I have a problem sometimes with Arnold on Cinema 4D.
When i'm using bump, i'm getting black edges/outlines on geometry with Displace.
I've got a floor using a displacement map and arnold tag.
Whatever is the setting i use in subdiv and displacement the problem is still here.
The only thing that makes it disappear is cutting off the bump or put it to 0
Here is a screen with bump on with 0.001 cm :
Without bump :
My bump is a layer RBGA that mixes 2 C4D Noises.
I Tried to plug only one C4D Noise directly, same problem. Same thing with an arnold noise.
I already had this problem on a pyramid without any displacement and other occasions. My bump is always problematic. Same problem if i use a texture image for bump or even a normal map ...
My only temporary solution is to bake my displace into geometry. When i'm doing this the problem is almost invisible, i can see it in some occasions but i can't find a real solution.
Thank you in advance.