[Bf-python] New Mathutils and old Math - Letter rip.

[Tom M]

> Hi, quick message.
> I was using LetterRips function to get the worldspace coords for the
> mouse in the 3d view. as used by the sculpt mesh script.

For that function credit goes to my coauthor Michael Schardt,

> Recently I found that it stopped working in perspective mode, is awyone
> aware of why this might happen?

Yikes!  I never use perspective mode, so hadn't noticed myself.

I'll see if I can find when/what changed.

LetterRip