MIX texture on HDRI mess up the gamma

Maxon Cinema 4D (Export script developed by abstrax, Integrated Plugin developed by aoktar)

Moderators: ChrisHekman, aoktar

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Yambo
Licensed Customer
Posts: 345
Joined: Tue May 12, 2015 1:37 pm
Location: Tel Aviv, Israel

Hi All,

I need to do a transition between 2 HDRI's and i cant get an accurate result. (it's not a rotation issue, I know plugin internally creates a transform when you have just an image texture so transform node with the right transformation is applied). Everytime i'm trying to put the HDRI inside MIX Texture something is messed out. Seems like a gamma issue, but any gamma change (0.4545) not solving that. I just can't reach the same looks with the HDRI inside a MIX Texture.

I can swear i'm doing everything right but this really ruining a deadline i need to hit :/ so any help will be awesome right now.
I've uploaded a simple scene, and some screenshot. What the hell am i missing?

Thanks!
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01.png
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abreukers
OctaneRender Team
Posts: 500
Joined: Thu Aug 18, 2011 12:28 am

Hi Yambo, you may be right. currently the closest I could get:
comparison-sm.jpg
still trying out some more with other settings.
i72630QM @ 2.00GHz | 6GB RAM | 2GB GeForce GT 540M | Win7 64bit
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Yambo
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Posts: 345
Joined: Tue May 12, 2015 1:37 pm
Location: Tel Aviv, Israel

Thank you for the comment - In this 'sphere scene' the difference is not that noticeable but in a complex scene there is a major difference. I spent many hours trying all the possible settings and nothing worked.
I talked to Ahmet regarding this issue and he told me he is a bit busy for that right now so i left it - But it's a major issue for me, I did a crazy workaround - exporting EXR sequance of the HDRI's from AE and animated the visibility of each HDRI environment (image attached) instead of just animation the MIX slider.

Hope you'll address this issue soon

Thank you.
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sss.png
4x 980ti EVGA | 5930k | Asus X99 E WS 3.1 | corsair 64GB RAM |SSD 500GB system + SSD 2TB working files + 6TB HDD storage WD |
Phanteks Enthoo Primo | 1600W EVGA T2 BLACK | It's the fastest 4x980ti build: http://goo.gl/hYp8e0 :)

https://yambo.me
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