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« on: 2022-04-01, 18:23:58 »
Hello,
I have a strange behaviour which I cannot explain to myself:
I have made a simple Animation of sweep nurbs (circle along a spline) which grow with increasing time. There are two sweeps: one with a smaller circle which runs a little bit ahead. This one has a simple Corona Physical Material, light blue with a 50% opacity. The other one has a little larger circle and runs a little bit behind the other one. This ha a light material with animated emission and animated opacity.
Now on my 475 frame animation there are some frames on which the light material behaves diffenrently and I cannot say why. On some frames the rendered light material seems to have less opacity and then on the next frame it is normal again. Definitely on these frames there is no animated keyframe or anything similar. This results in the animation to flicker on some frames. Strange is, that its seems to affect only some of the Sweeps on different frames. I have put different sweeps in one group and habve assigned the material to the group. So I would think that all sweeps should act the same and have the "flickering" on the same frame. But it's not so.
I have attached an example where there are three consecutive frames. On frame 322 everything is fine, on frame 323 one can see that through the light material you recognize the thinner sweep, on frame 324 everything is fine again.
When I copy those two sweeps into a new C4D-file it's still the same: on frame 322 and 324 everything is fine, on frame 323 the inner sweep shines through.
I also have attached those two C4D-scenes.
I use Corona Renderer Version 8 Daily Build RC 3, but didn't check if on Version 7 it's also like that.
Rendered it on Cinema 4D R25 117
Would be happy if someone could help.
Cheers
Börje