/
ShaderLib.js
1328 lines (833 loc) · 33.7 KB
/
ShaderLib.js
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/**
* Webgl Shader Library for three.js
*
* @author alteredq / http://alteredqualia.com/
* @author mrdoob / http://mrdoob.com/
* @author mikael emtinger / http://gomo.se/
*/
THREE.ShaderLib = {
'basic': {
uniforms: THREE.UniformsUtils.merge( [
THREE.UniformsLib[ "common" ],
THREE.UniformsLib[ "fog" ],
THREE.UniformsLib[ "shadowmap" ]
] ),
vertexShader: [
THREE.ShaderChunk[ "map_pars_vertex" ],
THREE.ShaderChunk[ "lightmap_pars_vertex" ],
THREE.ShaderChunk[ "envmap_pars_vertex" ],
THREE.ShaderChunk[ "color_pars_vertex" ],
THREE.ShaderChunk[ "morphtarget_pars_vertex" ],
THREE.ShaderChunk[ "skinning_pars_vertex" ],
THREE.ShaderChunk[ "shadowmap_pars_vertex" ],
THREE.ShaderChunk[ "logdepthbuf_pars_vertex" ],
"void main() {",
THREE.ShaderChunk[ "map_vertex" ],
THREE.ShaderChunk[ "lightmap_vertex" ],
THREE.ShaderChunk[ "color_vertex" ],
THREE.ShaderChunk[ "skinbase_vertex" ],
" #ifdef USE_ENVMAP",
THREE.ShaderChunk[ "morphnormal_vertex" ],
THREE.ShaderChunk[ "skinnormal_vertex" ],
THREE.ShaderChunk[ "defaultnormal_vertex" ],
" #endif",
THREE.ShaderChunk[ "morphtarget_vertex" ],
THREE.ShaderChunk[ "skinning_vertex" ],
THREE.ShaderChunk[ "default_vertex" ],
THREE.ShaderChunk[ "logdepthbuf_vertex" ],
THREE.ShaderChunk[ "worldpos_vertex" ],
THREE.ShaderChunk[ "envmap_vertex" ],
THREE.ShaderChunk[ "shadowmap_vertex" ],
"}"
].join("\n"),
fragmentShader: [
"uniform vec3 diffuse;",
"uniform float opacity;",
THREE.ShaderChunk[ "color_pars_fragment" ],
THREE.ShaderChunk[ "map_pars_fragment" ],
THREE.ShaderChunk[ "alphamap_pars_fragment" ],
THREE.ShaderChunk[ "lightmap_pars_fragment" ],
THREE.ShaderChunk[ "envmap_pars_fragment" ],
THREE.ShaderChunk[ "fog_pars_fragment" ],
THREE.ShaderChunk[ "shadowmap_pars_fragment" ],
THREE.ShaderChunk[ "specularmap_pars_fragment" ],
THREE.ShaderChunk[ "logdepthbuf_pars_fragment" ],
"void main() {",
" gl_FragColor = vec4( diffuse, opacity );",
THREE.ShaderChunk[ "logdepthbuf_fragment" ],
THREE.ShaderChunk[ "map_fragment" ],
THREE.ShaderChunk[ "alphamap_fragment" ],
THREE.ShaderChunk[ "alphatest_fragment" ],
THREE.ShaderChunk[ "specularmap_fragment" ],
THREE.ShaderChunk[ "lightmap_fragment" ],
THREE.ShaderChunk[ "color_fragment" ],
THREE.ShaderChunk[ "envmap_fragment" ],
THREE.ShaderChunk[ "shadowmap_fragment" ],
THREE.ShaderChunk[ "linear_to_gamma_fragment" ],
THREE.ShaderChunk[ "fog_fragment" ],
"}"
].join("\n")
},
'lambert': {
uniforms: THREE.UniformsUtils.merge( [
THREE.UniformsLib[ "common" ],
THREE.UniformsLib[ "fog" ],
THREE.UniformsLib[ "lights" ],
THREE.UniformsLib[ "shadowmap" ],
{
"ambient" : { type: "c", value: new THREE.Color( 0xffffff ) },
"emissive" : { type: "c", value: new THREE.Color( 0x000000 ) },
"wrapRGB" : { type: "v3", value: new THREE.Vector3( 1, 1, 1 ) }
}
] ),
vertexShader: [
"#define LAMBERT",
"varying vec3 vLightFront;",
"#ifdef DOUBLE_SIDED",
" varying vec3 vLightBack;",
"#endif",
THREE.ShaderChunk[ "map_pars_vertex" ],
THREE.ShaderChunk[ "lightmap_pars_vertex" ],
