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Re: Strange problems with IDL on my PC (memory allocation and 3d rendering) [message #43753]

Wed, 27 April 2005 09:41

Rick Towler
Messages: 821
Registered: August 1998

Senior Member

Roberto Ricci wrote:
> 2. The second problem is even more obscure... I noticed that I obtain
> better performances (half rendering times) by using software OpenGL
> (RENDERER=1) than hardware acceleration (RENDERER=0)!!!

A Quadro FX3000 is essentially an Geforce FX5900U which is quite a
capable card. As you presume, you should see quite a difference between
hardware/software rendering both in quality and speed.

> Please note that RETAIN is correctly set to 0

FWIW, I have a Geforce FX6600 GT and I have retain set to 1 (IDL default
for win32), have always had it set to 1, and have never had issues with
hardware rendering performance (except with ATI cards but that is
another thread). I would try changing this.

Are you running dual screens? In the nVidia performance and quality
control panel there should be an option for "Hardware acceleration"
which if you are running dual screens you'll want set to "Multi-display
performance mode). You may have to check "Show advanced settings" to
reveal this option.

Have you installed the latest nVidia Quadro drivers? Generally the
reference drivers from nVidia are the best way to go unless you have
very specific driver requirements.

HTH,

-Rick

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[Message index]

		Re: Strange problems with IDL on my PC (memory allocation and 3d rendering) By: Rick Towler on Wed, 27 April 2005 09:41
		Re: Strange problems with IDL on my PC (memory allocation and 3d rendering) By: George White on Tue, 26 April 2005 10:18
		Re: Strange problems with IDL on my PC (memory allocation and 3d rendering) By: R.G. Stockwell on Tue, 26 April 2005 09:16
		Re: Strange problems with IDL on my PC (memory allocation and 3d rendering) By: R.G. Stockwell on Tue, 26 April 2005 09:13
		Re: Strange problems with IDL on my PC (memory allocation and 3d rendering) By: karo on Tue, 26 April 2005 08:43

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