distanceRGBA.uniforms
uniforms: UniformsUtils.merge( [
lightPos: { value: new Vector3() }
}
distanceRGBA_vert.glsl
varying vec4 vWorldPosition;
#define PI 3.14159265359
#define PI2 6.28318530718
#define PI_HALF 1.5707963267949
#define RECIPROCAL_PI 0.31830988618
#define RECIPROCAL_PI2 0.15915494
#define LOG2 1.442695
#define EPSILON 1e-6
#define saturate(a) clamp( a, 0.0, 1.0 )
#define whiteCompliment(a) ( 1.0 - saturate( a ) )
float pow2( const in float 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 average( const in vec3 color ) { return dot( color, vec3( 0.3333 ) ); }
// expects values in the range of [0,1]x[0,1], returns values in the [0,1] range.
// do not collapse into a single function per: http://byteblacksmith.com/improvements-to-the-canonical-one-liner-glsl-rand-for-opengl-es-2-0/
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);
}
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;
};
vec3 transformDirection( in vec3 dir, in mat4 matrix ) {
return normalize( ( matrix * vec4( dir, 0.0 ) ).xyz );
}
// http://en.wikibooks.org/wiki/GLSL_Programming/Applying_Matrix_Transformations
vec3 inverseTransformDirection( in vec3 dir, in mat4 matrix ) {
return normalize( ( vec4( dir, 0.0 ) * matrix ).xyz );
}
vec3 projectOnPlane(in vec3 point, in vec3 pointOnPlane, in vec3 planeNormal ) {
float distance = dot( planeNormal, point - pointOnPlane );
return - distance * planeNormal + point;
}
float sideOfPlane( in vec3 point, in vec3 pointOnPlane, in vec3 planeNormal ) {
return sign( dot( point - pointOnPlane, planeNormal ) );
}
vec3 linePlaneIntersect( in vec3 pointOnLine, in vec3 lineDirection, in vec3 pointOnPlane, in vec3 planeNormal ) {
return lineDirection * ( dot( planeNormal, pointOnPlane - pointOnLine ) / dot( planeNormal, lineDirection ) ) + pointOnLine;
}
mat3 transpose( const in mat3 v ) {
mat3 tmp;
tmp[0] = vec3(v[0].x, v[1].x, v[2].x);
tmp[1] = vec3(v[0].y, v[1].y, v[2].y);
tmp[2] = vec3(v[0].z, v[1].z, v[2].z);
return tmp;
}
#ifdef USE_MORPHTARGETS
#ifndef USE_MORPHNORMALS
uniform float morphTargetInfluences[ 8 ];
#else
uniform float morphTargetInfluences[ 4 ];
#endif
#endif
#ifdef USE_SKINNING
uniform mat4 bindMatrix;
uniform mat4 bindMatrixInverse;
#ifdef BONE_TEXTURE
uniform sampler2D boneTexture;
uniform int boneTextureSize;
mat4 getBoneMatrix( const in float i ) {
float j = i * 4.0;
float x = mod( j, float( boneTextureSize ) );
float y = floor( j / float( boneTextureSize ) );
float dx = 1.0 / float( boneTextureSize );
float dy = 1.0 / float( boneTextureSize );
y = dy * ( y + 0.5 );
vec4 v1 = texture2D( boneTexture, vec2( dx * ( x + 0.5 ), y ) );
vec4 v2 = texture2D( boneTexture, vec2( dx * ( x + 1.5 ), y ) );
vec4 v3 = texture2D( boneTexture, vec2( dx * ( x + 2.5 ), y ) );
vec4 v4 = texture2D( boneTexture, vec2( dx * ( x + 3.5 ), y ) );
mat4 bone = mat4( v1, v2, v3, v4 );
return bone;
}
#else
uniform mat4 boneMatrices[ MAX_BONES ];
mat4 getBoneMatrix( const in float i ) {
mat4 bone = boneMatrices[ int(i) ];
return bone;
}
#endif
#endif
#if NUM_CLIPPING_PLANES > 0 && ! defined( PHYSICAL ) && ! defined( PHONG )
varying vec3 vViewPosition;
#endif
void main() {
#ifdef USE_SKINNING
mat4 boneMatX = getBoneMatrix( skinIndex.x );
mat4 boneMatY = getBoneMatrix( skinIndex.y );
mat4 boneMatZ = getBoneMatrix( skinIndex.z );
mat4 boneMatW = getBoneMatrix( skinIndex.w );
#endif
vec3 transformed = vec3( position );
#ifdef USE_MORPHTARGETS
transformed += ( morphTarget0 - position ) * morphTargetInfluences[ 0 ];
transformed += ( morphTarget1 - position ) * morphTargetInfluences[ 1 ];
transformed += ( morphTarget2 - position ) * morphTargetInfluences[ 2 ];
transformed += ( morphTarget3 - position ) * morphTargetInfluences[ 3 ];
#ifndef USE_MORPHNORMALS
transformed += ( morphTarget4 - position ) * morphTargetInfluences[ 4 ];
transformed += ( morphTarget5 - position ) * morphTargetInfluences[ 5 ];
transformed += ( morphTarget6 - position ) * morphTargetInfluences[ 6 ];
transformed += ( morphTarget7 - position ) * morphTargetInfluences[ 7 ];
#endif
#endif
#ifdef USE_SKINNING
