[Mesa-dev] EXT_texture_snorm - is it possible in GL2?
brianp at vmware.com
Thu Mar 10 15:04:37 PST 2011
On 03/10/2011 03:46 PM, Marek Olšák wrote:
> The specification of GL_EXT_texture_snorm says:
> OpenGL 3.0 is required.
> This extension is written against the OpenGL 3.0 specification.
> which simply means we cannot advertise the extension on GL2.1. Would
> anyone be against violating the requirement?
Fine by me.
> The thing is even some of GL2 hardware can do it, and GL3 likely won't
> be supported anytime soon due to unresolved patent issues.
I think some OpenGL specs say they require a newer version of GL than
is strictly necessary. As a spec writer it's sometimes easier to base
the extension on a newer version of a spec than an older one. And
vendors tend to base their extensions on whatever of GL version
they're shipping, not older versions.
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