Different result on different Corona version

[LorenzoS]

Hi all,
i have this strange results using different Corona versions.
It's a know bug?
The materials are glass and liquid inside with SSS.

Thank you.

[TomG]

We'd need to know more to be able to take a look at what is going on - at best, sharing the scene would be awesome (https://corona-renderer.com/upload), but if that can't be done then at very least some screen grabs of the materials in question :)

[LorenzoS]

Hi TomG,
i uploaded the file via dropbox.

thank you
lorenzo

[TomG]

I don't see the file there, did it upload successfully?

[LorenzoS]

I used alternative uploader, let me know, otherwise i try to upload again.

[maru]

@Tom it's lorenzo s****05.zip in the Dropbox repository.

[TomG]

Ah I got it now! Dropbox was helpfully forgetting that I want everything in date order :)

[maru]

The scene actually renders the same in V2 and V3. If you switch to Beauty in the VFB, you will see the same image.
The difference is in the LightMix result. If you reset the LightMix to values of 1 and pure white colors, the two versions will give identical results. But if you lower some intensities, you will see them become different.
I believe this is due to this fix:

• LightMix now properly works with lights having “Occlude other lights” disabled

So it is now the expected result.

[LorenzoS]

If i understand the problem was on the corona v2 was fixed on the v3.

thank you