PPT problem - update

[visumporec]

I was trying something to render with PPT but I had some splotches on image... Any suggestion to correct this problem will be appreciated
Render time was 20 hour for 2000x1333 px image on dual xeon 5365 with 30000 subdivision.
Here is the PPT settings



One part of image:


The same image rendered with brute force (20 subdivison) - 4 hour


Thanks
Alex

[vlado]

It does not look like path tracing; looks like an image rendered with the light cache for both primary/secondary bounces in Single frame mode.

Best regards,
Vlado

[visumporec]

I think that was in PPT mode but I'll try another one

[visumporec]

Like allways you are right. It was one undo before start render to change some objects and that had replaced ppt with single frame in light cache.
Thats happen when you are precipitiousness...

[visumporec]

Here is image rendered 100% with PPT (primary and secondary bounces)
What is needed to eliminate these white dots?
Should I increase some settings like subdivision (30000) or reduce sample size to 0.00 in LC or something else?
Thanks in advice

[vlado]

The dots are caustics from the glasses; if you want to remove them, there are two ways. The first is to turn off GI caustics. The second is to turn on photon-mapped caustics in the render settings, but not actually turn them on for any lights.

Best regards,
Vlado