#version 300 es #define varying in layout(location = 0) out highp vec4 pc_fragColor; #define gl_FragColor pc_fragColor #define gl_FragDepthEXT gl_FragDepth #define texture2D texture #define textureCube texture #define texture2DProj textureProj #define texture2DLodEXT textureLod #define texture2DProjLodEXT textureProjLod #define textureCubeLodEXT textureLod #define texture2DGradEXT textureGrad #define texture2DProjGradEXT textureProjGrad #define textureCubeGradEXT textureGrad precision highp float; precision highp int; #define HIGH_PRECISION #define SHADER_NAME MeshPhysicalMaterial #define STANDARD #define PHYSICAL #define USE_MAP #define USE_ENVMAP #define ENVMAP_TYPE_CUBE_UV #define ENVMAP_MODE_REFLECTION #define ENVMAP_BLENDING_NONE #define CUBEUV_TEXEL_WIDTH 0.0013020833333333333 #define CUBEUV_TEXEL_HEIGHT 0.0009765625 #define CUBEUV_MAX_MIP 8.0 #define USE_NORMALMAP #define TANGENTSPACE_NORMALMAP #define USE_CLEARCOAT #define USE_TANGENT #define USE_UV uniform mat4 viewMatrix; uniform vec3 cameraPosition; uniform bool isOrthographic; #define TONE_MAPPING #ifndef saturate #define saturate( a ) clamp( a, 0.0, 1.0 ) #endif uniform float toneMappingExposure; vec3 LinearToneMapping( vec3 color ) { return toneMappingExposure * color; } vec3 ReinhardToneMapping( vec3 color ) { color *= toneMappingExposure; return saturate( color / ( vec3( 1.0 ) + color ) ); } vec3 OptimizedCineonToneMapping( vec3 color ) { color *= toneMappingExposure; color = max( vec3( 0.0 ), color - 0.004 ); return pow( ( color * ( 6.2 * color + 0.5 ) ) / ( color * ( 6.2 * color + 1.7 ) + 0.06 ), vec3( 2.2 ) ); } vec3 RRTAndODTFit( vec3 v ) { vec3 a = v * ( v + 0.0245786 ) - 0.000090537; vec3 b = v * ( 0.983729 * v + 0.4329510 ) + 0.238081; return a / b; } vec3 ACESFilmicToneMapping( vec3 color ) { const mat3 ACESInputMat = mat3( vec3( 0.59719, 0.07600, 0.02840 ), vec3( 0.35458, 0.90834, 0.13383 ), vec3( 0.04823, 0.01566, 0.83777 ) ); const mat3 ACESOutputMat = mat3( vec3( 1.60475, -0.10208, -0.00327 ), vec3( -0.53108, 1.10813, -0.07276 ), vec3( -0.07367, -0.00605, 1.07602 ) ); color *= toneMappingExposure / 0.6; color = ACESInputMat * color; color = RRTAndODTFit( color ); color = ACESOutputMat * color; return saturate( color ); } vec3 CustomToneMapping( vec3 color ) { return color; } vec3 toneMapping( vec3 color ) { return LinearToneMapping( color ); } #define OPAQUE vec4 LinearToLinear( in vec4 value ) { return value; } vec4 LinearTosRGB( in vec4 value ) { 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 ); } vec4 linearToOutputTexel( vec4 value ) { return LinearTosRGB( value ); } #define STANDARD #ifdef PHYSICAL #define IOR #define SPECULAR #endif uniform vec3 diffuse; uniform vec3 emissive; uniform float roughness; uniform float metalness; uniform float opacity; #ifdef IOR uniform float ior; #endif #ifdef SPECULAR uniform float specularIntensity; uniform vec3 specularColor; #ifdef USE_SPECULARINTENSITYMAP uniform sampler2D specularIntensityMap; #endif #ifdef USE_SPECULARCOLORMAP uniform sampler2D specularColorMap; #endif #endif #ifdef USE_CLEARCOAT uniform float clearcoat; uniform float clearcoatRoughness; #endif #ifdef USE_IRIDESCENCE uniform float iridescence; uniform float iridescenceIOR; uniform float iridescenceThicknessMinimum; uniform float iridescenceThicknessMaximum; #endif #ifdef USE_SHEEN uniform vec3 sheenColor; uniform float sheenRoughness; #ifdef USE_SHEENCOLORMAP uniform sampler2D sheenColorMap; #endif #ifdef USE_SHEENROUGHNESSMAP uniform sampler2D sheenRoughnessMap; #endif #endif varying vec3 vViewPosition; #define PI 3.141592653589793 #define PI2 6.283185307179586 #define PI_HALF 1.5707963267948966 #define RECIPROCAL_PI 0.3183098861837907 #define RECIPROCAL_PI2 0.15915494309189535 #define EPSILON 1e-6 #ifndef saturate #define saturate( a ) clamp( a, 0.0, 1.0 ) #endif #define whiteComplement( a ) ( 1.0 - saturate( a ) ) float pow2( const in float x ) { return x*x; } vec3 pow2( const in vec3 x ) { return x*x; } float pow3( const in float x ) { return x*x*x; } float pow4( const in float x ) { float x2 = x*x; return x2*x2; } float max3( const in vec3 v ) { return max( max( v.x, v.y ), v.z ); } float average( const in vec3 v ) { return dot( v, vec3( 0.3333333 ) ); } highp float rand( const in vec2 uv ) { const highp float a = 12.9898, b = 78.233, c = 43758.5453; highp float dt = dot( uv.xy, vec2( a,b ) ), sn = mod( dt, PI ); return fract( sin( sn ) * c ); } #ifdef HIGH_PRECISION float precisionSafeLength( vec3 v ) { return length( v ); } #else float precisionSafeLength( vec3 v ) { float maxComponent = max3( abs( v ) ); return length( v / maxComponent ) * maxComponent; } #endif struct IncidentLight { vec3 color; vec3 direction; bool visible; }; struct ReflectedLight { vec3 directDiffuse; vec3 directSpecular; vec3 indirectDiffuse; vec3 indirectSpecular; }; struct GeometricContext { vec3 position; vec3 normal; vec3 viewDir; #ifdef USE_CLEARCOAT vec3 clearcoatNormal; #endif }; vec3 transformDirection( in vec3 dir, in mat4 matrix ) { return normalize( ( matrix * vec4( dir, 0.0 ) ).xyz ); } vec3 inverseTransformDirection( in vec3 dir, in mat4 matrix ) { return normalize( ( vec4( dir, 0.0 ) * matrix ).xyz ); } mat3 transposeMat3( const in mat3 m ) { mat3 tmp; tmp[ 0 ] = vec3( m[ 0 ].x, m[ 1 ].x, m[ 2 ].x ); tmp[ 1 ] = vec3( m[ 0 ].y, m[ 1 ].y, m[ 2 ].y ); tmp[ 2 ] = vec3( m[ 0 ].z, m[ 1 ].z, m[ 2 ].z ); return tmp; } float luminance( const in vec3 rgb ) { const vec3 weights = vec3( 0.2126729, 0.7151522, 0.0721750 ); return dot( weights, rgb ); } bool isPerspectiveMatrix( mat4 m ) { return m[ 2 ][ 3 ] == - 1.0; } vec2 equirectUv( in vec3 dir ) { float u = atan( dir.z, dir.x ) * RECIPROCAL_PI2 + 0.5; float v = asin( clamp( dir.y, - 1.0, 1.0 ) ) * RECIPROCAL_PI + 0.5; return vec2( u, v ); } vec3 packNormalToRGB( const in vec3 normal ) { return normalize( normal ) * 0.5 + 0.5; } vec3 unpackRGBToNormal( const in vec3 rgb ) { return 2.0 * rgb.xyz - 1.0; } const float PackUpscale = 256. / 255.;const float UnpackDownscale = 255. / 256.; const vec3 PackFactors = vec3( 256. * 256. * 256., 256. * 256., 256. ); const vec4 UnpackFactors = UnpackDownscale / vec4( PackFactors, 1. ); const float ShiftRight8 = 1. / 256.; vec4 packDepthToRGBA( const in float v ) { vec4 r = vec4( fract( v * PackFactors ), v ); r.yzw -= r.xyz * ShiftRight8; return r * PackUpscale; } float unpackRGBAToDepth( const in vec4 v ) { return dot( v, UnpackFactors ); } vec2 packDepthToRG( in highp float v ) { return packDepthToRGBA( v ).yx; } float unpackRGToDepth( const in highp vec2 v ) { return unpackRGBAToDepth( vec4( v.xy, 0.0, 0.0 ) ); } vec4 pack2HalfToRGBA( vec2 v ) { vec4 r = vec4( v.x, fract( v.x * 255.0 ), v.y, fract( v.y * 255.0 ) ); return vec4( r.x - r.y / 255.0, r.y, r.z - r.w / 255.0, r.w ); } vec2 unpackRGBATo2Half( vec4 v ) { return vec2( v.x + ( v.y / 255.0 ), v.z + ( v.w / 255.0 ) ); } float viewZToOrthographicDepth( const in float viewZ, const in float near, const in float far ) { return ( viewZ + near ) / ( near - far ); } float orthographicDepthToViewZ( const in float linearClipZ, const in float near, const in float far ) { return linearClipZ * ( near - far ) - near; } float viewZToPerspectiveDepth( const in float viewZ, const in float near, const in float far ) { return ( ( near + viewZ ) * far ) / ( ( far - near ) * viewZ ); } float perspectiveDepthToViewZ( const in float invClipZ, const in float