THREE.ShaderChunk[ "envmap_pars_vertex" ],
THREE.ShaderChunk[ "lights_lambert_pars_vertex" ],
THREE.ShaderChunk[ "color_pars_vertex" ],
THREE.ShaderChunk[ "morphtarget_pars_vertex" ],
THREE.ShaderChunk[ "skinning_pars_vertex" ],
THREE.ShaderChunk[ "shadowmap_pars_vertex" ],
THREE.ShaderChunk[ "logdepthbuf_pars_vertex" ],
"void main() {",
THREE.ShaderChunk[ "map_vertex" ],
THREE.ShaderChunk[ "lightmap_vertex" ],
THREE.ShaderChunk[ "color_vertex" ],
THREE.ShaderChunk[ "morphnormal_vertex" ],
THREE.ShaderChunk[ "skinbase_vertex" ],
THREE.ShaderChunk[ "skinnormal_vertex" ],
THREE.ShaderChunk[ "defaultnormal_vertex" ],
THREE.ShaderChunk[ "morphtarget_vertex" ],
THREE.ShaderChunk[ "skinning_vertex" ],
THREE.ShaderChunk[ "default_vertex" ],
THREE.ShaderChunk[ "logdepthbuf_vertex" ],
THREE.ShaderChunk[ "worldpos_vertex" ],
THREE.ShaderChunk[ "envmap_vertex" ],
THREE.ShaderChunk[ "lights_lambert_vertex" ],
THREE.ShaderChunk[ "shadowmap_vertex" ],
"}"
].join("\n"),
fragmentShader: [
"uniform float opacity;",
"varying vec3 vLightFront;",
"#ifdef DOUBLE_SIDED",
" varying vec3 vLightBack;",
"#endif",
THREE.ShaderChunk[ "color_pars_fragment" ],
THREE.ShaderChunk[ "map_pars_fragment" ],
THREE.ShaderChunk[ "alphamap_pars_fragment" ],
THREE.ShaderChunk[ "lightmap_pars_fragment" ],
THREE.ShaderChunk[ "envmap_pars_fragment" ],
THREE.ShaderChunk[ "fog_pars_fragment" ],
THREE.ShaderChunk[ "shadowmap_pars_fragment" ],
THREE.ShaderChunk[ "specularmap_pars_fragment" ],
THREE.ShaderChunk[ "logdepthbuf_pars_fragment" ],
"void main() {",
" gl_FragColor = vec4( vec3( 1.0 ), opacity );",
THREE.ShaderChunk[ "logdepthbuf_fragment" ],
THREE.ShaderChunk[ "map_fragment" ],
THREE.ShaderChunk[ "alphamap_fragment" ],
THREE.ShaderChunk[ "alphatest_fragment" ],
THREE.ShaderChunk[ "specularmap_fragment" ],
" #ifdef DOUBLE_SIDED",
//"float isFront = float( gl_FrontFacing );",
//"gl_FragColor.xyz *= isFront * vLightFront + ( 1.0 - isFront ) * vLightBack;",
" if ( gl_FrontFacing )",
" gl_FragColor.xyz *= vLightFront;",
" else",
" gl_FragColor.xyz *= vLightBack;",
" #else",
" gl_FragColor.xyz *= vLightFront;",
" #endif",
THREE.ShaderChunk[ "lightmap_fragment" ],
THREE.ShaderChunk[ "color_fragment" ],
THREE.ShaderChunk[ "envmap_fragment" ],
THREE.ShaderChunk[ "shadowmap_fragment" ],
THREE.ShaderChunk[ "linear_to_gamma_fragment" ],
THREE.ShaderChunk[ "fog_fragment" ],
"}"
].join("\n")
},
'phong': {
uniforms: THREE.UniformsUtils.merge( [
THREE.UniformsLib[ "common" ],
THREE.UniformsLib[ "bump" ],
THREE.UniformsLib[ "normalmap" ],
THREE.UniformsLib[ "fog" ],
THREE.UniformsLib[ "lights" ],
THREE.UniformsLib[ "shadowmap" ],
{
"ambient" : { type: "c", value: new THREE.Color( 0xffffff ) },
"emissive" : { type: "c", value: new THREE.Color( 0x000000 ) },
"specular" : { type: "c", value: new THREE.Color( 0x111111 ) },
"shininess": { type: "f", value: 30 },
"wrapRGB" : { type: "v3", value: new THREE.Vector3( 1, 1, 1 ) }
}
] ),
vertexShader: [
"#define PHONG",
"varying vec3 vViewPosition;",
"varying vec3 vNormal;",
THREE.ShaderChunk[ "map_pars_vertex" ],
