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Submitted by , posted on 11 June 2003
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Image Description, by
These images demonstrate a mesh skinning algorithm, that i developed in the
context of a project for the university of Linz, Austria. The algorithm
uses a bone hierachy for deforming a low-poly mesh in real time. Each bone
has a static transform matrix describing the position of the bone in the
skeleton hierachy. You can see the initial values of the bones in the two
upper images. The two lower images show the dynamic behavior of the bones
(left) and the resulting deformation of the mesh (right).
The mesh consits of 162 vertices, skinning weights/indices and texture
coordinates are pre-calculated. The dynamic movements of the bones are
sine/cosine functions, also key-frame interpolated animations are possible
but not implemented at this time. The skeleton contains 17 bones.
The rendering is done with Direct3D 8.1, input processing with DirectInput.
The D3DXMesh helper functions didn't satisfied me, so i decided to design
my own mesh skinning framework.
If anyone wants to know more about this skinning algorithm or check the
source code, please contact me by email.
The demo is available here: iotd-06-11-2003_meshskin.rar (413k)
Alex
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