near, const in float far ) { return ( near * far ) / ( ( far - near ) * invClipZ - far ); } #ifdef DITHERING vec3 dithering( vec3 color ) { float grid_position = rand( gl_FragCoord.xy ); vec3 dither_shift_RGB = vec3( 0.25 / 255.0, -0.25 / 255.0, 0.25 / 255.0 ); dither_shift_RGB = mix( 2.0 * dither_shift_RGB, -2.0 * dither_shift_RGB, grid_position ); return color + dither_shift_RGB; } #endif #if defined( USE_COLOR_ALPHA ) varying vec4 vColor; #elif defined( USE_COLOR ) varying vec3 vColor; #endif #if ( defined( USE_UV ) && ! defined( UVS_VERTEX_ONLY ) ) varying vec2 vUv; #endif #if defined( USE_LIGHTMAP ) || defined( USE_AOMAP ) varying vec2 vUv2; #endif #ifdef USE_MAP uniform sampler2D map; #endif #ifdef USE_ALPHAMAP uniform sampler2D alphaMap; #endif #ifdef USE_ALPHATEST uniform float alphaTest; #endif #ifdef USE_AOMAP uniform sampler2D aoMap; uniform float aoMapIntensity; #endif #ifdef USE_LIGHTMAP uniform sampler2D lightMap; uniform float lightMapIntensity; #endif #ifdef USE_EMISSIVEMAP uniform sampler2D emissiveMap; #endif vec3 BRDF_Lambert( const in vec3 diffuseColor ) { return RECIPROCAL_PI * diffuseColor; } vec3 F_Schlick( const in vec3 f0, const in float f90, const in float dotVH ) { float fresnel = exp2( ( - 5.55473 * dotVH - 6.98316 ) * dotVH ); return f0 * ( 1.0 - fresnel ) + ( f90 * fresnel ); } float F_Schlick( const in float f0, const in float f90, const in float dotVH ) { float fresnel = exp2( ( - 5.55473 * dotVH - 6.98316 ) * dotVH ); return f0 * ( 1.0 - fresnel ) + ( f90 * fresnel ); } vec3 Schlick_to_F0( const in vec3 f, const in float f90, const in float dotVH ) { float x = clamp( 1.0 - dotVH, 0.0, 1.0 ); float x2 = x * x; float x5 = clamp( x * x2 * x2, 0.0, 0.9999 ); return ( f - vec3( f90 ) * x5 ) / ( 1.0 - x5 ); } float V_GGX_SmithCorrelated( const in float alpha, const in float dotNL, const in float dotNV ) { float a2 = pow2( alpha ); float gv = dotNL * sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNV ) ); float gl = dotNV * sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNL ) ); return 0.5 / max( gv + gl, EPSILON ); } float D_GGX( const in float alpha, const in float dotNH ) { float a2 = pow2( alpha ); float denom = pow2( dotNH ) * ( a2 - 1.0 ) + 1.0; return RECIPROCAL_PI * a2 / pow2( denom ); } vec3 BRDF_GGX( const in vec3 lightDir, const in vec3 viewDir, const in vec3 normal, const in vec3 f0, const in float f90, const in float roughness ) { float alpha = pow2( roughness ); vec3 halfDir = normalize( lightDir + viewDir ); float dotNL = saturate( dot( normal, lightDir ) ); float dotNV = saturate( dot( normal, viewDir ) ); float dotNH = saturate( dot( normal, halfDir ) ); float dotVH = saturate( dot( viewDir, halfDir ) ); vec3 F = F_Schlick( f0, f90, dotVH ); float V = V_GGX_SmithCorrelated( alpha, dotNL, dotNV ); float D = D_GGX( alpha, dotNH ); return F * ( V * D ); } #ifdef USE_IRIDESCENCE vec3 BRDF_GGX_Iridescence( const in vec3 lightDir, const in vec3 viewDir, const in vec3 normal, const in vec3 f0, const in float f90, const in float iridescence, const in vec3 iridescenceFresnel, const in float roughness ) { float alpha = pow2( roughness ); vec3 halfDir = normalize( lightDir + viewDir ); float dotNL = saturate( dot( normal, lightDir ) ); float dotNV = saturate( dot( normal, viewDir ) ); float dotNH = saturate( dot( normal, halfDir ) ); float dotVH = saturate( dot( viewDir, halfDir ) ); vec3 F = mix( F_Schlick( f0, f90, dotVH ), iridescenceFresnel, iridescence ); float V = V_GGX_SmithCorrelated( alpha, dotNL, dotNV ); float D = D_GGX( alpha, dotNH ); return F * ( V * D ); } #endif vec2 LTC_Uv( const in vec3 N, const in vec3 V, const in float roughness ) { const float LUT_SIZE = 64.0; const float LUT_SCALE = ( LUT_SIZE - 1.0 ) / LUT_SIZE; const float LUT_BIAS = 0.5 / LUT_SIZE; float dotNV = saturate( dot( N, V ) ); vec2 uv = vec2( roughness, sqrt( 1.0 - dotNV ) ); uv = uv * LUT_SCALE + LUT_BIAS; return uv; } float LTC_ClippedSphereFormFactor( const in vec3 f ) { float l = length( f ); return max( ( l * l + f.z ) / ( l + 1.0 ), 0.0 ); } vec3 LTC_EdgeVectorFormFactor( const in vec3 v1, const in vec3 v2 ) { float x = dot( v1, v2 ); float y = abs( x ); float a = 0.8543985 + ( 0.4965155 + 0.0145206 * y ) * y; float b = 3.4175940 + ( 4.1616724 + y ) * y; float v = a / b; float theta_sintheta = ( x > 0.0 ) ? v : 0.5 * inversesqrt( max( 1.0 - x * x, 1e-7 ) ) - v; return cross( v1, v2 ) * theta_sintheta; } vec3 LTC_Evaluate( const in vec3 N, const in vec3 V, const in vec3 P, const in mat3 mInv, const in vec3 rectCoords[ 4 ] ) { vec3 v1 = rectCoords[ 1 ] - rectCoords[ 0 ]; vec3 v2 = rectCoords[ 3 ] - rectCoords[ 0 ]; vec3 lightNormal = cross( v1, v2 ); if( dot( lightNormal, P - rectCoords[ 0 ] ) < 0.0 ) return vec3( 0.0 ); vec3 T1, T2; T1 = normalize( V - N * dot( V, N ) ); T2 = - cross( N, T1 ); mat3 mat = mInv * transposeMat3( mat3( T1, T2, N ) ); vec3 coords[ 4 ]; coords[ 0 ] = mat * ( rectCoords[ 0 ] - P ); coords[ 1 ] = mat * ( rectCoords[ 1 ] - P ); coords[ 2 ] = mat * ( rectCoords[ 2 ] - P ); coords[ 3 ] = mat * ( rectCoords[ 3 ] - P ); coords[ 0 ] = normalize( coords[ 0 ] ); coords[ 1 ] = normalize( coords[ 1 ] ); coords[ 2 ] = normalize( coords[ 2 ] ); coords[ 3 ] = normalize( coords[ 3 ] ); vec3 vectorFormFactor = vec3( 0.0 ); vectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 0 ], coords[ 1 ] ); vectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 1 ], coords[ 2 ] ); vectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 2 ], coords[ 3 ] ); vectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 3 ], coords[ 0 ] ); float result = LTC_ClippedSphereFormFactor( vectorFormFactor ); return vec3( result ); } float G_BlinnPhong_Implicit( ) { return 0.25; } float D_BlinnPhong( const in float shininess, const in float dotNH ) { return RECIPROCAL_PI * ( shininess * 0.5 + 1.0 ) * pow( dotNH, shininess ); } vec3 BRDF_BlinnPhong( const in vec3 lightDir, const in vec3 viewDir, const in vec3 normal, const in vec3 specularColor, const in float shininess ) { vec3 halfDir = normalize( lightDir + viewDir ); float dotNH = saturate( dot( normal, halfDir ) ); float dotVH = saturate( dot( viewDir, halfDir ) ); vec3 F = F_Schlick( specularColor, 1.0, dotVH ); float G = G_BlinnPhong_Implicit( ); float D = D_BlinnPhong( shininess, dotNH ); return F * ( G * D ); } #if defined( USE_SHEEN ) float D_Charlie( float roughness, float dotNH ) { float alpha = pow2( roughness ); float invAlpha = 1.0 / alpha; float cos2h = dotNH * dotNH; float sin2h = max( 1.0 - cos2h, 0.0078125 ); return ( 2.0 + invAlpha ) * pow( sin2h, invAlpha * 0.5 ) / ( 2.0 * PI ); } float V_Neubelt( float dotNV, float dotNL ) { return saturate( 1.0 / ( 4.0 * ( dotNL + dotNV - dotNL * dotNV ) ) ); } vec3 BRDF_Sheen( const in vec3 lightDir, const in vec3 viewDir, const in vec3 normal, vec3 sheenColor, const in float sheenRoughness ) { vec3 halfDir = normalize( lightDir + viewDir ); float dotNL = saturate( dot( normal, lightDir ) ); float dotNV = saturate( dot( normal, viewDir ) ); float dotNH = saturate( dot( normal, halfDir ) ); float D = D_Charlie( sheenRoughness, dotNH ); float V = V_Neubelt( dotNV, dotNL ); return sheenColor * ( D * V ); } #endif #ifdef USE_IRIDESCENCE const mat3 XYZ_TO_REC709 = mat3( 3.2404542, -0.9692660, 0.0556434, -1.5371385, 1.8760108, -0.2040259, -0.4985314, 0.0415560, 1.0572252 ); vec3 Fresnel0ToIor( vec3 fresnel0 ) { vec3 sqrtF0 = sqrt( fresnel0 ); return ( vec3( 1.0 ) + sqrtF0 ) / ( vec3( 1.0 ) - sqrtF0 ); } vec3 IorToFresnel0( vec3 transmittedIor, float incidentIor ) { return pow2( ( transmittedIor - vec3( incidentIor ) ) / ( transmittedIor + vec3( incidentIor ) ) ); } float IorToFresnel0( float transmittedIor, float incidentIor ) { return pow2( ( transmittedIor - incidentIor ) / ( transmittedIor + incidentIor )); } vec3 evalSensitivity( float OPD, vec3 shift ) { float phase = 2.0 * PI * OPD * 1.0e-9; vec3 val = vec3( 5.4856e-13, 4.4201e-13, 5.2481e-13 ); vec3 pos = vec3( 1.6810e+06, 1.7953e+06, 2.2084e+06 ); vec3 var = vec3( 4.3278e+09, 9.3046e+09, 6.6121e+09 ); vec3 xyz = val * sqrt( 2.0 * PI * var ) * cos( pos * phase + shift ) * exp( - pow2( phase ) * var ); xyz.x += 9.7470e-14 * sqrt( 2.0 * PI * 4.5282e+09 ) * cos( 2.2399e+06 * phase + shift[ 0 ] ) * exp( - 4.5282e+09 * pow2( phase ) ); xyz /= 1.0685e-7; vec3 rgb = XYZ_TO_REC709 * xyz; return rgb; } vec3 evalIridescence( float outsideIOR, float eta2, float cosTheta1, float thinFilmThickness, vec3 baseF0 ) { vec3 I; float iridescenceIOR = mix( outsideIOR, eta2, smoothstep( 0.0, 0.03, thinFilmThickness ) ); float sinTheta2Sq = pow2( outsideIOR / iridescenceIOR ) * ( 1.0 - pow2( cosTheta1 ) ); float cosTheta2Sq = 1.0 - sinTheta2Sq; if ( cosTheta2Sq < 0.0 ) { return vec3( 1.0 ); } float cosTheta2 = sqrt( cosTheta2Sq ); float R0 = IorToFresnel0( iridescenceIOR, outsideIOR ); float R12 = F_Schlick( R0, 1.0, cosTheta1 ); float R21 = R12; float T121 = 1.0 - R12; float phi12 = 0.0; if ( iridescenceIOR < outsideIOR ) phi12 = PI; float phi21 = PI - phi12; vec3 baseIOR = Fresnel0ToIor( clamp( baseF0, 0.0, 0.9999 ) ); vec3 R1 = IorToFresnel0( baseIOR, iridescenceIOR ); vec3 R23 = F_Schlick( R1, 1.0, cosTheta2 ); vec3 phi23 = vec3( 0.0 ); if ( baseIOR[ 0 ] < iridescenceIOR ) phi23[ 0 ] = PI; if ( baseIOR[ 1 ] < iridescenceIOR ) phi23[ 1 ] = PI; if ( baseIOR[ 2 ] < iridescenceIOR ) phi23[ 2 ] = PI; float OPD = 2.0 * iridescenceIOR * thinFilmThickness * cosTheta2; vec3 phi = vec3( phi21 ) + phi23; vec3 R123 = clamp( R12 * R23, 1e-5, 0.9999 ); vec3 r123 = sqrt( R123 ); vec3 Rs = pow2( T121 ) * R23 / ( vec3( 1.0 ) - R123 ); vec3 C0 = R12 + Rs; I = C0; vec3 Cm = Rs - T121; for ( int m = 1; m <= 2; ++ m ) { Cm *= r123; vec3 Sm = 2.0 * evalSensitivity( float( m ) * OPD, float( m ) * phi ); I += Cm * Sm; } return max( I, vec3( 0.0 ) ); } #endif #ifdef ENVMAP_TYPE_CUBE_UV #define cubeUV_minMipLevel 4.0 #define cubeUV_minTileSize 16.0 float getFace( vec3 direction ) { vec3 absDirection = abs( direction ); float face = - 1.0; if ( absDirection.x > absDirection.z ) { if ( absDirection.x > absDirection.y ) face = direction.x > 0.0 ? 0.0 : 3.0; else face = direction.y > 0.0 ? 1.0 : 4.0; } else { if ( absDirection.z > absDirection.y ) face = direction.z > 0.0 ? 2.0 : 5.0; else face = direction.y > 0.0 ? 1.0 : 4.0; } return face; } vec2 getUV( vec3 direction, float face ) { vec2 uv; if ( face == 0.0 ) { uv = vec2( direction.z, direction.y ) / abs( direction.x ); } else if ( face == 1.0 ) { uv = vec2( - direction.x, - direction.z ) / abs( direction.y ); } else if ( face == 2.0 ) { uv = vec2( - direction.x, direction.y ) / abs( direction.z ); } else if ( face == 3.0 ) { uv = vec2( - direction.z, direction.y ) / abs( direction.x ); } else if ( face == 4.0 ) { uv = vec2( - direction.x, direction.z ) / abs( direction.y ); } else { uv = vec2( direction.x, direction.y ) / abs( direction.z ); } return 0.5 * ( uv + 1.0 ); } vec3 bilinearCubeUV( sampler2D envMap, vec3 direction, float mipInt ) { float face = getFace( direction ); float filterInt = max( cubeUV_minMipLevel - mipInt, 0.0 ); mipInt = max( mipInt, cubeUV_minMipLevel ); float faceSize = exp2( mipInt ); highp vec2 uv = getUV( direction, face ) * ( faceSize - 2.0 ) + 1.0; if ( face > 2.0 ) { uv.y += faceSize; face -= 3.0; } uv.x += face * faceSize; uv.x += filterInt * 3.0 * cubeUV_minTileSize; uv.y += 4.0 * ( exp2( CUBEUV_MAX_MIP ) - faceSize ); uv.x *= CUBEUV_TEXEL_WIDTH; uv.y *= CUBEUV_TEXEL_HEIGHT; #ifdef texture2DGradEXT return texture2DGradEXT( envMap, uv, vec2( 0.0 ), vec2( 0.0 ) ).rgb; #else return texture2D( envMap, uv ).rgb; #endif } #define cubeUV_r0 1.0 #define cubeUV_v0 0.339 #define cubeUV_m0 - 2.0 #define cubeUV_r1 0.8 #define cubeUV_v1 0.276 #define cubeUV_m1 - 1.0 #define cubeUV_r4 0.4 #define cubeUV_v4 0.046 #define cubeUV_m4 2.0 #define cubeUV_r5 0.305 #define cubeUV_v5 0.016 #define cubeUV_m5 3.0 #define cubeUV_r6 0.21 #define cubeUV_v6 0.0038 #define cubeUV_m6 4.0 float roughnessToMip( float roughness ) { float mip = 0.0; if ( roughness >= cubeUV_r1 ) { mip = ( cubeUV_r0 - roughness ) * ( cubeUV_m1 - cubeUV_m0 ) / ( cubeUV_r0 - cubeUV_r1 ) + cubeUV_m0; } else if ( roughness >= cubeUV_r4 ) { mip = ( cubeUV_r1 - roughness ) * ( cubeUV_m4 - cubeUV_m1 ) / ( cubeUV_r1 - cubeUV_r4 ) + cubeUV_m1; } else if ( roughness >= cubeUV_r5 ) { mip = ( cubeUV_r4 - roughness ) * ( cubeUV_m5 - cubeUV_m4 ) / ( cubeUV_r4 - cubeUV_r5 ) + cubeUV_m4; } else if ( roughness >= cubeUV_r6 ) { mip = ( cubeUV_r5 - roughness ) * ( cubeUV_m6 - cubeUV_m5 ) / ( cubeUV_r5 - cubeUV_r6 ) + cubeUV_m5; } else { mip = - 2.0 * log2( 1.16 * roughness ); } return mip; } vec4 textureCubeUV( sampler2D envMap, vec3 sampleDir, float roughness ) { float mip = clamp( roughnessToMip( roughness ), cubeUV_m0, CUBEUV_MAX_MIP ); float mipF = fract( mip ); float mipInt = floor( mip ); vec3 color0 = bilinearCubeUV( envMap, sampleDir, mipInt ); if ( mipF == 0.0 ) { return vec4( color0, 1.0 ); } else { vec3 color1 = bilinearCubeUV( envMap, sampleDir, mipInt + 1.0 ); return vec4( mix( color0, color1, mipF ), 1.0 ); } } #endif #ifdef USE_ENVMAP uniform float envMapIntensity; uniform float flipEnvMap; #ifdef ENVMAP_TYPE_CUBE uniform samplerCube envMap; #else uniform sampler2D envMap; #endif #endif #if defined( USE_ENVMAP ) vec3 getIBLIrradiance( const in vec3 normal ) { #if defined( ENVMAP_TYPE_CUBE_UV ) vec3 worldNormal = inverseTransformDirection( normal, viewMatrix ); vec4 envMapColor = textureCubeUV( envMap, worldNormal, 1.0 ); return PI * envMapColor.rgb * envMapIntensity; #else return vec3( 0.0 ); #endif } vec3 getIBLRadiance( const in vec3 viewDir, const in vec3 normal, const in float roughness ) { #if defined( ENVMAP_TYPE_CUBE_UV ) vec3 reflectVec = reflect( - viewDir, normal ); reflectVec = normalize( mix( reflectVec, normal, roughness * roughness) ); reflectVec = inverseTransformDirection( reflectVec, viewMatrix ); vec4 envMapColor = textureCubeUV( envMap, reflectVec, roughness ); return envMapColor.rgb * envMapIntensity; #else return vec3( 0.0 ); #endif } #endif #ifdef USE_FOG uniform vec3 fogColor; varying float vFogDepth; #ifdef FOG_EXP2 uniform float fogDensity; #else uniform float fogNear; uniform float fogFar; #endif #endif uniform bool receiveShadow; uniform vec3 ambientLightColor; uniform vec3 lightProbe[ 9 ]; vec3 shGetIrradianceAt( in vec3 normal, in vec3 shCoefficients[ 9 ] ) { float x = normal.x, y = normal.y, z = normal.z; vec3 result = shCoefficients[ 0 ] * 0.886227; result += shCoefficients[ 1 ] * 2.0 * 0.511664 * y; result += shCoefficients[ 2 ] * 2.0 * 0.511664 * z; result += shCoefficients[ 3 ] * 2.0 * 0.511664 * x; result += shCoefficients[ 4 ] * 2.0 * 0.429043 * x * y; result += shCoefficients[ 5 ] * 2.0 * 0.429043 * y * z; result += shCoefficients[ 6 ] * ( 0.743125 * z * z - 0.247708 ); result += shCoefficients[ 7 ] * 2.0 * 0.429043 * x * z; result += shCoefficients[ 8 ] * 0.429043 * ( x * x - y * y ); return result; } vec3 getLightProbeIrradiance( const in vec3 lightProbe[ 9 ], const in vec3 normal ) { vec3 worldNormal = inverseTransformDirection( normal, viewMatrix ); vec3 irradiance = shGetIrradianceAt( worldNormal, lightProbe ); return irradiance; } vec3 getAmbientLightIrradiance( const in vec3 ambientLightColor ) { vec3 irradiance = ambientLightColor; return irradiance; } float getDistanceAttenuation( const in float lightDistance, const in float cutoffDistance, const in float decayExponent ) { #if defined ( PHYSICALLY_CORRECT_LIGHTS ) float distanceFalloff = 1.0 / max( pow( lightDistance, decayExponent ), 0.01 ); if ( cutoffDistance > 0.0 ) { distanceFalloff *= pow2( saturate( 1.0 - pow4( lightDistance / cutoffDistance ) ) ); } return distanceFalloff; #else if ( cutoffDistance > 0.0 && decayExponent > 0.0 ) { return pow( saturate( - lightDistance / cutoffDistance + 1.0 ), decayExponent ); } return 1.0; #endif } float getSpotAttenuation( const in float coneCosine, const in float penumbraCosine, const in float angleCosine ) { return smoothstep( coneCosine, penumbraCosine, angleCosine ); } #if 0 > 0 struct DirectionalLight { vec3 direction; vec3 color; }; uniform DirectionalLight directionalLights[ 0 ]; void getDirectionalLightInfo( const in DirectionalLight directionalLight, const in GeometricContext geometry, out IncidentLight light ) { light.color = directionalLight.color; light.direction = directionalLight.direction; light.visible = true; } #endif #if 3 > 0 struct PointLight { vec3 position; vec3 color; float distance; float decay; }; uniform PointLight pointLights[ 3 ]; void getPointLightInfo( const in PointLight pointLight, const in GeometricContext geometry, out IncidentLight light ) { vec3 lVector = pointLight.position - geometry.position; light.direction = normalize( lVector ); float lightDistance = length( lVector ); light.color = pointLight.color; light.color *= getDistanceAttenuation( lightDistance, pointLight.distance, pointLight.decay ); light.visible = ( light.color != vec3( 0.0 ) ); } #endif #if 0 > 0 struct SpotLight { vec3 position; vec3 direction; vec3 color; float distance; float decay; float coneCos; float penumbraCos; }; uniform SpotLight spotLights[ 0 ]; void getSpotLightInfo( const in SpotLight spotLight, const in GeometricContext geometry, out IncidentLight light ) { vec3 lVector = spotLight.position - geometry.position; light.direction = normalize( lVector ); float angleCos = dot( light.direction, spotLight.direction ); float spotAttenuation = getSpotAttenuation( spotLight.coneCos, spotLight.penumbraCos, angleCos ); if ( spotAttenuation > 0.0 ) { float lightDistance = length( lVector ); light.color = spotLight.color * spotAttenuation; light.color *= getDistanceAttenuation( lightDistance, spotLight.distance, spotLight.decay ); light.visible = ( light.color != vec3( 0.0 ) ); } else { light.color = vec3( 0.0 ); light.visible = false; } } #endif #if 0 > 0 struct RectAreaLight { vec3 color; vec3 position; vec3 halfWidth; vec3 halfHeight; }; uniform sampler2D ltc_1; uniform sampler2D ltc_2; uniform RectAreaLight rectAreaLights[ 0 ]; #endif #if 0 > 0 struct HemisphereLight { vec3 direction; vec3 skyColor; vec3 groundColor; }; uniform HemisphereLight hemisphereLights[ 0 ]; vec3 getHemisphereLightIrradiance( const in HemisphereLight hemiLight, const in vec3 normal ) { float dotNL = dot( normal, hemiLight.direction ); float hemiDiffuseWeight = 0.5 * dotNL + 0.5; vec3 irradiance = mix( hemiLight.groundColor, hemiLight.skyColor, hemiDiffuseWeight ); return irradiance; } #endif #ifndef FLAT_SHADED varying vec3 vNormal; #ifdef USE_TANGENT varying vec3 vTangent; varying vec3 vBitangent; #endif #endif struct PhysicalMaterial { vec3 diffuseColor; float roughness; vec3 specularColor; float specularF90; #ifdef USE_CLEARCOAT float clearcoat; float clearcoatRoughness; vec3 clearcoatF0; float clearcoatF90; #endif #ifdef USE_IRIDESCENCE float iridescence; float iridescenceIOR; float iridescenceThickness; vec3 iridescenceFresnel; vec3 iridescenceF0; #endif #ifdef USE_SHEEN vec3 sheenColor; float sheenRoughness; #endif #ifdef IOR float ior; #endif #ifdef USE_TRANSMISSION float transmission; float transmissionAlpha; float thickness; float attenuationDistance; vec3 attenuationColor; #endif }; vec3 clearcoatSpecular = vec3( 0.0 ); vec3 sheenSpecular = vec3( 0.0 ); float IBLSheenBRDF( const in vec3 normal, const in vec3 viewDir, const in float roughness ) { float dotNV = saturate( dot( normal, viewDir ) ); float r2 = roughness * roughness; float a = roughness < 0.25 ? -339.2 * r2 + 161.4 * roughness - 25.9 : -8.48 * r2 + 14.3 * roughness - 9.95; float b = roughness < 0.25 ? 44.0 * r2 - 23.7 * roughness + 3.26 : 1.97 * r2 - 3.27 * roughness + 0.72; float DG = exp( a * dotNV + b ) + ( roughness < 0.25 ? 0.0 : 0.1 * ( roughness - 0.25 ) ); return saturate( DG * RECIPROCAL_PI ); } vec2 DFGApprox( const in vec3 normal, const in vec3 viewDir, const in float roughness ) { float dotNV = saturate( dot( normal, viewDir ) ); const vec4 c0 = vec4( - 1, - 0.0275, - 0.572, 0.022 ); const vec4 c1 = vec4( 1, 0.0425, 1.04, - 0.04 ); vec4 r = roughness * c0 + c1; float a004 = min( r.x * r.x, exp2( - 9.28 * dotNV ) ) * r.x + r.y; vec2 fab = vec2( - 1.04, 1.04 ) * a004 + r.zw; return fab; } vec3 EnvironmentBRDF( const in vec3 normal, const in vec3 viewDir, const in vec3 specularColor, const in float specularF90, const in float roughness ) { vec2 fab = DFGApprox( normal, viewDir, roughness ); return specularColor * fab.x + specularF90 * fab.y; } #ifdef USE_IRIDESCENCE void computeMultiscatteringIridescence( const in vec3 normal, const in vec3 viewDir, const in vec3 specularColor, const in float specularF90, const in float iridescence, const in vec3 iridescenceF0, const in float roughness, inout vec3 singleScatter, inout vec3 multiScatter ) { #else void computeMultiscattering( const in vec3 normal, const in vec3 viewDir, const in vec3 specularColor, const in float specularF90, const in float roughness, inout vec3 singleScatter, inout vec3 multiScatter ) { #endif vec2 fab = DFGApprox( normal, viewDir, roughness ); #ifdef USE_IRIDESCENCE vec3 Fr = mix( specularColor, iridescenceF0, iridescence ); #else vec3 Fr = specularColor; #endif vec3 FssEss = Fr * fab.x + specularF90 * fab.y; float Ess = fab.x + fab.y; float Ems = 1.0 - Ess; vec3 Favg = Fr + ( 1.0 - Fr ) * 0.047619; vec3 Fms = FssEss * Favg / ( 1.0 - Ems * Favg ); singleScatter += FssEss; multiScatter += Fms * Ems; } #if 0 > 0 void RE_Direct_RectArea_Physical( const in RectAreaLight rectAreaLight, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) { vec3 normal = geometry.normal; vec3 viewDir = geometry.viewDir; vec3 position = geometry.position; vec3 lightPos = rectAreaLight.position; vec3 halfWidth = rectAreaLight.halfWidth; vec3 halfHeight = rectAreaLight.halfHeight; vec3 lightColor = rectAreaLight.color; float roughness = material.roughness; vec3 rectCoords[ 4 ]; rectCoords[ 0 ] = lightPos + halfWidth - halfHeight; rectCoords[ 1 ] = lightPos - halfWidth - halfHeight; rectCoords[ 2 ] = lightPos - halfWidth + halfHeight; rectCoords[ 3 ] = lightPos + halfWidth + halfHeight; vec2 uv = LTC_Uv( normal, viewDir, roughness ); vec4 t1 = texture2D( ltc_1, uv ); vec4 t2 = texture2D( ltc_2, uv ); mat3 mInv = mat3( vec3( t1.x, 0, t1.y ), vec3( 0, 1, 