Replaces the current object’s geometry cache frames specified in the Replace Geometry Cache Frames Options window. See Replace geometry caches. This lets you strategically replace individual cache frames in a geometry cache file. For example, you can improve an object’s cached deformations by remodeling parts of the object at specific frames and then replacing those frames in its geometry cache file.
You cannot replace geometry cache frames for an object that has more than one geometry cache node.
Geometry Cache > Replace Cache Frame > 
Opens the Replace Geometry Cache Frames Options window. This window lets you specify which geometry cache frames are to be replaced for the current object’s geometry cache.
When on, the current object’s geometry cache frame is replaced, and backups of the original unchanged cache and description files are generated (named backup#_originalCacheName by default).
For example, if you want to replace frame 12 in a geometry cache, this option lets you create a cache for frame 12 only and then replaces frame 12 in the selected object’s current cache with the newly created cache frame. Current Time is on by default.
When on, the range of frames from the Start Replace Frame to the End Replace Frame is replaced for the current object’s geometry cache and backups of the original unchanged cache and description files are generated (named backup#_originalCacheName by default).
For example, if you want to replace frames 10 to 20 in a geometry cache, this option lets you create a cache for frames 10 to 20 and then replaces that frame range in the selected object’s current cache with the newly created cache. Start/End is off by default.
When creating a geometry cache, one sample of your object’s deformations is taken every frame and saved to your cache by default.
Evaluate every frame(s) specifies how often samples are taken during geometry cache creation. For example, a value of 2 caches the deformations of the current object at every other frame of the Cache Time Range.
Save every evaluation(s) specifies which samples are saved during geometry cache creation. For example, a value of 2 specifies that only every other sample specified by the Evaluate every frame(s) option is saved to your geometry cache.
For more information, see Geometry cache creation.
When on, the cache frames you want to replace are deleted from their cache files on disk. The deletion is permanent, and cannot
be undone by Edit > Undo or 
+z.
These fields let you specify a start and end frame for the range of cache frames you want to interpolate. Typically, the interpolation range would start before the frames you want to replace and end after the frames you want to replace. Start Interpolation Frame and End Interpolation Frame are only available when Interpolate Frames or Rename Interpolated Frames is on.
These drop-down menus let you specify a tangent type for the cache interpolation before (In Tangent) and after (Out Tangent) the geometry cache frames you want to replace. This is useful when you want to smooth the interpolation between an object’s replaced cache frames and the rest of its geometry cache.