THREE.ShaderChunk[ "lightmap_pars_vertex" ],
THREE.ShaderChunk[ "envmap_pars_vertex" ],
THREE.ShaderChunk[ "lights_phong_pars_vertex" ],
THREE.ShaderChunk[ "color_pars_vertex" ],
THREE.ShaderChunk[ "morphtarget_pars_vertex" ],
THREE.ShaderChunk[ "skinning_pars_vertex" ],
THREE.ShaderChunk[ "shadowmap_pars_vertex" ],
THREE.ShaderChunk[ "logdepthbuf_pars_vertex" ],
"void main() {",
THREE.ShaderChunk[ "map_vertex" ],
THREE.ShaderChunk[ "lightmap_vertex" ],
THREE.ShaderChunk[ "color_vertex" ],
THREE.ShaderChunk[ "morphnormal_vertex" ],
THREE.ShaderChunk[ "skinbase_vertex" ],
THREE.ShaderChunk[ "skinnormal_vertex" ],
THREE.ShaderChunk[ "defaultnormal_vertex" ],
" vNormal = normalize( transformedNormal );",
THREE.ShaderChunk[ "morphtarget_vertex" ],
THREE.ShaderChunk[ "skinning_vertex" ],
THREE.ShaderChunk[ "default_vertex" ],
THREE.ShaderChunk[ "logdepthbuf_vertex" ],
" vViewPosition = -mvPosition.xyz;",
THREE.ShaderChunk[ "worldpos_vertex" ],
THREE.ShaderChunk[ "envmap_vertex" ],
THREE.ShaderChunk[ "lights_phong_vertex" ],
THREE.ShaderChunk[ "shadowmap_vertex" ],
"}"
].join("\n"),
fragmentShader: [
"uniform vec3 diffuse;",
"uniform float opacity;",
"uniform vec3 ambient;",
"uniform vec3 emissive;",
"uniform vec3 specular;",
"uniform float shininess;",
THREE.ShaderChunk[ "color_pars_fragment" ],
THREE.ShaderChunk[ "map_pars_fragment" ],
THREE.ShaderChunk[ "alphamap_pars_fragment" ],
THREE.ShaderChunk[ "lightmap_pars_fragment" ],
THREE.ShaderChunk[ "envmap_pars_fragment" ],
THREE.ShaderChunk[ "fog_pars_fragment" ],
THREE.ShaderChunk[ "lights_phong_pars_fragment" ],
THREE.ShaderChunk[ "shadowmap_pars_fragment" ],
THREE.ShaderChunk[ "bumpmap_pars_fragment" ],
THREE.ShaderChunk[ "normalmap_pars_fragment" ],
THREE.ShaderChunk[ "specularmap_pars_fragment" ],
THREE.ShaderChunk[ "logdepthbuf_pars_fragment" ],
"void main() {",
" gl_FragColor = vec4( vec3( 1.0 ), opacity );",
THREE.ShaderChunk[ "logdepthbuf_fragment" ],
THREE.ShaderChunk[ "map_fragment" ],
THREE.ShaderChunk[ "alphamap_fragment" ],
THREE.ShaderChunk[ "alphatest_fragment" ],
THREE.ShaderChunk[ "specularmap_fragment" ],
THREE.ShaderChunk[ "lights_phong_fragment" ],
THREE.ShaderChunk[ "lightmap_fragment" ],
THREE.ShaderChunk[ "color_fragment" ],
THREE.ShaderChunk[ "envmap_fragment" ],
THREE.ShaderChunk[ "shadowmap_fragment" ],
THREE.ShaderChunk[ "linear_to_gamma_fragment" ],
THREE.ShaderChunk[ "fog_fragment" ],
"}"
].join("\n")
},
'particle_basic': {
uniforms: THREE.UniformsUtils.merge( [
THREE.UniformsLib[ "particle" ],
THREE.UniformsLib[ "shadowmap" ]
] ),
vertexShader: [
"uniform float size;",
"uniform float scale;",
THREE.ShaderChunk[ "color_pars_vertex" ],
THREE.ShaderChunk[ "shadowmap_pars_vertex" ],
THREE.ShaderChunk[ "logdepthbuf_pars_vertex" ],
"void main() {",
THREE.ShaderChunk[ "color_vertex" ],
" vec4 mvPosition = modelViewMatrix * vec4( position, 1.0 );",
" #ifdef USE_SIZEATTENUATION",
" gl_PointSize = size * ( scale / length( mvPosition.xyz ) );",
" #else",
" gl_PointSize = size;",
" #endif",
" gl_Position = projectionMatrix * mvPosition;",
