n"
 145 "//         day_phase,\n"
 146 "//         sunset_phase;\n"
 147 "//   \n"
 148 "//   vec3 sun_dir;\n"
 149 "//};\n"
 150 "\n"
 151 "vec3 rand33(vec3 p3)\n"
 152 "{\n"
 153 "       p3 = fract(p3 * vec3(.1031, .1030, .0973));\n"
 154 "   p3 += dot(p3, p3.yxz+33.33);\n"
 155 "   return fract((p3.xxy + p3.yxx)*p3.zyx);\n"
 156 "}\n"
 157 "\n"
 158 "float stars( vec3 rd, float rr, float size ){\n"
 159 "   vec3 co = rd * rr;\n"
 160 "\n"
 161 "   float a = atan(co.y, length(co.xz)) + 4.0 * PI;\n"
 162 "\n"
 163 "   float spaces = 1.0 / rr;\n"
 164 "   size = (rr * 0.0015) * fwidth(a) * 1000.0 * size;\n"
 165 "   a -= mod(a, spaces) - spaces * 0.5;\n"
 166 "\n"
 167 "   float count = floor(sqrt(pow(rr, 2.0) * (1.0 - pow(sin(a), 2.0))) * 3.0);\n"
 168 "   \n"
 169 "   float plane = atan(co.z, co.x) + 4.0 * PI;\n"
 170 "   plane = plane - mod(plane, PI / count);\n"
 171 "\n"
 172 "   vec2 delta = rand33(vec3(plane, a, 0.0)).xy;\n"
 173 "\n"
 174 "   float level = sin(a + spaces * (delta.y - 0.5) * (1.0 - size)) * rr;\n"
 175 "   float ydist = sqrt(rr * rr - level * level);\n"
 176 "   float angle = plane + (PI * (delta.x * (1.0-size) + size * 0.5) / count);\n"
 177 "   vec3 center = vec3(cos(angle) * ydist, level, sin(angle) * ydist);\n"
 178 "   float star = smoothstep(size, 0.0, distance(center, co));\n"
 179 "   return star;\n"
 180 "}\n"
 181 "\n"
 182 "float luminance( vec3 v )\n"
 183 "{\n"
 184 "   return dot( v, vec3(0.2126, 0.7152, 0.0722) );\n"
 185 "}\n"
 186 "\n"
 187 "vec3 clearskies_ambient( vec3 dir )\n"
 188 "{\n"
 189 "   float sun_azimuth  = g_sunset_phase * (dot( dir.xz, g_sun_dir.xz )*0.4+0.6);\n"
 190 "   float sky_gradient = dir.y;\n"
 191 "   \n"
 192 "   /* Blend phase colours */\n"
 193 "   vec3 ambient  = g_daysky_colour.rgb   * (g_day_phase-g_sunset_phase*0.1);\n"
 194 "        ambient += g_sunset_colour.rgb   * (1.0-dir.y*0.5)*sun_azimuth;\n"
 195 "        ambient += g_nightsky_colour.rgb * (1.0-g_day_phase);\n"
 196 "   \n"
 197 "   /* Add gradient */\n"
 198 "        ambient -= sky_gradient * luminance(ambient);\n"
 199 "        \n"
 200 "   return ambient;\n"
 201 "}\n"
 202 "\n"
 203 "vec3 clearskies_sky( vec3 ray_dir )\n"
 204 "{\n"
 205 "   ray_dir.y = abs( ray_dir.y );\n"
 206 "   vec3 sky_colour  = clearskies_ambient( ray_dir );\n"
 207 "   \n"
 208 "   /* Sun */\n"
 209 "   float sun_theta  = dot( ray_dir, g_sun_dir.xyz );\n"
 210 "   float sun_size   = max( 0.0, sun_theta * 0.5 + 0.5 + SUN_ANGLE );\n"
 211 "   float sun_shape  = pow( sun_size, 2000.0 );\n"
 212 "         sun_shape += sun_size * max(g_sun_dir.y,0.0) * 0.5;\n"
 213 "         \n"
 214 "   vec3 sun_colour  = mix( vec3(1.0), g_sunset_colour.rgb, g_sunset_phase*0.5 );\n"
 215 "        sun_colour *= sun_shape;\n"
 216 "\n"
 217 "   \n"
 218 "   float star = 0.0;\n"
 219 "   float star_blend = 10.0*max(0.0,(1.0-g_day_phase*2.0));\n"
 220 "\n"
 221 "   if( star_blend > 0.001 ){\n"
 222 "      for( float j = 1.0; j <= 4.1; j += 1.0 ){\n"
