I realize that this scene is dark. I also know that all the light comes from emmisive materials. I hope that isnt the problem.
I tried to increase my min rate in adaptive subdivision to 1. should i use DMC?
please help!
Re: black splotches on surfaces…
The image is so dark it’s hard to tell what you are asking about…since you mention the possibility of switching to Adaptive DMC I suppose you mean the “speckled” reflections in the pipe rails. Start by increasing the subdivs in the reflection glossiness of the material. I doubt you’d need to switch to adaptive dmc to solve this, but it does produce nicer blur effects. In any event, don’t increase your min rate so high - if you’re setting it to 0 or higher then you might as well switch to adaptive dmc.
If that’s not what you mean, maybe you could post an image with the area circled?
Re: black splotches on surfaces…
sorry for the bad pic.
I made this picture a little brighter in photoshop, so you can really see the problem.
Re: black splotches on surfaces…
No wouldn’t be by first choice, DMC is to slow or noisy. Try more IM subdivs, for example 100 + 30 interpolation samples. If this dosn’t help try 150 + 40 or higher.