THREE.ShaderChunk[ "logdepthbuf_vertex" ],
THREE.ShaderChunk[ "worldpos_vertex" ],
THREE.ShaderChunk[ "shadowmap_vertex" ],
"}"
].join("\n"),
fragmentShader: [
"uniform vec3 psColor;",
"uniform float opacity;",
THREE.ShaderChunk[ "color_pars_fragment" ],
THREE.ShaderChunk[ "map_particle_pars_fragment" ],
THREE.ShaderChunk[ "fog_pars_fragment" ],
THREE.ShaderChunk[ "shadowmap_pars_fragment" ],
THREE.ShaderChunk[ "logdepthbuf_pars_fragment" ],
"void main() {",
" gl_FragColor = vec4( psColor, opacity );",
THREE.ShaderChunk[ "logdepthbuf_fragment" ],
THREE.ShaderChunk[ "map_particle_fragment" ],
THREE.ShaderChunk[ "alphatest_fragment" ],
THREE.ShaderChunk[ "color_fragment" ],
THREE.ShaderChunk[ "shadowmap_fragment" ],
THREE.ShaderChunk[ "fog_fragment" ],
"}"
].join("\n")
},
'dashed': {
uniforms: THREE.UniformsUtils.merge( [
THREE.UniformsLib[ "common" ],
THREE.UniformsLib[ "fog" ],
{
"scale" : { type: "f", value: 1 },
"dashSize" : { type: "f", value: 1 },
"totalSize": { type: "f", value: 2 }
}
] ),
vertexShader: [
"uniform float scale;",
"attribute float lineDistance;",
"varying float vLineDistance;",
THREE.ShaderChunk[ "color_pars_vertex" ],
THREE.ShaderChunk[ "logdepthbuf_pars_vertex" ],
"void main() {",
THREE.ShaderChunk[ "color_vertex" ],
" vLineDistance = scale * lineDistance;",
" vec4 mvPosition = modelViewMatrix * vec4( position, 1.0 );",
" gl_Position = projectionMatrix * mvPosition;",
THREE.ShaderChunk[ "logdepthbuf_vertex" ],
"}"
].join("\n"),
fragmentShader: [
"uniform vec3 diffuse;",
"uniform float opacity;",
"uniform float dashSize;",
"uniform float totalSize;",
"varying float vLineDistance;",
THREE.ShaderChunk[ "color_pars_fragment" ],
THREE.ShaderChunk[ "fog_pars_fragment" ],
THREE.ShaderChunk[ "logdepthbuf_pars_fragment" ],
"void main() {",
" if ( mod( vLineDistance, totalSize ) > dashSize ) {",
" discard;",
" }",
" gl_FragColor = vec4( diffuse, opacity );",
THREE.ShaderChunk[ "logdepthbuf_fragment" ],
THREE.ShaderChunk[ "color_fragment" ],
THREE.ShaderChunk[ "fog_fragment" ],
"}"
].join("\n")
},
'depth': {
uniforms: {
"mNear": { type: "f", value: 1.0 },
"mFar" : { type: "f", value: 2000.0 },
"opacity" : { type: "f", value: 1.0 }
},
vertexShader: [
THREE.ShaderChunk[ "morphtarget_pars_vertex" ],
THREE.ShaderChunk[ "logdepthbuf_pars_vertex" ],
"void main() {",
THREE.ShaderChunk[ "morphtarget_vertex" ],
THREE.ShaderChunk[ "default_vertex" ],
THREE.ShaderChunk[ "logdepthbuf_vertex" ],
"}"
].join("\n"),
fragmentShader: [
"uniform float mNear;",
"uniform float mFar;",
"uniform float opacity;",
THREE.ShaderChunk[ "logdepthbuf_pars_fragment" ],
"void main() {",
THREE.ShaderChunk[ "logdepthbuf_fragment" ],
" #ifdef USE_LOGDEPTHBUF_EXT",
" float depth = gl_FragDepthEXT / gl_FragCoord.w;",
" #else",
" float depth = gl_FragCoord.z / gl_FragCoord.w;",
" #endif",
" float color = 1.0 - smoothstep( mNear, mFar, depth );",
" gl_FragColor = vec4( vec3( color ), opacity );",
"}"
].join("\n")
},
'normal': {
uniforms: {
"opacity" : { type: "f", value: 1.0 }
},
vertexShader: [
"varying vec3 vNormal;",
THREE.ShaderChunk[ "morphtarget_pars_vertex" ],
