javascript - 三个js EffectComposer + BloomPass 不起作用

Question

我一生都无法弄清楚出了什么问题(尤其是这两个 .js 文件没有文档记录)，但我已将 EffectComposer 和 BloomPass 包含在我的项目中，并尝试像这样调用它:

parameters = { bloomStrength: 1.3, bloomFactor: 1.0,}

            var renderPass = new THREE.RenderPass(scene, camera);
            var copyPass = new THREE.ShaderPass(THREE.CopyShader);
            copyPass.renderToScreen = true;

            composer = new THREE.EffectComposer ( renderer );
            composer.addPass(renderPass);
            composer.addPass(copyPass);

            var effectBloom = new THREE.BloomPass ( 3, 25, 5, 256);
            composer.addPass (effectBloom);

BloomPass.js 本身抛出一个错误(不在我的代码中)，指出“Uncaught TypeError: Cannot read property 'prototype' of undefined at BloomPass.js:76”BloomPass 76 行如下:

THREE.BloomPass.prototype = Object.assign( Object.create( THREE.Pass.prototype ), {

我相信由于这个原因，EffectComposer 也会抛出一个错误 composer.addPass(effectBloom); 行: 未捕获的类型错误:pass.setSize 不是 THREE.EffectComposer.addPass 的函数

pass.setSize( size.width, size.height );

知道我做错了什么吗？根据几个例子，我正确设置了一切...... 非常感谢任何帮助!

Answer 1

您应该将 CopyShader 放在 Composer 的末尾而不是中间。这段代码对我有用:

    renderer.autoClear = false;
    composer = new THREE.EffectComposer(renderer);
    var sunRenderModel = new THREE.RenderPass(scene, camera);
    var effectBloom = new THREE.BloomPass(1, 25, 5);
    var sceneRenderModel = new THREE.RenderPass(scene, camera);
    var effectCopy = new THREE.ShaderPass(THREE.CopyShader);
    effectCopy.renderToScreen = true;
    composer.addPass(sunRenderModel);
    composer.addPass(effectBloom);
    composer.addPass(effectCopy);