three
Version:
JavaScript 3D library
56 lines (30 loc) • 1.19 kB
JavaScript
import { BufferGeometry } from '../../core/BufferGeometry.js';
import { Float32BufferAttribute } from '../../core/BufferAttribute.js';
import { Mesh } from '../../objects/Mesh.js';
import { OrthographicCamera } from '../../cameras/OrthographicCamera.js';
// Helper for passes that need to fill the viewport with a single quad.
const _camera = /*@__PURE__*/ 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 = /*@__PURE__*/ new QuadGeometry();
class QuadMesh extends Mesh {
constructor( material = null ) {
super( _geometry, material );
this.camera = _camera;
this.isQuadMesh = true;
}
renderAsync( renderer ) {
return renderer.renderAsync( this, _camera );
}
render( renderer ) {
renderer.render( this, _camera );
}
}
export default QuadMesh;