THREE.ShaderChunk[ "logdepthbuf_pars_vertex" ],
"void main() {",
" vNormal = normalize( normalMatrix * normal );",
THREE.ShaderChunk[ "morphtarget_vertex" ],
THREE.ShaderChunk[ "default_vertex" ],
THREE.ShaderChunk[ "logdepthbuf_vertex" ],
"}"
].join("\n"),
fragmentShader: [
"uniform float opacity;",
"varying vec3 vNormal;",
THREE.ShaderChunk[ "logdepthbuf_pars_fragment" ],
"void main() {",
" gl_FragColor = vec4( 0.5 * normalize( vNormal ) + 0.5, opacity );",
THREE.ShaderChunk[ "logdepthbuf_fragment" ],
"}"
].join("\n")
},
/* -------------------------------------------------------------------------
// Normal map shader
// - Blinn-Phong
// - normal + diffuse + specular + AO + displacement + reflection + shadow maps
// - point and directional lights (use with "lights: true" material option)
------------------------------------------------------------------------- */
'normalmap' : {
uniforms: THREE.UniformsUtils.merge( [
THREE.UniformsLib[ "fog" ],
THREE.UniformsLib[ "lights" ],
THREE.UniformsLib[ "shadowmap" ],
{
"enableAO" : { type: "i", value: 0 },
"enableDiffuse" : { type: "i", value: 0 },
"enableSpecular" : { type: "i", value: 0 },
"enableReflection" : { type: "i", value: 0 },
"enableDisplacement": { type: "i", value: 0 },
"tDisplacement": { type: "t", value: null }, // must go first as this is vertex texture
"tDiffuse" : { type: "t", value: null },
"tCube" : { type: "t", value: null },
"tNormal" : { type: "t", value: null },
"tSpecular" : { type: "t", value: null },
"tAO" : { type: "t", value: null },
"uNormalScale": { type: "v2", value: new THREE.Vector2( 1, 1 ) },
"uDisplacementBias": { type: "f", value: 0.0 },
"uDisplacementScale": { type: "f", value: 1.0 },
"diffuse": { type: "c", value: new THREE.Color( 0xffffff ) },
"specular": { type: "c", value: new THREE.Color( 0x111111 ) },
"ambient": { type: "c", value: new THREE.Color( 0xffffff ) },
"shininess": { type: "f", value: 30 },
"opacity": { type: "f", value: 1 },
"useRefract": { type: "i", value: 0 },
"refractionRatio": { type: "f", value: 0.98 },
"reflectivity": { type: "f", value: 0.5 },
"uOffset" : { type: "v2", value: new THREE.Vector2( 0, 0 ) },
"uRepeat" : { type: "v2", value: new THREE.Vector2( 1, 1 ) },
"wrapRGB" : { type: "v3", value: new THREE.Vector3( 1, 1, 1 ) }
}
] ),
fragmentShader: [
"uniform vec3 ambient;",
"uniform vec3 diffuse;",
"uniform vec3 specular;",
"uniform float shininess;",
"uniform float opacity;",
"uniform bool enableDiffuse;",
"uniform bool enableSpecular;",
"uniform bool enableAO;",
"uniform bool enableReflection;",
"uniform sampler2D tDiffuse;",
"uniform sampler2D tNormal;",
"uniform sampler2D tSpecular;",
"uniform sampler2D tAO;",
"uniform samplerCube tCube;",
"uniform vec2 uNormalScale;",
"uniform bool useRefract;",
"uniform float refractionRatio;",
"uniform float reflectivity;",
"varying vec3 vTangent;",
"varying vec3 vBinormal;",
"varying vec3 vNormal;",
"varying vec2 vUv;",
"uniform vec3 ambientLightColor;",
"#if MAX_DIR_LIGHTS > 0",
" uniform vec3 directionalLightColor[ MAX_DIR_LIGHTS ];",
