any means to expose shader errors?

[tiye]

I want to expose shader compilation errors as string and display them in my own UI. I looked into twgl and it does not seem to expose those messages.

twgl.js/src/programs.js

Lines 582 to 598 in 95e5c56

	function loadShader(gl, shaderSource, shaderType, progOptions) {
	// Create the shader object
	const shader = gl.createShader(shaderType);
	// Load the shader source
	gl.shaderSource(shader, prepShaderSource(shaderSource).shaderSource);
	// Compile the shader
	gl.compileShader(shader);
	if (!progOptions.callback && !checkShaderStatus(gl, shaderType, shader, progOptions.errorCallback)) {
	gl.deleteShader(shader);
	return null;
	}
	return shader;
	}

The errors are logged in the console, it's still readable for me. But is there any means that we can grab the messages in my logics?

Maybe I copy and use my own version of twgl.createProgramInfo, but it seems like a headache in maintanence.

[greggman]

twgl.createProgramInfo(gl, [vs, fs], { errorCallback: (msg) => { alert(msg); }});

[tiye]

thanks. didn't notice it's already there.