API tools faq
paste
Advertisement
Guest User

Untitled

a guest
Aug 9th, 2020
473
0
Never
Add comment
Not a member of Pastebin yet? Sign Up, it unlocks many cool features!
C++ 44.47 KB | None | 0 0
raw download clone embed print report
  1. #version 300 es
  2.  
  3. #define varying in
  4. out highp vec4 pc_fragColor;
  5. #define gl_FragColor pc_fragColor
  6. #define gl_FragDepthEXT gl_FragDepth
  7. #define texture2D texture
  8. #define textureCube texture
  9. #define texture2DProj textureProj
  10. #define texture2DLodEXT textureLod
  11. #define texture2DProjLodEXT textureProjLod
  12. #define textureCubeLodEXT textureLod
  13. #define texture2DGradEXT textureGrad
  14. #define texture2DProjGradEXT textureProjGrad
  15. #define textureCubeGradEXT textureGrad
  16. precision highp float;
  17. precision highp int;
  18. #define HIGH_PRECISION
  19. #define SHADER_NAME MeshPhongMaterial
  20. #define GAMMA_FACTOR 2
  21. uniform mat4 viewMatrix;
  22. uniform vec3 cameraPosition;
  23. uniform bool isOrthographic;
  24.  
  25. vec4 LinearToLinear( in vec4 value ) {
  26.     return value;
  27. }
  28. vec4 GammaToLinear( in vec4 value, in float gammaFactor ) {
  29.     return vec4( pow( value.rgb, vec3( gammaFactor ) ), value.a );
  30. }
  31. vec4 LinearToGamma( in vec4 value, in float gammaFactor ) {
  32.     return vec4( pow( value.rgb, vec3( 1.0 / gammaFactor ) ), value.a );
  33. }
  34. vec4 sRGBToLinear( in vec4 value ) {
  35.     return vec4( mix( pow( value.rgb * 0.9478672986 + vec3( 0.0521327014 ), vec3( 2.4 ) ), value.rgb * 0.0773993808, vec3( lessThanEqual( value.rgb, vec3( 0.04045 ) ) ) ), value.a );
  36. }
  37. vec4 LinearTosRGB( in vec4 value ) {
  38.     return vec4( mix( pow( value.rgb, vec3( 0.41666 ) ) * 1.055 - vec3( 0.055 ), value.rgb * 12.92, vec3( lessThanEqual( value.rgb, vec3( 0.0031308 ) ) ) ), value.a );
  39. }
  40. vec4 RGBEToLinear( in vec4 value ) {
  41.     return vec4( value.rgb * exp2( value.a * 255.0 - 128.0 ), 1.0 );
  42. }
  43. vec4 LinearToRGBE( in vec4 value ) {
  44.     float maxComponent = max( max( value.r, value.g ), value.b );
  45.     float fExp = clamp( ceil( log2( maxComponent ) ), -128.0, 127.0 );
  46.     return vec4( value.rgb / exp2( fExp ), ( fExp + 128.0 ) / 255.0 );
  47. }
  48. vec4 RGBMToLinear( in vec4 value, in float maxRange ) {
  49.     return vec4( value.rgb * value.a * maxRange, 1.0 );
  50. }
  51. vec4 LinearToRGBM( in vec4 value, in float maxRange ) {
  52.     float maxRGB = max( value.r, max( value.g, value.b ) );
  53.     float M = clamp( maxRGB / maxRange, 0.0, 1.0 );
  54.     M = ceil( M * 255.0 ) / 255.0;
  55.     return vec4( value.rgb / ( M * maxRange ), M );
  56. }
  57. vec4 RGBDToLinear( in vec4 value, in float maxRange ) {
  58.     return vec4( value.rgb * ( ( maxRange / 255.0 ) / value.a ), 1.0 );
  59. }
  60. vec4 LinearToRGBD( in vec4 value, in float maxRange ) {
  61.     float maxRGB = max( value.r, max( value.g, value.b ) );
  62.     float D = max( maxRange / maxRGB, 1.0 );
  63.     D = clamp( floor( D ) / 255.0, 0.0, 1.0 );
  64.     return vec4( value.rgb * ( D * ( 255.0 / maxRange ) ), D );
  65. }
  66. const mat3 cLogLuvM = mat3( 0.2209, 0.3390, 0.4184, 0.1138, 0.6780, 0.7319, 0.0102, 0.1130, 0.2969 );
  67. vec4 LinearToLogLuv( in vec4 value )  {
  68.     vec3 Xp_Y_XYZp = cLogLuvM * value.rgb;
  69.     Xp_Y_XYZp = max( Xp_Y_XYZp, vec3( 1e-6, 1e-6, 1e-6 ) );
  70.     vec4 vResult;
  71.     vResult.xy = Xp_Y_XYZp.xy / Xp_Y_XYZp.z;
  72.     float Le = 2.0 * log2(Xp_Y_XYZp.y) + 127.0;
  73.     vResult.w = fract( Le );
  74.     vResult.z = ( Le - ( floor( vResult.w * 255.0 ) ) / 255.0 ) / 255.0;
  75.     return vResult;
  76. }
  77. const mat3 cLogLuvInverseM = mat3( 6.0014, -2.7008, -1.7996, -1.3320, 3.1029, -5.7721, 0.3008, -1.0882, 5.6268 );
  78. vec4 LogLuvToLinear( in vec4 value ) {
  79.     float Le = value.z * 255.0 + value.w;
  80.     vec3 Xp_Y_XYZp;
  81.     Xp_Y_XYZp.y = exp2( ( Le - 127.0 ) / 2.0 );
  82.     Xp_Y_XYZp.z = Xp_Y_XYZp.y / value.y;
  83.     Xp_Y_XYZp.x = value.x * Xp_Y_XYZp.z;
  84.     vec3 vRGB = cLogLuvInverseM * Xp_Y_XYZp.rgb;
  85.     return vec4( max( vRGB, 0.0 ), 1.0 );
  86. }
  87. vec4 linearToOutputTexel( vec4 value ) { return LinearToLinear( value ); }
  88.  
