deltaMush

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This deformer implements Delta Mush: Joe Mancewicz, Matt L. Derksen, and Cyrus A. Wilson. 2014. Delta mush: smoothing deformations while preserving detail, SIGGRAPH '14, ACM, New York, NY, USA, Article 28 , 1 pages.

Delta Mush functions as a low-pass filter to remove deformation artifacts and guide the final result closer to the original "undeformed" geometry. It can be considered as a post corrector to any deformation stack.

Related nodes

deformer, sculpt, lattice, cluster, jointCluster, nonLinear, blendShape, skinCluster, boneLattice, wrap, wire, ffd, jointFfd, jointLattice, flexorShape, deformFunc, deformSquash, deformTwist, deformBend, deformWave, deformFlare, deformSine, baseLattice, clusterHandle

Attributes (21)

cache, cacheBindPositions, cacheDisplacements, cacheFrames, cacheGPUBindVerts, cachePinBorderVertices, cacheSmoothingAlgorithm, cacheSmoothingIterations, cacheSmoothingStep, displacement, distanceWeight, inwardConstraint, outwardConstraint, pinBorderVertices, scale, scaleX, scaleY, scaleZ, smoothingAlgorithm, smoothingIterations, smoothingStep

Long name (short name)	Type	Default	Flags
cache (cach)	compound	n/a
Caches relevant delta mush information per input mesh. If input data does not match current cached data, new vertex displacements will be recomputed.
cacheSmoothingAlgorithm (csa) short 0 Caches current smoothing algorithm used to deform mesh. For internal use only.
cacheSmoothingIterations (csi) integer 0 Caches current number of smoothing iteration used to deform mesh. For internal use only.
cachePinBorderVertices (cpbv) bool true Caches if border vertices are pinned or not during smoothing. For internal use only.
cacheSmoothingStep (css) float 0.5f Caches smoothing step amount to deform mesh. For internal use only.
cacheBindPositions (cbp) 3dFltPointArray nullptr Caches original mesh vertex positions during bind phase. For internal use only.
cacheGPUBindVerts (cbv) floatArray nullptr Caches original mesh vertex positions during bind phase for sharing with GPU. For internal use only.
cacheDisplacements (cdis) vectorArray empty Caches local vertex displacements to use on intermediate smooth mesh result.
cacheFrames (cfrm) 4dDblMatrixArray nullptr Caches smooth intermediate mesh vertex frames used when apply displacements.
displacement (dsp)	float	1
Linear interpolates local vertex displacements applied to the smooth intermediate mesh.
distanceWeight (dwt)	float	0.0f
Controls how the distance between verts will play a role in how the verts are averaged. When zero the distance has no effect. The higher the value the more important closeby verts become.
inwardConstraint (iwc)	float	0.0f
Limits the vertex motion to not go under the surface normal in order to preserve the current geometry contour
outwardConstraint (owc)	float	0.0f
Limits the vertex motion to not go outside the surface normal in order to preserve the current geometry contour
pinBorderVertices (pbv)	bool	true
If true, border vertices are pinned to their current position during smoothing.
scale (s)	double3
Local vertex displacement scale.
scaleX (sx) double 1.0 Local vertex displacement scale X.
scaleY (sy) double 1.0 Local vertex displacement scale Y.
scaleZ (sz) double 1.0 Local vertex displacement scale Z.
smoothingAlgorithm (sa)	enum	0
Type of smoothing algorithm. Only iterative laplacian smoothing using equal weights is currently supported.
smoothingIterations (si)	integer	10
Number of smoothing iterations to perform in order to remove deformation artifacts.
smoothingStep (ss)	float	0.5f
Step amount used per smoothing iteration. Higher values may lead to instabilities but converges faster versus lower ones.