It will attempt to break into the debugger instead of aborting the program. On Windows you have a nice MessageBox function, so you can choose to break, ignore, or permanently ignore the assert.
Floating point imprecision made MT_Quaternion::angle return NaN, since acos(x) is NaN for |x| > 1.
Because of the way NaN's propagate through float math, the view pos would be set to [NaN, NaN, NaN] resulting in a grey screen.
So now by default, assert is not used in moto code.
If you want to use assert (and stop blender if one fail),
define MT_DEBUG.
solve bug #1292 and better fix for #1260
I took out the following from the includes in the intern dir that still had
it:
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
Kent
--
mein@cs.umn.edu
