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Re: [Q]IDLgrImage Blend_Function [message #19389]

Fri, 17 March 2000 00:00

Struan Gray
Messages: 178
Registered: December 1995

Senior Member

Rick Towler, rtowler@u.washington.edu writes:

> In other words, the image fades out to the
> background color, but you still can't see what
> is "inside" or behind the poly. I can't see the
> axes which fall inside my outer object nor can I
> see the inner object.

Excuse me if I'm teaching you how to suck eggs, but have you
considered the order in which the objects are plotted? This is
determined by the order in which they are added to their enclosing
IDLgrModel and/or IDLgrView. From the IDL_Container docs:

"Objects located "behind" other objects in
three-dimensional space must be rendered before objects in
front of them, even if the "front" objects are translucent."

Struan

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