AbduSharif

> Mmmm, so the GLES2 extension is pretty rare :( > And GLES3 is a lot of work. So, not sure how I will progress in this. Anyway, I have...

This extension does the same, it has been there for a long while: GL_EXT_draw_instanced

It's supported in mine :)

With latest changes VBO doesn't crash OpenMW or freezes it as much as it did with v1.1.4 and previous version, when using a highly modded setup.

There's occasional hiccups though, unlike when using this where OpenMW plays smoother: LIBGL_USEVBO=0

When forcing VBOs with this OSG environment variable the flicker is gone: OSG_VERTEX_BUFFER_HINT=VBO

Would that be a clue or is there more that can be done to know where the problem lies?

Fixed in one of the recent commits, I'm not even forcing VBOs either.

There's one issue with the water shader (small flicker) but it's not severe, I'll open an issue with a video.

I take that back, I was too hasty. The flicker is no longer severe (before it was very bad), but it still happens on save loading and to the water...