[Feature Request] RTX Interactive Path tracing 16-bit PtWorldPos AOVs not precise enough

[r.lei]

Operating System:
Windows
Linux
Kit Version:
107 (Kit App Template)
106 (Kit App Template)
105 (Launcher)
Kit Template:
USD Composer
USD Explorer
USD Viewer
Custom
GPU Hardware:
A series (Blackwell)
A series (ADA)
A series
50 series
40 series
30 series
GPU Driver:
Latest
Recommended (573.xx)
Other

Work Flow:

I’m trying to use PtWorldPos AOV from the RTX Interactive path tracer for gsplat training

Request:

The PtWorldPos AOV uses 16-bit encoding and it’s not precise enough for larger scenes. See example of the Isaac warehouse:

(from PtWorldPos Precision Bug - #8 by rlei)

Can we request an opt-in 32-bit encoding option similar to the depth AOV?

Reproduction Steps:

1. Download & launch Omniverse USD Composer
2. Download Downloadable Asset Packs — Omniverse USD and open Showcases_Content_NVD@10011/Samples/Showcases/2023_2_1/IsaacWarehouse/IsaacWarehouse.usd in Omniverse USD Composer
3. Set the viewport renderer to RTX - Interactive (Path Tracing)
4. Set Render Settings > Common > View > Debug View > Render Target to `PT AOV World Position*
5. See that we are not getting the expected smooth range of world position values

Thanks for taking a look!

Error Code:

[Richard3D]

Hi there and thanks for this. I will ask the engineers about this and get back to you.

[Richard3D]

I have filed a bug with the engineers and they are now looking into this.