{"record":{"id":"8b55776b9d78b1bd","repo":"remotion-dev/remotion","slug":"failed-to-create-webgl-program-8b5577","errorCode":null,"errorMessage":"Failed to create WebGL program","messagePattern":"Failed to create WebGL program","errorType":"exception","errorClass":"Error","httpStatus":null,"severity":"error","filePath":"packages/effects/src/progressive-pixelate-runtime.ts","lineNumber":150,"sourceCode":"\tif (!gl.getShaderParameter(shader, gl.COMPILE_STATUS)) {\n\t\tconst log = gl.getShaderInfoLog(shader);\n\t\tgl.deleteShader(shader);\n\t\tthrow new Error(\n\t\t\t`Progressive pixelate shader compile failed: ${log ?? '(no log)'}`,\n\t\t);\n\t}\n\n\treturn shader;\n};\n\nconst linkProgram = (\n\tgl: WebGL2RenderingContext,\n\tvs: WebGLShader,\n\tfs: WebGLShader,\n): WebGLProgram => {\n\tconst program = gl.createProgram();\n\tif (!program) {\n\t\tthrow new Error('Failed to create WebGL program');\n\t}\n\n\tgl.attachShader(program, vs);\n\tgl.attachShader(program, fs);\n\tgl.linkProgram(program);\n\tif (!gl.getProgramParameter(program, gl.LINK_STATUS)) {\n\t\tconst log = gl.getProgramInfoLog(program);\n\t\tgl.deleteProgram(program);\n\t\tthrow new Error(\n\t\t\t`Progressive pixelate program link failed: ${log ?? '(no log)'}`,\n\t\t);\n\t}\n\n\treturn program;\n};\n\nexport const setupProgressivePixelate = (\n\ttarget: HTMLCanvasElement,","sourceCodeStart":132,"sourceCodeEnd":168,"githubUrl":"https://github.com/remotion-dev/remotion/blob/78fe4bb3fdb5a2cd68724393d63cb223db333fa7/packages/effects/src/progressive-pixelate-runtime.ts#L132-L168","documentation":"Thrown by linkProgram in progressive-pixelate-runtime.ts when gl.createProgram() returns null after both shaders compiled. Same allocation-failure pattern as the pixelate equivalent, specific to the progressive-pixelate effect.","triggerScenarios":"setupProgressivePixelate: both shaders compiled, then gl.createProgram() returns null.","commonSituations":"Context lost between shader compile and program creation; program-object cap reached; SwiftShader under load; many effects holding programs.","solutions":["Check `gl.isContextLost()` before mounting; remount on restore.","Reduce concurrent WebGL2 effects.","Use the correct Remotion Lambda Chrome layer and adequate function memory.","Reproduce on stable desktop Chrome to isolate environment.","Free other GPU resources before applying the effect."],"exampleFix":"// before\nsetupProgressivePixelate(canvas);\n\n// after — probe program creation\nfunction glCanCreateProgram(gl: WebGL2RenderingContext): boolean {\n  if (gl.isContextLost()) return false;\n  const p = gl.createProgram();\n  if (p) gl.deleteProgram(p);\n  return p !== null;\n}","handlingStrategy":"try-catch","validationCode":"function glCanCreateProgram(gl: WebGL2RenderingContext): boolean {\n  if (gl.isContextLost()) return false;\n  const p = gl.createProgram();\n  if (p) gl.deleteProgram(p);\n  return p !== null;\n}","typeGuard":null,"tryCatchPattern":"try {\n  setupProgressivePixelate(canvas);\n} catch (err) {\n  if (/Failed to create WebGL program/.test((err as Error).message)) {\n    // remount on context restore or reduce concurrent effects\n  }\n  throw err;\n}","preventionTips":["Check gl.isContextLost() before mounting; remount on restore.","Keep concurrent WebGL2 effects low.","Use the correct Lambda Chrome layer with adequate memory.","Reproduce on stable desktop Chrome to confirm environment."],"tags":["webgl","gpu","progressive-pixelate","program","environment"],"backgroundTag":null,"analyzedSha":"78fe4bb3fdb5a2cd68724393d63cb223db333fa7","analyzedAt":"2026-08-12T17:18:50.444Z","schemaVersion":2},"datasetVersion":"2026-08-12T23:17:12.415Z"}