Differences In IPR and Production Render

[Northlogic]

Hey all

I would post this to the forum, since I'm sure you guys have a lot on your hands but I for some reason wasn't permitted to write on the forums even though I asked for the permission, anyway. I have drastic differences on when rendering with IPR and when switching to production rendered. Settings are the same. GPU is RTX 2080 with 411.63 driver. Images attached.

Thank you!

[matanov]

By posting your GPU hardware, I guess you are using V-Ray GPU. In V-Ray GPU, IPR uses BF+BF and production uses BF+LC by default (way more GI bounces). About the other differences I'll need the scene and issues listed one by one.

[Northlogic]

By posting your GPU hardware, I guess you are using V-Ray GPU. In V-Ray GPU, IPR uses BF+BF and production uses BF+LC by default (way more GI bounces). About the other differences I'll need the scene and issues listed one by one.

Oh right. I completely forgot about the calculation methods, I'll have to check those and see can I get them closer together. Thanks! And yes I am using V-Ray GPU. Next 1.1 version.

[Northlogic]

How do I actually change the rendering settings for IPR and for when I click "Render Production"?

[matanov]

IPR is BF+BF forced, but you can change the GI method of the production in the Global Illumination rollout. There is also a specific "IPR Ray per pixel" setting in the Performance tab, everything else should be valid for both.