/** * Helper for checking for webgl support * * @memberof PIXI.utils * @function isWebGLSupported * @return {boolean} is webgl supported */ export function isWebGLSupported() { const contextOptions = { stencil: true, failIfMajorPerformanceCaveat: true }; try { if (!window.WebGLRenderingContext) { return false; } const canvas = document.createElement('canvas'); let gl = canvas.getContext('webgl', contextOptions) || canvas.getContext('experimental-webgl', contextOptions); const success = !!(gl && gl.getContextAttributes().stencil); if (gl) { const loseContext = gl.getExtension('WEBGL_lose_context'); if (loseContext) { loseContext.loseContext(); } } gl = null; return success; } catch (e) { return false; } }