Page 1 of 1

MIX texture on HDRI mess up the gamma

Posted: Wed Dec 02, 2015 10:32 pm
by Yambo
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!

Re: MIX texture on HDRI mess up the gamma

Posted: Tue Dec 08, 2015 12:35 am
by abreukers
Hi Yambo, you may be right. currently the closest I could get:
comparison-sm.jpg
still trying out some more with other settings.

Re: MIX texture on HDRI mess up the gamma

Posted: Tue Dec 08, 2015 8:15 am
by Yambo
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.