Still an issue with material mix node or alpha image node

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A. Operating System, including version (i.e. Win 7, OSX 10.11.2, Ubuntu 14.04, etc.)
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User avatar
dreif
Licensed Customer
Posts: 40
Joined: Tue Mar 01, 2011 1:21 am
Location: ohio

Hi, I've been using this node set up for ever to do over painting and decaling
but since 16.3 and up I'm getting the results shown. Is this still an issue with
the Octane Mix Material node or maybe the Octane Alpha Image node?
Attachments
mix material or alpha_001.jpg
Win 7x64/GTX TITAN/Amd Phenom IIx4 955/16gb (The render tra la la)
J.C
Licensed Customer
Posts: 1856
Joined: Thu May 13, 2010 6:35 pm
Location: Wrocław

In standalone (v4 and 2018) it works as expected. I latest Test Blender plugin it also works as expected but it is inverted :/
CPU – i9 13900KF, 128GB RAM, GPU – RTX 4090
System – Windows 11
My Behance portfolio, Blender plugin FB support group
DrawFun
OctaneRender Team
Posts: 375
Joined: Fri Aug 25, 2017 5:02 am

Hi dreif and J.C,

Thanks for your reports and sorry for the inconvenience.

In current blender builds(16.3.x and 17.x), we fixed a legacy bug in mix material which has been there for years.
Basically previous builds inverted the order of mix material inputs and now the order is correct.

In the next build, we will fix the backward compatibility bugs so you don't have to change your scenes manually.

If you want a quick patch in current builds, here I wrote some script to help you invert the inputs automatically. It works fine in the tests. Please let me know if you have any questions. Thanks!

Usage:
1. Close OctaneBlender

2. Download, uncompress and replace your "compatibility.py" under "[OctaneBlender Folder]\2.79\scripts\addons\octane", e.g. for me it's "D:\OTOY\softwares\BlenderOctane17.1\2.79\scripts\addons\octane".
- For Mac, it is put under "[blender.app folder]/Contents/Resources/2.79/scripts/addons/octane".

3. BACKUP your scene file

4. Open your scene with OctaneBlender. Now the order of mix material inputs should be inverted.

Please let me know if you have any questions. Thanks!

Cheers,
DrawFun
Attachments
compatibility.7z
(1.78 KiB) Downloaded 175 times
J.C
Licensed Customer
Posts: 1856
Joined: Thu May 13, 2010 6:35 pm
Location: Wrocław

This is not working.
File was saved in 15.3.4 then opened 16.3.1 and 17.1 with updated compatibility.py file. After opening the order of mix material inputs is not inverted.
Attachments
mix material.blend
(772.03 KiB) Downloaded 177 times
CPU – i9 13900KF, 128GB RAM, GPU – RTX 4090
System – Windows 11
My Behance portfolio, Blender plugin FB support group
User avatar
dreif
Licensed Customer
Posts: 40
Joined: Tue Mar 01, 2011 1:21 am
Location: ohio

I'm thinking it's the 7zip file it's self. I get this when testing the file in 7zip.
Attachments
7zip test.jpg
Win 7x64/GTX TITAN/Amd Phenom IIx4 955/16gb (The render tra la la)
DrawFun
OctaneRender Team
Posts: 375
Joined: Fri Aug 25, 2017 5:02 am

Hi J.C and dreif,

Could you please try this one? Please change the extension from .txt to .py before you use it. Thanks.

Cheers,
DrawFun
Attachments
compatibility.txt
(7.55 KiB) Downloaded 184 times
User avatar
dreif
Licensed Customer
Posts: 40
Joined: Tue Mar 01, 2011 1:21 am
Location: ohio

Thank you DrawFun, all is working! :)
Win 7x64/GTX TITAN/Amd Phenom IIx4 955/16gb (The render tra la la)
J.C
Licensed Customer
Posts: 1856
Joined: Thu May 13, 2010 6:35 pm
Location: Wrocław

DrawFun wrote:Hi J.C and dreif,

Could you please try this one? Please change the extension from .txt to .py before you use it. Thanks.

Cheers,
DrawFun
This one is working, thanks!
CPU – i9 13900KF, 128GB RAM, GPU – RTX 4090
System – Windows 11
My Behance portfolio, Blender plugin FB support group
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