Chaos Corona Forum

Chaos Corona for Cinema 4D => [C4D] General Discussion => Topic started by: fabio81 on 2016-05-26, 09:55:35

Title: problem gamma dynamic range in post production
Post by: fabio81 on 2016-05-26, 09:55:35

I have a problem with the dynamic range, the Cinema 4D workflow is linear and i loaded the HDR files into the diffuse channel of a standard material of Corona.
The lighting is correct but the exr file has no information of dynamic range and then down the exposure in post-production, I lose image information.
I also tried to load the HDR material, alone inside the tab environmet scenes, but I have the same problem

Title: Re: problem gamma dynamic range in post production
Post by: maru on 2016-05-26, 14:58:20

Hmm, I didn't manage to save the 32-bit information either. I'll let you know once I know the solution...

Title: Re: problem gamma dynamic range in post production
Post by: fabio81 on 2016-05-26, 15:12:45

Quote from: maru on 2016-05-26, 14:58:20

Hmm, I didn't manage to save the 32-bit information either. I'll let you know once I know the solution...

thanks a lot, is very important because, usually in vray, the render saved in exr or 32bit tiff, in post-production you can go down to 8 stop exposure under

Title: Re: problem gamma dynamic range in post production
Post by: fabio81 on 2016-06-01, 12:54:08

reading various posts on Corona render 3ds max section, I found that Corona does not produce a 32bit images with the full dynamic range inside. I hope i'm wrong but this is a big problem because in postprocessing, can serve often fall below some exposure stops in some areas of the image.
so it's like Corona save the EXR image 32-bit but within an 8-bit image