Delete Non-Deformer History lets you delete history nodes upstream or both upstream and downstream from your object’s deformations and then bake the remaining history. This is useful when you want to delete modeling operations from your object’s history or any other nodes that are slowing down your scene’s recalculation time. Delete Non-Deformer History can also improve your scene’s performance and reduce its file size.
Delete Non-Deformer History propagates Blend Shape topology. See Propagate topological changes from base shapes to their target shapes.
Not all modeling operations can be baked such that they create exactly the same effect after baking. For example, imagine the history contains a skinning operation followed by a smooth. Before baking, the smooth operation is performed each time the skin deforms, so it will smooth differently depending on the output of the skin. When the smooth operation is baked into the skinning, the skin will be re-weighted based on the smooth points to attempt to approximate the original behavior. However, the skin node does not perform the smooth operation, it merely performs skinning with the newly calculated weights and the result will not be identical to before the bake.
Select from the following options:
Deletes only the history upstream from the selected object’s deformations.
This option maintains any modeling history downstream of skinning and it does not change the appearance of your object. For example, you may want to keep a Smooth polygons operation on a low resolution mesh to preserve the high resolution mesh that is generated by the smooth.
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