OTOY Forums

Hi all

I am rendering up some views for a project and the renders are really dark( materials, and scene) 800 iso and RGB light blue light enviroment. Any ideas?

Cheers

J

sure, fix it!
That is as close as anyone can get without anything to look at.
Except for those who'd mention raise gamma, exposure add material lights ofcourse, but now I did it so they dont need to

Just fyi,...
dunno about dark.. taking the scene on initial face value, to me on my mon it looks ok.
For me, the "ambient" light seems actually a bit too high for the light(s) in the scene, Can't say regards the lhs windows, but there's no direct evidence of large light throw from that side.

cheers!

One trick is to remove the walls behind the camera to let more light in.
Alternatively make windows in those walls instead if shooting for more realism.

Also, portals if you aren't using them!

It is a little dark. It appears to be a problem with the engine. I've noticed before that light doesn't seem to penetrate into a room like it does in real life. Presumably this is because in real life the light is bouncing off of things outside the window which means that sunlight doesn't only come from one direction. There should be an element of scatter which octane doesn't handle right now. So maybe you can fake this by adding extra lamps outside the windows.

Hi all

Thanks for the posts. I have removed the glass form the windows and looks better. @ steveps3 that is a problem with Octane, Indigo what I used to play around with did a pretty good job of this, but considering Octane is still Beta I'll let it slide So glass is still a light blocker I presume as it did not let any direct sunlight in the room with glass in place. Or am I missing something? What about RGB levels client gave me RGB colours and when I typed in the value, it did not look anything like the specked colours!

Cheers
J

[gk] wrote:sure, fix it!
That is as close as anyone can get without anything to look at.
Except for those who'd mention raise gamma, exposure add material lights ofcourse, but now I did it so they dont need to

LOL

If you want direct sunlight shining through the window into the scene, for the moment decreasing the opacity on the glass will do that
for you, try a value of about 0.4 . Also check alphashadows is enabled otherwise it will disable it.

thanks

How about camera fstop? Did you try that?

I think that the image is good.
You can adjust it with Photoshop and Nik plugins
If you save the image in exr format with tonemapping you will have an hdr like image.
You will adjust exposure and gamma.
Then you will convert it in 16 bit depth and you will be able to use all the ps plugins.

I always use this pipeline with my renderings:

save in exr 16 or 32bit floating point--->ps exposure+gamma--->16 bit--->ps brightness contrast--->Nik tonal contrast--->Nik denoise---> Nik sharpen edges--->Nik Viveza with control points--->ps selective color correction--->8 bit.