Reset Camera {Home} key and DBL CLICK Middle Mouse Button flips model

michaeldjackson wrote at 2012-10-18 18:07:

Why does the Home key and DBL CLICK middel mouse button always flip my model? I have all Viewport settings as default, meaning I don't set any Axis, UpDirection, LookDirections, etc.

I draw one simple pipe, run, hit home key and model flips upside down.

objo wrote at 2012-11-02 22:47:

The default up direction is (0,0,1) in this toolkit (as in mathematics, I know (0,1,0) is standard in computer graphics...)

Is your model using Y-up? Did you set the ModelUpDirection property of the viewport? There may be a bug. http://helixtoolkit.codeplex.com/workitem/9962