Fly through animation flickering problem ...

[AltoR]

Hello all

I am trying to do a very simple flickering free fly-through animation. So I created a very simple test scene (1 box, 1 teapot lit by a VRaySun).
I then calculated the irradiance map in multiframe incremental mode and the Light cache in fly-through mode and I am pretty happy with the result except on one point: there is a little flickering on the teapot (which handles some glossy reflections). Use Light cache for glossy rays is ticked. Quadratic AA filter. All other settings quite high values.

Any one here for helping me please ? I am so close from the goal ...

Link for the 8Mb video: https://rapidshare.com/files/4141068...ion_test_1.mp4

Thanks a lot

[super gnu]

you need to either use "clamp output" in the colour mapping section (clamp to 1 will kill all hdr info in your renders,but maybe you dont need that extra info anyway.. but clamp of 5 or 6 should still be ok..)

basically keep the clamp level as high as possible whilst fixing/reducing the problem...

or.. use subpixel mapping, but that will kill highlights a bit.. (likely also speed up your render)

or.. make the sun invisible

or, make the sun larger, so its not such a pinlike highlight

or, crank up your AA to sky high levels.

btw, are you using dmc aa or asub. ?

one or a combination of the above should see you right.

[super gnu]

looking again, it could just be a case of increasing the min rate on the aa.

if using asub AA, switch to DMC and try 3, 12 or something.

[AltoR]

I don't want to clamp my render to keep the full color range informations for the post prod stage.
I already used DMC with min/max rate set to 2/4. I switched to 3/12, rendered a frame and it worked like a charm !
I will have to render again the whole frames to see if everything is OK but I think there souldn't be any problem now.

Thank you super gnu, you're so kind and so clever

[Svetlozar Draganov]

It is always good practice to render a few test frames before you send the whole frames to the render farm.
Usually 5-10 frames are enough to find out if the animation is flicker-free or not.

[AltoR]

Yes I think that's the way to go, thank you svetlozar_draganov