I’ve used to encounter this same bug multiple times when I first started doing rendering exports. See: Picture in picture bug in OSPRay Animation Export
It seems to be due to the image scaling when raytracing is enabled. From my testing it seems that the rendering is being done at your screen resolution and then scaled. My workarounds:
- Easiest: Just output at the image at the native resolution that first pops up. This isn’t ideal since it will be some odd resolution, and you are limited on quality since size is limited by your screen size.
- Better: Use headless rendering like pvbatch. From my testing it renders at the image size you set and doesn’t have to mess with scaling.
Hopefully this gets fixed at some point, as it is a very annoying bug for new users. Let me know if you have any other questions.
-Marston