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Chapter 3. Changes in Animation > Point Cache Modifier

Point Cache Modifier

The Point Cache modifier enables the user to create a cache file on disk that stores all the cumulative vertex transform information of an object. It essentially bakes or collapses any animated deformations made earlier in the Modifier Stack and saves it to disk for later playback.

When a cache file is saved, it is possible to disable the modifiers earlier in the stack so that, instead of calculating stack deformations on-the-fly for every frame, max can simply play back the collapsed vertex animation. This is useful for speeding up viewport playback on objects with complex, calculation-intensive deformations applied, such as those encountered when using the Flex modifier. This helps the animator preview deformations in the viewport in real time. It is also helpful when settings to modifiers such as Flex are finalized and the artists know that the animation on the object will not be changing. This way, the animator can concentrate on other aspects of the scene without having interactivity slowed by the now point-cached object. Additionally, it can be used to apply the same animation to copies of the object. By adjusting the start times for every object, more complex crowd-like motion can be quickly applied to a scene.


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