  89. #define PHONG
  90. uniform vec3 diffuse;
  91. uniform vec3 emissive;
  92. uniform vec3 specular;
  93. uniform float shininess;
  94. uniform float opacity;
  95. #define PI 3.141592653589793
  96. #define PI2 6.283185307179586
  97. #define PI_HALF 1.5707963267948966
  98. #define RECIPROCAL_PI 0.3183098861837907
  99. #define RECIPROCAL_PI2 0.15915494309189535
  100. #define EPSILON 1e-6
  101. #ifndef saturate
  102. #define saturate(a) clamp( a, 0.0, 1.0 )
  103. #endif
  104. #define whiteComplement(a) ( 1.0 - saturate( a ) )
  105. float pow2( const in float x ) { return x*x; }
  106. float pow3( const in float x ) { return x*x*x; }
  107. float pow4( const in float x ) { float x2 = x*x; return x2*x2; }
  108. float average( const in vec3 color ) { return dot( color, vec3( 0.3333 ) ); }
  109. highp float rand( const in vec2 uv ) {
  110.     const highp float a = 12.9898, b = 78.233, c = 43758.5453;
  111.     highp float dt = dot( uv.xy, vec2( a,b ) ), sn = mod( dt, PI );
  112.     return fract(sin(sn) * c);
  113. }
  114. #ifdef HIGH_PRECISION
  115.     float precisionSafeLength( vec3 v ) { return length( v ); }
  116. #else
  117.     float max3( vec3 v ) { return max( max( v.x, v.y ), v.z ); }
  118.     float precisionSafeLength( vec3 v ) {
  119.         float maxComponent = max3( abs( v ) );
  120.         return length( v / maxComponent ) * maxComponent;
  121.     }
  122. #endif
  123. struct IncidentLight {
  124.     vec3 color;
  125.     vec3 direction;
  126.     bool visible;
  127. };
  128. struct ReflectedLight {
  129.     vec3 directDiffuse;
  130.     vec3 directSpecular;
  131.     vec3 indirectDiffuse;
  132.     vec3 indirectSpecular;
  133. };
  134. struct GeometricContext {
  135.     vec3 position;
  136.     vec3 normal;
  137.     vec3 viewDir;
  138. #ifdef CLEARCOAT
  139.     vec3 clearcoatNormal;
  140. #endif
  141. };
  142. vec3 transformDirection( in vec3 dir, in mat4 matrix ) {
  143.     return normalize( ( matrix * vec4( dir, 0.0 ) ).xyz );
  144. }
  145. vec3 inverseTransformDirection( in vec3 dir, in mat4 matrix ) {
  146.     return normalize( ( vec4( dir, 0.0 ) * matrix ).xyz );
  147. }
  148. vec3 projectOnPlane(in vec3 point, in vec3 pointOnPlane, in vec3 planeNormal ) {
  149.     float distance = dot( planeNormal, point - pointOnPlane );
  150.     return - distance * planeNormal + point;
  151. }
  152. float sideOfPlane( in vec3 point, in vec3 pointOnPlane, in vec3 planeNormal ) {
  153.     return sign( dot( point - pointOnPlane, planeNormal ) );
  154. }
  155. vec3 linePlaneIntersect( in vec3 pointOnLine, in vec3 lineDirection, in vec3 pointOnPlane, in vec3 planeNormal ) {
  156.     return lineDirection * ( dot( planeNormal, pointOnPlane - pointOnLine ) / dot( planeNormal, lineDirection ) ) + pointOnLine;
  157. }
  158. mat3 transposeMat3( const in mat3 m ) {
  159.     mat3 tmp;
  160.     tmp[ 0 ] = vec3( m[ 0 ].x, m[ 1 ].x, m[ 2 ].x );
  161.     tmp[ 1 ] = vec3( m[ 0 ].y, m[ 1 ].y, m[ 2 ].y );
  162.     tmp[ 2 ] = vec3( m[ 0 ].z, m[ 1 ].z, m[ 2 ].z );
  163.     return tmp;
  164. }
  165. float linearToRelativeLuminance( const in vec3 color ) {
  166.     vec3 weights = vec3( 0.2126, 0.7152, 0.0722 );
  167.     return dot( weights, color.rgb );
  168. }
  169. bool isPerspectiveMatrix( mat4 m ) {
  170.     return m[ 2 ][ 3 ] == - 1.0;
  171. }
  172. vec2 equirectUv( in vec3 dir ) {
  173.     float u = atan( dir.z, dir.x ) * RECIPROCAL_PI2 + 0.5;
  174.     float v = asin( clamp( dir.y, - 1.0, 1.0 ) ) * RECIPROCAL_PI + 0.5;
  175.     return vec2( u, v );
  176. }
  177. vec3 packNormalToRGB( const in vec3 normal ) {
  178.     return normalize( normal ) * 0.5 + 0.5;
  179. }
  180. vec3 unpackRGBToNormal( const in vec3 rgb ) {
  181.     return 2.0 * rgb.xyz - 1.0;
  182. }
  183. const float PackUpscale = 256. / 255.;const float UnpackDownscale = 255. / 256.;
  184. const vec3 PackFactors = vec3( 256. * 256. * 256., 256. * 256.,  256. );
  185. const vec4 UnpackFactors = UnpackDownscale / vec4( PackFactors, 1. );
  186. const float ShiftRight8 = 1. / 256.;
  187. vec4 packDepthToRGBA( const in float v ) {
  188.     vec4 r = vec4( fract( v * PackFactors ), v );
  189.     r.yzw -= r.xyz * ShiftRight8;   return r * PackUpscale;
  190. }
  191. float unpackRGBAToDepth( const in vec4 v ) {
  192.     return dot( v, UnpackFactors );
  193. }
  194. vec4 pack2HalfToRGBA( vec2 v ) {
  195.     vec4 r = vec4( v.x, fract( v.x * 255.0 ), v.y, fract( v.y * 255.0 ));
  196.     return vec4( r.x - r.y / 255.0, r.y, r.z - r.w / 255.0, r.w);
  197. }
  198. vec2 unpackRGBATo2Half( vec4 v ) {
  199.     return vec2( v.x + ( v.y / 255.0 ), v.z + ( v.w / 255.0 ) );
  200. }
  201. float viewZToOrthographicDepth( const in float viewZ, const in float near, const in float far ) {
  202.     return ( viewZ + near ) / ( near - far );
  203. }
  204. float orthographicDepthToViewZ( const in float linearClipZ, const in float near, const in float far ) {
  205.     return linearClipZ * ( near - far ) - near;
  206. }
  207. float viewZToPerspectiveDepth( const in float viewZ, const in float near, const in float far ) {
  208.     return (( near + viewZ ) * far ) / (( far - near ) * viewZ );
  209. }
  210. float perspectiveDepthToViewZ( const in float invClipZ, const in float near, const in float far ) {
  211.     return ( near * far ) / ( ( far - near ) * invClipZ - far );
  212. }
  213. #ifdef DITHERING
  214.     vec3 dithering( vec3 color ) {
  215.         float grid_position = rand( gl_FragCoord.xy );
  216.         vec3 dither_shift_RGB = vec3( 0.25 / 255.0, -0.25 / 255.0, 0.25 / 255.0 );
  217.         dither_shift_RGB = mix( 2.0 * dither_shift_RGB, -2.0 * dither_shift_RGB, grid_position );
  218.         return color + dither_shift_RGB;
  219.     }
  220. #endif
  221. #ifdef USE_COLOR
  222.     varying vec3 vColor;
  223. #endif
  224. #if ( defined( USE_UV ) && ! defined( UVS_VERTEX_ONLY ) )
  225.     varying vec2 vUv;
  226. #endif
  227. #if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )
  228.     varying vec2 vUv2;
  229. #endif
  230. #ifdef USE_MAP
  231.     uniform sampler2D map;
  232. #endif
  233. #ifdef USE_ALPHAMAP
  234.     uniform sampler2D alphaMap;
  235. #endif
  236. #ifdef USE_AOMAP
  237.     uniform sampler2D aoMap;
  238.     uniform float aoMapIntensity;
  239. #endif
  240. #ifdef USE_LIGHTMAP
  241.     uniform sampler2D lightMap;
  242.     uniform float lightMapIntensity;
  243. #endif
  244. #ifdef USE_EMISSIVEMAP
  245.     uniform sampler2D emissiveMap;
  246. #endif
  247. #ifdef USE_ENVMAP
  248.     uniform float envMapIntensity;
  249.     uniform float flipEnvMap;
  250.     uniform int maxMipLevel;
  251.     #ifdef ENVMAP_TYPE_CUBE
  252.         uniform samplerCube envMap;
  253.     #else
  254.         uniform sampler2D envMap;
  255.     #endif
  256.    