 223 "         float m = mix(0.6, 0.9, smoothstep(1.0, 2.0, j));\n"
 224 "         star += stars( ray_dir, 1.94 * pow( 1.64, j ), m ) * (1.0/pow(4.0, j));\n"
 225 "      }\n"
 226 "   }\n"
 227 "   \n"
 228 "   vec3 composite   = sky_colour + sun_colour + star*star_blend;\n"
 229 "   return composite;\n"
 230 "}\n"
 231 "\n"
 232 "vec3 clearskies_lighting( vec3 normal, float shadow, vec3 halfview )\n"
 233 "{\n"
 234 "   float fresnel = 1.0 - abs(dot(normal,halfview));\n"
 235 "\n"
 236 "   vec3  reflect_colour = mix( g_daysky_colour.rgb, g_sunset_colour.rgb, \n"
 237 "                               g_sunset_phase );\n"
 238 "\n"
 239 "   vec3  sky_reflection = 0.5 * fresnel * reflect_colour;\n"
 240 "   vec3  light_sun      = max( CLEARSKIES_LIGHT_DOT_MIN, \n"
 241 "                               dot(normal,g_sun_dir.xyz)*0.75+0.25\n"
 242 "                           ) * g_sun_colour.rgb * g_day_phase;\n"
 243 "\n"
 244 "   float scaled_shadow = max( shadow, 1.0 - max(g_sun_dir.y,0.0) );\n"
 245 "   vec3 ambient = mix( g_ambient_colour.rgb, g_sunset_ambient.rgb, \n"
 246 "                       g_sunset_phase );\n"
 247 "\n"
 248 "   return ambient + (light_sun + sky_reflection) * shadow;\n"
 249 "}\n"
 250 "\n"
 251 "#line     44        0 \n"
 252 "\n"
 253 "float world_depth_sample( vec3 pos )\n"
 254 "{\n"
 255 "   vec2 depth_coord = (pos.xz - g_depth_bounds.xy) * g_depth_bounds.zw; \n"
 256 "   return texture( g_world_depth, depth_coord ).r;\n"
 257 "}\n"
 258 "\n"
 259 "float world_water_depth( vec3 pos )\n"
 260 "{\n"
 261 "   float ref_depth = g_water_plane.y*g_water_plane.w;\n"
 262 "   return world_depth_sample( pos ) - ref_depth;\n"
 263 "}\n"
 264 "\n"
 265 "float shadow_sample( vec3 co ){\n"
 266 "   float height_sample = world_depth_sample( co );\n"
 267 "\n"
 268 "   float fdelta = height_sample - co.y;\n"
 269 "   return clamp( fdelta, 0.2, 0.4 )-0.2;\n"
 270 "}\n"
 271 "\n"
 272 "float newlight_compute_sun_shadow( vec3 co, vec3 dir ){\n"
 273 "   if( g_shadow_samples == 0 ){\n"
 274 "      return 1.0;\n"
 275 "   }\n"
 276 "\n"
 277 "   float fspread = g_shadow_spread;\n"
 278 "   float flength = g_shadow_length;\n"
 279 "\n"
 280 "   float famt = 0.0;\n"
 281 "   famt += shadow_sample(co+(dir+vec3(-0.56,0.55, 0.30)*fspread)*flength*0.1);\n"
 282 "   famt += shadow_sample(co+(dir+vec3( 0.80,0.68, 0.34)*fspread)*flength*0.2);\n"
 283 "   famt += shadow_sample(co+(dir+vec3( 0.78,0.07,-0.06)*fspread)*flength*0.3);\n"
 284 "   famt += shadow_sample(co+(dir+vec3(-0.59,0.07,-0.42)*fspread)*flength*0.4);\n"
 285 "\n"
 286 "   //famt+=shadow_sample(co+(dir+vec3(-0.790,-0.933,-0.875)*fspread)*flength*0.5);\n"
 287 "   //famt+=shadow_sample(co+(dir+vec3( 0.807,-0.690, 0.472)*fspread)*flength*0.6);\n"
 288 "   //famt+=shadow_sample(co+(dir+vec3( 0.522,-0.379, 0.350)*fspread)*flength*0.7);\n"
 289 "   //famt+=shadow_sample(co+(dir+vec3( 0.483, 0.201, 0.306)*fspread)*flength*0.8);\n"
 290 "\n"
 291 "   return 1.0 - famt;\n"
 292 "}\n"
 293 "\n"
