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javascript - 无法让 three.js EffectComposer 工作

转载 作者:塔克拉玛干 更新时间:2023-11-02 22:04:58 25 4
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我想开始使用 EffectComposer 对我的渲染进行一些后处理,但我无法获得最基本的设置来渲染到屏幕上。它只是保持空白。我一定是在看什么东西。有人有想法吗?

<!doctype html>
<html>
<head>
<title>game</title>
<style type="text/css">
html, body {
margin: 0px;
width: 100%;
height: 100%;
}

canvas {
display: block;
}
</style>
</head>
<body>
<canvas id="viewport"></canvas>
<script type="text/javascript" src="three.js"></script>
<script type="text/javascript" src="CopyShader.js"></script>
<script type="text/javascript" src="ShaderPass.js"></script>
<script type="text/javascript" src="EffectComposer.js"></script>
<script type="text/javascript" src="RenderPass.js"></script>
<script type="text/javascript" src="MaskPass.js"></script>
<script type="text/javascript">
var width = document.body.clientWidth;
var height = document.body.clientHeight;
var canvas = document.querySelector('#viewport');
var renderer = new THREE.WebGLRenderer({canvas: canvas});
renderer.setSize(width, height);

var scene = new THREE.Scene();

var cube = new THREE.Mesh(
new THREE.CubeGeometry(30, 30, 30),
new THREE.MeshPhongMaterial({color: 0xFF0000}));
scene.add(cube);

var camera = new THREE.PerspectiveCamera(45, width / height, 0.1, 1000);
camera.position = new THREE.Vector3(60, 60, 60);
camera.lookAt(cube.position);
camera.updateMatrix();
scene.add(camera);

var pointLight = new THREE.PointLight(0xFFFFFF);
pointLight.position = new THREE.Vector3(100, 80, 20);
scene.add(pointLight);

var renderPass = new THREE.RenderPass(scene, camera);
renderPass.renderToScreen = true;
var composer = new THREE.EffectComposer(renderer);
composer.addPass(renderPass);
renderer.clear();
composer.render();

//renderer.render(scene, camera);
</script>
</body>
</html>

如果我取消注释最后一行,我会在屏幕上看到一些东西。

最佳答案

首先,EffectComposer 不是库的一部分——它是示例的一部分。所以它没有得到官方支持。

所以,是的,您必须“知道它在幕后是如何工作的。”

您可以通过添加额外的 CopyPass 来解决您的问题,如下所示:

var renderPass = new THREE.RenderPass( scene, camera );

var copyPass = new THREE.ShaderPass( THREE.CopyShader );
copyPass.renderToScreen = true;

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

composer.render( 0.05 );

关于javascript - 无法让 three.js EffectComposer 工作,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/13350084/

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