Effect is jumpy

[zorak33]

I've animated the distortion factor of the glass effect in the FX tree, and the curve is on spline interpolation, but when I render the effect is jumpy instead of smooth... any ideas about why this is happening and can I fix it?

thanks for any help...

[pnoizat2]

it only recieves integers.
so even though your spline is smooth, its rounding up/down to the nearest whole number....

looks like you may need to do it with "real" 3d.....
good to see your giving the fx tree a beating though.
everything in order in there?
_sam

[zorak33]

mm, everything is w i c k e d.