# Saving images rendered with optiX and tuning render parameters

**URL:** https://discourse.paraview.org/t/saving-images-rendered-with-optix-and-tuning-render-parameters/16601
**Category:** ParaView Support
**Created:** [May 9, 2025, 4:48pm UTC](https://discourse.paraview.org/t/saving-images-rendered-with-optix-and-tuning-render-parameters/16601 "2025-05-09T16:48:48Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![David\_Cortes](https://discourse.paraview.org/user_avatar/discourse.paraview.org/david_cortes/32/4442_2.png) [@David\_Cortes](https://discourse.paraview.org/u/David_Cortes)
#### Post date: [May 9, 2025, 4:48pm UTC](https://discourse.paraview.org/t/saving-images-rendered-with-optix-and-tuning-render-parameters/16601/1 "2025-05-09T16:48:48Z")

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Hi, I’m rendering a scene using the optiX pathtracer. I have a couple of questions:

- What’s the best combination of numbers for Samples per Pixel and Progressive Passes, for a final image? I’m setting 64 and 1024, respectively, but I’m not sure when Paraview stops rendering the image

- How do I save the final rendered image? I tried Save Screenshot but this starts rendering the image again. Is this the best option to save a final result?

- How can I set a white background for a render? Because the background color option does not work for optiX rendering. I’m currently using a plane but sometimes it interferes with the lights of my object if I want a pure white background.