LookDev micro reflection at high roughness #59301

New Issue

Anton · 2018-12-13T10:39:32+01:00

Anton commented

2018-12-13 10:39:32 +01:00

Operating system: Win 7 Sp1
Graphics card: GTX 750 ti

Broken: 2.80, 6a5e809697, blender2.8

In LookDev mode there is a micro reflection on the model even if the roughness is rather high.

Operating system: Win 7 Sp1 Graphics card: GTX 750 ti Broken: 2.80, 6a5e8096973, blender2.8 ![2.gif](https://archive.blender.org/developer/F5939921/2.gif) In LookDev mode there is a micro reflection on the model even if the roughness is rather high.

Anton commented

2018-12-13 10:39:32 +01:00

Added subscriber: @FayScrin

William Reynish commented

2018-12-13 11:16:20 +01:00

Added subscriber: @WilliamReynish

William Reynish commented

2018-12-13 11:16:20 +01:00

This is likely just an issue with your material, but impossible to check unless you post a blend file.

Anton commented

2018-12-13 12:34:12 +01:00

In #59301#578728, @WilliamReynish wrote:
This is likely just an issue with your material, but impossible to check unless you post a blend file.

Material is a simple principled shader and difuse texture with normals. If you restart the blender, this behavior does not repeat for a while. I did not find out what specifically affects the appearance of this reflection. It is similar to Clearcoat but it is off.

> In #59301#578728, @WilliamReynish wrote: > This is likely just an issue with your material, but impossible to check unless you post a blend file. Material is a simple principled shader and difuse texture with normals. If you restart the blender, this behavior does not repeat for a while. I did not find out what specifically affects the appearance of this reflection. It is similar to Clearcoat but it is off.

msalv commented

2018-12-13 12:38:57 +01:00

Added subscriber: @moisessalvador

msalv commented

2018-12-13 12:38:57 +01:00

Your gif doesn't convey well. Please attach a blend file with the simplest example. Is it possible you are referring to this?

It's a know limitation of the way cubemaps are blurred, more visible if the cubemap has lots of small bright lights
You can try increasing the filter quality or changing the the cubemap resolution so it's less visible

refl.blend

Your gif doesn't convey well. Please attach a blend file with the simplest example. Is it possible you are referring to this? ![ball.png](https://archive.blender.org/developer/F5940855/ball.png) It's a know limitation of the way cubemaps are blurred, more visible if the cubemap has lots of small bright lights You can try increasing the filter quality or changing the the cubemap resolution so it's less visible ![Sin título.png](https://archive.blender.org/developer/F5940876/Sin_título.png) [refl.blend](https://archive.blender.org/developer/F5940839/refl.blend)

Anton commented

2018-12-13 13:42:46 +01:00

Changed status from 'Open' to: 'Resolved'

Anton closed this issue

2018-12-13 13:42:46 +01:00

Anton self-assigned this 2018-12-13 13:42:46 +01:00

Anton commented

2018-12-13 13:42:46 +01:00

Thanks for the advice but that's not the point. In any case, I can not reproduce until this problem. I'll have to close this question until I understand how to repeat it. Excuse me.

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LookDev micro reflection at high roughness #59301