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Re: iTools hardware rendering [message #59143 is a reply to message #58914]

Tue, 11 March 2008 10:08

Steve Houston
Messages: 3
Registered: November 2007

Junior Member

sjwelch wrote:
> Greetings all,
>
> I'm having a string of problems relating to hardware rendering in IDL
> itools:
>
> Before I start, system specs are as follows:
> Hardware: Dual-core P4 @ 3Ghz, 2GB, 256MB ATI Radeon X600
> Software: IDL 6.3 on Windows XP Pro, ATI Catalyst Driver 08.2 (and an
> earlier version..)
>

Do you have access to IDL 6.4 or later?

Significant improvements were made to rendering performance in 6.4 by
using OpenGL vertex buffer objects whenever possible.

In 6.3 one of your CPU cores is maxed out sending points one by one to
OpenGL. So 50,000 points means 50,000 calls to glVertex.

In 6.4 only one call is required to render all 50,000 points, moving the
workload from the CPU to the GPU.

Regards,
Steve.

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[Message index]

		iTools hardware rendering By: sjwelch on Mon, 25 February 2008 15:43
		Re: iTools hardware rendering By: Steve Houston on Tue, 11 March 2008 10:08
		Re: iTools hardware rendering By: sjwelch on Mon, 17 March 2008 16:29

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