 294 "float newlight_specular( vec3 wnormal, vec3 dir, vec3 halfview, float exponent )\n"
 295 "{\n"
 296 "   vec3 specdir = reflect( -dir, wnormal );\n"
 297 "   return pow(max(dot( halfview, specdir ), 0.0), exponent);\n"
 298 "}\n"
 299 "\n"
 300 "vec3 scene_apply_fog( vec3 vfrag, vec3 colour, float fdist ){\n"
 301 "   float dist = pow(fdist*0.0010,0.78);\n"
 302 "   return mix( vfrag, colour, min( 1.0, dist ) );\n"
 303 "}\n"
 304 "\n"
 305 "vec3 scene_calculate_light( int light_index, \n"
 306 "                            vec3 halfview, vec3 co, vec3 normal )\n"
 307 "{\n"
 308 "   vec4 light_colour = texelFetch( uLightsArray, light_index+0 );\n"
 309 "   vec4 light_co     = texelFetch( uLightsArray, light_index+1 );\n"
 310 "   vec4 light_dir    = texelFetch( uLightsArray, light_index+2 );\n"
 311 "\n"
 312 "   vec3 light_delta = light_co.xyz-co;\n"
 313 "   float dist2 = dot(light_delta,light_delta);\n"
 314 "\n"
 315 "   light_delta = normalize( light_delta );\n"
 316 "\n"
 317 "   float quadratic = dist2*100.0;\n"
 318 "   float attenuation  = 1.0/( 1.0 + quadratic );\n"
 319 "         attenuation *= max( dot( light_delta, normal ), 0.0 );\n"
 320 "\n"
 321 "   float falloff = max( 0.0, 1.0-(dist2*light_co.w) );\n"
 322 "\n"
 323 "   if( light_dir.w < 0.999999 ){\n"
 324 "      float spot_theta = max( 0.0, dot( light_delta, -light_dir.xyz ) );\n"
 325 "      falloff *= max( 0.0, (spot_theta - light_dir.w) / (1.0-light_dir.w) );\n"
 326 "   }\n"
 327 "\n"
 328 "   return light_colour.rgb * attenuation * falloff \n"
 329 "            * step( g_day_phase, light_colour.w );\n"
 330 "}\n"
 331 "\n"
 332 "vec3 scene_calculate_packed_light_patch( uint packed_index, \n"
 333 "                                         vec3 halfview, vec3 co, vec3 normal )\n"
 334 "{\n"
 335 "   uint light_count = packed_index & 0x3u;\n"
 336 "\n"
 337 "   vec3 l = vec3(0.0);\n"
 338 "\n"
 339 "   if( light_count >= 1u ){\n"
 340 "      int index_0 = int( ((packed_index >>  2u) & 0x3ffu) * 3u );\n"
 341 "      int index_1 = int( ((packed_index >> 12u) & 0x3ffu) * 3u );\n"
 342 "      int index_2 = int( ((packed_index >> 22u) & 0x3ffu) * 3u );\n"
 343 "\n"
 344 "      l += scene_calculate_light( index_0, halfview, co, normal );\n"
 345 "\n"
 346 "      if( light_count >= 2u ){\n"
 347 "         l += scene_calculate_light( index_1, halfview, co, normal );\n"
 348 "\n"
 349 "         if( light_count >= 3u ){\n"
 350 "            l += scene_calculate_light( index_2, halfview, co, normal );\n"
 351 "         }\n"
 352 "      }\n"
 353 "   }\n"
 354 "\n"
 355 "   return l;\n"
 356 "}\n"
 357 "\n"
 358 "vec3 world_compute_lighting( vec3 diffuse, vec3 normal, vec3 co,\n"
 359 "                             float light_mask )\n"
 360 "{\n"
 361 "   if( g_light_preview == 1 )\n"
 362 "      diffuse = vec3(0.75);\n"
 363 "\n"
 364 "   // Lighting\n"
 365 "   vec3 halfview = uCamera - co;\n"
 366 "   float fdist = length(halfview);\n"
 367 "   halfview /= fdist;\n"
 368 "\n"