vec4 skinVertex = bindMatrix * vec4( transformed, 1.0 );
vec4 skinned = vec4( 0.0 );
skinned += boneMatX * skinVertex * skinWeight.x;
skinned += boneMatY * skinVertex * skinWeight.y;
skinned += boneMatZ * skinVertex * skinWeight.z;
skinned += boneMatW * skinVertex * skinWeight.w;
transformed = ( bindMatrixInverse * skinned ).xyz;
#endif
vec4 mvPosition = modelViewMatrix * vec4( transformed, 1.0 );
gl_Position = projectionMatrix * mvPosition;
#if defined( USE_ENVMAP ) || defined( PHONG ) || defined( PHYSICAL ) || defined( LAMBERT ) || defined ( USE_SHADOWMAP )
vec4 worldPosition = modelMatrix * vec4( transformed, 1.0 );
#endif
#if NUM_CLIPPING_PLANES > 0 && ! defined( PHYSICAL ) && ! defined( PHONG )
vViewPosition = - mvPosition.xyz;
#endif
vWorldPosition = worldPosition;
}
distanceRGBA_frag.glsl
uniform vec3 lightPos;
varying vec4 vWorldPosition;
#define PI 3.14159265359
#define PI2 6.28318530718
#define PI_HALF 1.5707963267949
#define RECIPROCAL_PI 0.31830988618
#define RECIPROCAL_PI2 0.15915494
#define LOG2 1.442695
#define EPSILON 1e-6
#define saturate(a) clamp( a, 0.0, 1.0 )
#define whiteCompliment(a) ( 1.0 - saturate( a ) )
float pow2( const in float 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 average( const in vec3 color ) { return dot( color, vec3( 0.3333 ) ); }
// expects values in the range of [0,1]x[0,1], returns values in the [0,1] range.
// do not collapse into a single function per: http://byteblacksmith.com/improvements-to-the-canonical-one-liner-glsl-rand-for-opengl-es-2-0/
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);
}
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;
};
vec3 transformDirection( in vec3 dir, in mat4 matrix ) {
return normalize( ( matrix * vec4( dir, 0.0 ) ).xyz );
}
// http://en.wikibooks.org/wiki/GLSL_Programming/Applying_Matrix_Transformations
vec3 inverseTransformDirection( in vec3 dir, in mat4 matrix ) {
return normalize( ( vec4( dir, 0.0 ) * matrix ).xyz );
}
vec3 projectOnPlane(in vec3 point, in vec3 pointOnPlane, in vec3 planeNormal ) {
float distance = dot( planeNormal, point - pointOnPlane );
return - distance * planeNormal + point;
}
float sideOfPlane( in vec3 point, in vec3 pointOnPlane, in vec3 planeNormal ) {
return sign( dot( point - pointOnPlane, planeNormal ) );
}
vec3 linePlaneIntersect( in vec3 pointOnLine, in vec3 lineDirection, in vec3 pointOnPlane, in vec3 planeNormal ) {
return lineDirection * ( dot( planeNormal, pointOnPlane - pointOnLine ) / dot( planeNormal, lineDirection ) ) + pointOnLine;
}
mat3 transpose( const in mat3 v ) {
mat3 tmp;
tmp[0] = vec3(v[0].x, v[1].x, v[2].x);
tmp[1] = vec3(v[0].y, v[1].y, v[2].y);
tmp[2] = vec3(v[0].z, v[1].z, v[2].z);
return tmp;
}
vec3 packNormalToRGB( const in vec3 normal ) {
return normalize( normal ) * 0.5 + 0.5;
}
vec3 unpackRGBToNormal( const in vec3 rgb ) {
return 1.0 - 2.0 * rgb.xyz;
}
const float PackUpscale = 256. / 255.; // fraction -> 0..1 (including 1)
const float UnpackDownscale = 255. / 256.; // 0..1 -> fraction (excluding 1)
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; // tidy overflow
return r * PackUpscale;
}
float unpackRGBAToDepth( const in vec4 v ) {
return dot( v, UnpackFactors );
}
// NOTE: viewZ/eyeZ is < 0 when in front of the camera per OpenGL conventions
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 );
}
#if NUM_CLIPPING_PLANES > 0
#if ! defined( PHYSICAL ) && ! defined( PHONG )
varying vec3 vViewPosition;
#endif
uniform vec4 clippingPlanes[ NUM_CLIPPING_PLANES ];
#endif
void main () {
#if NUM_CLIPPING_PLANES > 0
for ( int i = 0; i < UNION_CLIPPING_PLANES; ++ i ) {
vec4 plane = clippingPlanes[ i ];
if ( dot( vViewPosition, plane.xyz ) > plane.w ) discard;
}
#if UNION_CLIPPING_PLANES < NUM_CLIPPING_PLANES
bool clipped = true;
for ( int i = UNION_CLIPPING_PLANES; i < NUM_CLIPPING_PLANES; ++ i ) {
vec4 plane = clippingPlanes[ i ];
clipped = ( dot( vViewPosition, plane.xyz ) > plane.w ) && clipped;
}
if ( clipped ) discard;
#endif
#endif
gl_FragColor = packDepthToRGBA( length( vWorldPosition.xyz - lightPos.xyz ) / 1000.0 );
}
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