Re: iMac Radeon HD 2600 doesn't support GL_ARB

Re: iMac Radeon HD 2600 doesn't support GL_ARB_shadow

Subject: Re: iMac Radeon HD 2600 doesn't support GL_ARB_shadow

From: "Chris Bentley" <email@hidden>

Date: Thu, 8 Nov 2007 11:38:41 -0500

Delivered-to: email@hidden

Hi Shirley, Aras,

I apologize for GL_ARB_shadow not being supported on the Radeon HD 2400/2600 drivers. We have no good excuses...

We are working on these extensions and they will be available at some point in the future.

chrisb

On Nov 8, 2007, at 11:24 AM, Aras Pranckevicius wrote:

I just found out that GL_ARB_shadow is not supported on the new iMac Radeon
HD2600 running OS 10.4.10. Does anybody know why and any workaround? My
shadow feature relies on this extension to work.

In theory, as Radeon HD supports OpenGL 2.0 and higher, shadow mapping
should just work even without extension present (ARB_shadow was added
to OpenGL core in 1.4).

The practice might be different however (I didn't try fixed function
shadow mapping on that card). If that does not work, the workarounds
would be to use GLSL or ARB_fragment_program.

--
Aras Pranckevicius
work: http://unity3d.com
home: http://aras-p.info
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Chris Bentley

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Advanced Micro Devices, Inc.

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References:
	>iMac Radeon HD 2600 doesn't support GL_ARB_shadow (From: "Shirley Carter" <email@hidden>)
	>Re: iMac Radeon HD 2600 doesn't support GL_ARB_shadow (From: "Aras Pranckevicius" <email@hidden>)