" uniform vec3 directionalLightDirection[ MAX_DIR_LIGHTS ];",
"#endif",
"#if MAX_HEMI_LIGHTS > 0",
" uniform vec3 hemisphereLightSkyColor[ MAX_HEMI_LIGHTS ];",
" uniform vec3 hemisphereLightGroundColor[ MAX_HEMI_LIGHTS ];",
" uniform vec3 hemisphereLightDirection[ MAX_HEMI_LIGHTS ];",
"#endif",
"#if MAX_POINT_LIGHTS > 0",
" uniform vec3 pointLightColor[ MAX_POINT_LIGHTS ];",
" uniform vec3 pointLightPosition[ MAX_POINT_LIGHTS ];",
" uniform float pointLightDistance[ MAX_POINT_LIGHTS ];",
"#endif",
"#if MAX_SPOT_LIGHTS > 0",
" uniform vec3 spotLightColor[ MAX_SPOT_LIGHTS ];",
" uniform vec3 spotLightPosition[ MAX_SPOT_LIGHTS ];",
" uniform vec3 spotLightDirection[ MAX_SPOT_LIGHTS ];",
" uniform float spotLightAngleCos[ MAX_SPOT_LIGHTS ];",
" uniform float spotLightExponent[ MAX_SPOT_LIGHTS ];",
" uniform float spotLightDistance[ MAX_SPOT_LIGHTS ];",
"#endif",
"#ifdef WRAP_AROUND",
" uniform vec3 wrapRGB;",
"#endif",
"varying vec3 vWorldPosition;",
"varying vec3 vViewPosition;",
THREE.ShaderChunk[ "shadowmap_pars_fragment" ],
THREE.ShaderChunk[ "fog_pars_fragment" ],
THREE.ShaderChunk[ "logdepthbuf_pars_fragment" ],
"void main() {",
THREE.ShaderChunk[ "logdepthbuf_fragment" ],
" gl_FragColor = vec4( vec3( 1.0 ), opacity );",
" vec3 specularTex = vec3( 1.0 );",
" vec3 normalTex = texture2D( tNormal, vUv ).xyz * 2.0 - 1.0;",
" normalTex.xy *= uNormalScale;",
" normalTex = normalize( normalTex );",
" if( enableDiffuse ) {",
" #ifdef GAMMA_INPUT",
" vec4 texelColor = texture2D( tDiffuse, vUv );",
" texelColor.xyz *= texelColor.xyz;",
" gl_FragColor = gl_FragColor * texelColor;",
" #else",
" gl_FragColor = gl_FragColor * texture2D( tDiffuse, vUv );",
" #endif",
" }",
" if( enableAO ) {",
" #ifdef GAMMA_INPUT",
" vec4 aoColor = texture2D( tAO, vUv );",
" aoColor.xyz *= aoColor.xyz;",
" gl_FragColor.xyz = gl_FragColor.xyz * aoColor.xyz;",
" #else",
" gl_FragColor.xyz = gl_FragColor.xyz * texture2D( tAO, vUv ).xyz;",
" #endif",
" }",
THREE.ShaderChunk[ "alphatest_fragment" ],
" if( enableSpecular )",
" specularTex = texture2D( tSpecular, vUv ).xyz;",
" mat3 tsb = mat3( normalize( vTangent ), normalize( vBinormal ), normalize( vNormal ) );",
" vec3 finalNormal = tsb * normalTex;",
" #ifdef FLIP_SIDED",
" finalNormal = -finalNormal;",
" #endif",
" vec3 normal = normalize( finalNormal );",
" vec3 viewPosition = normalize( vViewPosition );",
// point lights
" #if MAX_POINT_LIGHTS > 0",
" vec3 pointDiffuse = vec3( 0.0 );",
" vec3 pointSpecular = vec3( 0.0 );",
" for ( int i = 0; i < MAX_POINT_LIGHTS; i ++ ) {",
" vec4 lPosition = viewMatrix * vec4( pointLightPosition[ i ], 1.0 );",
" vec3 pointVector = lPosition.xyz + vViewPosition.xyz;",
" float pointDistance = 1.0;",
" if ( pointLightDistance[ i ] > 0.0 )",
" pointDistance = 1.0 - min( ( length( pointVector ) / pointLightDistance[ i ] ), 1.0 );",
" pointVector = normalize( pointVector );",
// diffuse
" #ifdef WRAP_AROUND",
" float pointDiffuseWeightFull = max( dot( normal, pointVector ), 0.0 );",
" float pointDiffuseWeightHalf = max( 0.5 * dot( normal, pointVector ) + 0.5, 0.0 );",
