shaders/scoretext.h

   1 #ifndef SHADER_scoretext_H
   2 #define SHADER_scoretext_H
   3 static void shader_scoretext_link(void);
   4 static void shader_scoretext_register(void);
   5 static struct vg_shader _shader_scoretext = {
   6    .name = "scoretext",
   7    .link = shader_scoretext_link,
   8    .vs =
   9 {
  10 .static_src =
  11 "layout (location=0) in vec3 a_co;\n"
  12 "layout (location=1) in vec3 a_norm;\n"
  13 "layout (location=2) in vec2 a_uv;\n"
  14 "layout (location=3) in vec4 a_colour;\n"
  15 "layout (location=4) in vec4 a_weights;\n"
  16 "layout (location=5) in ivec4 a_groups;\n"
  17 "\n"
  18 "#line      2        0 \n"
  19 "#line       1        2 \n"
  20 "const float k_motion_lerp_amount = 0.01;\n"
  21 "\n"
  22 "#line      2        0 \n"
  23 "\n"
  24 "out vec3 aMotionVec0;\n"
  25 "out vec3 aMotionVec1;\n"
  26 "\n"
  27 "void vs_motion_out( vec4 vproj0, vec4 vproj1 )\n"
  28 "{\n"
  29 "   // This magically solves some artifacting errors!\n"
  30 "   //\n"
  31 "   vproj1 = vproj0*(1.0-k_motion_lerp_amount) + vproj1*k_motion_lerp_amount;\n"
  32 "\n"
  33 "   aMotionVec0 = vec3( vproj0.xy, vproj0.w );\n"
  34 "   aMotionVec1 = vec3( vproj1.xy, vproj1.w );\n"
  35 "}\n"
  36 "\n"
  37 "#line      3        0 \n"
  38 "\n"
  39 "uniform mat4x3 uMdl;\n"
  40 "uniform mat4 uPv;\n"
  41 "uniform mat4 uPvmPrev;\n"
  42 "\n"
  43 "uniform vec3 uInfo;\n"
  44 "\n"
  45 "out vec4 aColour;\n"
  46 "out vec2 aUv;\n"
  47 "out vec3 aNorm;\n"
  48 "out vec3 aCo;\n"
  49 "out vec3 aWorldCo;\n"
  50 "\n"
  51 "void main()\n"
  52 "{\n"
  53 "   float w = (a_colour.g * 8.0)-5.5 + fract(uInfo.z+0.5);\n"
  54 "   float c = -cos(w*0.2);\n"
  55 "   float s = -sin(w*0.2);\n"
  56 "   float r = 0.2;\n"
  57 "\n"
  58 "   float w1 = clamp( w*4.0 - a_co.y*10.0, -1.0, 1.0 ) * (3.14159265*0.5);\n"
  59 "   float c1 = cos(w1);\n"
  60 "   float s1 = sin(w1);\n"
  61 "\n"
  62 "   float yoff = step(0.01,fract(uInfo.z))*-0.5;\n"
  63 "\n"
  64 "   mat4x3 mlocal;\n"
  65 "   mlocal[0] = vec3(c1, s1,0.0);\n"
  66 "   mlocal[1] = vec3(-s1,c1,0.0);\n"
  67 "   mlocal[2] = vec3(0.0,0.0,1.0);\n"
  68 "   mlocal[3] = vec3(c*r,uInfo.y*0.875 + s*r,uInfo.x*0.5);\n"
  69 "\n"
  70 "   vec3 local_pos = mlocal * vec4( a_co, 1.0 );\n"
  71 "   vec3 world_pos = uMdl * vec4( local_pos, 1.0 );\n"
  72 "\n"
  73 "   vec4 vproj0 = uPv      * vec4( world_pos, 1.0 );\n"
  74 "   vec4 vproj1 = uPvmPrev * vec4( local_pos, 1.0 );\n"
  75 "\n"
  76 "   // Output\n"
  77 "   vs_motion_out( vproj0, vproj1 );\n"
  78 "\n"
  79 "   gl_Position = vproj0;\n"
  80 "   aColour = a_colour;\n"