  257. #endif
  258. #ifdef USE_ENVMAP
  259.     uniform float reflectivity;
  260.     #if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG )
  261.         #define ENV_WORLDPOS
  262.     #endif
  263.     #ifdef ENV_WORLDPOS
  264.         varying vec3 vWorldPosition;
  265.         uniform float refractionRatio;
  266.     #else
  267.         varying vec3 vReflect;
  268.     #endif
  269. #endif
  270. #ifdef ENVMAP_TYPE_CUBE_UV
  271. #define cubeUV_maxMipLevel 8.0
  272. #define cubeUV_minMipLevel 4.0
  273. #define cubeUV_maxTileSize 256.0
  274. #define cubeUV_minTileSize 16.0
  275. float getFace(vec3 direction) {
  276.     vec3 absDirection = abs(direction);
  277.     float face = -1.0;
  278.     if (absDirection.x > absDirection.z) {
  279.       if (absDirection.x > absDirection.y)
  280.         face = direction.x > 0.0 ? 0.0 : 3.0;
  281.       else
  282.         face = direction.y > 0.0 ? 1.0 : 4.0;
  283.     } else {
  284.       if (absDirection.z > absDirection.y)
  285.         face = direction.z > 0.0 ? 2.0 : 5.0;
  286.       else
  287.         face = direction.y > 0.0 ? 1.0 : 4.0;
  288.     }
  289.     return face;
  290. }
  291. vec2 getUV(vec3 direction, float face) {
  292.     vec2 uv;
  293.     if (face == 0.0) {
  294.       uv = vec2(direction.z, direction.y) / abs(direction.x);    } else if (face == 1.0) {
  295.       uv = vec2(-direction.x, -direction.z) / abs(direction.y);    } else if (face == 2.0) {
  296.       uv = vec2(-direction.x, direction.y) / abs(direction.z);    } else if (face == 3.0) {
  297.       uv = vec2(-direction.z, direction.y) / abs(direction.x);    } else if (face == 4.0) {
  298.       uv = vec2(-direction.x, direction.z) / abs(direction.y);    } else {
  299.       uv = vec2(direction.x, direction.y) / abs(direction.z);    }
  300.     return 0.5 * (uv + 1.0);
  301. }
  302. vec3 bilinearCubeUV(sampler2D envMap, vec3 direction, float mipInt) {
  303.   float face = getFace(direction);
  304.   float filterInt = max(cubeUV_minMipLevel - mipInt, 0.0);
  305.   mipInt = max(mipInt, cubeUV_minMipLevel);
  306.   float faceSize = exp2(mipInt);
  307.   float texelSize = 1.0 / (3.0 * cubeUV_maxTileSize);
  308.   vec2 uv = getUV(direction, face) * (faceSize - 1.0);
  309.   vec2 f = fract(uv);
  310.   uv += 0.5 - f;
  311.   if (face > 2.0) {
  312.     uv.y += faceSize;
  313.     face -= 3.0;
  314.   }
  315.   uv.x += face * faceSize;
  316.   if(mipInt < cubeUV_maxMipLevel){
  317.     uv.y += 2.0 * cubeUV_maxTileSize;
  318.   }
  319.   uv.y += filterInt * 2.0 * cubeUV_minTileSize;
  320.   uv.x += 3.0 * max(0.0, cubeUV_maxTileSize - 2.0 * faceSize);
  321.   uv *= texelSize;
  322.   vec3 tl = envMapTexelToLinear(texture2D(envMap, uv)).rgb;
  323.   uv.x += texelSize;
  324.   vec3 tr = envMapTexelToLinear(texture2D(envMap, uv)).rgb;
  325.   uv.y += texelSize;
  326.   vec3 br = envMapTexelToLinear(texture2D(envMap, uv)).rgb;
  327.   uv.x -= texelSize;
  328.   vec3 bl = envMapTexelToLinear(texture2D(envMap, uv)).rgb;
  329.   vec3 tm = mix(tl, tr, f.x);
  330.   vec3 bm = mix(bl, br, f.x);
  331.   return mix(tm, bm, f.y);
  332. }
  333. #define r0 1.0
  334. #define v0 0.339
  335. #define m0 -2.0
  336. #define r1 0.8
  337. #define v1 0.276
  338. #define m1 -1.0
  339. #define r4 0.4
  340. #define v4 0.046
  341. #define m4 2.0
  342. #define r5 0.305
  343. #define v5 0.016
  344. #define m5 3.0
  345. #define r6 0.21
  346. #define v6 0.0038
  347. #define m6 4.0
  348. float roughnessToMip(float roughness) {
  349.   float mip = 0.0;
  350.   if (roughness >= r1) {
  351.     mip = (r0 - roughness) * (m1 - m0) / (r0 - r1) + m0;
  352.   } else if (roughness >= r4) {
  353.     mip = (r1 - roughness) * (m4 - m1) / (r1 - r4) + m1;
  354.   } else if (roughness >= r5) {
  355.     mip = (r4 - roughness) * (m5 - m4) / (r4 - r5) + m4;
  356.   } else if (roughness >= r6) {
  357.     mip = (r5 - roughness) * (m6 - m5) / (r5 - r6) + m5;
  358.   } else {
  359.     mip = -2.0 * log2(1.16 * roughness);  }
  360.   return mip;
  361. }
  362. vec4 textureCubeUV(sampler2D envMap, vec3 sampleDir, float roughness) {
  363.   float mip = clamp(roughnessToMip(roughness), m0, cubeUV_maxMipLevel);
  364.   float mipF = fract(mip);
  365.   float mipInt = floor(mip);
  366.   vec3 color0 = bilinearCubeUV(envMap, sampleDir, mipInt);
  367.   if (mipF == 0.0) {
  368.     return vec4(color0, 1.0);
  369.   } else {
  370.     vec3 color1 = bilinearCubeUV(envMap, sampleDir, mipInt + 1.0);
  371.     return vec4(mix(color0, color1, mipF), 1.0);
  372.   }
  373. }
  374. #endif
  375. #ifdef USE_FOG
  376.     uniform vec3 fogColor;
  377.     varying float fogDepth;
  378.     #ifdef FOG_EXP2
  379.         uniform float fogDensity;
  380.     #else
  381.         uniform float fogNear;
  382.         uniform float fogFar;
  383.     #endif
  384. #endif
  385. vec2 integrateSpecularBRDF( const in float dotNV, const in float roughness ) {
  386.     const vec4 c0 = vec4( - 1, - 0.0275, - 0.572, 0.022 );
  387.     const vec4 c1 = vec4( 1, 0.0425, 1.04, - 0.04 );
  388.     vec4 r = roughness * c0 + c1;
  389.     float a004 = min( r.x * r.x, exp2( - 9.28 * dotNV ) ) * r.x + r.y;
  390.     return vec2( -1.04, 1.04 ) * a004 + r.zw;
  391. }
  392. float punctualLightIntensityToIrradianceFactor( const in float lightDistance, const in float cutoffDistance, const in float decayExponent ) {
  393. #if defined ( PHYSICALLY_CORRECT_LIGHTS )
  394.     float distanceFalloff = 1.0 / max( pow( lightDistance, decayExponent ), 0.01 );
  395.     if( cutoffDistance > 0.0 ) {
  396.         distanceFalloff *= pow2( saturate( 1.0 - pow4( lightDistance / cutoffDistance ) ) );
  397.     }
  398.     return distanceFalloff;
  399. #else
  400.     if( cutoffDistance > 0.0 && decayExponent > 0.0 ) {
  401.         return pow( saturate( -lightDistance / cutoffDistance + 1.0 ), decayExponent );
  402.     }
  403.     return 1.0;
  404. #endif
  405. }
  406. vec3 BRDF_Diffuse_Lambert( const in vec3 diffuseColor ) {
  407.     return RECIPROCAL_PI * diffuseColor;
  408. }
  409. vec3 F_Schlick( const in vec3 specularColor, const in float dotLH ) {
  410.     float fresnel = exp2( ( -5.55473 * dotLH - 6.98316 ) * dotLH );
  411.     return ( 1.0 - specularColor ) * fresnel + specularColor;
  412. }
  413. vec3 F_Schlick_RoughnessDependent( const in vec3 F0, const in float dotNV, const in float roughness ) {
  414.     float fresnel = exp2( ( -5.55473 * dotNV - 6.98316 ) * dotNV );
  415.     vec3 Fr = max( vec3( 1.0 - roughness ), F0 ) - F0;
  416.     return Fr * fresnel + F0;
  417. }
  418. float G_GGX_Smith( const in float alpha, const in float dotNL, const in float dotNV ) {
  419.     float a2 = pow2( alpha );
  420.     float gl = dotNL + sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNL ) );
  421.     float gv = dotNV + sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNV ) );
  422.     return 1.0 / ( gl * gv );
  423. }
  424. float G_GGX_SmithCorrelated( const in float alpha, const in float dotNL, const in float dotNV ) {
  425.     float a2 = pow2( alpha );
  426.     float gv = dotNL * sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNV ) );
  427.     float gl = dotNV * sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNL ) );
  428.     return 0.5 / max( gv + gl, EPSILON );
  429. }
  430. float D_GGX( const in float alpha, const in float dotNH ) {
  431.     float a2 = pow2( alpha );
  432.     float denom = pow2( dotNH ) * ( a2 - 1.0 ) + 1.0;
  433.     return RECIPROCAL_PI * a2 / pow2( denom );
  434. }
