You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
87 lines
3.7 KiB
87 lines
3.7 KiB
2 years ago
|
( function () {
|
||
|
|
|
||
|
|
class AnaglyphEffect {
|
||
|
|
|
||
|
|
constructor( renderer, width = 512, height = 512 ) {
|
||
|
|
|
||
|
|
// Dubois matrices from https://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.7.6968&rep=rep1&type=pdf#page=4
|
||
|
|
|
||
|
|
this.colorMatrixLeft = new THREE.Matrix3().fromArray( [ 0.456100, - 0.0400822, - 0.0152161, 0.500484, - 0.0378246, - 0.0205971, 0.176381, - 0.0157589, - 0.00546856 ] );
|
||
|
|
this.colorMatrixRight = new THREE.Matrix3().fromArray( [ - 0.0434706, 0.378476, - 0.0721527, - 0.0879388, 0.73364, - 0.112961, - 0.00155529, - 0.0184503, 1.2264 ] );
|
||
|
|
const _camera = new THREE.OrthographicCamera( - 1, 1, 1, - 1, 0, 1 );
|
||
|
|
const _scene = new THREE.Scene();
|
||
|
|
const _stereo = new THREE.StereoCamera();
|
||
|
|
const _params = {
|
||
|
|
minFilter: THREE.LinearFilter,
|
||
|
|
magFilter: THREE.NearestFilter,
|
||
|
|
format: THREE.RGBAFormat
|
||
|
|
};
|
||
|
|
const _renderTargetL = new THREE.WebGLRenderTarget( width, height, _params );
|
||
|
|
const _renderTargetR = new THREE.WebGLRenderTarget( width, height, _params );
|
||
|
|
const _material = new THREE.ShaderMaterial( {
|
||
|
|
uniforms: {
|
||
|
|
'mapLeft': {
|
||
|
|
value: _renderTargetL.texture
|
||
|
|
},
|
||
|
|
'mapRight': {
|
||
|
|
value: _renderTargetR.texture
|
||
|
|
},
|
||
|
|
'colorMatrixLeft': {
|
||
|
|
value: this.colorMatrixLeft
|
||
|
|
},
|
||
|
|
'colorMatrixRight': {
|
||
|
|
value: this.colorMatrixRight
|
||
|
|
}
|
||
|
|
},
|
||
|
|
vertexShader: [ 'varying vec2 vUv;', 'void main() {', ' vUv = vec2( uv.x, uv.y );', ' gl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );', '}' ].join( '\n' ),
|
||
|
|
fragmentShader: [ 'uniform sampler2D mapLeft;', 'uniform sampler2D mapRight;', 'varying vec2 vUv;', 'uniform mat3 colorMatrixLeft;', 'uniform mat3 colorMatrixRight;',
|
||
|
|
// These functions implement sRGB linearization and gamma correction
|
||
|
|
|
||
|
|
'float lin( float c ) {', ' return c <= 0.04045 ? c * 0.0773993808 :', ' pow( c * 0.9478672986 + 0.0521327014, 2.4 );', '}', 'vec4 lin( vec4 c ) {', ' return vec4( lin( c.r ), lin( c.g ), lin( c.b ), c.a );', '}', 'float dev( float c ) {', ' return c <= 0.0031308 ? c * 12.92', ' : pow( c, 0.41666 ) * 1.055 - 0.055;', '}', 'void main() {', ' vec2 uv = vUv;', ' vec4 colorL = lin( texture2D( mapLeft, uv ) );', ' vec4 colorR = lin( texture2D( mapRight, uv ) );', ' vec3 color = clamp(', ' colorMatrixLeft * colorL.rgb +', ' colorMatrixRight * colorR.rgb, 0., 1. );', ' gl_FragColor = vec4(', ' dev( color.r ), dev( color.g ), dev( color.b ),', ' max( colorL.a, colorR.a ) );', '}' ].join( '\n' )
|
||
|
|
} );
|
||
|
|
const _mesh = new THREE.Mesh( new THREE.PlaneGeometry( 2, 2 ), _material );
|
||
|
|
_scene.add( _mesh );
|
||
|
|
this.setSize = function ( width, height ) {
|
||
|
|
|
||
|
|
renderer.setSize( width, height );
|
||
|
|
const pixelRatio = renderer.getPixelRatio();
|
||
|
|
_renderTargetL.setSize( width * pixelRatio, height * pixelRatio );
|
||
|
|
_renderTargetR.setSize( width * pixelRatio, height * pixelRatio );
|
||
|
|
|
||
|
|
};
|
||
|
|
|
||
|
|
this.render = function ( scene, camera ) {
|
||
|
|
|
||
|
|
const currentRenderTarget = renderer.getRenderTarget();
|
||
|
|
if ( scene.matrixWorldAutoUpdate === true ) scene.updateMatrixWorld();
|
||
|
|
if ( camera.parent === null && camera.matrixWorldAutoUpdate === true ) camera.updateMatrixWorld();
|
||
|
|
_stereo.update( camera );
|
||
|
|
renderer.setRenderTarget( _renderTargetL );
|
||
|
|
renderer.clear();
|
||
|
|
renderer.render( scene, _stereo.cameraL );
|
||
|
|
renderer.setRenderTarget( _renderTargetR );
|
||
|
|
renderer.clear();
|
||
|
|
renderer.render( scene, _stereo.cameraR );
|
||
|
|
renderer.setRenderTarget( null );
|
||
|
|
renderer.render( _scene, _camera );
|
||
|
|
renderer.setRenderTarget( currentRenderTarget );
|
||
|
|
|
||
|
|
};
|
||
|
|
|
||
|
|
this.dispose = function () {
|
||
|
|
|
||
|
|
_renderTargetL.dispose();
|
||
|
|
_renderTargetR.dispose();
|
||
|
|
_mesh.geometry.dispose();
|
||
|
|
_mesh.material.dispose();
|
||
|
|
|
||
|
|
};
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
THREE.AnaglyphEffect = AnaglyphEffect;
|
||
|
|
|
||
|
|
} )();
|