  81 "   aUv = a_uv + vec2( floor(uInfo.z+0.5)*(1.0/64.0), yoff );\n"
  82 "   aNorm = mat3(uMdl) * mat3(mlocal) * a_norm;\n"
  83 "   aCo = a_co;\n"
  84 "   aWorldCo = world_pos;\n"
  85 "}\n"
  86 ""},
  87    .fs =
  88 {
  89 .static_src =
  90 "uniform sampler2D uTexGarbage;\n"
  91 "uniform sampler2D uTexGradients;\n"
  92 "uniform vec3 uCamera;\n"
  93 "uniform vec3 uBoard0;\n"
  94 "uniform vec3 uBoard1;\n"
  95 "\n"
  96 "in vec4 aColour;\n"
  97 "in vec2 aUv;\n"
  98 "in vec3 aNorm;\n"
  99 "in vec3 aCo;\n"
 100 "in vec3 aWorldCo;\n"
 101 "\n"
 102 "#line       1        1 \n"
 103 "layout (location = 0) out vec4 oColour;\n"
 104 "\n"
 105 "layout (std140) uniform ub_world_lighting\n"
 106 "{\n"
 107 "   vec4 g_light_colours[3];\n"
 108 "   vec4 g_light_directions[3];\n"
 109 "   vec4 g_ambient_colour;\n"
 110 "\n"
 111 "   vec4 g_water_plane;\n"
 112 "   vec4 g_depth_bounds;\n"
 113 "   float g_water_fog;\n"
 114 "   int g_light_count;\n"
 115 "   int g_light_preview;\n"
 116 "   int g_shadow_samples;\n"
 117 "};\n"
 118 "\n"
 119 "uniform sampler2D g_world_depth;\n"
 120 "\n"
 121 "// Standard diffuse + spec models\n"
 122 "// ==============================\n"
 123 "\n"
 124 "vec3 do_light_diffuse( vec3 vfrag, vec3 wnormal )\n"
 125 "{\n"
 126 "   vec3 vtotal = g_ambient_colour.rgb;\n"
 127 "\n"
 128 "   for( int i=0; i<g_light_count; i++ )\n"
 129 "   {\n"
 130 "      vec3 vcolour = g_light_colours[i].rgb;\n"
 131 "      vec3 vdir = g_light_directions[i].xyz;\n"
 132 "\n"
 133 "      float flight = max(dot( vdir, wnormal )*0.75+0.25,0.0);\n"
 134 "      vtotal += vcolour*flight;\n"
 135 "   }\n"
 136 "\n"
 137 "   return vfrag * vtotal;\n"
 138 "}\n"
 139 "\n"
 140 "vec3 do_light_spec( vec3 vfrag, vec3 wnormal, vec3 halfview, float fintensity )\n"
 141 "{\n"
 142 "   vec3 vcolour = g_light_colours[0].rgb;\n"
 143 "   vec3 vdir = g_light_directions[0].xyz;\n"
 144 "\n"
 145 "   vec3 specdir = reflect( -vdir, wnormal );\n"
 146 "   float spec = pow(max(dot( halfview, specdir ), 0.0), 10.0);\n"
 147 "   return vfrag + vcolour*spec*fintensity;\n"
 148 "}\n"
 149 "\n"
 150 "float world_depth_sample( vec3 pos )\n"
 151 "{\n"
 152 "   vec2 depth_coord = (pos.xz - g_depth_bounds.xy) * g_depth_bounds.zw; \n"
 153 "   return texture( g_world_depth, depth_coord ).r;\n"
 154 "}\n"
 155 "\n"
 156 "float shadow_sample( vec3 vdir )\n"
 157 "{\n"
 158 "   vec3 sample_pos = aWorldCo + vdir;\n"
 159 "   float height_sample = world_depth_sample( sample_pos );\n"
 160 "\n"
 161 "   float fdelta = height_sample - sample_pos.y;\n"
 162 "   return clamp( fdelta, 0.1, 0.2 )-0.1;\n"
 163 "}\n"