  435. vec3 BRDF_Specular_GGX( const in IncidentLight incidentLight, const in vec3 viewDir, const in vec3 normal, const in vec3 specularColor, const in float roughness ) {
  436.     float alpha = pow2( roughness );
  437.     vec3 halfDir = normalize( incidentLight.direction + viewDir );
  438.     float dotNL = saturate( dot( normal, incidentLight.direction ) );
  439.     float dotNV = saturate( dot( normal, viewDir ) );
  440.     float dotNH = saturate( dot( normal, halfDir ) );
  441.     float dotLH = saturate( dot( incidentLight.direction, halfDir ) );
  442.     vec3 F = F_Schlick( specularColor, dotLH );
  443.     float G = G_GGX_SmithCorrelated( alpha, dotNL, dotNV );
  444.     float D = D_GGX( alpha, dotNH );
  445.     return F * ( G * D );
  446. }
  447. vec2 LTC_Uv( const in vec3 N, const in vec3 V, const in float roughness ) {
  448.     const float LUT_SIZE  = 64.0;
  449.     const float LUT_SCALE = ( LUT_SIZE - 1.0 ) / LUT_SIZE;
  450.     const float LUT_BIAS  = 0.5 / LUT_SIZE;
  451.     float dotNV = saturate( dot( N, V ) );
  452.     vec2 uv = vec2( roughness, sqrt( 1.0 - dotNV ) );
  453.     uv = uv * LUT_SCALE + LUT_BIAS;
  454.     return uv;
  455. }
  456. float LTC_ClippedSphereFormFactor( const in vec3 f ) {
  457.     float l = length( f );
  458.     return max( ( l * l + f.z ) / ( l + 1.0 ), 0.0 );
  459. }
  460. vec3 LTC_EdgeVectorFormFactor( const in vec3 v1, const in vec3 v2 ) {
  461.     float x = dot( v1, v2 );
  462.     float y = abs( x );
  463.     float a = 0.8543985 + ( 0.4965155 + 0.0145206 * y ) * y;
  464.     float b = 3.4175940 + ( 4.1616724 + y ) * y;
  465.     float v = a / b;
  466.     float theta_sintheta = ( x > 0.0 ) ? v : 0.5 * inversesqrt( max( 1.0 - x * x, 1e-7 ) ) - v;
  467.     return cross( v1, v2 ) * theta_sintheta;
  468. }
  469. vec3 LTC_Evaluate( const in vec3 N, const in vec3 V, const in vec3 P, const in mat3 mInv, const in vec3 rectCoords[ 4 ] ) {
  470.     vec3 v1 = rectCoords[ 1 ] - rectCoords[ 0 ];
  471.     vec3 v2 = rectCoords[ 3 ] - rectCoords[ 0 ];
  472.     vec3 lightNormal = cross( v1, v2 );
  473.     if( dot( lightNormal, P - rectCoords[ 0 ] ) < 0.0 ) return vec3( 0.0 );
  474.     vec3 T1, T2;
  475.     T1 = normalize( V - N * dot( V, N ) );
  476.     T2 = - cross( N, T1 );
  477.     mat3 mat = mInv * transposeMat3( mat3( T1, T2, N ) );
  478.     vec3 coords[ 4 ];
  479.     coords[ 0 ] = mat * ( rectCoords[ 0 ] - P );
  480.     coords[ 1 ] = mat * ( rectCoords[ 1 ] - P );
  481.     coords[ 2 ] = mat * ( rectCoords[ 2 ] - P );
  482.     coords[ 3 ] = mat * ( rectCoords[ 3 ] - P );
  483.     coords[ 0 ] = normalize( coords[ 0 ] );
  484.     coords[ 1 ] = normalize( coords[ 1 ] );
  485.     coords[ 2 ] = normalize( coords[ 2 ] );
  486.     coords[ 3 ] = normalize( coords[ 3 ] );
  487.     vec3 vectorFormFactor = vec3( 0.0 );
  488.     vectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 0 ], coords[ 1 ] );
  489.     vectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 1 ], coords[ 2 ] );
  490.     vectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 2 ], coords[ 3 ] );
  491.     vectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 3 ], coords[ 0 ] );
  492.     float result = LTC_ClippedSphereFormFactor( vectorFormFactor );
  493.     return vec3( result );
  494. }
  495. vec3 BRDF_Specular_GGX_Environment( const in vec3 viewDir, const in vec3 normal, const in vec3 specularColor, const in float roughness ) {
  496.     float dotNV = saturate( dot( normal, viewDir ) );
  497.     vec2 brdf = integrateSpecularBRDF( dotNV, roughness );
  498.     return specularColor * brdf.x + brdf.y;
  499. }
  500. void BRDF_Specular_Multiscattering_Environment( const in GeometricContext geometry, const in vec3 specularColor, const in float roughness, inout vec3 singleScatter, inout vec3 multiScatter ) {
  501.     float dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );
  502.     vec3 F = F_Schlick_RoughnessDependent( specularColor, dotNV, roughness );
  503.     vec2 brdf = integrateSpecularBRDF( dotNV, roughness );
  504.     vec3 FssEss = F * brdf.x + brdf.y;
  505.     float Ess = brdf.x + brdf.y;
  506.     float Ems = 1.0 - Ess;
  507.     vec3 Favg = specularColor + ( 1.0 - specularColor ) * 0.047619; vec3 Fms = FssEss * Favg / ( 1.0 - Ems * Favg );
  508.     singleScatter += FssEss;
  509.     multiScatter += Fms * Ems;
  510. }
  511. float G_BlinnPhong_Implicit( ) {
  512.     return 0.25;
  513. }
  514. float D_BlinnPhong( const in float shininess, const in float dotNH ) {
  515.     return RECIPROCAL_PI * ( shininess * 0.5 + 1.0 ) * pow( dotNH, shininess );
  516. }
  517. vec3 BRDF_Specular_BlinnPhong( const in IncidentLight incidentLight, const in GeometricContext geometry, const in vec3 specularColor, const in float shininess ) {
  518.     vec3 halfDir = normalize( incidentLight.direction + geometry.viewDir );
  519.     float dotNH = saturate( dot( geometry.normal, halfDir ) );
  520.     float dotLH = saturate( dot( incidentLight.direction, halfDir ) );
  521.     vec3 F = F_Schlick( specularColor, dotLH );
  522.     float G = G_BlinnPhong_Implicit( );
  523.     float D = D_BlinnPhong( shininess, dotNH );
  524.     return F * ( G * D );
  525. }
  526. float GGXRoughnessToBlinnExponent( const in float ggxRoughness ) {
  527.     return ( 2.0 / pow2( ggxRoughness + 0.0001 ) - 2.0 );
  528. }
  529. float BlinnExponentToGGXRoughness( const in float blinnExponent ) {
  530.     return sqrt( 2.0 / ( blinnExponent + 2.0 ) );
  531. }
  532. #if defined( USE_SHEEN )
  533. float D_Charlie(float roughness, float NoH) {
  534.     float invAlpha  = 1.0 / roughness;
  535.     float cos2h = NoH * NoH;
  536.     float sin2h = max(1.0 - cos2h, 0.0078125);  return (2.0 + invAlpha) * pow(sin2h, invAlpha * 0.5) / (2.0 * PI);
  537. }
  538. float V_Neubelt(float NoV, float NoL) {
  539.     return saturate(1.0 / (4.0 * (NoL + NoV - NoL * NoV)));
  540. }
  541. vec3 BRDF_Specular_Sheen( const in float roughness, const in vec3 L, const in GeometricContext geometry, vec3 specularColor ) {
  542.     vec3 N = geometry.normal;
  543.     vec3 V = geometry.viewDir;
  544.     vec3 H = normalize( V + L );
  545.     float dotNH = saturate( dot( N, H ) );
  546.     return specularColor * D_Charlie( roughness, dotNH ) * V_Neubelt( dot(N, V), dot(N, L) );
  547. }
  548. #endif
  549. uniform bool receiveShadow;
  550. uniform vec3 ambientLightColor;
  551. uniform vec3 lightProbe[ 9 ];
  552. vec3 shGetIrradianceAt( in vec3 normal, in vec3 shCoefficients[ 9 ] ) {
  553.     float x = normal.x, y = normal.y, z = normal.z;
  554.     vec3 result = shCoefficients[ 0 ] * 0.886227;
  555.     result += shCoefficients[ 1 ] * 2.0 * 0.511664 * y;
  556.     result += shCoefficients[ 2 ] * 2.0 * 0.511664 * z;
  557.     result += shCoefficients[ 3 ] * 2.0 * 0.511664 * x;
  558.     result += shCoefficients[ 4 ] * 2.0 * 0.429043 * x * y;
  559.     result += shCoefficients[ 5 ] * 2.0 * 0.429043 * y * z;
  560.     result += shCoefficients[ 6 ] * ( 0.743125 * z * z - 0.247708 );
  561.     result += shCoefficients[ 7 ] * 2.0 * 0.429043 * x * z;
  562.     result += shCoefficients[ 8 ] * 0.429043 * ( x * x - y * y );
  563.     return result;
  564. }
  565. vec3 getLightProbeIrradiance( const in vec3 lightProbe[ 9 ], const in GeometricContext geometry ) {
  566.     vec3 worldNormal = inverseTransformDirection( geometry.normal, viewMatrix );
  567.     vec3 irradiance = shGetIrradianceAt( worldNormal, lightProbe );
  568.     return irradiance;
  569. }
  570. vec3 getAmbientLightIrradiance( const in vec3 ambientLightColor ) {
  571.     vec3 irradiance = ambientLightColor;
  572.     #ifndef PHYSICALLY_CORRECT_LIGHTS
  573.         irradiance *= PI;
