Function getContextInfo

docs/app/js/sanddance-app.js:68490–68503

(gl)

    return Boolean(gl && gl._version === 2);
}
function getContextInfo(gl) {
    var info = gl.getExtension("WEBGL_debug_renderer_info");
    var vendor = gl.getParameter(info && info.UNMASKED_VENDOR_WEBGL || GL_VENDOR);
    var renderer = gl.getParameter(info && info.UNMASKED_RENDERER_WEBGL || GL_RENDERER);
    var gpuVendor = identifyGPUVendor(vendor, renderer);
    var gpuInfo = {
        gpuVendor: gpuVendor,
        vendor: vendor,
        renderer: renderer,
        version: gl.getParameter(GL_VERSION),
        shadingLanguageVersion: gl.getParameter(GL_SHADING_LANGUAGE_VERSION)
    };
    return gpuInfo;
}
function identifyGPUVendor(vendor, renderer) {
    if (vendor.match(/NVIDIA/i) || renderer.match(/NVIDIA/i)) return "NVIDIA";
    if (vendor.match(/INTEL/i) || renderer.match(/INTEL/i)) return "INTEL";