glDrawArrays: attempt to access out of range vertices in attribute 0

[micha149]

When enabling the WebGL Inspector, I get the error glDrawArrays: attempt to access out of range vertices in attribute 0 on my console and nothing will be drawn. I looked a bit around to figure out, where the error comes from and I think its gl-geometry. Maybe the buffer is not initialized with the correct size.

I get the error im my own code and also in the bunny walkthrough example. But only when WebGL Inspector is enabled.

I am totally new to webgl (without three.js) so maybe I am wrong.

[micha149]

@hughsk @mikolalysenko @mattdesl Any Idea whats going wrong? When I use a geometry without faces to render points, the error did not occur…

[mattdesl]

I will test today to see if I can reproduce 👌

[hughsk]

I'm not sure what the cause of this is yet but it's something going on in WebGL Inspector's instrumentation code messing things up... Ran into this today too. fwiw, a temporary workaround would be to unindex your mesh before sending it into gl-geometry :)

[oparisy]

Maybe you'd like to file a bug to WebGL Inspector then, @micha149?