0 ), vec3( t1.z, 0, t1.w ) ); vec3 fresnel = ( material.specularColor * t2.x + ( vec3( 1.0 ) - material.specularColor ) * t2.y ); reflectedLight.directSpecular += lightColor * fresnel * LTC_Evaluate( normal, viewDir, position, mInv, rectCoords ); reflectedLight.directDiffuse += lightColor * material.diffuseColor * LTC_Evaluate( normal, viewDir, position, mat3( 1.0 ), rectCoords ); } #endif void RE_Direct_Physical( const in IncidentLight directLight, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) { float dotNL = saturate( dot( geometry.normal, directLight.direction ) ); vec3 irradiance = dotNL * directLight.color; #ifdef USE_CLEARCOAT float dotNLcc = saturate( dot( geometry.clearcoatNormal, directLight.direction ) ); vec3 ccIrradiance = dotNLcc * directLight.color; clearcoatSpecular += ccIrradiance * BRDF_GGX( directLight.direction, geometry.viewDir, geometry.clearcoatNormal, material.clearcoatF0, material.clearcoatF90, material.clearcoatRoughness ); #endif #ifdef USE_SHEEN sheenSpecular += irradiance * BRDF_Sheen( directLight.direction, geometry.viewDir, geometry.normal, material.sheenColor, material.sheenRoughness ); #endif #ifdef USE_IRIDESCENCE reflectedLight.directSpecular += irradiance * BRDF_GGX_Iridescence( directLight.direction, geometry.viewDir, geometry.normal, material.specularColor, material.specularF90, material.iridescence, material.iridescenceFresnel, material.roughness ); #else reflectedLight.directSpecular += irradiance * BRDF_GGX( directLight.direction, geometry.viewDir, geometry.normal, material.specularColor, material.specularF90, material.roughness ); #endif reflectedLight.directDiffuse += irradiance * BRDF_Lambert( material.diffuseColor ); } void RE_IndirectDiffuse_Physical( const in vec3 irradiance, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) { reflectedLight.indirectDiffuse += irradiance * BRDF_Lambert( material.diffuseColor ); } void RE_IndirectSpecular_Physical( const in vec3 radiance, const in vec3 irradiance, const in vec3 clearcoatRadiance, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight) { #ifdef USE_CLEARCOAT clearcoatSpecular += clearcoatRadiance * EnvironmentBRDF( geometry.clearcoatNormal, geometry.viewDir, material.clearcoatF0, material.clearcoatF90, material.clearcoatRoughness ); #endif #ifdef USE_SHEEN sheenSpecular += irradiance * material.sheenColor * IBLSheenBRDF( geometry.normal, geometry.viewDir, material.sheenRoughness ); #endif vec3 singleScattering = vec3( 0.0 ); vec3 multiScattering = vec3( 0.0 ); vec3 cosineWeightedIrradiance = irradiance * RECIPROCAL_PI; #ifdef USE_IRIDESCENCE computeMultiscatteringIridescence( geometry.normal, geometry.viewDir, material.specularColor, material.specularF90, material.iridescence, material.iridescenceFresnel, material.roughness, singleScattering, multiScattering ); #else computeMultiscattering( geometry.normal, geometry.viewDir, material.specularColor, material.specularF90, material.roughness, singleScattering, multiScattering ); #endif vec3 totalScattering = singleScattering + multiScattering; vec3 diffuse = material.diffuseColor * ( 1.0 - max( max( totalScattering.r, totalScattering.g ), totalScattering.b ) ); reflectedLight.indirectSpecular += radiance * singleScattering; reflectedLight.indirectSpecular += multiScattering * cosineWeightedIrradiance; reflectedLight.indirectDiffuse += diffuse * cosineWeightedIrradiance; } #define RE_Direct RE_Direct_Physical #define RE_Direct_RectArea RE_Direct_RectArea_Physical #define RE_IndirectDiffuse RE_IndirectDiffuse_Physical #define RE_IndirectSpecular RE_IndirectSpecular_Physical float computeSpecularOcclusion( const in float dotNV, const in float ambientOcclusion, const in float roughness ) { return saturate( pow( dotNV + ambientOcclusion, exp2( - 16.0 * roughness - 1.0 ) ) - 1.0 + ambientOcclusion ); } #ifdef USE_TRANSMISSION uniform float transmission; uniform float thickness; uniform float attenuationDistance; uniform vec3 attenuationColor; #ifdef USE_TRANSMISSIONMAP uniform sampler2D transmissionMap; #endif #ifdef USE_THICKNESSMAP uniform sampler2D thicknessMap; #endif uniform vec2 transmissionSamplerSize; uniform sampler2D transmissionSamplerMap; uniform mat4 modelMatrix; uniform mat4 projectionMatrix; varying vec3 vWorldPosition; vec3 getVolumeTransmissionRay( const in vec3 n, const in vec3 v, const in float thickness, const in float ior, const in mat4 modelMatrix ) { vec3 refractionVector = refract( - v, normalize( n ), 1.0 / ior ); vec3 modelScale; modelScale.x = length( vec3( modelMatrix[ 0 ].xyz ) ); modelScale.y = length( vec3( modelMatrix[ 1 ].xyz ) ); modelScale.z = length( vec3( modelMatrix[ 2 ].xyz ) ); return normalize( refractionVector ) * thickness * modelScale; } float applyIorToRoughness( const in float roughness, const in float ior ) { return roughness * clamp( ior * 2.0 - 2.0, 0.0, 1.0 ); } vec4 getTransmissionSample( const in vec2 fragCoord, const in float roughness, const in float ior ) { float framebufferLod = log2( transmissionSamplerSize.x ) * applyIorToRoughness( roughness, ior ); #ifdef texture2DLodEXT return texture2DLodEXT( transmissionSamplerMap, fragCoord.xy, framebufferLod ); #else return texture2D( transmissionSamplerMap, fragCoord.xy, framebufferLod ); #endif } vec3 applyVolumeAttenuation( const in vec3 radiance, const in float transmissionDistance, const in vec3 attenuationColor, const in float attenuationDistance ) { if ( isinf( attenuationDistance ) ) { return radiance; } else { vec3 attenuationCoefficient = -log( attenuationColor ) / attenuationDistance; vec3 transmittance = exp( - attenuationCoefficient * transmissionDistance ); return transmittance * radiance; } } vec4 getIBLVolumeRefraction( const in vec3 n, const in vec3 v, const in float roughness, const in vec3 diffuseColor, const in vec3 specularColor, const in float specularF90, const in vec3 position, const in mat4 modelMatrix, const in mat4 viewMatrix, const in mat4 projMatrix, const in float ior, const in float thickness, const in vec3 attenuationColor, const in float attenuationDistance ) { vec3 transmissionRay = getVolumeTransmissionRay( n, v, thickness, ior, modelMatrix ); vec3 refractedRayExit = position + transmissionRay; vec4 ndcPos = projMatrix * viewMatrix * vec4( refractedRayExit, 1.0 ); vec2 refractionCoords = ndcPos.xy / ndcPos.w; refractionCoords += 1.0; refractionCoords /= 2.0; vec4 transmittedLight = getTransmissionSample( refractionCoords, roughness, ior ); vec3 attenuatedColor = applyVolumeAttenuation( transmittedLight.rgb, length( transmissionRay ), attenuationColor, attenuationDistance ); vec3 F = EnvironmentBRDF( n, v, specularColor, specularF90, roughness ); return vec4( ( 1.0 - F ) * attenuatedColor * diffuseColor, transmittedLight.a ); } #endif #if 0 > 0 varying vec4 vSpotLightCoord[ 0 ]; #endif #if 0 > 0 uniform sampler2D spotLightMap[ 0 ]; #endif #ifdef USE_SHADOWMAP #if 0 > 0 uniform sampler2D directionalShadowMap[ 0 ]; varying vec4 vDirectionalShadowCoord[ 0 ]; struct DirectionalLightShadow { float shadowBias; float shadowNormalBias; float shadowRadius; vec2 shadowMapSize; }; uniform DirectionalLightShadow directionalLightShadows[ 0 ]; #endif #if 0 > 0 uniform sampler2D spotShadowMap[ 0 ]; struct SpotLightShadow { float shadowBias; float shadowNormalBias; float shadowRadius; vec2 shadowMapSize; }; uniform SpotLightShadow spotLightShadows[ 0 ]; #endif #if 0 > 0 uniform sampler2D