16k maps render as black

[salvadoresz]

3ds max 2018, vray latest nightly, didnt check in older versions. 16k maps render as black, which is a shame. I tried both png and tif, but if i resize them to 8k, the map shows up.

[salvadoresz]

Anyone having this issue or is it just me? I'm asking because in some situations, 16k maps almost a minimum that is needed, and workarounds to 8k udims just add a good few more days to production, + at least a couple more days to find feasible solutions to the issues that come up, for example with displacement seams. Thank you

[matanov]

Can you check with today's nightly? Seems fine here.

[salvadoresz]

Thanks Peter. Seems to work in the new nightly, but only if i move my scenes in a new fresh 3ds scene, which isn't an issue. Maybe we should do that more often.
Thanks again!

Edit: i think i found a bug, will write some details below.

[salvadoresz]

So in my current example, i have a 16k and 16bit, Tif displacement. In vray gpu settings/Perf/Textures, if i set Format to Half, i get displacement artifacts/banding. But 16k diffuse maps render well.
If i set Format to Float, displacement banding goes away, but also the 16k diffuse maps dont render.

[salvadoresz]

Then sometimes when, seems random because if i change edge length and half or float options, and restart ipr a few times, some problems go away or come back, but i get these results

[matanov]

Pack it up and send it to my mail, please

[salvadoresz]

Sent, thanks Peter.

[salvadoresz]

Any news? Did you manage to reproduce some of these issues? Thanks

[matanov]

I couldn't with your scene, but we have a similar issue reported by another client which is reproducible here. I'll post here when there is some new progress. Sorry for the inconvenience.