NVIDIA GameWorks Integration

[anonymous_user_7c71c8ec]

@;296632

@ in page 34, I highlighted some problems of VXGI from your official slideshows. Are they now solved? I also gave a link for another comment in another thread about a GI test in Cryengine using two bounces and multiple moving GI sources creating dynamic lighting and indirect lighting via two bounces when moving thus creating real reflections that result in voxels in reflections while moving (you can download the sample from the link of my comment on that thread). How are you managing movable GI sources? I hope you already solved most of the previosu problems you highlighted first like voxels in reflections for static meshes, so you can solve problems caused by movable ones and especially dynamic GI sources. Thanks

Right, those are my GTC slides… The problems mentioned there are:

• Light leaking: no improvements , in fact with the new high-order emittance downsampling filter (bVxgiHighQualityEmittanceDownsampling in BaseEngine.ini) light leaking may appear in some places where it didn’t before.
• Voxels in reflections: nothing new as well, you can still see the voxels in reflections on flat objects with low roughness. VXGI can add some jitter to sample positions, thus replacing visible voxels with noise, but that’s hardly better.
• Specular reflections are single bounce: not anymore, with multi-bounce support.

We do not make any distinction between static and moving objects, they are all processed in the same way. The improved emittance downsampling filter that I mentioned above helps with the quality of indirect lighting from moving objects a lot, and it also improves the quality of rough flat reflections.