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I was rendering and old scene created few months ago with Octane for Max and I said w...f it's so slow???

Then I noticed wrong refractions on the glass, the lamp reflector is flattened on the back of the glass because the material is a mix (with mask) between two specular materials.

Also the image was noisy than the latest renders that I already computed few months ago.

Regarding the refraction I already posted this issue, I hope that Roeland is working on it.

The bad bug/issue is the impossibility to use now the new lighting system. Whatever light you will put in the scene will affect the rendering performance.

I compared the two Octane generations: 2.58f and 3.0c, same scene, same lights, nothing was touched.

Regarding the noise I donno what to think.... (o yeah because the more samples...)

Regards

gabrielefx wrote: The bad bug/issue is the impossibility to use now the new lighting system. Whatever light you will put in the scene will affect the rendering performance.

I will add ability to switch off proxy property for lights.

gabrielefx wrote: Regarding the noise I donno what to think.... (o yeah because the more samples...)

Probably because of low speed and wrong refractions.

gabrielefx wrote:Regarding the refraction I already posted this issue, I hope that Roeland is working on it.

This is already fixed. It will be available with the next release.

I compared the two Octane generations: 2.58f and 3.0c, same scene, same lights, nothing was touched.

Well, obviously that's not correct. The geometry has changed. The lamps have hoods now. If you do speed comparisons, ALWAYS use exactly the same scene. Anything else is useless.

But yeah, as we have mentioned before: Instancing comes with a cost. It introduces more complexity and more complexity is almost always slower. Hopefully soon we can do some performance work soon. Until now it has been mainly feature work only.

Regarding the noise I donno what to think.... (o yeah because the more samples...)

The same as with performance: Use exactly the same scene and render until you have the same amount of samples per pixel. Any other comparison is useless.

Cheers,
Marcus

EDIT: Sorry, for the rant, but please try to be objective. Your bug reports have been very helpful and we appreciate that a lot. What is important when it comes to performance comparisons is that you have a comparable setup, which means that the scene/camera/image must be exactly the same. And also keep in mind that we try to balance performance and features. There are still a lot of features missing so expect further slow downs. There is not much we can do except focusing on performance for a while and putting feature work aside.

I use Octane for max 24/7 from the day one, that's why I can find issues and ways to optimize it

The overall Octane stability is impressive compared to the other gpu rendering softwares.

Regarding the speed I always find a workaround, turning off all lights and creating mesh emitters, the on-off proxy feature will be very useful.

With Octane I make money, it's the best rendering tool that I ever used, more investments are coming.

Thank you for you job.