 164 "\n"
 165 "vec3 do_light_shadowing_old( vec3 vfrag )\n"
 166 "{\n"
 167 "   float faccum = 0.0;\n"
 168 "   faccum += shadow_sample( vec3( 0.0, 0.5, 0.0 ));\n"
 169 "   faccum += shadow_sample( vec3( 2.0, 0.3, 0.0 ));\n"
 170 "   faccum += shadow_sample( vec3( 3.0, 1.0, 0.0 ));\n"
 171 "   faccum += shadow_sample( vec3( 5.0, 1.0, 0.0 ));\n"
 172 "   faccum += shadow_sample( vec3( 0.0, 0.5, 0.0 )*1.5);\n"
 173 "   faccum += shadow_sample( vec3( 2.0, 0.3, 0.0 )*1.5);\n"
 174 "   faccum += shadow_sample( vec3( 3.0, 1.0, 0.0 )*1.5);\n"
 175 "   faccum += shadow_sample( vec3( 5.0, 1.0, 0.0 )*1.5);\n"
 176 "   return mix( vfrag, g_ambient_colour.rgb, faccum );\n"
 177 "}\n"
 178 "\n"
 179 "// FIXME\n"
 180 "float sdLine( vec3 p, vec3 a, vec3 b )\n"
 181 "{\n"
 182 "  vec3 pa = p - a;\n"
 183 "  vec3 ba = b - a;\n"
 184 "\n"
 185 "  float h = clamp( dot(pa,ba)/dot(ba,ba), 0.0, 1.0 );\n"
 186 "  return length( pa - ba*h );\n"
 187 "}\n"
 188 "\n"
 189 "vec3 do_light_shadowing( vec3 vfrag )\n"
 190 "{\n"
 191 "   if( g_shadow_samples == 0 )\n"
 192 "   {\n"
 193 "      return vfrag;\n"
 194 "   }\n"
 195 "\n"
 196 "   float fspread = g_light_colours[0].w;\n"
 197 "   vec3  vdir = g_light_directions[0].xyz;\n"
 198 "   float flength = g_light_directions[0].w;\n"
 199 "\n"
 200 "   float famt = 0.0;\n"
 201 "   famt+=shadow_sample((vdir+vec3(-0.563, 0.550, 0.307)*fspread)*flength*0.1);\n"
 202 "   famt+=shadow_sample((vdir+vec3( 0.808, 0.686, 0.346)*fspread)*flength*0.2);\n"
 203 "   famt+=shadow_sample((vdir+vec3( 0.787, 0.074,-0.065)*fspread)*flength*0.3);\n"
 204 "   famt+=shadow_sample((vdir+vec3(-0.593, 0.071,-0.425)*fspread)*flength*0.4);\n"
 205 "   famt+=shadow_sample((vdir+vec3(-0.790,-0.933,-0.875)*fspread)*flength*0.5);\n"
 206 "   famt+=shadow_sample((vdir+vec3( 0.807,-0.690, 0.472)*fspread)*flength*0.6);\n"
 207 "   famt+=shadow_sample((vdir+vec3( 0.522,-0.379, 0.350)*fspread)*flength*0.7);\n"
 208 "   famt+=shadow_sample((vdir+vec3( 0.483, 0.201, 0.306)*fspread)*flength*0.8);\n"
 209 "\n"
 210 "   // player shadow\n"
 211 "   float dist_to_player = max( 0.0, sdLine( aWorldCo, uBoard0, uBoard1 )-0.03 );\n"
 212 "   float player_shadow = max( 1.0-dist_to_player*1.7, 0.0 );\n"
 213 "   player_shadow *= player_shadow*player_shadow*player_shadow;\n"
 214 "\n"
 215 "   famt = max( player_shadow*0.6, famt );\n"
 216 "   return mix( vfrag, g_ambient_colour.rgb, famt );\n"
 217 "}\n"
 218 "\n"
 219 "vec3 apply_fog( vec3 vfrag, float fdist )\n"
 220 "{\n"
 221 "   float dist = pow(fdist*0.0008,1.2);\n"
 222 "   return mix( vfrag, vec3(0.55,0.76,1.0), min( 1.0, dist ) );\n"
