Author Topic: Viewport Gamma  (Read 2257 times)

Hi,

I am just following the latest tutorials, great stuff! my only problem is, that my substance viewport looks as if gamma was too high

in contrary to the tutorials, the overexposure seems to be caused by the black input color of the metallic output - as soon as I plug a white color into the metallic output, the overexposure seems to be gone

I looked for "substance viewport gamma" via google and within this forum, but I found no answer to this problem

other than that, I really love substance designer. the learning curve is somewhat steep, but it´s a very rewarding process, and the baker is just AWESOME, guys!

thanks in advance!

I assume you are working with the PBR shader ?
Also can you give screenshots of you interface ?
Don't forget your log file. It can be exported from the Help menu of the software.
-----------
Froyok aka Fabrice Piquet, Technical Artist and Product Designer at Allegorithmic.

Hi,

yes, I am using PBR, here is a screenshot with PBR on the "Hoody"; diffuse pure black, metallic black, roughness white



I had assumed, that this should give me a black color in the viewport, not this flat grey, that´s why I believe it is overexposed
Last Edit: March 08, 2014, 02:45:54 am

so my basic question is: if I have black diffuse, black metallic, white roughness, shouldn´t the result be a pure black?

It can depends of the PBR shader. In case of Designer, even with a white Roughness you still get Fresnel reflection on your mesh (from your lighting, which in this case is the environment map). Here is a detailed explanation in case you are curious : http://filmicgames.com/archives/557
Don't forget your log file. It can be exported from the Help menu of the software.
-----------
Froyok aka Fabrice Piquet, Technical Artist and Product Designer at Allegorithmic.

Thanks for the link, I will dive deeper into that

this issue, that I can´t create pure black when using pbr, seems to be quite sticky.

I hope, this will help me end the confusion: http://www.marmoset.co/toolbag/learn/pbr-practice

Last Edit: March 09, 2014, 03:17:08 pm

Hi,

just wanted to share andrew maximows tutorials on PBR and PB maps

http://www.artisaverb.info/PBT.html
http://www.artisaverb.info/PBR.html

this helped me understand the issue, that I have posted in the beginning of this thread, and his maps are really a good reference to start with