My renders are yellow
LuminoDiscer
Posts: 35
in New Users
I am doing a space sci fi scene and I nead my image to come out clean. I have tried different lighting techniques but my scene still comes out yellowed.
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In which application, and if there's a choice using which render engine? An example iameg - as long as there's no nudity - might help to illuminate the problem.
DAZ Studio, rendering with NVIDIA Iray
The image finished rendering but is grany as if it did not finish.
It seems worse on some things than on others. How are you lighting the scene?
spot and point lights
What color are you using on the lights? I'm assuming you're just using a standard white color for the light. Are you using an environment to light the scene as well? Iray does a lot with reflective colors, so that might account for some of the yellowing. You might want to switch your lights to emissives. Those are easier to control in Iray in terms of getting the color light you're looking for.
And if push comes to shove, you can always postwork the piece in Photoshop or Gimp or your paint program of choice, just to give it a unified overall look. In Photoshop, I'd put a blue photofilter over it, dial it down to 50% and then dial that layer down to 30 - 50% depending on your artistic eye. :)
There are lots of ways to correct lighting. ;)
Here's what I mean. I just took it into Photoshop, put a Photo Filter over it with the "Cooling Filter (LBB)" at 50% and then left the layer at 100% opacity.
If the lights are set to Photometric on, what is their colour temperature?
I've tried emissives and it still gives me the yellowish hue. I tried switching my lighting color bluish and it helps a bit, but it's not completely gone.
I had thought about editing it later but I'd like to get the lights fixed if I can.
I tend to have temperature on the low side.
Thanks for your help
Low temp light is yellow
Oh! That could be it thanks I'll try increasing it.
It's still grainy though
Oh that is MUCH better. I'm glad Richard chimed in with the light temperature. That was what I was going to also suggest, but then I went off on the Photoshop option. :)
You will need to let it render longer to get rid of the noise.
It finished rendering, but is still grainy as if it didn't.
This is the most resent render I have done and it's still a little fuzzy.
Iray has three stop conditions - time (defaults to two hours), convergence (dfaults to 95%) and samples (defaults to 5,000 I think). if it stops for time or samples it may well still be noisy.