Game Development Community

IK systems? has anyone attempted to implement this?

by James Brad Barnette · in Torque 3D Professional · 09/23/2009 (4:07 pm) · 1 replies

Has anyone tried implementing character IK systems. Perhaps something like HumanIK




Was wondering if something like this would require a total re-work of the animation system?

Also if someone could recommend other options that would be great as HumanIK is pretty expensive.
NextNext Thread
PrevPrevious Thread
More from Torque 3D Professional


Associate Manoel Neto
Default Studio Name
#1
09/23/2009 (4:24 pm)
It isn't hard to integrate a IK to the animation system. There are two ways to do it:

1) There is a node animation state called MaskNodeCallback, which allows you to specify a TSCallback-derived object. The object you specify will receive a callback right after that node is animated, with a pointer to the TSShapeInstance, the index of the node and a reference to its local matrix post-animation. You can then manipulate the local transform as you see fit.

2) After you call animate() on a TSShapeInstance, the object-space transforms for each node will be stored in the TSShapeInstance's mNodeTransforms vector. You can then change them as you want.

I implemented a simply 2-joint IK (using Maya's 2 bone solver code as a basis) using method #2, and didn't have too many problems.