comp.lang.idl-pvwave archive: archive

Home » Public Forums » archive » IDL and OPENGL

Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend

Re: IDL and OpenGL [message #17301 is a reply to message #17065]

Wed, 29 September 1999 00:00

Liam Gumley
Messages: 473
Registered: November 1994

Senior Member

Richard Tyc wrote:
> Our group was having a meeting with some SGI folks yesterday and some
> interesting points were brought up which I hope some IDL experts could shed
> some light on. We were discussing the performance of IDL vs. OpenGL source
> based app.. Their point was that IDL is an interpreted language and as such
> is not optimized (or tuned as they put it) for OpenGL and thus runs
> significantly slower than a custom C app using OpenGL.

IDL does indeed run in an interpreting mode (at the command line), where
each statement is interpreted and executed separately. However once you
'compile' an IDL procedure, it is no longer 'interpreted' each time it
is called.

Perhaps someone in the know could give us a brief description of how IDL
procedures are transformed from source code to CPU instructions.

Cheers,
Liam.

--
Liam E. Gumley
Space Science and Engineering Center, UW-Madison
http://cimss.ssec.wisc.edu/~gumley

Report message to a moderator

[Message index]

		IDL and OPENGL By: enric on Mon, 06 September 1999 00:00
		Re: IDL and OpenGL By: ushomirs on Wed, 29 September 1999 00:00
		Re: IDL and OpenGL By: Richard Tyc on Wed, 29 September 1999 00:00
		Re: IDL and OpenGL By: ushomirs on Wed, 29 September 1999 00:00
		Re: IDL and OpenGL By: Liam Gumley on Wed, 29 September 1999 00:00
		Re: IDL and OpenGL By: Karl Schultz on Fri, 08 October 1999 00:00
		Re: IDL and OpenGL By: Karl Schultz on Wed, 31 October 2007 09:29
		Re: IDL and OpenGL By: Steve Houston on Wed, 07 November 2007 06:28
		Re: IDL and OpenGL By: David Fanning on Wed, 31 October 2007 05:31
		Re: IDL and OpenGL By: Gaurav on Tue, 30 October 2007 22:38
		Re: IDL and OpenGL By: Gaurav on Tue, 30 October 2007 22:31
		Re: IDL and OpenGL By: Robbie on Tue, 30 October 2007 15:17
		Re: IDL and OpenGL By: Steve Houston on Wed, 07 November 2007 06:52
		Re: IDL and OpenGL By: David Fanning on Tue, 30 October 2007 05:50

Previous Topic:	!path problem
Next Topic:	howto make a fits cube in IDL?

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Wed Oct 08 17:33:35 PDT 2025

Total time taken to generate the page: 0.00432 seconds