Highlights are changing when adjusting the render resolution

[x11d]

Hello,
I am having a problem of disappearing highlights when changing to higher rendering resolutions: The realtime rendering looks like I want it to be, also when rendering in a 1920x1080 reslution. But when rendering in higher resolution in up to 7680x4320 the hightlits are almost completely gone.

I have done many quite similar renderings, but I never realized this behaviour.
Did anybody have that phenomena before and even more important: Can anybody give me a hint how to solve that? I have tried to change the render advanced settings in many ways, but I am not getting my desired result.

By the way: The screenshots are not fully rendered to the 150samples on the higher resultions, but even when waiting until the fully samples are reached the highlights are not getting better.

Stephan

[Rex]

Hey Stephan,

What material is that? Are you rendering with Maximum Samples mode?

Could you send us an example file? You can send to rex@luxion.com via keyshot.wetransfer.com

Thanks

[x11d]

Hi Rex,
thanks for your reply. I sent you an email including a link to the uploaded scene.

Stephan

[Rex]

It looks like it is the Mold-Tech texture causing the issue. We will investigate but for now I suggest using a different bump map and the plastic material.

[x11d]

 Rex,
Thanks a lot. As you mentioned, the reason was the texture. I created another material with the material editor ... works great now.

Stephan