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File size: 1,345 Bytes
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import {
ShaderMaterial,
UniformsUtils
} from 'three';
import { Pass, FullScreenQuad } from './Pass.js';
import { CopyShader } from '../shaders/CopyShader.js';
class TexturePass extends Pass {
constructor( map, opacity ) {
super();
const shader = CopyShader;
this.map = map;
this.opacity = ( opacity !== undefined ) ? opacity : 1.0;
this.uniforms = UniformsUtils.clone( shader.uniforms );
this.material = new ShaderMaterial( {
uniforms: this.uniforms,
vertexShader: shader.vertexShader,
fragmentShader: shader.fragmentShader,
depthTest: false,
depthWrite: false,
premultipliedAlpha: true
} );
this.needsSwap = false;
this.fsQuad = new FullScreenQuad( null );
}
render( renderer, writeBuffer, readBuffer /*, deltaTime, maskActive */ ) {
const oldAutoClear = renderer.autoClear;
renderer.autoClear = false;
this.fsQuad.material = this.material;
this.uniforms[ 'opacity' ].value = this.opacity;
this.uniforms[ 'tDiffuse' ].value = this.map;
this.material.transparent = ( this.opacity < 1.0 );
renderer.setRenderTarget( this.renderToScreen ? null : readBuffer );
if ( this.clear ) renderer.clear();
this.fsQuad.render( renderer );
renderer.autoClear = oldAutoClear;
}
dispose() {
this.material.dispose();
this.fsQuad.dispose();
}
}
export { TexturePass };
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