How can I make those black circle lines gone?

[truehuhuhu]

In DAZStudio:
create a primitive object: plane （100m×100m）
give the plane an OC material: diffuse(just use a texture RGBimage)
set the OC environment: sun light
kernel=direct lighting
Then, render the scene: some black circle lines appear on the surface of the image, how can I make those black circle lines gone?

[face_off]

Hi. It is hard to tell from just a screenshot. It could be a scaling issue (so scaling the scene up or down might resolve it). Or try adjusting the Ray Epsilon.

Paul

[truehuhuhu]

Yes!You are right Paul, it is because of the ray epsilon!Thank you!