 369 "   float world_shadow = newlight_compute_sun_shadow( \n"
 370 "               co, g_sun_dir.xyz * (1.0/(max(g_sun_dir.y,0.0)+0.2)) );\n"
 371 "\n"
 372 "   vec3 total_light = clearskies_lighting( \n"
 373 "                           normal, min( light_mask, world_shadow ), halfview );\n"
 374 "\n"
 375 "   vec3 cube_coord = (co - g_cube_min.xyz) * g_cube_inv_range.xyz;\n"
 376 "        cube_coord = floor( cube_coord );\n"
 377 "\n"
 378 "   if( g_debug_indices == 1 )\n"
 379 "   {\n"
 380 "      return rand33(cube_coord);\n"
 381 "   }\n"
 382 "\n"
 383 "   if( g_debug_complexity == 1 )\n"
 384 "   {\n"
 385 "      ivec3 coord = ivec3( cube_coord );\n"
 386 "      uvec4 index_sample = texelFetch( uLightsIndex, coord, 0 );\n"
 387 "\n"
 388 "      uint light_count = (index_sample.x & 0x3u) + (index_sample.y & 0x3u);\n"
 389 "      return vec3( float(light_count)*(1.0/6.0), 0.0, 0.5 );\n"
 390 "   }\n"
 391 "\n"
 392 "   // FIXME: this coord should absolutely must be clamped!\n"
 393 "   \n"
 394 "   ivec3 coord = ivec3( cube_coord );\n"
 395 "   uvec4 index_sample = texelFetch( uLightsIndex, coord, 0 );\n"
 396 "\n"
 397 "   total_light += \n"
 398 "      scene_calculate_packed_light_patch( index_sample.x,\n"
 399 "                                          halfview, co, normal ) \n"
 400 "                                          * light_mask;\n"
 401 "   total_light += \n"
 402 "      scene_calculate_packed_light_patch( index_sample.y,\n"
 403 "                                          halfview, co, normal )\n"
 404 "                                          * light_mask;\n"
 405 "\n"
 406 "   // Take a section of the sky function to give us a matching fog colour\n"
 407 "\n"
 408 "   vec3 fog_colour  = clearskies_ambient( -halfview );\n"
 409 "   float sun_theta  = dot( -halfview, g_sun_dir.xyz );\n"
 410 "   float sun_size   = max( 0.0, sun_theta * 0.5 + 0.5 );\n"
 411 "   float sun_shape  = sun_size * max(g_sun_dir.y,0.0) * 0.5;\n"
 412 "         \n"
 413 "   vec3 sun_colour  = mix( vec3(1.0), g_sunset_colour.rgb, g_sunset_phase*0.5 );\n"
 414 "        sun_colour *= sun_shape;\n"
 415 "\n"
 416 "   fog_colour += sun_colour;\n"
 417 "   return scene_apply_fog( diffuse * total_light, fog_colour, fdist );\n"
 418 "}\n"
 419 "\n"
 420 "#line      9        0 \n"
 421 "\n"
 422 "float sdLine( vec3 p, vec3 a, vec3 b )\n"
 423 "{\n"
 424 "  vec3 pa = p - a;\n"
 425 "  vec3 ba = b - a;\n"
 426 "\n"
 427 "  float h = clamp( dot(pa,ba)/dot(ba,ba), 0.0, 1.0 );\n"
 428 "  return length( pa - ba*h );\n"
 429 "}\n"
 430 "\n"
 431 "float compute_board_shadow()\n"
 432 "{\n"
 433 "   // player shadow\n"
 434 "   float dist_to_player = max( 0.0, sdLine( aWorldCo, g_board_0.xyz,\n"
 435 "                                                      g_board_1.xyz )-0.1 );\n"
 436 "   float player_shadow = max( 1.0-dist_to_player*2.7, 0.0 );\n"
 437 "   player_shadow *= player_shadow*player_shadow*player_shadow;\n"
 438 "\n"
 439 "   return 1.0 - player_shadow*0.8;\n"