  574.     #endif
  575.     return irradiance;
  576. }
  577. #if 1 > 0
  578.     struct DirectionalLight {
  579.         vec3 direction;
  580.         vec3 color;
  581.     };
  582.     uniform DirectionalLight directionalLights[ 1 ];
  583.     void getDirectionalDirectLightIrradiance( const in DirectionalLight directionalLight, const in GeometricContext geometry, out IncidentLight directLight ) {
  584.         directLight.color = directionalLight.color;
  585.         directLight.direction = directionalLight.direction;
  586.         directLight.visible = true;
  587.     }
  588. #endif
  589. #if 0 > 0
  590.     struct PointLight {
  591.         vec3 position;
  592.         vec3 color;
  593.         float distance;
  594.         float decay;
  595.     };
  596.     uniform PointLight pointLights[ 0 ];
  597.     void getPointDirectLightIrradiance( const in PointLight pointLight, const in GeometricContext geometry, out IncidentLight directLight ) {
  598.         vec3 lVector = pointLight.position - geometry.position;
  599.         directLight.direction = normalize( lVector );
  600.         float lightDistance = length( lVector );
  601.         directLight.color = pointLight.color;
  602.         directLight.color *= punctualLightIntensityToIrradianceFactor( lightDistance, pointLight.distance, pointLight.decay );
  603.         directLight.visible = ( directLight.color != vec3( 0.0 ) );
  604.     }
  605. #endif
  606. #if 0 > 0
  607.     struct SpotLight {
  608.         vec3 position;
  609.         vec3 direction;
  610.         vec3 color;
  611.         float distance;
  612.         float decay;
  613.         float coneCos;
  614.         float penumbraCos;
  615.     };
  616.     uniform SpotLight spotLights[ 0 ];
  617.     void getSpotDirectLightIrradiance( const in SpotLight spotLight, const in GeometricContext geometry, out IncidentLight directLight  ) {
  618.         vec3 lVector = spotLight.position - geometry.position;
  619.         directLight.direction = normalize( lVector );
  620.         float lightDistance = length( lVector );
  621.         float angleCos = dot( directLight.direction, spotLight.direction );
  622.         if ( angleCos > spotLight.coneCos ) {
  623.             float spotEffect = smoothstep( spotLight.coneCos, spotLight.penumbraCos, angleCos );
  624.             directLight.color = spotLight.color;
  625.             directLight.color *= spotEffect * punctualLightIntensityToIrradianceFactor( lightDistance, spotLight.distance, spotLight.decay );
  626.             directLight.visible = true;
  627.         } else {
  628.             directLight.color = vec3( 0.0 );
  629.             directLight.visible = false;
  630.         }
  631.     }
  632. #endif
  633. #if 0 > 0
  634.     struct RectAreaLight {
  635.         vec3 color;
  636.         vec3 position;
  637.         vec3 halfWidth;
  638.         vec3 halfHeight;
  639.     };
  640.     uniform sampler2D ltc_1;    uniform sampler2D ltc_2;
  641.     uniform RectAreaLight rectAreaLights[ 0 ];
  642. #endif
  643. #if 0 > 0
  644.     struct HemisphereLight {
  645.         vec3 direction;
  646.         vec3 skyColor;
  647.         vec3 groundColor;
  648.     };
  649.     uniform HemisphereLight hemisphereLights[ 0 ];
  650.     vec3 getHemisphereLightIrradiance( const in HemisphereLight hemiLight, const in GeometricContext geometry ) {
  651.         float dotNL = dot( geometry.normal, hemiLight.direction );
  652.         float hemiDiffuseWeight = 0.5 * dotNL + 0.5;
  653.         vec3 irradiance = mix( hemiLight.groundColor, hemiLight.skyColor, hemiDiffuseWeight );
  654.         #ifndef PHYSICALLY_CORRECT_LIGHTS
  655.             irradiance *= PI;
  656.         #endif
  657.         return irradiance;
  658.     }
  659. #endif
  660. varying vec3 vViewPosition;
  661. #ifndef FLAT_SHADED
  662.     varying vec3 vNormal;
  663. #endif
  664. struct BlinnPhongMaterial {
  665.     vec3 diffuseColor;
  666.     vec3 specularColor;
  667.     float specularShininess;
  668.     float specularStrength;
  669. };
  670. void RE_Direct_BlinnPhong( const in IncidentLight directLight, const in GeometricContext geometry, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {
  671.     float dotNL = saturate( dot( geometry.normal, directLight.direction ) );
  672.     vec3 irradiance = dotNL * directLight.color;
  673.     #ifndef PHYSICALLY_CORRECT_LIGHTS
  674.         irradiance *= PI;
  675.     #endif
  676.     reflectedLight.directDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );
  677.     reflectedLight.directSpecular += irradiance * BRDF_Specular_BlinnPhong( directLight, geometry, material.specularColor, material.specularShininess ) * material.specularStrength;
  678. }
  679. void RE_IndirectDiffuse_BlinnPhong( const in vec3 irradiance, const in GeometricContext geometry, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {
  680.     reflectedLight.indirectDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );
  681. }
  682. #define RE_Direct               RE_Direct_BlinnPhong
  683. #define RE_IndirectDiffuse      RE_IndirectDiffuse_BlinnPhong
  684. #define Material_LightProbeLOD( material )  (0)
  685. #ifdef USE_SHADOWMAP
  686.     #if 0 > 0
  687.         uniform sampler2D directionalShadowMap[ 0 ];
  688.         varying vec4 vDirectionalShadowCoord[ 0 ];
  689.         struct DirectionalLightShadow {
  690.             float shadowBias;
  691.             float shadowNormalBias;
  692.             float shadowRadius;
  693.             vec2 shadowMapSize;
  694.         };
  695.         uniform DirectionalLightShadow directionalLightShadows[ 0 ];
  696.     #endif
  697.     #if 0 > 0
  698.         uniform sampler2D spotShadowMap[ 0 ];
  699.         varying vec4 vSpotShadowCoord[ 0 ];
  700.         struct SpotLightShadow {
  701.             float shadowBias;
  702.             float shadowNormalBias;
  703.             float shadowRadius;
  704.             vec2 shadowMapSize;
  705.         };
  706.         uniform SpotLightShadow spotLightShadows[ 0 ];
  707.     #endif
  708.     #if 0 > 0
  709.         uniform sampler2D pointShadowMap[ 0 ];
  710.         varying vec4 vPointShadowCoord[ 0 ];
  711.         struct PointLightShadow {
  712.             float shadowBias;
  713.             float shadowNormalBias;
  714.             float shadowRadius;
  715.             vec2 shadowMapSize;
  716.             float shadowCameraNear;
  717.             float shadowCameraFar;
  718.         };
  719.         uniform PointLightShadow pointLightShadows[ 0 ];
  720.     #endif
  721.     float texture2DCompare( sampler2D depths, vec2 uv, float compare ) {
  722.         return step( compare, unpackRGBAToDepth( texture2D( depths, uv ) ) );
  723.     }
  724.     vec2 texture2DDistribution( sampler2D shadow, vec2 uv ) {
  725.         return unpackRGBATo2Half( texture2D( shadow, uv ) );
  726.     }
  727.     float VSMShadow (sampler2D shadow, vec2 uv, float compare ){
  728.         float occlusion = 1.0;
  729.         vec2 distribution = texture2DDistribution( shadow, uv );
  730.         float hard_shadow = step( compare , distribution.x );
  731.         if (hard_shadow != 1.0 ) {
  732.             float distance = compare - distribution.x ;
  733.             float variance = max( 0.00000, distribution.y * distribution.y );
  734.             float softness_probability = variance / (variance + distance * distance );          softness_probability = clamp( ( softness_probability - 0.3 ) / ( 0.95 - 0.3 ), 0.0, 1.0 );          occlusion = clamp( max( hard_shadow, softness_probability ), 0.0, 1.0 );
  735.         }
