For bone nodes, the Transform is computed by multiplying the parent offsetMatrix by the inverse of the node's offsetMatrix
Note that this currently disables the LimitBoneWeights option since that results in the removal of bone nodes that are not attached to a mesh.
Without the bones there is no way to retrieve the offsetMatrix, so the Transform cannot be computed correctly
Fixes LYN-3755
* Abort calls in AssImp, which occur when an assert is hit in builds that have asserts enabled (like debug) no longer generate a popup. Instead, they are captured as errors and an asset processing failure.
* Added missing include
* Added check for _WRITE_ABORT_MSG, so platforms that don't have it but have signals enabled (Linux profile) compile correctly
* Helios - LYN-3250 - Fixed morph targets for meshes that had multiple materials (#374)
Fixed morph targets for meshes that had multiple materials and were split by AssImp: Recombined them into one mesh in the O3DE scene graph, so the behavior would match FBX SDK.
Steve Pham
amzn-mike
AMZN-stankowi
alexpete