{"record":{"id":"c0a4501561e46e46","repo":"remotion-dev/remotion","slug":"failed-to-create-webgl-vertex-array-c0a450","errorCode":null,"errorMessage":"Failed to create WebGL vertex array","messagePattern":"Failed to create WebGL vertex array","errorType":"exception","errorClass":"Error","httpStatus":null,"severity":"error","filePath":"packages/effects/src/rings.ts","lineNumber":361,"sourceCode":"};\n\nconst setupRings = (target: HTMLCanvasElement): RingsState => {\n\tconst gl = target.getContext('webgl2', {\n\t\tpremultipliedAlpha: true,\n\t\talpha: true,\n\t\tpreserveDrawingBuffer: true,\n\t});\n\tif (!gl) {\n\t\tthrow createWebGL2ContextError('rings effect');\n\t}\n\n\tgl.pixelStorei(gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, true);\n\n\tconst program = createProgram(gl, RINGS_VS, RINGS_FS);\n\n\tconst vao = gl.createVertexArray();\n\tif (!vao) {\n\t\tthrow new Error('Failed to create WebGL vertex array');\n\t}\n\n\tgl.bindVertexArray(vao);\n\n\tconst data = new Float32Array([\n\t\t-1, -1, 0, 0, 1, -1, 1, 0, -1, 1, 0, 1, 1, 1, 1, 1,\n\t]);\n\n\tconst vbo = gl.createBuffer();\n\tif (!vbo) {\n\t\tthrow new Error('Failed to create WebGL buffer');\n\t}\n\n\tgl.bindBuffer(gl.ARRAY_BUFFER, vbo);\n\tgl.bufferData(gl.ARRAY_BUFFER, data, gl.STATIC_DRAW);\n\n\tconst aPos = gl.getAttribLocation(program, 'aPos');\n\tconst aUv = gl.getAttribLocation(program, 'aUv');","sourceCodeStart":343,"sourceCodeEnd":379,"githubUrl":"https://github.com/remotion-dev/remotion/blob/78fe4bb3fdb5a2cd68724393d63cb223db333fa7/packages/effects/src/rings.ts#L343-L379","documentation":"Internal error from the `rings()` effect setup: `gl.createVertexArray()` returned `null`. The VAO encapsulates the quad's vertex/uv attribute bindings. A `null` return means the driver could not allocate a VAO object — an environment-level failure (context loss, resource exhaustion, or a driver without robust VAO support) rather than a param error.","triggerScenarios":"Calling `rings()` on a context that has been lost; exhausting the driver's VAO pool with many concurrent effects; a non-conformant WebGL2 implementation where VAO creation is unreliable.","commonSituations":"Long Studio sessions; complex multi-effect compositions; rendering on virtual GPUs.","solutions":["Refresh the page or restart the render for a fresh context.","Cut down the number of concurrently mounted effects.","Handle `webglcontextlost`/`webglcontextrestored` to rebuild VAOs.","Update GPU drivers or switch to a hardware-accelerated environment."],"exampleFix":null,"handlingStrategy":"try-catch","validationCode":"const canAllocateVao = (): boolean => {\n  try {\n    const c = document.createElement('canvas');\n    const gl = c.getContext('webgl2');\n    if (!gl) return false;\n    const vao = gl.createVertexArray();\n    if (vao) gl.deleteVertexArray(vao);\n    return !!vao;\n  } catch {\n    return false;\n  }\n};","typeGuard":null,"tryCatchPattern":"try {\n  rings()({...});\n} catch (err) {\n  if (err instanceof Error && /Failed to create WebGL vertex array/.test(err.message)) {\n    // surface a 'GPU resource limit reached' message and reduce effects\n  } else {\n    throw err;\n  }\n}","preventionTips":["Feature-detect VAO allocation on the target context.","Limit the number of concurrently mounted effects.","Handle context loss/restore to rebuild VAOs.","Use hardware acceleration where possible."],"tags":["webgl2","rings-effect","effects","gpu","environment","vao","resource-allocation"],"backgroundTag":null,"analyzedSha":"78fe4bb3fdb5a2cd68724393d63cb223db333fa7","analyzedAt":"2026-08-12T17:18:50.444Z","schemaVersion":2},"datasetVersion":"2026-08-12T18:17:37.767Z"}