WebGL readpixel在chrome中工作，但在firefox中没有

Question

您好我正在使用以下webgl脚本从渲染对象中读取，这适用于Chrome但在Firefox和IE中提供“错误：WebGL：readPixels：无效类型浮点数”

代码段：

    var gl = this.renderer.getContext();
    var pixels = new Uint8Array(this.net.RESOLUTION * this.net.RESOLUTION * 4);
    gl.readPixels(0, 0, this.net.RESOLUTION, this.net.RESOLUTION, gl.RGBA, gl.UNSIGNED_BYTE, pixels);

提前致谢 亚洲时报Siddharth

Answer 1

问题出在

var renderTarget = new THREE.WebGLRenderTarget(width, height, {
            wrapS : THREE.RepeatWrapping,
            wrapT : THREE.RepeatWrapping,
            minFilter : THREE.NearestFilter,
            magFilter : THREE.NearestFilter,
            format : type,
            type : THREE.FloatType,
            stencilBuffer : false
        });

这里输入：Chrome中允许使用THREE.FloatType但Firefox中不允许！ 所以工作WebGlRenderTarget是

        var renderTarget = new THREE.WebGLRenderTarget(width, height, {
            wrapS : THREE.RepeatWrapping,
            wrapT : THREE.RepeatWrapping,
            minFilter : THREE.NearestFilter,
            magFilter : THREE.NearestFilter,
            format : type,
            stencilBuffer : false
        });