  736.         return occlusion;
  737.     }
  738.     float getShadow( sampler2D shadowMap, vec2 shadowMapSize, float shadowBias, float shadowRadius, vec4 shadowCoord ) {
  739.         float shadow = 1.0;
  740.         shadowCoord.xyz /= shadowCoord.w;
  741.         shadowCoord.z += shadowBias;
  742.         bvec4 inFrustumVec = bvec4 ( shadowCoord.x >= 0.0, shadowCoord.x <= 1.0, shadowCoord.y >= 0.0, shadowCoord.y <= 1.0 );
  743.         bool inFrustum = all( inFrustumVec );
  744.         bvec2 frustumTestVec = bvec2( inFrustum, shadowCoord.z <= 1.0 );
  745.         bool frustumTest = all( frustumTestVec );
  746.         if ( frustumTest ) {
  747.         #if defined( SHADOWMAP_TYPE_PCF )
  748.             vec2 texelSize = vec2( 1.0 ) / shadowMapSize;
  749.             float dx0 = - texelSize.x * shadowRadius;
  750.             float dy0 = - texelSize.y * shadowRadius;
  751.             float dx1 = + texelSize.x * shadowRadius;
  752.             float dy1 = + texelSize.y * shadowRadius;
  753.             float dx2 = dx0 / 2.0;
  754.             float dy2 = dy0 / 2.0;
  755.             float dx3 = dx1 / 2.0;
  756.             float dy3 = dy1 / 2.0;
  757.             shadow = (
  758.                 texture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, dy0 ), shadowCoord.z ) +
  759.                 texture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy0 ), shadowCoord.z ) +
  760.                 texture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, dy0 ), shadowCoord.z ) +
  761.                 texture2DCompare( shadowMap, shadowCoord.xy + vec2( dx2, dy2 ), shadowCoord.z ) +
  762.                 texture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy2 ), shadowCoord.z ) +
  763.                 texture2DCompare( shadowMap, shadowCoord.xy + vec2( dx3, dy2 ), shadowCoord.z ) +
  764.                 texture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, 0.0 ), shadowCoord.z ) +
  765.                 texture2DCompare( shadowMap, shadowCoord.xy + vec2( dx2, 0.0 ), shadowCoord.z ) +
  766.                 texture2DCompare( shadowMap, shadowCoord.xy, shadowCoord.z ) +
  767.                 texture2DCompare( shadowMap, shadowCoord.xy + vec2( dx3, 0.0 ), shadowCoord.z ) +
  768.                 texture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, 0.0 ), shadowCoord.z ) +
  769.                 texture2DCompare( shadowMap, shadowCoord.xy + vec2( dx2, dy3 ), shadowCoord.z ) +
  770.                 texture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy3 ), shadowCoord.z ) +
  771.                 texture2DCompare( shadowMap, shadowCoord.xy + vec2( dx3, dy3 ), shadowCoord.z ) +
  772.                 texture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, dy1 ), shadowCoord.z ) +
  773.                 texture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy1 ), shadowCoord.z ) +
  774.                 texture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, dy1 ), shadowCoord.z )
  775.             ) * ( 1.0 / 17.0 );
  776.         #elif defined( SHADOWMAP_TYPE_PCF_SOFT )
  777.             vec2 texelSize = vec2( 1.0 ) / shadowMapSize;
  778.             float dx = texelSize.x;
  779.             float dy = texelSize.y;
  780.             vec2 uv = shadowCoord.xy;
  781.             vec2 f = fract( uv * shadowMapSize + 0.5 );
  782.             uv -= f * texelSize;
  783.             shadow = (
  784.                 texture2DCompare( shadowMap, uv, shadowCoord.z ) +
  785.                 texture2DCompare( shadowMap, uv + vec2( dx, 0.0 ), shadowCoord.z ) +
  786.                 texture2DCompare( shadowMap, uv + vec2( 0.0, dy ), shadowCoord.z ) +
  787.                 texture2DCompare( shadowMap, uv + texelSize, shadowCoord.z ) +
  788.                 mix( texture2DCompare( shadowMap, uv + vec2( -dx, 0.0 ), shadowCoord.z ),
  789.                      texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, 0.0 ), shadowCoord.z ),
  790.                      f.x ) +
  791.                 mix( texture2DCompare( shadowMap, uv + vec2( -dx, dy ), shadowCoord.z ),
  792.                      texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, dy ), shadowCoord.z ),
  793.                      f.x ) +
  794.                 mix( texture2DCompare( shadowMap, uv + vec2( 0.0, -dy ), shadowCoord.z ),
  795.                      texture2DCompare( shadowMap, uv + vec2( 0.0, 2.0 * dy ), shadowCoord.z ),
  796.                      f.y ) +
  797.                 mix( texture2DCompare( shadowMap, uv + vec2( dx, -dy ), shadowCoord.z ),
  798.                      texture2DCompare( shadowMap, uv + vec2( dx, 2.0 * dy ), shadowCoord.z ),
  799.                      f.y ) +
  800.                 mix( mix( texture2DCompare( shadowMap, uv + vec2( -dx, -dy ), shadowCoord.z ),
  801.                           texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, -dy ), shadowCoord.z ),
  802.                           f.x ),
  803.                      mix( texture2DCompare( shadowMap, uv + vec2( -dx, 2.0 * dy ), shadowCoord.z ),
  804.                           texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, 2.0 * dy ), shadowCoord.z ),
  805.                           f.x ),
  806.                      f.y )
  807.             ) * ( 1.0 / 9.0 );
  808.         #elif defined( SHADOWMAP_TYPE_VSM )
  809.             shadow = VSMShadow( shadowMap, shadowCoord.xy, shadowCoord.z );
  810.         #else
  811.             shadow = texture2DCompare( shadowMap, shadowCoord.xy, shadowCoord.z );
  812.         #endif
  813.         }
  814.         return shadow;
  815.     }
  816.     vec2 cubeToUV( vec3 v, float texelSizeY ) {
  817.         vec3 absV = abs( v );
  818.         float scaleToCube = 1.0 / max( absV.x, max( absV.y, absV.z ) );
  819.         absV *= scaleToCube;
  820.         v *= scaleToCube * ( 1.0 - 2.0 * texelSizeY );
  821.         vec2 planar = v.xy;
  822.         float almostATexel = 1.5 * texelSizeY;
  823.         float almostOne = 1.0 - almostATexel;
  824.         if ( absV.z >= almostOne ) {
  825.             if ( v.z > 0.0 )
  826.                 planar.x = 4.0 - v.x;
  827.         } else if ( absV.x >= almostOne ) {
  828.             float signX = sign( v.x );
  829.             planar.x = v.z * signX + 2.0 * signX;
  830.         } else if ( absV.y >= almostOne ) {
  831.             float signY = sign( v.y );
  832.             planar.x = v.x + 2.0 * signY + 2.0;
  833.             planar.y = v.z * signY - 2.0;
  834.         }
  835.         return vec2( 0.125, 0.25 ) * planar + vec2( 0.375, 0.75 );
  836.     }
  837.     float getPointShadow( sampler2D shadowMap, vec2 shadowMapSize, float shadowBias, float shadowRadius, vec4 shadowCoord, float shadowCameraNear, float shadowCameraFar ) {
  838.         vec2 texelSize = vec2( 1.0 ) / ( shadowMapSize * vec2( 4.0, 2.0 ) );
  839.         vec3 lightToPosition = shadowCoord.xyz;
  840.         float dp = ( length( lightToPosition ) - shadowCameraNear ) / ( shadowCameraFar - shadowCameraNear );       dp += shadowBias;
  841.         vec3 bd3D = normalize( lightToPosition );
  842.         #if defined( SHADOWMAP_TYPE_PCF ) || defined( SHADOWMAP_TYPE_PCF_SOFT ) || defined( SHADOWMAP_TYPE_VSM )
  843.             vec2 offset = vec2( - 1, 1 ) * shadowRadius * texelSize.y;
  844.             return (
  845.                 texture2DCompare( shadowMap, cubeToUV( bd3D + offset.xyy, texelSize.y ), dp ) +
  846.                 texture2DCompare( shadowMap, cubeToUV( bd3D + offset.yyy, texelSize.y ), dp ) +
  847.                 texture2DCompare( shadowMap, cubeToUV( bd3D + offset.xyx, texelSize.y ), dp ) +
