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/**
* @author mrdoob / http://mrdoob.com/
*/
THREE.ClearPass = function ( clearColor, clearAlpha ) {
THREE.Pass.call( this );
this.needsSwap = false;
this.clearColor = ( clearColor !== undefined ) ? clearColor : 0x000000;
this.clearAlpha = ( clearAlpha !== undefined ) ? clearAlpha : 0;
};
THREE.ClearPass.prototype = Object.assign( Object.create( THREE.Pass.prototype ), {
constructor: THREE.ClearPass,
render: function ( renderer, writeBuffer, readBuffer, deltaTime, maskActive ) {
var oldClearColor, oldClearAlpha;
if ( this.clearColor ) {
oldClearColor = renderer.getClearColor().getHex();
oldClearAlpha = renderer.getClearAlpha();
renderer.setClearColor( this.clearColor, this.clearAlpha );
}
renderer.setRenderTarget( this.renderToScreen ? null : readBuffer );
renderer.clear();
if ( this.clearColor ) {
renderer.setClearColor( oldClearColor, oldClearAlpha );
}
}
} );
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