 440 "}\n"
 441 "\n"
 442 "vec3 scene_compute_lighting( vec3 diffuse, vec3 normal, vec3 co )\n"
 443 "{\n"
 444 "   return world_compute_lighting( diffuse, normal, co, compute_board_shadow() );\n"
 445 "}\n"
 446 "\n"
 447 "#line     10        0 \n"
 448 "#line       1        3 \n"
 449 "const float k_motion_lerp_amount = 0.01;\n"
 450 "\n"
 451 "#line      2        0 \n"
 452 "\n"
 453 "layout (location = 1) out vec2 oMotionVec;\n"
 454 "\n"
 455 "in vec3 aMotionVec0;\n"
 456 "in vec3 aMotionVec1;\n"
 457 "\n"
 458 "void compute_motion_vectors()\n"
 459 "{\n"
 460 "   // Write motion vectors\n"
 461 "   vec2 vmotion0 = aMotionVec0.xy / aMotionVec0.z;\n"
 462 "   vec2 vmotion1 = aMotionVec1.xy / aMotionVec1.z;\n"
 463 "\n"
 464 "   oMotionVec = (vmotion1-vmotion0) * (1.0/k_motion_lerp_amount);\n"
 465 "}\n"
 466 "\n"
 467 "#line     11        0 \n"
 468 "\n"
 469 "vec3 pal( float t ){\n"
 470 "   vec3 a = vec3(0.30,0.3,0.3);\n"
 471 "   vec3 b = vec3(0.8);\n"
 472 "   vec3 c = vec3(0.28,0.3,0.4);\n"
 473 "   vec3 d = vec3(0.00,0.1,0.1);\n"
 474 "   return a + b*cos( 6.28318*(c*t+d) );\n"
 475 "}\n"
 476 "\n"
 477 "void main(){\n"
 478 "   compute_motion_vectors();\n"
 479 "   vec3 vfrag = vec3(0.5,0.5,0.5);\n"
 480 "   vec3 qnorm = aNorm.xyz;\n"
 481 "\n"
 482 "   //vec4 vsamplemain = texture( uTexMain, aUv );\n"
 483 "   //vfrag = vsamplemain.rgb;\n"
 484 "\n"
 485 "   vec4 spread0 = uTime*0.0002*vec4(  17.3,-19.6, 23.2,-47.7 );\n"
 486 "   vec4 spread1 = uTime*0.0002*vec4( -13.3, 12.6,-28.2, 14.7 );\n"
 487 "\n"
 488 "   vec2 p = aCo.xy + vec2(0.3);\n"
 489 "   float a = atan( p.y/p.x );\n"
 490 "   vec4 v0 = step( vec4(0.5), fract(vec4(a) + spread0) );\n"
 491 "   vec4 v1 = step( vec4(0.5), fract(vec4(a) + spread1) );\n"
 492 "\n"
 493 "   float d = ( v0.x+v0.y+v0.z+v0.w +\n"
 494 "               v1.x+v1.y+v1.z+v1.w ) * 0.125;\n"
 495 "   \n"
 496 "   float dither = fract(dot(vec2(171.0,231.0),gl_FragCoord.xy)/71.0);\n"
 497 "   float x = d*0.8+length(p)*0.3;\n"
 498 "   x = (floor(x*8.0) + step(dither, fract(x * 8.0))) / 8.0;\n"
 499 "\n"
 500 "   if( x + (uOpacity*2.0-1.0) < 0.5 ) \n"
 501 "      discard;\n"
 502 "\n"
 503 "   vfrag = mix( vec3(x), pal( x ), uColourize );\n"
 504 "\n"
 505 "   if( g_light_preview == 1 ){\n"
 506 "      vfrag = vec3(0.5);\n"
 507 "   }\n"
 508 "\n"
 509 "   vfrag = scene_compute_lighting( vfrag, qnorm, aWorldCo );\n"
 510 "   oColour = vec4( vfrag, 1.0 );\n"
 511 "}\n"
 512 ""},
 513 };
 514
 515 static GLuint _uniform_scene_font_uMdl;
 516 static GLuint _uniform_scene_font_uPv;
 517 static GLuint _uniform_scene_font_uPvmPrev;
 518 static GLuint _uniform_scene_font_uOffset;
 519 static GLuint _uniform_scene_font_uTexGarbage;
 520 static GLuint _uniform_scene_font_uTexMain;
 521 static GLuint _uniform_scene_font_uCamera;
 522 static GLuint _uniform_scene_font_uTime;
 523 static GLuint _uniform_scene_font_uOpacity;
 524 static GLuint _uniform_scene_font_uColourize;
 525 static GLuint _uniform_scene_font_g_world_depth;
