64 lines
1.6 KiB
JavaScript
64 lines
1.6 KiB
JavaScript
import { Matrix3 } from 'three';
|
|
import { clamp, nodeObject, Fn, vec4, uv, uniform, max, NodeMaterial } 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 ) );
|