strange "bug"

[John_Do]

Hello,
I have a weird thing happened in a render, on a very simple scene : a cube, two lights, and a floor. See by yourselves :



One singular thing is that it happens in progressive and bucket modes but not in RT. It looks like a rendering "bug" since I didn't modify render settings, but I'm not a developer :3 . I can send the scene if needed.

[vladimir.nedev]

Did you use DR to render this ?

Yes, please send the scene, if you can.

Greetings,
Vladimir Nedev

[John_Do]

No DR involved, even if it looks like a typical DR bug.

I have sent you a link to download the scene in PM. I finally got a clean render, but I don't know why, suddenly. The bug also happened again in RT but disappear after a RT refresh. I have never seen this before.

[John_Do]

I have spotted a difference in the way curves are rendered between RT and Prod engines, see below. Why and how can I have the same result with Prod as RT does ?

(first is RT, second is prod )