Deformer Graph

Deformer graphs allow for the manipulation of skinned mesh vertices at runtime. Has a range of applications for skinned meshes and characters.

Executes in the compute shader on GPU so it's generally pretty efficient. Can be disabled on a per-LOD basis via skeletal mesh asset details panel. "Stat gpu" command can be used to view performance of compute kernels. Epic documentation on deformer graphs

Practical examples of graphs can be found in the UE Content Examples downloadable from the Epic launcher

Currently, I use deformer graphs to achieve:

•Dual Quaternion skinning for Daz characters

•Performant and realistic body jiggle via verlet integration

•Enabling of morph targets on simulated cloth assets