Thursday, June 02, 2005

Pre Demo Update

Welcome to June!

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Realigning the TCP

The drilling tool has been attached to the haptic device. The greater part of today was spent realigning the TCP position. The old TCP was at the tip of the stylus pen which was only a z translation. The offset of the drilling tool and the angle of which it is attached requires a translation in all three axes.

Octrees

This week I decided to convert the voxel shell into an octree. Collision detection and simulating cell removal have not been integrated yet. It is not clear whether there is an improvement over using the old way. The memory requirement of an octree might offset the benefit of optimized drawing.

Currently 7 levels is the limit for my machine which amounts to the 128^3. The processor runs at 100% using both methods. The real test will be on the deformable shape. I plan on writing code to allow both techniques to be used.

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