Degamma into interior rendering

[MrBraun]

Hello,

anyone have used degamma into interior rendering?
I have some problems about into light and material settings!

Tnx in advance!

[MrBraun]

Attached a simple scene!

[mdme_sadie]

Sorry your scene renders black here with or without DeGamma. Are you attempting to render using VRay? (there was a warning about a missing VRay material). DeGamma is not set up to work with VRay or external render engines beyond DeGamma-ing the colors and textures, you will need to manually add gamma correction in VRay as a post effect in order for it to work fully there to bring the final result back into the correct colorspace.

Your post isn't clear about what problems are you having, perhaps you could illustrate and explain further about the issue you are having.

[MrBraun]

Sorry Per, i have wrong into post the scene.
With 11.5 Vray don't work: for this i have buyed Degamma!
The problems are into settings: for interior i must leave, into GI settings, gamma=1 ?
Also, seems that with Degamma the light haven't effect into scene... sure that i wrong somethings!

Tnx for the answer!

MrB

[mdme_sadie]

Sorry I still don't understand what you're asking. With regards the GI gamma you can use whatever setting you want, for physically accurate then leave it at 1.0, but it's an artistic choice there.

I rendered the scene with and without DeGamma and the result is the desired output with correct (far better) light transport:

braun_ikea_no_degamma.jpg

braun_ikea_with_degamma.jpg

I'm not really able to see what the problem you're having is. The point of DeGamma is to get accurate and correct light transport on your display/final output, the manual explains this and how it works (pre-degamma the colors to linear color space, render, gamma correct to sRGB/monitor color space), the manual covers how and what Linear Color Workflow is and why you should use it, and what effect gamma correction has on the light in a scene.

braun_ikea_color_correction.jpg

If you apply just a color correction post effect modifying the gamma to 2.2 you can see that the result is similar in tonality (especially in this scene as there is little color and mostly just pure white light), the only difference really being in the washing out of the colors, which is the expected result without DeGammaing the colors manually beforehand.

Also if you're finding the changes in lighting surprising then once again it's important to understand that it's Linear Color Workflow! Not just a simple post effect that you apply after the event to improve your render. The emphasis is on the "workflow" part, you should have DeGamma enabled from the beginning of creating your scenes and light with it enabled in order to get the best result, you may even wish to enabled it in your viewport by enabling Enhanced OpenGL and Post Effects in the viewport options, that way you get the benefit of being able to light and texture in a far more predictable manner than without Linear Color Workflow/DeGamma.

[MrBraun]

Tnx for the answer Per!

I must improve more!