我正在尝试为Three.js制作最简单的自定义着色器,但我还没弄清楚如何使其工作.我正在使用着色器的对象根本没有出现.

在我的页面html中,我有：

<script id="simplefs" type="x-shader/x-fragment">

    void main(void) {
        gl_FragColor = vec4(0.0,1.0,0.0,1.0);
    }
</script>

<script id="simplevs" type="x-shader/x-vertex">

    void main(void) {
        gl_Position = modelViewMatrix * projectionMatrix * vec4(position,1.0);
    }
</script>

然后在javascript中：

var vertShader = document.getElementById("simplevs").innerHTML;
var fragShader = document.getElementById("simplefs").innerHTML;

var myMaterial = new THREE.ShaderMaterial({
    vertexShader : vertShader,fragmentShader: fragShader
});

var baseBevel = new THREE.Mesh(new THREE.CylinderGeometry(BaseRadius - BaseBevel,BaseRadius,BaseBevel,100,false),myMaterial )
baseBevel.position.x = x;
baseBevel.position.y = y;
baseBevel.position.z = BaseHeight - (BaseBevel / 2.0);
baseBevel.rotation.x = Math.PI / 2.0;

scene.add(baseBevel);

对象应该在哪里,什么也没有.如果我用MeshLambertMaterial替换材质,它工作正常.我错过了什么,我需要让它工作？

gl_Position = projectionMatrix * modelViewMatrix * vec4(position,1.0);