  848.                 texture2DCompare( shadowMap, cubeToUV( bd3D + offset.yyx, texelSize.y ), dp ) +
  849.                 texture2DCompare( shadowMap, cubeToUV( bd3D, texelSize.y ), dp ) +
  850.                 texture2DCompare( shadowMap, cubeToUV( bd3D + offset.xxy, texelSize.y ), dp ) +
  851.                 texture2DCompare( shadowMap, cubeToUV( bd3D + offset.yxy, texelSize.y ), dp ) +
  852.                 texture2DCompare( shadowMap, cubeToUV( bd3D + offset.xxx, texelSize.y ), dp ) +
  853.                 texture2DCompare( shadowMap, cubeToUV( bd3D + offset.yxx, texelSize.y ), dp )
  854.             ) * ( 1.0 / 9.0 );
  855.         #else
  856.             return texture2DCompare( shadowMap, cubeToUV( bd3D, texelSize.y ), dp );
  857.         #endif
  858.     }
  859. #endif
  860. #ifdef USE_BUMPMAP
  861.     uniform sampler2D bumpMap;
  862.     uniform float bumpScale;
  863.     vec2 dHdxy_fwd() {
  864.         vec2 dSTdx = dFdx( vUv );
  865.         vec2 dSTdy = dFdy( vUv );
  866.         float Hll = bumpScale * texture2D( bumpMap, vUv ).x;
  867.         float dBx = bumpScale * texture2D( bumpMap, vUv + dSTdx ).x - Hll;
  868.         float dBy = bumpScale * texture2D( bumpMap, vUv + dSTdy ).x - Hll;
  869.         return vec2( dBx, dBy );
  870.     }
  871.     vec3 perturbNormalArb( vec3 surf_pos, vec3 surf_norm, vec2 dHdxy ) {
  872.         vec3 vSigmaX = vec3( dFdx( surf_pos.x ), dFdx( surf_pos.y ), dFdx( surf_pos.z ) );
  873.         vec3 vSigmaY = vec3( dFdy( surf_pos.x ), dFdy( surf_pos.y ), dFdy( surf_pos.z ) );
  874.         vec3 vN = surf_norm;
  875.         vec3 R1 = cross( vSigmaY, vN );
  876.         vec3 R2 = cross( vN, vSigmaX );
  877.         float fDet = dot( vSigmaX, R1 );
  878.         fDet *= ( float( gl_FrontFacing ) * 2.0 - 1.0 );
  879.         vec3 vGrad = sign( fDet ) * ( dHdxy.x * R1 + dHdxy.y * R2 );
  880.         return normalize( abs( fDet ) * surf_norm - vGrad );
  881.     }
  882. #endif
  883. #ifdef USE_NORMALMAP
  884.     uniform sampler2D normalMap;
  885.     uniform vec2 normalScale;
  886. #endif
  887. #ifdef OBJECTSPACE_NORMALMAP
  888.     uniform mat3 normalMatrix;
  889. #endif
  890. #if ! defined ( USE_TANGENT ) && ( defined ( TANGENTSPACE_NORMALMAP ) || defined ( USE_CLEARCOAT_NORMALMAP ) )
  891.     vec3 perturbNormal2Arb( vec3 eye_pos, vec3 surf_norm, vec3 mapN ) {
  892.         vec3 q0 = vec3( dFdx( eye_pos.x ), dFdx( eye_pos.y ), dFdx( eye_pos.z ) );
  893.         vec3 q1 = vec3( dFdy( eye_pos.x ), dFdy( eye_pos.y ), dFdy( eye_pos.z ) );
  894.         vec2 st0 = dFdx( vUv.st );
  895.         vec2 st1 = dFdy( vUv.st );
  896.         float scale = sign( st1.t * st0.s - st0.t * st1.s );
  897.         vec3 S = normalize( ( q0 * st1.t - q1 * st0.t ) * scale );
  898.         vec3 T = normalize( ( - q0 * st1.s + q1 * st0.s ) * scale );
  899.         vec3 N = normalize( surf_norm );
  900.         mat3 tsn = mat3( S, T, N );
  901.         mapN.xy *= ( float( gl_FrontFacing ) * 2.0 - 1.0 );
  902.         return normalize( tsn * mapN );
  903.     }
  904. #endif
  905. #ifdef USE_SPECULARMAP
  906.     uniform sampler2D specularMap;
  907. #endif
  908. #if defined( USE_LOGDEPTHBUF ) && defined( USE_LOGDEPTHBUF_EXT )
  909.     uniform float logDepthBufFC;
  910.     varying float vFragDepth;
  911.     varying float vIsPerspective;
  912. #endif
  913. #if 0 > 0
  914.     varying vec3 vClipPosition;
  915.     uniform vec4 clippingPlanes[ 0 ];
  916. #endif
  917. void main() {
  918. #if 0 > 0
  919.     vec4 plane;
  920.    
  921.     #if 0 < 0
  922.         bool clipped = true;
  923.        
  924.         if ( clipped ) discard;
  925.     #endif
  926. #endif
  927.     vec4 diffuseColor = vec4( diffuse, opacity );
  928.     ReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );
  929.     vec3 totalEmissiveRadiance = emissive;
  930. #if defined( USE_LOGDEPTHBUF ) && defined( USE_LOGDEPTHBUF_EXT )
  931.     gl_FragDepthEXT = vIsPerspective == 0.0 ? gl_FragCoord.z : log2( vFragDepth ) * logDepthBufFC * 0.5;
  932. #endif
  933. #ifdef USE_MAP
  934.     vec4 texelColor = texture2D( map, vUv );
  935.     texelColor = mapTexelToLinear( texelColor );
  936.     diffuseColor *= texelColor;
  937. #endif
  938. #ifdef USE_COLOR
  939.     diffuseColor.rgb *= vColor;
  940. #endif
  941. #ifdef USE_ALPHAMAP
  942.     diffuseColor.a *= texture2D( alphaMap, vUv ).g;
  943. #endif
  944. #ifdef ALPHATEST
  945.     if ( diffuseColor.a < ALPHATEST ) discard;
  946. #endif
  947. float specularStrength;
  948. #ifdef USE_SPECULARMAP
  949.     vec4 texelSpecular = texture2D( specularMap, vUv );
  950.     specularStrength = texelSpecular.r;
  951. #else
  952.     specularStrength = 1.0;
  953. #endif
  954. #ifdef FLAT_SHADED
  955.     vec3 fdx = vec3( dFdx( vViewPosition.x ), dFdx( vViewPosition.y ), dFdx( vViewPosition.z ) );
  956.     vec3 fdy = vec3( dFdy( vViewPosition.x ), dFdy( vViewPosition.y ), dFdy( vViewPosition.z ) );
  957.     vec3 normal = normalize( cross( fdx, fdy ) );
  958. #else
  959.     vec3 normal = normalize( vNormal );
  960.     #ifdef DOUBLE_SIDED
  961.         normal = normal * ( float( gl_FrontFacing ) * 2.0 - 1.0 );
  962.     #endif
  963.     #ifdef USE_TANGENT
  964.         vec3 tangent = normalize( vTangent );
  965.         vec3 bitangent = normalize( vBitangent );
  966.         #ifdef DOUBLE_SIDED
  967.             tangent = tangent * ( float( gl_FrontFacing ) * 2.0 - 1.0 );
  968.             bitangent = bitangent * ( float( gl_FrontFacing ) * 2.0 - 1.0 );
  969.         #endif
  970.         #if defined( TANGENTSPACE_NORMALMAP ) || defined( USE_CLEARCOAT_NORMALMAP )
  971.             mat3 vTBN = mat3( tangent, bitangent, normal );
  972.         #endif
  973.     #endif
  974. #endif
  975. vec3 geometryNormal = normal;
  976. #ifdef OBJECTSPACE_NORMALMAP
  977.     normal = texture2D( normalMap, vUv ).xyz * 2.0 - 1.0;
  978.     #ifdef FLIP_SIDED
  979.         normal = - normal;
  980.     #endif
  981.     #ifdef DOUBLE_SIDED
  982.         normal = normal * ( float( gl_FrontFacing ) * 2.0 - 1.0 );
  983.     #endif
  984.     normal = normalize( normalMatrix * normal );
  985. #elif defined( TANGENTSPACE_NORMALMAP )
  986.     vec3 mapN = texture2D( normalMap, vUv ).xyz * 2.0 - 1.0;
  987.     mapN.xy *= normalScale;
  988.     #ifdef USE_TANGENT
  989.         normal = normalize( vTBN * mapN );
  990.     #else
  991.         normal = perturbNormal2Arb( -vViewPosition, normal, mapN );
  992.     #endif
  993. #elif defined( USE_BUMPMAP )
  994.     normal = perturbNormalArb( -vViewPosition, normal, dHdxy_fwd() );
  995. #endif
  996. #ifdef USE_EMISSIVEMAP
  997.     vec4 emissiveColor = texture2D( emissiveMap, vUv );
  998.     emissiveColor.rgb = emissiveMapTexelToLinear( emissiveColor ).rgb;
  999.     totalEmissiveRadiance *= emissiveColor.rgb;
  1000. #endif
  1001. BlinnPhongMaterial material;
  1002. material.diffuseColor = diffuseColor.rgb;
  1003. material.specularColor = specular;
  1004. material.specularShininess = shininess;
  1005. material.specularStrength = specularStrength;
  1006.  
  1007. GeometricContext geometry;
  1008. geometry.position = - vViewPosition;
  1009. geometry.normal = normal;
  1010. geometry.viewDir = ( isOrthographic ) ? vec3( 0, 0, 1 ) : normalize( vViewPosition );
  1011. #ifdef CLEARCOAT
  1012.     geometry.clearcoatNormal = clearcoatNormal;
  1013. #endif
  1014. IncidentLight directLight;
  1015. #if ( 0 > 0 ) && defined( RE_Direct )
  1016.     PointLight pointLight;
  1017.     #if defined( USE_SHADOWMAP ) && 0 > 0
  1018.     PointLightShadow pointLightShadow;
  1019.     #endif
  1020.    