pointShadowMap[ 0 ]; varying vec4 vPointShadowCoord[ 0 ]; struct PointLightShadow { float shadowBias; float shadowNormalBias; float shadowRadius; vec2 shadowMapSize; float shadowCameraNear; float shadowCameraFar; }; uniform PointLightShadow pointLightShadows[ 0 ]; #endif float texture2DCompare( sampler2D depths, vec2 uv, float compare ) { return step( compare, unpackRGBAToDepth( texture2D( depths, uv ) ) ); } vec2 texture2DDistribution( sampler2D shadow, vec2 uv ) { return unpackRGBATo2Half( texture2D( shadow, uv ) ); } float VSMShadow (sampler2D shadow, vec2 uv, float compare ){ float occlusion = 1.0; vec2 distribution = texture2DDistribution( shadow, uv ); float hard_shadow = step( compare , distribution.x ); if (hard_shadow != 1.0 ) { float distance = compare - distribution.x ; float variance = max( 0.00000, distribution.y * distribution.y ); 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 ); } return occlusion; } float getShadow( sampler2D shadowMap, vec2 shadowMapSize, float shadowBias, float shadowRadius, vec4 shadowCoord ) { float shadow = 1.0; shadowCoord.xyz /= shadowCoord.w; shadowCoord.z += shadowBias; bool inFrustum = shadowCoord.x >= 0.0 && shadowCoord.x <= 1.0 && shadowCoord.y >= 0.0 && shadowCoord.y <= 1.0; bool frustumTest = inFrustum && shadowCoord.z <= 1.0; if ( frustumTest ) { #if defined( SHADOWMAP_TYPE_PCF ) vec2 texelSize = vec2( 1.0 ) / shadowMapSize; float dx0 = - texelSize.x * shadowRadius; float dy0 = - texelSize.y * shadowRadius; float dx1 = + texelSize.x * shadowRadius; float dy1 = + texelSize.y * shadowRadius; float dx2 = dx0 / 2.0; float dy2 = dy0 / 2.0; float dx3 = dx1 / 2.0; float dy3 = dy1 / 2.0; shadow = ( texture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, dy0 ), shadowCoord.z ) + texture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy0 ), shadowCoord.z ) + texture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, dy0 ), shadowCoord.z ) + texture2DCompare( shadowMap, shadowCoord.xy + vec2( dx2, dy2 ), shadowCoord.z ) + texture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy2 ), shadowCoord.z ) + texture2DCompare( shadowMap, shadowCoord.xy + vec2( dx3, dy2 ), shadowCoord.z ) + texture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, 0.0 ), shadowCoord.z ) + texture2DCompare( shadowMap, shadowCoord.xy + vec2( dx2, 0.0 ), shadowCoord.z ) + texture2DCompare( shadowMap, shadowCoord.xy, shadowCoord.z ) + texture2DCompare( shadowMap, shadowCoord.xy + vec2( dx3, 0.0 ), shadowCoord.z ) + texture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, 0.0 ), shadowCoord.z ) + texture2DCompare( shadowMap, shadowCoord.xy + vec2( dx2, dy3 ), shadowCoord.z ) + texture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy3 ), shadowCoord.z ) + texture2DCompare( shadowMap, shadowCoord.xy + vec2( dx3, dy3 ), shadowCoord.z ) + texture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, dy1 ), shadowCoord.z ) + texture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy1 ), shadowCoord.z ) + texture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, dy1 ), shadowCoord.z ) ) * ( 1.0 / 17.0 ); #elif defined( SHADOWMAP_TYPE_PCF_SOFT ) vec2 texelSize = vec2( 1.0 ) / shadowMapSize; float dx = texelSize.x; float dy = texelSize.y; vec2 uv = shadowCoord.xy; vec2 f = fract( uv * shadowMapSize + 0.5 ); uv -= f * texelSize; shadow = ( texture2DCompare( shadowMap, uv, shadowCoord.z ) + texture2DCompare( shadowMap, uv + vec2( dx, 0.0 ), shadowCoord.z ) + texture2DCompare( shadowMap, uv + vec2( 0.0, dy ), shadowCoord.z ) + texture2DCompare( shadowMap, uv + texelSize, shadowCoord.z ) + mix( texture2DCompare( shadowMap, uv + vec2( -dx, 0.0 ), shadowCoord.z ), texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, 0.0 ), shadowCoord.z ), f.x ) + mix( texture2DCompare( shadowMap, uv + vec2( -dx, dy ), shadowCoord.z ), texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, dy ), shadowCoord.z ), f.x ) + mix( texture2DCompare( shadowMap, uv + vec2( 0.0, -dy ), shadowCoord.z ), texture2DCompare( shadowMap, uv + vec2( 0.0, 2.0 * dy ), shadowCoord.z ), f.y ) + mix( texture2DCompare( shadowMap, uv + vec2( dx, -dy ), shadowCoord.z ), texture2DCompare( shadowMap, uv + vec2( dx, 2.0 * dy ), shadowCoord.z ), f.y ) + mix( mix( texture2DCompare( shadowMap, uv + vec2( -dx, -dy ), shadowCoord.z ), texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, -dy ), shadowCoord.z ), f.x ), mix( texture2DCompare( shadowMap, uv + vec2( -dx, 2.0 * dy ), shadowCoord.z ), texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, 2.0 * dy ), shadowCoord.z ), f.x ), f.y ) ) * ( 1.0 / 9.0 ); #elif defined( SHADOWMAP_TYPE_VSM ) shadow = VSMShadow( shadowMap, shadowCoord.xy, shadowCoord.z ); #else shadow = texture2DCompare( shadowMap, shadowCoord.xy, shadowCoord.z ); #endif } return shadow; } vec2 cubeToUV( vec3 v, float texelSizeY ) { vec3 absV = abs( v ); float scaleToCube = 1.0 / max( absV.x, max( absV.y, absV.z ) ); absV *= scaleToCube; v *= scaleToCube * ( 1.0 - 2.0 * texelSizeY ); vec2 planar = v.xy; float almostATexel = 1.5 * texelSizeY; float almostOne = 1.0 - almostATexel; if ( absV.z >= almostOne ) { if ( v.z > 0.0 ) planar.x = 4.0 - v.x; } else if ( absV.x >= almostOne ) { float signX = sign( v.x ); planar.x = v.z * signX + 2.0 * signX; } else if ( absV.y >= almostOne ) { float signY = sign( v.y ); planar.x = v.x + 2.0 * signY + 2.0; planar.y = v.z * signY - 2.0; } return vec2( 0.125, 0.25 ) * planar + vec2( 0.375, 0.75 ); } float getPointShadow( sampler2D shadowMap, vec2 shadowMapSize, float shadowBias, float shadowRadius, vec4 shadowCoord, float shadowCameraNear, float shadowCameraFar ) { vec2 texelSize = vec2( 1.0 ) / ( shadowMapSize * vec2( 4.0, 2.0 ) ); vec3 lightToPosition = shadowCoord.xyz; float dp = ( length( lightToPosition ) - shadowCameraNear ) / ( shadowCameraFar - shadowCameraNear ); dp += shadowBias; vec3 bd3D = normalize( lightToPosition ); #if defined( SHADOWMAP_TYPE_PCF ) || defined( SHADOWMAP_TYPE_PCF_SOFT ) || defined( SHADOWMAP_TYPE_VSM ) vec2 offset = vec2( - 1, 1 ) * shadowRadius * texelSize.y; return ( texture2DCompare( shadowMap, cubeToUV( bd3D + offset.xyy, texelSize.y ), dp ) + texture2DCompare( shadowMap, cubeToUV( bd3D + offset.yyy, texelSize.y ), dp ) + texture2DCompare( shadowMap, cubeToUV( bd3D + offset.xyx, texelSize.y ), dp ) + texture2DCompare( shadowMap, cubeToUV( bd3D + offset.yyx, texelSize.y ), dp ) + texture2DCompare( shadowMap, cubeToUV( bd3D, texelSize.y ), dp ) + texture2DCompare( shadowMap, cubeToUV( bd3D + offset.xxy, texelSize.y ), dp ) + texture2DCompare( shadowMap, cubeToUV( bd3D + offset.yxy, texelSize.y ), dp ) + texture2DCompare( shadowMap, cubeToUV( bd3D + offset.xxx, texelSize.y ), dp ) + texture2DCompare( shadowMap, cubeToUV( bd3D + offset.yxx, texelSize.y ), dp ) ) * ( 1.0 / 9.0 ); #else return texture2DCompare( shadowMap, cubeToUV( bd3D, texelSize.y ), dp ); #endif } #endif #ifdef USE_BUMPMAP uniform sampler2D bumpMap; uniform float bumpScale; vec2 dHdxy_fwd() { vec2 dSTdx = dFdx( vUv ); vec2 dSTdy = dFdy( vUv ); float Hll = bumpScale * texture2D( bumpMap, vUv ).x; float dBx = bumpScale * texture2D( bumpMap, vUv + dSTdx ).x - Hll; float dBy = bumpScale * texture2D( bumpMap, vUv + dSTdy ).x - Hll; return vec2( dBx, dBy ); } vec3 perturbNormalArb( vec3 surf_pos, vec3 surf_norm, vec2 dHdxy, float faceDirection ) { vec3 vSigmaX = dFdx( surf_pos.xyz ); vec3 vSigmaY = dFdy( surf_pos.xyz ); vec3 vN = surf_norm; vec3 R1 = cross( vSigmaY, vN ); vec3 R2 = cross( vN, vSigmaX ); float fDet = dot( vSigmaX, R1 ) * faceDirection; vec3 vGrad = sign( fDet ) * ( dHdxy.x * R1 + dHdxy.y * R2 ); return normalize( abs( fDet ) * surf_norm - vGrad ); } #endif #ifdef USE_NORMALMAP uniform sampler2D normalMap; uniform vec2 normalScale; #endif #ifdef OBJECTSPACE_NORMALMAP uniform mat3 normalMatrix; #endif #if ! defined ( USE_TANGENT ) && ( defined ( TANGENTSPACE_NORMALMAP ) || defined ( USE_CLEARCOAT_NORMALMAP ) ) vec3 perturbNormal2Arb( vec3 eye_pos, vec3 surf_norm, vec3 mapN, float faceDirection ) { vec3 q0 = dFdx( eye_pos.xyz ); vec3 q1 = dFdy( eye_pos.xyz ); vec2 st0 = dFdx( vUv.st ); vec2 st1 = dFdy( vUv.st ); vec3 N = surf_norm; vec3 q1perp = cross( q1, N ); vec3 q0perp = cross( N, q0 ); vec3 T = q1perp * st0.x + q0perp * st1.x; vec3 B = q1perp * st0.y + q0perp * st1.y; float det = max( dot( T, T ), dot( B, B ) ); float scale = ( det == 0.0 ) ? 