abc camera import in LOPS, camera edit, moblur not in render

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Hey guys, I'm pretty new to Karma and Solaris and I'm battling a problem that I just can't fix. I have an animated Alembic camera that I imported via the Alembic archive in my OBJ level. My end goal is to get motion blur on the render, but I can't seem to understand how to get Karma to do that. Pls help me figure out what nodes to use and what to put in the paths. I imported the camera via the sceneimportcameras node (I didnt imoport it directly in LOPs bc I had to translate and scale it down and wanted to use it for scene blocking). I then put a camera edit below to get control of focal distance etc. In the karmarendersettings below I do have to change the camera path to "camera_edit1" to get Karma to use the edited camera instead, right? I instantly get the warning that the camera is missing from input. I ignored it and put a motion blur node below with a manually specified shutter. The motion blur is perfectly visible in the viewport but no matter what, it will not show up in the render or mplay.

I tried everything I could find:

- cache the camera
- check always include frame samples in motion blur node
- switch filter time samples to "never" in render rop
- switch filter time samples to "always" with extra frames in render top
- switch on velocity blur in karma node

Nothing worked unfortunately. Did I miss something?


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By adding objects in Solaris, you're building a stage that you can see the hierarchy of in the Scene Graph Tree panel. The camera path your render settings need is not the path of the edit node, but the path of the camera prim in that stage. Click the pointer to the right of the parameter and you should be able to easily select it.
Edited by Tanto - 2025年8月15日 15:16:26
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Tanto
By adding objects in Solaris, you're building a stage that you can see the hierarchy of in the Scene Graph Tree panel. The camera path your render settings need is not the path of the edit node, but the path of the camera prim in that stage. Click the pointer to the right of the parameter and you should be able to easily select it.

Ah alright! I will try that thank you
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