Fix addLightNode in case of anonymizing classes

[LeviPesin]

Follow-up to #26846

@danrossi Does this solve your issue?

[danrossi]

Yes it's working now. https://danrossi.github.io/three-webgpu-renderer/tests/webgpu_video_min.html

[mrdoob]

@danrossi

I noticed that you are using this code...

			if (WebGPU.isAvailable()) {
				console.log("Using WebGPU");
				renderer = new WebGPURenderer();
				texture.colorSpace = THREE.SRGBColorSpace;
				material = new THREE.MeshBasicMaterial({ map: texture });
				
			} else {
				console.log("Using WebGL");
				renderer = new THREE.WebGLRenderer();
				...

Have you tried doing this?

			renderer = new WebGPURenderer();
			if (WebGPU.isAvailable()) {
				console.log("Using WebGPU");
				texture.colorSpace = THREE.SRGBColorSpace;				
			} else {
				console.log("Using WebGL");
				...

The WebGPURenderer has a internal WebGL2.0 fallback that I think should already work for your use case.

[danrossi]

the fallback doesn't support the full webgl renderer features including webxr. So I have to enable different shaders depending on the renderer like in the upgraded bmfont. The spec for webxr in webgpu is still theoreticals and not implemented yet I believe.

https://github.com/danrossi/three-bmfont-text/blob/es6/src/TextBitmap.js#L62

I cleaned up the tests and this demonstrates no check and using the nodes feature.

https://github.com/danrossi/three-webgpu-renderer/blob/master/tests/webgpu_video_nodes.html

[danrossi]

It doesn't try and use webgl for WebXR in this sdf text example but its setup to support both renderers. So it can work for both. https://danrossi.github.io/three-webgpu-renderer/tests/webgpu_text.html