that's why Octane ies lights have never worked

[gabrielefx]

This is a simple test comparing Octane Vs Thea ies lighting.

This is a closed room with 64 photometric lights.
The same materials were created in Thea.

I used PT 16 bounces for both scenes and 5 minutes of rendering.

Octane ies lighting, distribution, sampling, directional features have to be reprogrammed from scratch.

Make your conclusions.

regards

[oguzbir]

Gabriele would you mind sharing the same scene I'd like to give it a go with other renderers
best

[sadece]

this is huge diffirance

[abstrax]

This is a simple test comparing Octane Vs Thea ies lighting.

This is a closed room with 64 photometric lights.
The same materials were created in Thea.

I used PT 16 bounces for both scenes and 5 minutes of rendering.

Octane ies lighting, distribution, sampling, directional features have to be reprogrammed from scratch.

Make your conclusions.

regards

That's a bold statement. What's the shape of the emitters? Unfortunately you made them transparent so we can't see them.

[aoktar]

Strange, so what's this?

[inlifethrill]

gabrielefx what did you use to orient the IES lights? I hope you didnt simply rotate the area lights to point downward..

Dobs

[gabrielefx]

I used path tracing, not direct lighting.
I will post the Max scene.

[gabrielefx]

This is the scene, it's quite simple.

You will find a layer with 64 flat 2d emitters, you can turn it on. This layer works better than standard ies, less noise, in fact I always use shapes for ies lighting.
I think that Karba did some mistakes creating ies lights in Max or there are issues in the kernel.

[aoktar]

I used path tracing, not direct lighting.
I will post the Max scene.

yes, this is PT.