[ODE] why setTransform() ?

Russ Smith russ at q12.org
Mon Jan 7 17:47:01 2002

> In the DrawStuff examples, there is a function setTransform that 
> tranforms the rotation matrix and position vector from ODE format to 
> openGl format. My question is, why do we need to do it? If ode's 
> format is column-major and openGl is also column major, why do we 
> need to transform

ODE's matrices have 3 rows, not 4. also, ODE matrices may contain
doubles whereas OpenGL matrices contain singles. so some kind of
setTransform() function is needed.


Russell Smith