Accueil / npm / three@0.171.0 / examples / jsm / tsl / display / AnaglyphPassNode.js
AnaglyphPassNode.js
import { Matrix3, NodeMaterial } from 'three/webgpu';
import { clamp, nodeObject, Fn, vec4, uv, uniform, max } from 'three/tsl';
import StereoCompositePassNode from './StereoCompositePassNode.js';
class AnaglyphPassNode extends StereoCompositePassNode {
static get type() {
return 'AnaglyphPassNode';
}
constructor( scene, camera ) {
super( scene, camera );
this.isAnaglyphPassNode = true;
// Dubois matrices from https://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.7.6968&rep=rep1&type=pdf#page=4
this._colorMatrixLeft = uniform( new Matrix3().fromArray( [
0.456100, - 0.0400822, - 0.0152161,
0.500484, - 0.0378246, - 0.0205971,
0.176381, - 0.0157589, - 0.00546856
] ) );
this._colorMatrixRight = uniform( new Matrix3().fromArray( [
- 0.0434706, 0.378476, - 0.0721527,
- 0.0879388, 0.73364, - 0.112961,
- 0.00155529, - 0.0184503, 1.2264
] ) );
}
setup( builder ) {
const uvNode = uv();
const anaglyph = Fn( () => {
const colorL = this._mapLeft.uv( uvNode );
const colorR = this._mapRight.uv( uvNode );
const color = clamp( this._colorMatrixLeft.mul( colorL.rgb ).add( this._colorMatrixRight.mul( colorR.rgb ) ) );
return vec4( color.rgb, max( colorL.a, colorR.a ) );
} );
const material = this._material || ( this._material = new NodeMaterial() );
material.fragmentNode = anaglyph().context( builder.getSharedContext() );
material.name = 'Anaglyph';
material.needsUpdate = true;
return super.setup( builder );
}
}
export default AnaglyphPassNode;
export const anaglyphPass = ( scene, camera ) => nodeObject( new AnaglyphPassNode( scene, camera ) );