NVIDIA GameWorks Integration

[Blakblt]

@;376502

Thanks for the data. It looks like you actually are running out of video memory, although GPU-Z shows it’s not full. Just not all the data is resident in video memory, which causes massive swapping to system memory over PCI-E.
The actual difference in vidmem requirements between HDR and non-HDR emittance for MapSize=128 is close to 700 MB.

's what I get on a 4 GB GPU (Win10) in non- mode, with a very simple scene in UE4:
MapSize=64, HDR=0: 1565 MB
MapSize=64, HDR=1: 1652 MB
MapSize=128, HDR=0: 2073 MB
MapSize=128, HDR=1: 2739 MB

Thanks for the help !

@;376502

Isn’t MapSize=64 fast enough?
You can also try reducing the number of clipmap levels (r.VXGI.StackLevels) and scale Range accordingly.
Setting StackLevels to 1 is an interesting special case, which removes some quality issues that come from the clipmap, such as banding, but some other implicit settings aren’t optimized in the currently released version; they will be in the next version.

At point I’m not sure if MapSize6=64 is fast enough. I haven’t gotten a to test VXGI on my laptop, I’m just going off of what I’ve seen throughout thread. Scaling the range took away a lot of quality and added very little performance for me, but I haven’t messed with the clipmap because I wasn’t sure how it worked. I’ll try that next.