0.0 : faceDirection * inversesqrt( det ); return normalize( T * ( mapN.x * scale ) + B * ( mapN.y * scale ) + N * mapN.z ); } #endif #ifdef USE_CLEARCOATMAP uniform sampler2D clearcoatMap; #endif #ifdef USE_CLEARCOAT_ROUGHNESSMAP uniform sampler2D clearcoatRoughnessMap; #endif #ifdef USE_CLEARCOAT_NORMALMAP uniform sampler2D clearcoatNormalMap; uniform vec2 clearcoatNormalScale; #endif #ifdef USE_IRIDESCENCEMAP uniform sampler2D iridescenceMap; #endif #ifdef USE_IRIDESCENCE_THICKNESSMAP uniform sampler2D iridescenceThicknessMap; #endif #ifdef USE_ROUGHNESSMAP uniform sampler2D roughnessMap; #endif #ifdef USE_METALNESSMAP uniform sampler2D metalnessMap; #endif #if defined( USE_LOGDEPTHBUF ) && defined( USE_LOGDEPTHBUF_EXT ) uniform float logDepthBufFC; varying float vFragDepth; varying float vIsPerspective; #endif #if 0 > 0 varying vec3 vClipPosition; uniform vec4 clippingPlanes[ 0 ]; #endif void main() { #if 0 > 0 vec4 plane; #if 0 < 0 bool clipped = true; if ( clipped ) discard; #endif #endif vec4 diffuseColor = vec4( diffuse, opacity ); ReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) ); vec3 totalEmissiveRadiance = emissive; #if defined( USE_LOGDEPTHBUF ) && defined( USE_LOGDEPTHBUF_EXT ) gl_FragDepthEXT = vIsPerspective == 0.0 ? gl_FragCoord.z : log2( vFragDepth ) * logDepthBufFC * 0.5; #endif #ifdef USE_MAP vec4 sampledDiffuseColor = texture2D( map, vUv ); #ifdef DECODE_VIDEO_TEXTURE sampledDiffuseColor = vec4( mix( pow( sampledDiffuseColor.rgb * 0.9478672986 + vec3( 0.0521327014 ), vec3( 2.4 ) ), sampledDiffuseColor.rgb * 0.0773993808, vec3( lessThanEqual( sampledDiffuseColor.rgb, vec3( 0.04045 ) ) ) ), sampledDiffuseColor.w ); #endif diffuseColor *= sampledDiffuseColor; #endif #if defined( USE_COLOR_ALPHA ) diffuseColor *= vColor; #elif defined( USE_COLOR ) diffuseColor.rgb *= vColor; #endif #ifdef USE_ALPHAMAP diffuseColor.a *= texture2D( alphaMap, vUv ).g; #endif #ifdef USE_ALPHATEST if ( diffuseColor.a < alphaTest ) discard; #endif float roughnessFactor = roughness; #ifdef USE_ROUGHNESSMAP vec4 texelRoughness = texture2D( roughnessMap, vUv ); roughnessFactor *= texelRoughness.g; #endif float metalnessFactor = metalness; #ifdef USE_METALNESSMAP vec4 texelMetalness = texture2D( metalnessMap, vUv ); metalnessFactor *= texelMetalness.b; #endif float faceDirection = gl_FrontFacing ? 1.0 : - 1.0; #ifdef FLAT_SHADED vec3 fdx = dFdx( vViewPosition ); vec3 fdy = dFdy( vViewPosition ); vec3 normal = normalize( cross( fdx, fdy ) ); #else vec3 normal = normalize( vNormal ); #ifdef DOUBLE_SIDED normal = normal * faceDirection; #endif #ifdef USE_TANGENT vec3 tangent = normalize( vTangent ); vec3 bitangent = normalize( vBitangent ); #ifdef DOUBLE_SIDED tangent = tangent * faceDirection; bitangent = bitangent * faceDirection; #endif #if defined( TANGENTSPACE_NORMALMAP ) || defined( USE_CLEARCOAT_NORMALMAP ) mat3 vTBN = mat3( tangent, bitangent, normal ); #endif #endif #endif vec3 geometryNormal = normal; #ifdef OBJECTSPACE_NORMALMAP normal = texture2D( normalMap, vUv ).xyz * 2.0 - 1.0; #ifdef FLIP_SIDED normal = - normal; #endif #ifdef DOUBLE_SIDED normal = normal * faceDirection; #endif normal = normalize( normalMatrix * normal ); #elif defined( TANGENTSPACE_NORMALMAP ) vec3 mapN = texture2D( normalMap, vUv ).xyz * 2.0 - 1.0; mapN.xy *= normalScale; #ifdef USE_TANGENT normal = normalize( vTBN * mapN ); #else normal = perturbNormal2Arb( - vViewPosition, normal, mapN, faceDirection ); #endif #elif defined( USE_BUMPMAP ) normal = perturbNormalArb( - vViewPosition, normal, dHdxy_fwd(), faceDirection ); #endif #ifdef USE_CLEARCOAT vec3 clearcoatNormal = geometryNormal; #endif #ifdef USE_CLEARCOAT_NORMALMAP vec3 clearcoatMapN = texture2D( clearcoatNormalMap, vUv ).xyz * 2.0 - 1.0; clearcoatMapN.xy *= clearcoatNormalScale; #ifdef USE_TANGENT clearcoatNormal = normalize( vTBN * clearcoatMapN ); #else clearcoatNormal = perturbNormal2Arb( - vViewPosition, clearcoatNormal, clearcoatMapN, faceDirection ); #endif #endif #ifdef USE_EMISSIVEMAP vec4 emissiveColor = texture2D( emissiveMap, vUv ); totalEmissiveRadiance *= emissiveColor.rgb; #endif PhysicalMaterial material; material.diffuseColor = diffuseColor.rgb * ( 1.0 - metalnessFactor ); vec3 dxy = max( abs( dFdx( geometryNormal ) ), abs( dFdy( geometryNormal ) ) ); float geometryRoughness = max( max( dxy.x, dxy.y ), dxy.z ); material.roughness = max( roughnessFactor, 0.0525 );material.roughness += geometryRoughness; material.roughness = min( material.roughness, 1.0 ); #ifdef IOR material.ior = ior; #ifdef SPECULAR float specularIntensityFactor = specularIntensity; vec3 specularColorFactor = specularColor; #ifdef USE_SPECULARINTENSITYMAP specularIntensityFactor *= texture2D( specularIntensityMap, vUv ).a; #endif #ifdef USE_SPECULARCOLORMAP specularColorFactor *= texture2D( specularColorMap, vUv ).rgb; #endif material.specularF90 = mix( specularIntensityFactor, 1.0, metalnessFactor ); #else float specularIntensityFactor = 1.0; vec3 specularColorFactor = vec3( 1.0 ); material.specularF90 = 1.0; #endif material.specularColor = mix( min( pow2( ( material.ior - 1.0 ) / ( material.ior + 1.0 ) ) * specularColorFactor, vec3( 1.0 ) ) * specularIntensityFactor, diffuseColor.rgb, metalnessFactor ); #else material.specularColor = mix( vec3( 0.04 ), diffuseColor.rgb, metalnessFactor ); material.specularF90 = 1.0; #endif #ifdef USE_CLEARCOAT material.clearcoat = clearcoat; material.clearcoatRoughness = clearcoatRoughness; material.clearcoatF0 = vec3( 0.04 ); material.clearcoatF90 = 1.0; #ifdef USE_CLEARCOATMAP material.clearcoat *= texture2D( clearcoatMap, vUv ).x; #endif #ifdef USE_CLEARCOAT_ROUGHNESSMAP material.clearcoatRoughness *= texture2D( clearcoatRoughnessMap, vUv ).y; #endif material.clearcoat = saturate( material.clearcoat ); material.clearcoatRoughness = max( material.clearcoatRoughness, 0.0525 ); material.clearcoatRoughness += geometryRoughness; material.clearcoatRoughness = min( material.clearcoatRoughness, 1.0 ); #endif #ifdef USE_IRIDESCENCE material.iridescence = iridescence; material.iridescenceIOR = iridescenceIOR; #ifdef USE_IRIDESCENCEMAP material.iridescence *= texture2D( iridescenceMap, vUv ).r; #endif #ifdef USE_IRIDESCENCE_THICKNESSMAP material.iridescenceThickness = (iridescenceThicknessMaximum - iridescenceThicknessMinimum) * texture2D( iridescenceThicknessMap, vUv ).g + iridescenceThicknessMinimum; #else material.iridescenceThickness = iridescenceThicknessMaximum; #endif #endif #ifdef USE_SHEEN material.sheenColor = sheenColor; #ifdef USE_SHEENCOLORMAP material.sheenColor *= texture2D( sheenColorMap, vUv ).rgb; #endif material.sheenRoughness = clamp( sheenRoughness, 0.07, 1.0 ); #ifdef USE_SHEENROUGHNESSMAP material.sheenRoughness *= texture2D( sheenRoughnessMap, vUv ).a; #endif #endif GeometricContext geometry; geometry.position = - vViewPosition; geometry.normal = normal; geometry.viewDir = ( isOrthographic ) ? vec3( 0, 0, 1 ) : normalize( vViewPosition ); #ifdef USE_CLEARCOAT geometry.clearcoatNormal = clearcoatNormal; #endif #ifdef USE_IRIDESCENCE float dotNVi = saturate( dot( normal, geometry.viewDir ) ); if ( material.iridescenceThickness == 0.0 ) { material.iridescence = 0.0; } else { material.iridescence = saturate( material.iridescence ); } if ( material.iridescence > 0.0 ) { material.iridescenceFresnel = evalIridescence( 1.0, material.iridescenceIOR, dotNVi, material.iridescenceThickness, material.specularColor ); material.iridescenceF0 = Schlick_to_F0( material.iridescenceFresnel, 1.0, dotNVi ); } #endif IncidentLight directLight; #if ( 3 > 0 ) && defined( RE_Direct ) PointLight pointLight; #if defined( USE_SHADOWMAP ) && 0 > 0 PointLightShadow pointLightShadow; #endif pointLight = pointLights[ 0 ]; getPointLightInfo( pointLight, geometry, directLight ); #if defined( USE_SHADOWMAP ) && ( 0 < 0 ) pointLightShadow = pointLightShadows[ 0 ]; directLight.color *= ( directLight.visible && receiveShadow ) ? getPointShadow( pointShadowMap[ 0 ], pointLightShadow.shadowMapSize, pointLightShadow.shadowBias, pointLightShadow.shadowRadius, vPointShadowCoord[ 0 ], pointLightShadow.shadowCameraNear, pointLightShadow.shadowCameraFar ) : 1.0; #endif RE_Direct( directLight, geometry, material, reflectedLight ); pointLight = pointLights[ 1 ]; getPointLightInfo( pointLight, geometry, directLight ); #if defined( USE_SHADOWMAP ) && ( 1 < 0 ) pointLightShadow = pointLightShadows[ 1 ]; directLight.color *= ( directLight.visible && receiveShadow ) ? getPointShadow( pointShadowMap[ 1 ], pointLightShadow.shadowMapSize, pointLightShadow.shadowBias, pointLightShadow.shadowRadius, vPointShadowCoord[ 1 ], pointLightShadow.shadowCameraNear, pointLightShadow.shadowCameraFar ) : 1.0; #endif RE_Direct( directLight, geometry, material, reflectedLight ); pointLight = pointLights[ 2 ]; getPointLightInfo( pointLight, geometry, directLight ); #if defined( USE_SHADOWMAP ) && ( 2 < 0 ) pointLightShadow = pointLightShadows[ 2 ]; directLight.color *= ( directLight.visible && receiveShadow ) ? getPointShadow( pointShadowMap[ 2 ], pointLightShadow.shadowMapSize, pointLightShadow.shadowBias, pointLightShadow.shadowRadius, vPointShadowCoord[ 2 ], pointLightShadow.shadowCameraNear, pointLightShadow.shadowCameraFar ) : 1.0; #endif RE_Direct( directLight, geometry, material, reflectedLight ); #endif #if ( 0 > 0 ) && defined( RE_Direct ) SpotLight spotLight; vec4 spotColor; vec3 spotLightCoord; bool inSpotLightMap; #if defined( USE_SHADOWMAP ) && 0 > 0 SpotLightShadow spotLightShadow; #endif #endif #if ( 0 > 0 ) && defined( RE_Direct ) DirectionalLight directionalLight; #if defined( USE_SHADOWMAP ) && 0 > 0 DirectionalLightShadow directionalLightShadow; #endif #endif #if ( 0 > 0 ) && defined( RE_Direct_RectArea ) RectAreaLight rectAreaLight; #endif #if defined( RE_IndirectDiffuse ) vec3 iblIrradiance = vec3( 0.0 ); vec3 irradiance = getAmbientLightIrradiance( ambientLightColor ); irradiance += getLightProbeIrradiance( lightProbe, geometry.normal ); #if ( 0 > 0 ) #endif #endif #if defined( RE_IndirectSpecular ) vec3 radiance = vec3( 0.0 ); vec3 clearcoatRadiance = vec3( 0.0 ); #endif #if defined( RE_IndirectDiffuse ) #ifdef USE_LIGHTMAP vec4 lightMapTexel = texture2D( lightMap, vUv2 ); vec3 lightMapIrradiance = lightMapTexel.rgb * lightMapIntensity; irradiance += lightMapIrradiance; #endif #if defined( USE_ENVMAP ) && defined( STANDARD ) && defined( ENVMAP_TYPE_CUBE_UV ) iblIrradiance += getIBLIrradiance( geometry.normal ); #endif #endif #if defined( USE_ENVMAP ) && defined( RE_IndirectSpecular ) radiance += getIBLRadiance( geometry.viewDir, geometry.normal, material.roughness ); #ifdef USE_CLEARCOAT clearcoatRadiance += getIBLRadiance( geometry.viewDir, geometry.clearcoatNormal, material.clearcoatRoughness ); #endif #endif #if defined( RE_IndirectDiffuse ) RE_IndirectDiffuse( irradiance, geometry, material, reflectedLight ); #endif #if defined( RE_IndirectSpecular ) RE_IndirectSpecular( radiance, iblIrradiance, clearcoatRadiance, geometry, material, reflectedLight ); #endif #ifdef USE_AOMAP float ambientOcclusion = ( texture2D( aoMap, vUv2 ).r - 1.0 ) * aoMapIntensity + 1.0; reflectedLight.indirectDiffuse *= ambientOcclusion; #if defined( USE_ENVMAP ) && defined( STANDARD ) float dotNV = saturate( dot( geometry.normal, geometry.viewDir ) ); reflectedLight.indirectSpecular *= computeSpecularOcclusion( dotNV, ambientOcclusion, material.roughness ); #endif #endif vec3 totalDiffuse = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse; vec3 totalSpecular = reflectedLight.directSpecular + reflectedLight.indirectSpecular; #ifdef USE_TRANSMISSION material.transmission = transmission; material.transmissionAlpha = 1.0; material.thickness = thickness; material.attenuationDistance = attenuationDistance; material.attenuationColor = attenuationColor; #ifdef USE_TRANSMISSIONMAP material.transmission *= texture2D( transmissionMap, vUv ).r; #endif #ifdef USE_THICKNESSMAP material.thickness *= texture2D( thicknessMap, vUv ).g; #endif vec3 pos = vWorldPosition; vec3 v = normalize( cameraPosition - pos ); vec3 n = inverseTransformDirection( normal, viewMatrix ); vec4 transmission = getIBLVolumeRefraction( n, v, material.roughness, material.diffuseColor, material.specularColor, material.specularF90, pos, modelMatrix, viewMatrix, projectionMatrix, material.ior, material.thickness, material.attenuationColor, material.attenuationDistance ); material.transmissionAlpha = mix( material.transmissionAlpha, transmission.a, material.transmission ); totalDiffuse = mix( totalDiffuse, transmission.rgb, material.transmission ); #endif vec3 outgoingLight = totalDiffuse + totalSpecular + totalEmissiveRadiance; #ifdef USE_SHEEN float sheenEnergyComp = 1.0 - 0.157 * max3( material.sheenColor ); outgoingLight = outgoingLight * sheenEnergyComp + sheenSpecular; #endif #ifdef USE_CLEARCOAT float dotNVcc = saturate( dot( geometry.clearcoatNormal, geometry.viewDir ) ); vec3 Fcc = F_Schlick( material.clearcoatF0, material.clearcoatF90, dotNVcc ); outgoingLight = outgoingLight * ( 1.0 - material.clearcoat * Fcc ) + clearcoatSpecular * material.clearcoat; #endif #ifdef OPAQUE diffuseColor.a = 1.0; #endif #ifdef USE_TRANSMISSION diffuseColor.a *= material.transmissionAlpha + 0.1; #endif gl_FragColor = vec4( outgoingLight, diffuseColor.a ); #if defined( TONE_MAPPING ) gl_FragColor.rgb = toneMapping( gl_FragColor.rgb ); #endif gl_FragColor = linearToOutputTexel( gl_FragColor ); #ifdef USE_FOG #ifdef FOG_EXP2 float fogFactor = 1.0 - exp( - fogDensity * fogDensity * vFogDepth * vFogDepth ); #else float fogFactor = smoothstep( fogNear, fogFar, vFogDepth ); #endif gl_FragColor.rgb = mix( gl_FragColor.rgb, fogColor, fogFactor ); #endif #ifdef PREMULTIPLIED_ALPHA gl_FragColor.rgb *= gl_FragColor.a; #endif #ifdef DITHERING gl_FragColor.rgb = dithering( gl_FragColor.rgb ); #endif }

Tan-Tan's Shaders (1)