 526 static GLuint _uniform_scene_font_uLightsArray;
 527 static GLuint _uniform_scene_font_uLightsIndex;
 528 static void shader_scene_font_uMdl(m4x3f m){
 529    glUniformMatrix4x3fv(_uniform_scene_font_uMdl,1,GL_FALSE,(float*)m);
 530 }
 531 static void shader_scene_font_uPv(m4x4f m){
 532    glUniformMatrix4fv(_uniform_scene_font_uPv,1,GL_FALSE,(float*)m);
 533 }
 534 static void shader_scene_font_uPvmPrev(m4x4f m){
 535    glUniformMatrix4fv(_uniform_scene_font_uPvmPrev,1,GL_FALSE,(float*)m);
 536 }
 537 static void shader_scene_font_uOffset(v4f v){
 538    glUniform4fv(_uniform_scene_font_uOffset,1,v);
 539 }
 540 static void shader_scene_font_uTexGarbage(int i){
 541    glUniform1i(_uniform_scene_font_uTexGarbage,i);
 542 }
 543 static void shader_scene_font_uTexMain(int i){
 544    glUniform1i(_uniform_scene_font_uTexMain,i);
 545 }
 546 static void shader_scene_font_uCamera(v3f v){
 547    glUniform3fv(_uniform_scene_font_uCamera,1,v);
 548 }
 549 static void shader_scene_font_uTime(float f){
 550    glUniform1f(_uniform_scene_font_uTime,f);
 551 }
 552 static void shader_scene_font_uOpacity(float f){
 553    glUniform1f(_uniform_scene_font_uOpacity,f);
 554 }
 555 static void shader_scene_font_uColourize(float f){
 556    glUniform1f(_uniform_scene_font_uColourize,f);
 557 }
 558 static void shader_scene_font_g_world_depth(int i){
 559    glUniform1i(_uniform_scene_font_g_world_depth,i);
 560 }
 561 static void shader_scene_font_register(void){
 562    vg_shader_register( &_shader_scene_font );
 563 }
 564 static void shader_scene_font_use(void){ glUseProgram(_shader_scene_font.id); }
 565 static void shader_scene_font_link(void){
 566    _uniform_scene_font_uMdl = glGetUniformLocation( _shader_scene_font.id, "uMdl" );
 567    _uniform_scene_font_uPv = glGetUniformLocation( _shader_scene_font.id, "uPv" );
 568    _uniform_scene_font_uPvmPrev = glGetUniformLocation( _shader_scene_font.id, "uPvmPrev" );
 569    _uniform_scene_font_uOffset = glGetUniformLocation( _shader_scene_font.id, "uOffset" );
 570    _uniform_scene_font_uTexGarbage = glGetUniformLocation( _shader_scene_font.id, "uTexGarbage" );
 571    _uniform_scene_font_uTexMain = glGetUniformLocation( _shader_scene_font.id, "uTexMain" );
 572    _uniform_scene_font_uCamera = glGetUniformLocation( _shader_scene_font.id, "uCamera" );
 573    _uniform_scene_font_uTime = glGetUniformLocation( _shader_scene_font.id, "uTime" );
 574    _uniform_scene_font_uOpacity = glGetUniformLocation( _shader_scene_font.id, "uOpacity" );
 575    _uniform_scene_font_uColourize = glGetUniformLocation( _shader_scene_font.id, "uColourize" );
 576    _uniform_scene_font_g_world_depth = glGetUniformLocation( _shader_scene_font.id, "g_world_depth" );
 577    _uniform_scene_font_uLightsArray = glGetUniformLocation( _shader_scene_font.id, "uLightsArray" );
 578    _uniform_scene_font_uLightsIndex = glGetUniformLocation( _shader_scene_font.id, "uLightsIndex" );
 579 }
 580 #endif /* SHADER_scene_font_H */