 223 "}\n"
 224 "\n"
 225 "#line     14        0 \n"
 226 "#line       1        2 \n"
 227 "const float k_motion_lerp_amount = 0.01;\n"
 228 "\n"
 229 "#line      2        0 \n"
 230 "\n"
 231 "layout (location = 1) out vec2 oMotionVec;\n"
 232 "\n"
 233 "in vec3 aMotionVec0;\n"
 234 "in vec3 aMotionVec1;\n"
 235 "\n"
 236 "void compute_motion_vectors()\n"
 237 "{\n"
 238 "   // Write motion vectors\n"
 239 "   vec2 vmotion0 = aMotionVec0.xy / aMotionVec0.z;\n"
 240 "   vec2 vmotion1 = aMotionVec1.xy / aMotionVec1.z;\n"
 241 "\n"
 242 "   oMotionVec = (vmotion1-vmotion0) * (1.0/k_motion_lerp_amount);\n"
 243 "}\n"
 244 "\n"
 245 "#line     15        0 \n"
 246 "\n"
 247 "void main()\n"
 248 "{\n"
 249 "   compute_motion_vectors();\n"
 250 "\n"
 251 "   vec3 vfrag = vec3(0.5,0.5,0.5);\n"
 252 "\n"
 253 "   // ws modulation\n"
 254 "   vec4 wgarbage = vec4(0.5,0.5,0.5,1.0);//texture( uTexGarbage, aCo.xz * 0.160 );\n"
 255 "   \n"
 256 "   // Creating normal patches\n"
 257 "   vec3 modnorm = (wgarbage.rgb-0.4) * 1.4;\n"
 258 "   vec3 qnorm = normalize(floor(aNorm*4.0+modnorm)*0.25) + vec3(0.001,0.0,0.0);\n"
 259 "\n"
 260 "   vec3 tangent0 = normalize(cross(qnorm,vec3(0.0,1.0,0.0)));\n"
 261 "   vec3 tangent1 = cross(qnorm,tangent0);\n"
 262 "   vec2 uvdiffuse = vec2( dot(tangent0,aCo), dot(tangent1,aCo) ) * 0.160;\n"
 263 "   \n"
 264 "   // Patch local noise\n"
 265 "   vec4 rgarbage = texture( uTexGarbage, uvdiffuse );\n"
 266 "\n"
 267 "   // Colour blending\n"
 268 "   float fblendclip = step(0.380,aColour.r + (rgarbage.r-0.5)*-1.740)*0.320;\n"
 269 "   vec2 uvgradients = aUv + vec2( fblendclip, 0.0 );\n"
 270 "\n"
 271 "   vfrag = texture( uTexGradients, uvgradients ).rgb;\n"
 272 "   vfrag -= rgarbage.a*0.04;\n"
 273 "\n"
 274 "   if( g_light_preview == 1 )\n"
 275 "   {\n"
 276 "      vfrag = vec3(0.5);\n"
 277 "   }\n"
 278 "\n"
 279 "   // Lighting\n"
 280 "   vec3 halfview = uCamera - aWorldCo;\n"
 281 "   float fdist = length( halfview );\n"
 282 "   halfview /= fdist;\n"
 283 "\n"
 284 "   vfrag = do_light_diffuse( vfrag, qnorm );\n"
 285 "   vfrag = do_light_spec( vfrag, qnorm, halfview, 0.1 );\n"
 286 "   vfrag = do_light_shadowing( vfrag );\n"
 287 "   vfrag = apply_fog( vfrag, fdist );\n"
 288 "\n"
 289 "   oColour = vec4(vfrag, 1.0 );\n"
 290 "}\n"
 291 ""},
 292 };
 293
 294 static GLuint _uniform_scoretext_uMdl;
 295 static GLuint _uniform_scoretext_uPv;
 296 static GLuint _uniform_scoretext_uPvmPrev;
 297 static GLuint _uniform_scoretext_uInfo;
 298 static GLuint _uniform_scoretext_uTexGarbage;
 299 static GLuint _uniform_scoretext_uTexGradients;
