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Erratic Behaviour of VRAY Material Options


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#1 mensch.mueller

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Posted 24 May 2018 - 09:04 AM

Hi,

With latest 3.6.1 (on OSX 10.9.5 Mavericks) I get rather inconsistent results. Scene materials are all setup as: Material Options -> Affect Alpha -> Black Alpha (-1).

3 planes with 3 different materials(they are even the same, copied materials (2 of them with a different Material_ID color)).

And even after saving and reopening scene, rendering is different!

 

Cheers Michael

Attached Thumbnails

  • Kottel 4-2 screenshot 1.jpg
  • Kottel 4-2 screenshot Alpha.jpg
  • Kottel 4-2 screenshot Material-ID.jpg
  • Kottel 4-2 screenshot 2- reopened.jpg

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#2 mensch.mueller

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Posted 24 May 2018 - 09:22 AM

I can´t edit text of last post! so:

Edit: after reopening the scene, it even gets a blue tint! (last picture).

 

2nd Edit: Top plane is made with an older version of VRAY, and it seemed that Material Options

- are different? or 

- not saved properly or

- different interpreted

 

 

 


Edited by mensch.mueller, 24 May 2018 - 09:35 AM.


#3 mensch.mueller

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Posted 24 May 2018 - 09:39 AM

More Edits:

 

Bluish light comes from a SunLight, but I never reset scene, strange!

 

Edit:

It seemed that to get same results as the old upper plane, I have to uncheck -> Visible To Camera!

But results are really inconsistent. Are there any changes made to the materials, and how they are changed?

 


Edited by mensch.mueller, 24 May 2018 - 09:50 AM.


#4 mensch.mueller

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Posted 24 May 2018 - 10:35 AM

After a few hours trying to get something out...

All the (three) materials are set as:

-visible to camera

-visible to Reflection/Refraction

-Affect Alpha -> Black Alpha(-1)

 

It gives totally different render results before(pre) and after opening(after) the scene !

 

So there seemed to be something totally wrong with VRAY(3.6.1 Build 1191 May 16) on FormZ 8,6.2 (build 10099) on OSX 10.9.5 Mavericks on my MacBook Pro 15 Retina 2014....

 

Cheers Michael

 

Attached Thumbnails

  • Kottel 4-2 pre.jpg
  • Kottel 4-2 pre.Alpha.jpg
  • Kottel 4-2 pre.MaterialID.jpg
  • Kottel 4-2 after.jpg
  • Kottel 4-2 after.Alpha.jpg
  • Kottel 4-2 after.MaterialID.jpg

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