CPU powers drops

[Tom]

Hi,

I have an issue on a very simple scene made of a few walls and a ceiling, timber floor and a coffee table.
It is lit by a Corona Sky environment map. Every objects are assigned a simple plain grey CoronaPhysicalMtl.

When I hit render (production renderer), everything works as expected: the cpu runs at 100%.

But as soon as I apply the 'White Paint' material to an object, the cpu usage drops to around 40%.

If I get of this material and I apply back the grey neutral material, the cpu usage hits 100% again.

The same problem arises if I use the IR.

I can send you the scene if needed (3ds Max 2023.3.3, Corona 10 hotfix 1)


Thanks for the help.

[pokoy]

Could it be that the material uses the Triplanar map somewhere?

You could be running into the problem with this map recently reported here for v10:
https://forum.corona-renderer.com/index.php?topic=40848.0

[Tom]

Thanks for letting me know.

[romullus]

Duplicate: https://forum.corona-renderer.com/index.php?topic=40848.0

[maru]

We have just released a new daily build of Corona 11 with a fix for Triplanar map performance issues. You can find it here:
https://forum.corona-renderer.com/index.php?topic=40442.msg217142#msg217142
 
Please test it and share your results with us.