 300 static GLuint _uniform_scoretext_uCamera;
 301 static GLuint _uniform_scoretext_uBoard0;
 302 static GLuint _uniform_scoretext_uBoard1;
 303 static GLuint _uniform_scoretext_g_world_depth;
 304 static void shader_scoretext_uMdl(m4x3f m){
 305    glUniformMatrix4x3fv(_uniform_scoretext_uMdl,1,GL_FALSE,(float*)m);
 306 }
 307 static void shader_scoretext_uPv(m4x4f m){
 308    glUniformMatrix4fv(_uniform_scoretext_uPv,1,GL_FALSE,(float*)m);
 309 }
 310 static void shader_scoretext_uPvmPrev(m4x4f m){
 311    glUniformMatrix4fv(_uniform_scoretext_uPvmPrev,1,GL_FALSE,(float*)m);
 312 }
 313 static void shader_scoretext_uInfo(v3f v){
 314    glUniform3fv(_uniform_scoretext_uInfo,1,v);
 315 }
 316 static void shader_scoretext_uTexGarbage(int i){
 317    glUniform1i(_uniform_scoretext_uTexGarbage,i);
 318 }
 319 static void shader_scoretext_uTexGradients(int i){
 320    glUniform1i(_uniform_scoretext_uTexGradients,i);
 321 }
 322 static void shader_scoretext_uCamera(v3f v){
 323    glUniform3fv(_uniform_scoretext_uCamera,1,v);
 324 }
 325 static void shader_scoretext_uBoard0(v3f v){
 326    glUniform3fv(_uniform_scoretext_uBoard0,1,v);
 327 }
 328 static void shader_scoretext_uBoard1(v3f v){
 329    glUniform3fv(_uniform_scoretext_uBoard1,1,v);
 330 }
 331 static void shader_scoretext_g_world_depth(int i){
 332    glUniform1i(_uniform_scoretext_g_world_depth,i);
 333 }
 334 static void shader_scoretext_register(void){
 335    vg_shader_register( &_shader_scoretext );
 336 }
 337 static void shader_scoretext_use(void){ glUseProgram(_shader_scoretext.id); }
 338 static void shader_scoretext_link(void){
 339    _uniform_scoretext_uMdl = glGetUniformLocation( _shader_scoretext.id, "uMdl" );
 340    _uniform_scoretext_uPv = glGetUniformLocation( _shader_scoretext.id, "uPv" );
 341    _uniform_scoretext_uPvmPrev = glGetUniformLocation( _shader_scoretext.id, "uPvmPrev" );
 342    _uniform_scoretext_uInfo = glGetUniformLocation( _shader_scoretext.id, "uInfo" );
 343    _uniform_scoretext_uTexGarbage = glGetUniformLocation( _shader_scoretext.id, "uTexGarbage" );
 344    _uniform_scoretext_uTexGradients = glGetUniformLocation( _shader_scoretext.id, "uTexGradients" );
 345    _uniform_scoretext_uCamera = glGetUniformLocation( _shader_scoretext.id, "uCamera" );
 346    _uniform_scoretext_uBoard0 = glGetUniformLocation( _shader_scoretext.id, "uBoard0" );
 347    _uniform_scoretext_uBoard1 = glGetUniformLocation( _shader_scoretext.id, "uBoard1" );
 348    _uniform_scoretext_g_world_depth = glGetUniformLocation( _shader_scoretext.id, "g_world_depth" );
 349 }
 350 #endif /* SHADER_scoretext_H */