linear blend skinning
Download
Skip this Video
Download Presentation
Linear Blend Skinning

Loading in 2 Seconds...

play fullscreen
1 / 7

Linear Blend Skinning - PowerPoint PPT Presentation


  • 269 Views
  • Uploaded on

Linear Blend Skinning. Same technique – different names. Linear blend skinning Skeleton Subspace Deformation ( SSD ) Smooth skinning (in Maya ). How it works? . Static character model (skeleton with joints) in neutral pose (dress pose)

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about ' Linear Blend Skinning' - sydnee-moses


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
same technique different names
Same technique – different names
  • Linear blend skinning
  • Skeleton Subspace Deformation (SSD)
  • Smooth skinning (in Maya)
how it works
How it works?
  • Static character model (skeleton with joints) in neutral pose (dress pose)
  • Each vertex assigned a set of influences with blending weight
  • Rigidly transform each neutral pose vertex (by all of its influencing joints)
  • Blending weights are used to combine these transformed positions
problems
Problems
  • It cannot represent complex deformations and suffers from characteristic artifacts (candy-wrapper, collapse effect on wrists and around bending joints)
  • Why?

Vertices are transformed by linearly interpolated matrices (collapses near 180 degrees)

solutions
Solutions
  • Avoiding such a dissimilar blending transformations (extra transformations that properly interpolates without collapsing
  • I.e. twisting wrists - extra joint that interpolates the rotation angle correctly
  • Could be used also for muscles, wrinkles and etc.
  • The key: since vertices choose weighted sums of transformations, if any linear scaling of an added joint is beneficial it may be used.
ad