NVIDIA GameWorks Integration

[Blakblt]

@;291902

In case you didn’t notice, slide comes from NVIDIA VXGI slideshow and they are discussing those issues and how to solve them. is what they proposed:

Well it may be no problem for static objects but when objects move, is anotehr story, especially when the moving objects are dynamic GI sources using two bounces when they move. It is a common problem for many dynamic GI proposed solutions even the one I stumbled on for Cryengine using two bounces when objects move and cast reflections ( it is even more complicated since the moving objects are dynamic GI sources using two bounces when they move). I highlighted that way back in my comment:
https://forums.unrealengine/showthread.php?44278-Realtime-Dynamic-GI-Reflections-AO-Emissive-plugin-AHR&p=173638&viewfull=1#post173638
and I hope VXGI will find great solution so we won’t encounter such ugly pixel on reflections of moving objects

Also about about single bounce specular: VXGI did encounter some problems with some indirect specular coming from indirectly lit areas having objects not rendered in screen-space since it uses only one bounce, I really hope now that they will solve with their multi-bounce solution.

I noticed that it was official, but in gameplay the voxels are hard to notice. People who develop digital content will pick out every little detail, but when you sit down and play a game/watch an animation, small amounts of light leaking or voxels in reflections are minor enough that they aren’t seen unless you’re looking for them. And yes, moving objects do pose more issues, but I haven’t encountered any visual artifacts that are really major issues. The exception to that is specular tracing with only one bounce, but that’s something that is a problem in itself.