how about blurring in animation

[BrandonD]

There are 3 ways to do motion blur in MAX. Object Motion blur is a per object property. It does very high quality motion blur but can render very slow because it adds geometry to your scene. It properly calculates the trajectory of geometry so if you have rotation there are no linear artifacts. However the one thing you never want to do with it is any kind of raytracing.

Image Motion Blur is a post process based on pixel velocity. It works fine in most cases but is not accurate and can often create artifacts.

Scene Motion Blur (Camera Motion Blur) is the traditional way of rendering subframes and dithering them together. This can be slow, but looks good.

Currently Mental Ray and VRay have some of the nicest motion blur for 3rd party renderers.

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