Shading is flat; normals aren't interpolated

[trebconnell]

This image taken from Usd kitchen_set scene, Quality: Northstar, but also reproduces using 'Medium' quality

Platform: Windows
RprUsd Ver: 2.0.19 (f9d793d)
Usd Ver: v20.11

[hshakula]

With RPR delegate it was preferable to explicitly control the level of subdivision. But that was back in the days. Now we can try to roll out automatic subdivision. I will implement it.

Low-High qualities do not support subdivision for now.

[trebconnell]

Thanks, but I believe this should be able to be fixed by using a different shading model which interpolates normals across the face. Ex: https://en.m.wikipedia.org/wiki/Shading

[hshakula]

@trebconnell, please have a look at the images from #436

[trebconnell]

Thanks! Those look great. Thanks for fast turn around here!
Edit: Read PR, ah yeah makes sense this could also be caused by normals not being smoothed.

[hshakula]

The ability to subdiv will also be useful.

We have subdivision feature available with "Full" and "Full (Legacy)" qualities. You just need to create rpr:subdivisionLevel int primvar on a mesh. See example - subdivisionSample.zip

Let me know if you require subdivision in Low-High qualities.