remotion-dev/remotion · critical · Error

Shader compile failed: ${log ?? '(no log)'}

Error message

Shader compile failed: ${log ?? '(no log)'}

What it means

The zoomBlur fragment or vertex shader failed to compile. The GLSL source is a hardcoded constant internal to the library, so a compile failure usually indicates a GPU driver bug or a WebGL2 implementation that rejects valid GLSL ES 3.00. The info log from the driver is included in the error message.

Source

Thrown at packages/effects/src/zoom-blur/zoom-blur-runtime.ts:36

	};
};

const compileShader = (
	gl: WebGL2RenderingContext,
	type: number,
	source: string,
): WebGLShader => {
	const shader = gl.createShader(type);
	if (!shader) {
		throw new Error('Failed to create WebGL shader');
	}

	gl.shaderSource(shader, source);
	gl.compileShader(shader);
	if (!gl.getShaderParameter(shader, gl.COMPILE_STATUS)) {
		const log = gl.getShaderInfoLog(shader);
		gl.deleteShader(shader);
		throw new Error(`Shader compile failed: ${log ?? '(no log)'}`);
	}

	return shader;
};

const linkProgram = (
	gl: WebGL2RenderingContext,
	vs: WebGLShader,
	fs: WebGLShader,
): WebGLProgram => {
	const program = gl.createProgram();
	if (!program) {
		throw new Error('Failed to create WebGL program');
	}

	gl.attachShader(program, vs);
	gl.attachShader(program, fs);
	gl.linkProgram(program);

View on GitHub (pinned to 78fe4bb3fd)

Solutions

1. Update the GPU driver or the headless browser's GPU support (e.g., update Chrome/SwiftShader).
2. Test on a different machine or GPU to confirm it is driver-specific.
3. Report the issue to Remotion with the shader info log from the error message.
4. On CI, ensure the Docker image includes a working GL stack (e.g., appropriate mesa/libGL packages).

try {
  zoomBlur({ amount: 40 });
} catch (err) {
  if (err instanceof Error && err.message.startsWith('Shader compile failed')) {
    // log the driver info and fall back to a different effect or skip
    console.error('Shader compile failed on this GPU:', err.message);
  } else {
    throw err;
  }
}

When it happens

Trigger: The shader sources (ZOOM_BLUR_VS / ZOOM_BLUR_FS) contain GLSL that a particular driver cannot parse, or the driver's shader compiler has a bug. Since the shaders are fixed, this is environmental rather than caused by user parameters.

Common situations: Rendering on older mobile GPUs, buggy integrated graphics drivers, virtual machines with incomplete WebGL2 support, or headless Chrome with an outdated SwiftShader build.

Related errors

• Program link failed: ${log ?? '(no log)'}
• Failed to create WebGL shader
• Failed to create WebGL program
• Failed to create WebGL texture
• Failed to create WebGL vertex array

AI-assisted analysis of remotion-dev/remotion@78fe4bb3fd (2026-08-12). Data as JSON: /api/errors/aa22107a0cb581ee. Report an issue: GitHub.