search

Autodesk / maya-usd

A common USD (Universal Scene Description) plugin for Autodesk Maya
747 stars 198 forks source link

[MTOA-34] USD Camera prim bug with Arnold #1815

Open jcoelho88 opened 2 years ago

jcoelho88 commented 2 years ago

Hello,

I recently updated the plugins we are testing with and have noticed that the Arnold Render View does not seem to recognize the USD camera prims, they default to something called "defaultUfeProxyCameraShape" and if you try to render through it you will get this error:

// Error: [mtoa] Setting camera defaultUfeProxyCameraShape failed //

Here is what I'm using:

Steps to reproduce:

In earlier version of the plugin I think 0.11.0 or 0.12.0 this was not an issue that I encountered.

The expected behavior is for the scene to render from the USD camera prim. If there is some kind of incorrect configuration of plugins please let me know. If this is a known issue, is there a way around this? Should I wait for a fix or possibly revert to a previous version?

image

Any assistance with this would be greatly appreciated.

Cheers,

Jason Coelho

williamkrick commented 2 years ago

Hi @jcoelho88,

defaultUfeProxyCameraShape is the name of the internal camera node Maya uses to represent a Ufe camera in Maya. MayaUSD implements the Ufe interface so that USD camera's can work in Maya.

mtoa doesn't have support for this special camera yet, which is why you are seeing this error. To render in Arnold you still have to import the camera into Maya and render with the corresponding Maya camera.

jcoelho88 commented 2 years ago

Hi @williamkrick,

Thanks for the clarification, I'll have to see about a change in our workflow until mtoa will recognize the Camera prim.

With importing the camera, as far as I can tell If I want to get the results of the composed layers of the camera from the stage I would need to write out a new specific layer then import that into the Maya scene. I'll test this out.

Should this issue remain open?

Cheers,

Jason Coelho

williamkrick commented 2 years ago

I think we should keep this one open as work for mtoa to support defualtUfeProxyCameraShape. This has been logged internally as MTOA-34.

swillisart commented 2 years ago

Just chiming in here that the USD camera is not available in the Renderable Cameras in Maya's Render settings unless you bring in to edit or export.

22-06-10_05-13-25_c I hope we can get renderable cameras soon.

maya-usd-git-sync[bot] commented 7 months ago

Issue synced internally to EMSUSD-681

sebastienblor commented 2 months ago

Hi @swillisart , I wanted to mention that it's now possible to render USD cameras with Arnold, without having to first display them in the viewport. They should all be listed in the renderview, and also show up in the renderable cameras list, assuming the camera primitive purpose is either Render or Default.

This is included in the latest MtoA release 5.4.1.0

swillisart commented 2 months ago

Thank you! This is big news.