* Create a GPUComposer from an existing THREE.WebGLRenderer that shares a single WebGL context. * @param renderer - Threejs WebGLRenderer. * @para

* Returns whether the GPULayer was inited as a 2D array (rather than 1D). * @returns - true if GPULayer is 2D, else false.

* @param {unknown} view * @returns {boolean}

* Detects whether highp is supported by this browser. * This is supposed to be relatively easy. You call gl.getShaderPrecisionFormat, you pass in the

* @param {unknown} key * @returns {boolean}

* Strip out any unnecessary elements in shader source, e.g. #version and precision declarations. * This is called once on initialization, so doesn't

* Force compilation of GPUProgram with new compileTimeConstants. * @param compileTimeConstants - Compile time #define constants to include with frag