three 基础库
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2 years ago
( function () {
class RenderPass extends THREE.Pass {
constructor( scene, camera, overrideMaterial, clearColor, clearAlpha ) {
super();
this.scene = scene;
this.camera = camera;
this.overrideMaterial = overrideMaterial;
this.clearColor = clearColor;
this.clearAlpha = clearAlpha !== undefined ? clearAlpha : 0;
this.clear = true;
this.clearDepth = false;
this.needsSwap = false;
this._oldClearColor = new THREE.Color();
}
render( renderer, writeBuffer, readBuffer
/*, deltaTime, maskActive */
) {
const oldAutoClear = renderer.autoClear;
renderer.autoClear = false;
let oldClearAlpha, oldOverrideMaterial;
if ( this.overrideMaterial !== undefined ) {
oldOverrideMaterial = this.scene.overrideMaterial;
this.scene.overrideMaterial = this.overrideMaterial;
}
if ( this.clearColor ) {
renderer.getClearColor( this._oldClearColor );
oldClearAlpha = renderer.getClearAlpha();
renderer.setClearColor( this.clearColor, this.clearAlpha );
}
if ( this.clearDepth ) {
renderer.clearDepth();
}
renderer.setRenderTarget( this.renderToScreen ? null : readBuffer ); // TODO: Avoid using autoClear properties, see https://github.com/mrdoob/three.js/pull/15571#issuecomment-465669600
if ( this.clear ) renderer.clear( renderer.autoClearColor, renderer.autoClearDepth, renderer.autoClearStencil );
renderer.render( this.scene, this.camera );
if ( this.clearColor ) {
renderer.setClearColor( this._oldClearColor, oldClearAlpha );
}
if ( this.overrideMaterial !== undefined ) {
this.scene.overrideMaterial = oldOverrideMaterial;
}
renderer.autoClear = oldAutoClear;
}
}
THREE.RenderPass = RenderPass;
} )();