File size: 1,040 Bytes
b797337 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 | import { BufferGeometry, Float32BufferAttribute, Mesh, OrthographicCamera } from 'three';
// Helper for passes that need to fill the viewport with a single quad.
const _camera = new OrthographicCamera( - 1, 1, 1, - 1, 0, 1 );
// https://github.com/mrdoob/three.js/pull/21358
class QuadGeometry extends BufferGeometry {
constructor( flipY = false ) {
super();
const uv = flipY === false ? [ 0, - 1, 0, 1, 2, 1 ] : [ 0, 2, 0, 0, 2, 0 ];
this.setAttribute( 'position', new Float32BufferAttribute( [ - 1, 3, 0, - 1, - 1, 0, 3, - 1, 0 ], 3 ) );
this.setAttribute( 'uv', new Float32BufferAttribute( uv, 2 ) );
}
}
const _geometry = new QuadGeometry();
class QuadMesh {
constructor( material = null ) {
this._mesh = new Mesh( _geometry, material );
}
dispose() {
this._mesh.geometry.dispose();
}
render( renderer ) {
renderer.render( this._mesh, _camera );
}
get material() {
return this._mesh.material;
}
set material( value ) {
this._mesh.material = value;
}
}
export default QuadMesh;
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