Rune wrote:
> 
> My logic tells me that realistic motion blur never extents that far.
> "Overlapping" never occurs. I mean, in the video recorders the light can
> only be projected onto one frame at a time. So if you use 25 frames per
> second, the motion blur for a given frame will at most range over 1/25
> second. Therefore averaging frames will not be realistic.
> 
> So if you use realistic settings for the motion blur, MegaPOV's internal
> method is always faster (because non-blurred objects are only rendered
> once).
> 

This might be true if a) the camera doesn't move and b) non-blurred parts of the
scene take significantly longer to render than blurred parts.
With MegaPOV motion blur, you'd be rendering the blurred parts - say - 25 times
_every frame_
With the post-processing method you might need to render more frames to get a
smooth blur over a certain time interval - but not anywhere near 25 times more.

-- 
Margus Ramst

Personal e-mail: mar### [at] peakeduee
TAG (Team Assistance Group) e-mail: mar### [at] tagpovrayorg

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