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At zooms about caustics test at Path Tracing kernel - OctaneRender vs GIMP

Posted: Mon May 11, 2026 6:14 pm
by nuno1980
Hello, guys! :)

-- ATTENTION: after rendered image, must use EXR (not JPEG nor PNG) image to save from OctaneRender. --
-> because read begin of my clicked message ;)

- Corrects on GIMP - (choose a mirror to download - here)
Corrects on GIMP.png

- Incorrects on OctaneRender standalone -
Incorrects on OR.png
Both apps at 50% zoom

OctaneRender: 50% zoom seems to be correct, if any image has +/-2M or higher spp* at our sun. While if any image has lower than 500k or 1M spp, colors and noises are wrong. At less than 25% zoom has bad antialising.
But on GIMP, any zoom, colors and noises are correct.

* - spp is samples per pixel or px.

Best regards. ;)

Re: At zooms about caustics test at Path Tracing kernel - OctaneRender vs GIMP

Posted: Tue May 12, 2026 10:00 am
by nuno1980
Hello, guys. :)

New image - OR vs GIMP, with the showed number of spp for region (not full image) on GIMP (not OR)
3 zooms - OR vs GIMP.png

-> Please, should correct bad colors (poorer, weaker and darker) noises issue for 50% zoom and fix bad antialising issue for lower than 25% zoom in next version of OctaneRender for match GIMP app. :)

Best regards. ;)