Re: [Visualpython-users] assertion error

[Scott D. D. <Sco...@Ac...>]

Bruce Sherwood wrote:
> .... Here's the nub of the problem:
> The following crashes hard, at least on Vista (and on XP):
>     f = frame()
>     b = box(frame=f)
>     b.opacity=0.3
> The following doesn't crash:
>     f = frame()
>     b = box(frame=f, opacity=0.5)
>     b.opacity=0.3

Checking a bit further, the following crashes:
 >     f = frame()
 >     p = sphere(frame=f, opacity=1)
 >     p.opacity = 0.99
 > The following doesn't crash:
 >     f = frame()
 >     p = sphere(frame=f, opacity=0.99)
 >     p.opacity = 1
 >     p.opacity = .3
 >     p.opacity = 0

So, a work-around is to create things you expect to tweak opacity
on as .99 opacity.  This doesn't get to the root cause, but does let
you move on.

--Scott David Daniels
Sco...@Ac...