  1021. #endif
  1022. #if ( 0 > 0 ) && defined( RE_Direct )
  1023.     SpotLight spotLight;
  1024.     #if defined( USE_SHADOWMAP ) && 0 > 0
  1025.     SpotLightShadow spotLightShadow;
  1026.     #endif
  1027.    
  1028. #endif
  1029. #if ( 1 > 0 ) && defined( RE_Direct )
  1030.     DirectionalLight directionalLight;
  1031.     #if defined( USE_SHADOWMAP ) && 0 > 0
  1032.     DirectionalLightShadow directionalLightShadow;
  1033.     #endif
  1034.    
  1035.         directionalLight = directionalLights[ 0 ];
  1036.         getDirectionalDirectLightIrradiance( directionalLight, geometry, directLight );
  1037.         #if defined( USE_SHADOWMAP ) && ( 0 < 0 )
  1038.         directionalLightShadow = directionalLightShadows[ 0 ];
  1039.         directLight.color *= all( bvec2( directLight.visible, receiveShadow ) ) ? getShadow( directionalShadowMap[ 0 ], directionalLightShadow.shadowMapSize, directionalLightShadow.shadowBias, directionalLightShadow.shadowRadius, vDirectionalShadowCoord[ 0 ] ) : 1.0;
  1040.         #endif
  1041.         RE_Direct( directLight, geometry, material, reflectedLight );
  1042.    
  1043. #endif
  1044. #if ( 0 > 0 ) && defined( RE_Direct_RectArea )
  1045.     RectAreaLight rectAreaLight;
  1046.    
  1047. #endif
  1048. #if defined( RE_IndirectDiffuse )
  1049.     vec3 iblIrradiance = vec3( 0.0 );
  1050.     vec3 irradiance = getAmbientLightIrradiance( ambientLightColor );
  1051.     irradiance += getLightProbeIrradiance( lightProbe, geometry );
  1052.     #if ( 0 > 0 )
  1053.        
  1054.     #endif
  1055. #endif
  1056. #if defined( RE_IndirectSpecular )
  1057.     vec3 radiance = vec3( 0.0 );
  1058.     vec3 clearcoatRadiance = vec3( 0.0 );
  1059. #endif
  1060. #if defined( RE_IndirectDiffuse )
  1061.     #ifdef USE_LIGHTMAP
  1062.         vec4 lightMapTexel= texture2D( lightMap, vUv2 );
  1063.         vec3 lightMapIrradiance = lightMapTexelToLinear( lightMapTexel ).rgb * lightMapIntensity;
  1064.         #ifndef PHYSICALLY_CORRECT_LIGHTS
  1065.             lightMapIrradiance *= PI;
  1066.         #endif
  1067.         irradiance += lightMapIrradiance;
  1068.     #endif
  1069.     #if defined( USE_ENVMAP ) && defined( STANDARD ) && defined( ENVMAP_TYPE_CUBE_UV )
  1070.         iblIrradiance += getLightProbeIndirectIrradiance( geometry, maxMipLevel );
  1071.     #endif
  1072. #endif
  1073. #if defined( USE_ENVMAP ) && defined( RE_IndirectSpecular )
  1074.     radiance += getLightProbeIndirectRadiance( geometry.viewDir, geometry.normal, material.specularRoughness, maxMipLevel );
  1075.     #ifdef CLEARCOAT
  1076.         clearcoatRadiance += getLightProbeIndirectRadiance( geometry.viewDir, geometry.clearcoatNormal, material.clearcoatRoughness, maxMipLevel );
  1077.     #endif
  1078. #endif
  1079. #if defined( RE_IndirectDiffuse )
  1080.     RE_IndirectDiffuse( irradiance, geometry, material, reflectedLight );
  1081. #endif
  1082. #if defined( RE_IndirectSpecular )
  1083.     RE_IndirectSpecular( radiance, iblIrradiance, clearcoatRadiance, geometry, material, reflectedLight );
  1084. #endif
  1085. #ifdef USE_AOMAP
  1086.     float ambientOcclusion = ( texture2D( aoMap, vUv2 ).r - 1.0 ) * aoMapIntensity + 1.0;
  1087.     reflectedLight.indirectDiffuse *= ambientOcclusion;
  1088.     #if defined( USE_ENVMAP ) && defined( STANDARD )
  1089.         float dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );
  1090.         reflectedLight.indirectSpecular *= computeSpecularOcclusion( dotNV, ambientOcclusion, material.specularRoughness );
  1091.     #endif
  1092. #endif
  1093.     vec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + reflectedLight.directSpecular + reflectedLight.indirectSpecular + totalEmissiveRadiance;
  1094. #ifdef USE_ENVMAP
  1095.     #ifdef ENV_WORLDPOS
  1096.         vec3 cameraToFrag;
  1097.        
  1098.         if ( isOrthographic ) {
  1099.             cameraToFrag = normalize( vec3( - viewMatrix[ 0 ][ 2 ], - viewMatrix[ 1 ][ 2 ], - viewMatrix[ 2 ][ 2 ] ) );
  1100.         }  else {
  1101.             cameraToFrag = normalize( vWorldPosition - cameraPosition );
  1102.         }
  1103.         vec3 worldNormal = inverseTransformDirection( normal, viewMatrix );
  1104.         #ifdef ENVMAP_MODE_REFLECTION
  1105.             vec3 reflectVec = reflect( cameraToFrag, worldNormal );
  1106.         #else
  1107.             vec3 reflectVec = refract( cameraToFrag, worldNormal, refractionRatio );
  1108.         #endif
  1109.     #else
  1110.         vec3 reflectVec = vReflect;
  1111.     #endif
  1112.     #ifdef ENVMAP_TYPE_CUBE
  1113.         vec4 envColor = textureCube( envMap, vec3( flipEnvMap * reflectVec.x, reflectVec.yz ) );
  1114.     #elif defined( ENVMAP_TYPE_CUBE_UV )
  1115.         vec4 envColor = textureCubeUV( envMap, reflectVec, 0.0 );
  1116.     #elif defined( ENVMAP_TYPE_EQUIREC )
  1117.         reflectVec = normalize( reflectVec );
  1118.         vec2 sampleUV = equirectUv( reflectVec );
  1119.         vec4 envColor = texture2D( envMap, sampleUV );
  1120.     #else
  1121.         vec4 envColor = vec4( 0.0 );
  1122.     #endif
  1123.     #ifndef ENVMAP_TYPE_CUBE_UV
  1124.         envColor = envMapTexelToLinear( envColor );
  1125.     #endif
  1126.     #ifdef ENVMAP_BLENDING_MULTIPLY
  1127.         outgoingLight = mix( outgoingLight, outgoingLight * envColor.xyz, specularStrength * reflectivity );
  1128.     #elif defined( ENVMAP_BLENDING_MIX )
  1129.         outgoingLight = mix( outgoingLight, envColor.xyz, specularStrength * reflectivity );
  1130.     #elif defined( ENVMAP_BLENDING_ADD )
  1131.         outgoingLight += envColor.xyz * specularStrength * reflectivity;
  1132.     #endif
  1133. #endif
  1134.     gl_FragColor = vec4( outgoingLight, diffuseColor.a );
  1135. #if defined( TONE_MAPPING )
  1136.     gl_FragColor.rgb = toneMapping( gl_FragColor.rgb );
  1137. #endif
  1138. gl_FragColor = linearToOutputTexel( gl_FragColor );
  1139. #ifdef USE_FOG
  1140.     #ifdef FOG_EXP2
  1141.         float fogFactor = 1.0 - exp( - fogDensity * fogDensity * fogDepth * fogDepth );
  1142.     #else
  1143.         float fogFactor = smoothstep( fogNear, fogFar, fogDepth );
  1144.     #endif
  1145.     gl_FragColor.rgb = mix( gl_FragColor.rgb, fogColor, fogFactor );
  1146. #endif
  1147. #ifdef PREMULTIPLIED_ALPHA
  1148.     gl_FragColor.rgb *= gl_FragColor.a;
  1149. #endif
  1150. #ifdef DITHERING
  1151.     gl_FragColor.rgb = dithering( gl_FragColor.rgb );
  1152. #endif
  1153. }
Advertisement
Add Comment
Please, Sign In to add comment
Advertisement
Public Pastes
Advertisement
We use cookies for various purposes including analytics. By continuing to use Pastebin, you agree to our use of cookies as described in the Cookies Policy.  OK, I Understand
Not a member of Pastebin yet?
Sign Up, it unlocks many cool features!