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Re: xinteranimate [message #20876 is a reply to message #18396]

Mon, 31 July 2000 00:00

davidf
Messages: 2866
Registered: September 1996

Senior Member

Brian McNoldy (mcnoldy@cira.colostate.edu) writes:

> Has anyone ever experienced a memory limitation using XINTERANIMATE or
> CW_ANIMATE? I would like to load a large volume of data... but after
> loading about 260-290Mb of it, the frame loading ceases for no apparent
> reason. There is still plenty of RAM left, but the program just stops.
> It complains about not being to create a pixmap. Does the z-buffer have
> some deep-rooted memory limitation?

A pixmap is not the Z-buffer (in fact, the Z-buffer is sometimes
used as a way around these limitations).

I don't know about Windows 2000, but I suspect it may work
like Windows NT. Here is part of a communication to me
about this very topic from someone who is exceptionally reliable
about these things:

Under NT, device dependent pixmaps are allocated against the
video driver. The video driver can choose to place them on the
card or in system RAM. This is driver dependent. Now, under NT
(unlike the Mac and Unix) driver graphics resources cannot page
so you are limited to system memory no matter what (virtual
memory cannot be used for these pixmaps).

I suspect you are running into a driver limitation.

Cheers,

David

--
David Fanning, Ph.D.
Fanning Software Consulting
Phone: 970-221-0438 E-Mail: davidf@dfanning.com
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Toll-Free IDL Book Orders: 1-888-461-0155

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[Message index]

		Xinteranimate By: Christophe Marque on Tue, 28 December 1999 00:00
		Re: xinteranimate By: davidf on Mon, 31 July 2000 00:00
		Re: xinteranimate By: David Fanning on Thu, 16 September 2004 11:58
		Re: xinteranimate By: imcscastel on Thu, 16 September 2004 10:08
		Re: xinteranimate By: David Fanning on Wed, 15 September 2004 10:47

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