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View Full Version : Q for Per-Anders re MoGraph Extrude object

Mylenium
11-23-2006, 06:45 PM
Just been playing around with it a bit and I'm more than a tiny bit baffled. Is it really only generating baryocentric (per polygon) UVs? I was more expecting that it would properly generate "growing" UVs (V in extrusion direction, U in circumference). Any explanations would be welcome. I need to that it's not just my own stupidity before moving on to alternative techniques.

Mylenium
Kokosing
11-23-2006, 09:34 PM
I've noticed this too. I was expecting/hoping it would produce a nice stretchy feel as it extruded. But no luck so far.

W
Per-Anders
11-23-2006, 09:41 PM
What you see is what you get, the extrude deformer just runs a similar method as a matrix extrude.

Barycentric by the way is an engineering term that's unrelated to uv's (it's a normalised weighting system for calculating the COG or a biased balance point relative to other geometric key points), baryocentric is related to orbital paths. In 3D it's mostly used for phong shading algorithms and point weighting/vertexmap display as well as edge proximity algorithms on a per polygon basis.
cbowyer
11-23-2006, 10:27 PM
I knew that...
Mylenium
11-24-2006, 07:41 AM
What you see is what you get, the extrude deformer just runs a similar method as a matrix extrude.

That's bad then.


Barycentric by the way is an engineering term that's unrelated to uv's (it's a normalised weighting system for calculating the COG or a biased balance point relative to other geometric key points), baryocentric is related to orbital paths. In 3D it's mostly used for phong shading algorithms and point weighting/vertexmap display as well as edge proximity algorithms on a per polygon basis.

I know. But some other apps use it to describe per-polygon UV generation.

Mylenium
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11-24-2006, 07:41 AM
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