" vec3 pointDiffuseWeight = mix( vec3( pointDiffuseWeightFull ), vec3( pointDiffuseWeightHalf ), wrapRGB );",
" #else",
" float pointDiffuseWeight = max( dot( normal, pointVector ), 0.0 );",
" #endif",
" pointDiffuse += pointDistance * pointLightColor[ i ] * diffuse * pointDiffuseWeight;",
// specular
" vec3 pointHalfVector = normalize( pointVector + viewPosition );",
" float pointDotNormalHalf = max( dot( normal, pointHalfVector ), 0.0 );",
" float pointSpecularWeight = specularTex.r * max( pow( pointDotNormalHalf, shininess ), 0.0 );",
" float specularNormalization = ( shininess + 2.0 ) / 8.0;",
" vec3 schlick = specular + vec3( 1.0 - specular ) * pow( max( 1.0 - dot( pointVector, pointHalfVector ), 0.0 ), 5.0 );",
" pointSpecular += schlick * pointLightColor[ i ] * pointSpecularWeight * pointDiffuseWeight * pointDistance * specularNormalization;",
" }",
" #endif",
// spot lights
" #if MAX_SPOT_LIGHTS > 0",
" vec3 spotDiffuse = vec3( 0.0 );",
" vec3 spotSpecular = vec3( 0.0 );",
" for ( int i = 0; i < MAX_SPOT_LIGHTS; i ++ ) {",
" vec4 lPosition = viewMatrix * vec4( spotLightPosition[ i ], 1.0 );",
" vec3 spotVector = lPosition.xyz + vViewPosition.xyz;",
" float spotDistance = 1.0;",
" if ( spotLightDistance[ i ] > 0.0 )",
" spotDistance = 1.0 - min( ( length( spotVector ) / spotLightDistance[ i ] ), 1.0 );",
" spotVector = normalize( spotVector );",
" float spotEffect = dot( spotLightDirection[ i ], normalize( spotLightPosition[ i ] - vWorldPosition ) );",
" if ( spotEffect > spotLightAngleCos[ i ] ) {",
" spotEffect = max( pow( max( spotEffect, 0.0 ), spotLightExponent[ i ] ), 0.0 );",
// diffuse
" #ifdef WRAP_AROUND",
" float spotDiffuseWeightFull = max( dot( normal, spotVector ), 0.0 );",
" float spotDiffuseWeightHalf = max( 0.5 * dot( normal, spotVector ) + 0.5, 0.0 );",
" vec3 spotDiffuseWeight = mix( vec3( spotDiffuseWeightFull ), vec3( spotDiffuseWeightHalf ), wrapRGB );",
" #else",
" float spotDiffuseWeight = max( dot( normal, spotVector ), 0.0 );",
" #endif",
" spotDiffuse += spotDistance * spotLightColor[ i ] * diffuse * spotDiffuseWeight * spotEffect;",
// specular
" vec3 spotHalfVector = normalize( spotVector + viewPosition );",
" float spotDotNormalHalf = max( dot( normal, spotHalfVector ), 0.0 );",
" float spotSpecularWeight = specularTex.r * max( pow( spotDotNormalHalf, shininess ), 0.0 );",
" float specularNormalization = ( shininess + 2.0 ) / 8.0;",
" vec3 schlick = specular + vec3( 1.0 - specular ) * pow( max( 1.0 - dot( spotVector, spotHalfVector ), 0.0 ), 5.0 );",
" spotSpecular += schlick * spotLightColor[ i ] * spotSpecularWeight * spotDiffuseWeight * spotDistance * specularNormalization * spotEffect;",
" }",
" }",
" #endif",
// directional lights
" #if MAX_DIR_LIGHTS > 0",
" vec3 dirDiffuse = vec3( 0.0 );",
" vec3 dirSpecular = vec3( 0.0 );",
" for( int i = 0; i < MAX_DIR_LIGHTS; i++ ) {",
" vec4 lDirection = viewMatrix * vec4( directionalLightDirection[ i ], 0.0 );",
" vec3 dirVector = normalize( lDirection.xyz );",
// diffuse
" #ifdef WRAP_AROUND",
