| import { BufferGeometry, Float32BufferAttribute, Mesh, OrthographicCamera } from 'three'; |
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| |
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| const _camera = new OrthographicCamera( - 1, 1, 1, - 1, 0, 1 ); |
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| |
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| class QuadGeometry extends BufferGeometry { |
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| constructor( flipY = false ) { |
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| super(); |
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| const uv = flipY === false ? [ 0, - 1, 0, 1, 2, 1 ] : [ 0, 2, 0, 0, 2, 0 ]; |
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| this.setAttribute( 'position', new Float32BufferAttribute( [ - 1, 3, 0, - 1, - 1, 0, 3, - 1, 0 ], 3 ) ); |
| this.setAttribute( 'uv', new Float32BufferAttribute( uv, 2 ) ); |
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| } |
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| } |
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| const _geometry = new QuadGeometry(); |
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| class QuadMesh { |
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| constructor( material = null ) { |
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| this._mesh = new Mesh( _geometry, material ); |
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| } |
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| dispose() { |
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| this._mesh.geometry.dispose(); |
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| } |
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| render( renderer ) { |
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| renderer.render( this._mesh, _camera ); |
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| } |
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| get material() { |
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| return this._mesh.material; |
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| } |
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| set material( value ) { |
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| this._mesh.material = value; |
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| } |
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| } |
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| export default QuadMesh; |
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|
