OTOY Forums

Archviz interiors.
When i render using PMC i get good results - typical scenes are interiors with exterior sunlight being part of the overall lighting solution. no complaints about the resulting images.
However - i need to use Direct Light for current project because i need really fast renders (like 20 or 30 minutes instead of 6 hours). The only
problem i currently see is the skylight is changing the colour of my floor. Other items get affected too, but the floor is the main problem.
Light coloured floors become unrealistically saturated in blue - regardless of what time of day you make it or where you place the octane sun.

Even if you use Diffuse GI mode? You may have to sacrifice a little render time or refinement, but even 1 diffuse bounce could really help with your lighting.

I find that too slow for my current needs - and i have to increase the exposure so much i get blown out highlights (exterior glass walls as compared to interior spaces).
I have never really experimented with this much so did not know if this is the way it is with Direct Light or if there is a workaround.
The last time i worked on this specific space i used PMC and it was great - i had the luxury of time. Not massively so - but enough to get away with it.
Now i need maximum speed & Direct Light is just amazing for that. Currently my only solution would be to edit the floor and some other surfaces in photoshop after the renders are done. I dont want to have to convert the entire scene to vray.

This is the original (PMC) as compared to Direct Light test. Its the blue floor that just seems nuts.
PMC

DirectLight

you should increase the Ao distance and desaturate the blue color in sun colors.

nah, this is no problem. Just change teh white balance and pick the color of the floor. eventuelly if it goes into to much yellow reduce the blue a bit in white balance. this should work. i do it all the time this way.

I had already tried adjusting the white balance and sun colors. The results were not good. Too much yellow no matter where I sampled the scene and no matter how I adjusted the color sample manually.

don't know if the floor is a single texture but even if it was, I'd probably use the MATERIL ID channel for correct in post the color of the floor.
I think that is the simpliest way....wait for someone other suggestion

P.S. try to increase the AO distance or to lower the gamma, the second image lacks of contrast

Cheers, Paolo