" float directionalLightWeightingFull = max( dot( normal, dirVector ), 0.0 );",
" float directionalLightWeightingHalf = max( 0.5 * dot( normal, dirVector ) + 0.5, 0.0 );",
" vec3 dirDiffuseWeight = mix( vec3( directionalLightWeightingFull ), vec3( directionalLightWeightingHalf ), wrapRGB );",
" #else",
" float dirDiffuseWeight = max( dot( normal, dirVector ), 0.0 );",
" #endif",
" dirDiffuse += directionalLightColor[ i ] * diffuse * dirDiffuseWeight;",
// specular
" vec3 dirHalfVector = normalize( dirVector + viewPosition );",
" float dirDotNormalHalf = max( dot( normal, dirHalfVector ), 0.0 );",
" float dirSpecularWeight = specularTex.r * max( pow( dirDotNormalHalf, shininess ), 0.0 );",
" float specularNormalization = ( shininess + 2.0 ) / 8.0;",
" vec3 schlick = specular + vec3( 1.0 - specular ) * pow( max( 1.0 - dot( dirVector, dirHalfVector ), 0.0 ), 5.0 );",
" dirSpecular += schlick * directionalLightColor[ i ] * dirSpecularWeight * dirDiffuseWeight * specularNormalization;",
" }",
" #endif",
// hemisphere lights
" #if MAX_HEMI_LIGHTS > 0",
" vec3 hemiDiffuse = vec3( 0.0 );",
" vec3 hemiSpecular = vec3( 0.0 );" ,
" for( int i = 0; i < MAX_HEMI_LIGHTS; i ++ ) {",
" vec4 lDirection = viewMatrix * vec4( hemisphereLightDirection[ i ], 0.0 );",
" vec3 lVector = normalize( lDirection.xyz );",
// diffuse
" float dotProduct = dot( normal, lVector );",
" float hemiDiffuseWeight = 0.5 * dotProduct + 0.5;",
" vec3 hemiColor = mix( hemisphereLightGroundColor[ i ], hemisphereLightSkyColor[ i ], hemiDiffuseWeight );",
" hemiDiffuse += diffuse * hemiColor;",
// specular (sky light)
" vec3 hemiHalfVectorSky = normalize( lVector + viewPosition );",
" float hemiDotNormalHalfSky = 0.5 * dot( normal, hemiHalfVectorSky ) + 0.5;",
" float hemiSpecularWeightSky = specularTex.r * max( pow( max( hemiDotNormalHalfSky, 0.0 ), shininess ), 0.0 );",
// specular (ground light)
" vec3 lVectorGround = -lVector;",
" vec3 hemiHalfVectorGround = normalize( lVectorGround + viewPosition );",
" float hemiDotNormalHalfGround = 0.5 * dot( normal, hemiHalfVectorGround ) + 0.5;",
" float hemiSpecularWeightGround = specularTex.r * max( pow( max( hemiDotNormalHalfGround, 0.0 ), shininess ), 0.0 );",
" float dotProductGround = dot( normal, lVectorGround );",
" float specularNormalization = ( shininess + 2.0 ) / 8.0;",
" vec3 schlickSky = specular + vec3( 1.0 - specular ) * pow( max( 1.0 - dot( lVector, hemiHalfVectorSky ), 0.0 ), 5.0 );",
" vec3 schlickGround = specular + vec3( 1.0 - specular ) * pow( max( 1.0 - dot( lVectorGround, hemiHalfVectorGround ), 0.0 ), 5.0 );",
" hemiSpecular += hemiColor * specularNormalization * ( schlickSky * hemiSpecularWeightSky * max( dotProduct, 0.0 ) + schlickGround * hemiSpecularWeightGround * max( dotProductGround, 0.0 ) );",
" }",
" #endif",
// all lights contribution summation
" vec3 totalDiffuse = vec3( 0.0 );",
" vec3 totalSpecular = vec3( 0.0 );",
" #if MAX_DIR_LIGHTS > 0",
" totalDiffuse += dirDiffuse;",
" totalSpecular += dirSpecular;",
" #endif",
" #if MAX_HEMI_LIGHTS > 0",
" totalDiffuse += hemiDiffuse;",
" totalSpecular += hemiSpecular;",