vertex influences

Scripting in Blender with Python, and working on the API

Moderators: jesterKing, stiv

c-leo
Posts: 8
Joined: Tue Jul 01, 2003 10:41 am

vertex influences

Postby c-leo » Thu Aug 07, 2003 3:29 pm

What are the vertex influences?

nyoxi
Posts: 25
Joined: Fri Jul 25, 2003 8:14 pm

Postby nyoxi » Thu Aug 07, 2003 8:31 pm

When you have bones assigned then vertex influence is how much the vertex is modified when the bone moves. Its the bone-weight pair.

ascotan
Posts: 216
Joined: Thu May 29, 2003 10:32 pm
Location: Maryland, U.S.

Postby ascotan » Fri Aug 08, 2003 4:59 pm

yep. As i understand it the when your using an armature/bone vertex points are assigned to the bone. When the bone moves all the vertex points associated with the bone move too. You could say the amount the bone influences its vertex points is 100%. Half-life models work like this. The problem with this is that bending doesnt look realistic and the model deforms strange under extreme bending. However other model formats try to imporve on this by allowing the vertex points to be owned by multiple bones/joints. Instead of a bone having 100% influence on a vertex point the bone may only influence the matrix(positional/rotational info)of the vertex point by say 40% while another bone influences the matrix by 60%. This allows for better deformation of the mesh. These are refered to as bone-weights. So a vertex point would have multiple bone-weights, usally scaled from 0 - 1, that when multiplied times the maxtrix of the vertex point will give a new pos/rot matrix for the vertice.


Return to “Python”

Who is online

Users browsing this forum: No registered users and 1 guest