OSPRay rendering slow

ParaView Support
1

Hey all,

I am trying to do some rendering with OSPRay Raycaster on ParaView 5.12.1. As of right now, whenever using raytracing trying to do any movement of the object is incredibly slow and borderline unusable. I am trying to figure out if there is any setting or option to make it render better.

The computer I am using has an i9-12900k and 64gb of RAM, the only issue is the GPU as it is a little bit of an older card but when trying with a different computer with a 4070 I am experiencing the same issue.

2

Hi @shawn

The trick is to set number of sample to 4 and enable denoising.

Best,

3

Thank you for your help, the model looks a lot better however it is incredibly slow. When trying to move (rotate) the model, it is choppy and slow. Any advice on this would be helpful.

4

I mean, this is raytracing on CPU, so 1 or 2 FPS is expected.

Raytracing on GPU is possible using VisRTX and soon possible using OSPRay 3.0

5

I just wanted to make sure it wasn’t something wrong that I was doing. Thank you so much for all the help.