COSMOS assets materials mostly wrong.

[jojorender]

Hi all,
Is it just me or are many COSMOS materials still wrong? It’s mostly random IOR values, or (Maxtree’s) leaves with self illumination ticked on, etc.
I can never use assets out of the box, always have to check everything.

[masterzone]

IMHO A big part of Cosmos Material requires careful attention from who upload it into the library. I don't know if there someone who care the Quality Control. There many trees with IOR set to value 2 or similar.
I know that the library must be useful for Corona and Vray but there a lot of work to do into the material side...

[runx]

https://forum.corona-renderer.com/index.php?topic=42843.0

[bnji]

Hello everyone,
Thanks for reporting things like this.
I'll forward this to a dedicated team so that they can further investigate this and improve the overall workflow.

[bnji]

Hello @jojorender


Could you please try the following:
-Make sure your Cosmos Browser is up-to-date
-Try one more time importing the asset and see if the issue persists
Note: If there's a pending update for the material, please make sure to update it before importing it into your scene.
Additionally, you can try deleting the downloaded asset first, then downloading it again and importing it to your scene.
Please let me know if the issue persists.
Cheers!

[jojorender]

Your screenshot shows the same issue.
Why is the IOR value 1.0? This is obviously wrong.

[jojorender]

I checked other “new assets” (sorted by date) and their materials are also a mess.
Why does a tree trunk have the same IOR as air? Leaves with self illumination?
Given that we're paying for a subscription to access these assets, we expect them to be of high quality and free from such errors.
What steps are you taking to ensure that future assets are accurate and reliable?

[davetwo]

+1

I guess many are automatically converted from V-ray. But its pretty shoddy IMHO. It wouldn't take that long to check them properly for the Corona versions.

Many less experienced users will leave them as default. Or even use them as 'official' examples of how they should build their own materials. Both are poor outcomes.

[brr]

Hi all,
Is it just me or are many COSMOS materials still wrong? It’s mostly random IOR values, or (Maxtree’s) leaves with self illumination ticked on, etc.
I can never use assets out of the box, always have to check everything.

Many Chaos Cosmos assets (especially old evermotion) are simply outdated and have old shader setups: completely strange IOR values, no reflections, oversaturated, ultra-bright, or ultra-dark textures, etc. Just my opinion. You can check this by opening them using vray.

[frv]

I noticed that exports from Vectorworks to C4D also have very low IOR values when I convert these VW/Cinema materials. I need to manually change those. Maybe something in the Corona convertor is mixed up.