OTOY Forums

Hi,
I just bought Octane, testing it on my Macbook Pro retina. It looks promizing and I can't wait the Cinema4D plugin to be released for mac.

Well, i ran my first test today, and i've got an issue that i want to discuss here : do you know how to avoid the stranges pixels artefacts you can see in the red circles ?

thanks in advance for your help.

try to tweak with the hotpixel removal

Thank you Paolo, I'll look at it

Well, i tried a daylight animation, but the artefacts are still there...

Must I lower the hot pixel removal value, or raise it?
https://vimeo.com/64497284

If you're talking about the red/bright spots on the sun, on your video then:
You need to increase the saturate_to_white.

I'll try that one, thanks !

I made a second test...



In this case, i was figuring how to adjust contrast, but i'm very happy with the result, considering I stopped the render at 6mn (GTX 650M)

icelaglace wrote:If you're talking about the red/bright spots on the sun, on your video then:
You need to increase the saturate_to_white.

You rocks!



and this is a post-effect... no need to calculate the picture again... wow...

Hi,

Here is my third test... and some new problems...

This time, i'm facing dozens of white spots :



I'm in pathtracing mode.

Any clue about this one?

Edit : i switched to PMC and it looks better...

tegatwork wrote:Hi,

Here is my third test... and some new problems...

This time, i'm facing dozens of white spots :



I'm in pathtracing mode.

Any clue about this one?

Edit : i switched to PMC and it looks better...

Ya, PMC should clear that up a lot.
Also, try raising the caustics blur setting in your kernel settings. This might not help in this case, but sometimes it does.
The hot spot remover slider under image settings will zap some of them out, but it will begin to blur the image if you lower it too much.
Last, increase the size of your image. Those white dots are 1 pixel each, so if you have more pixels, those dots will be much much smaller.

It' seems a bit better now...