Re: [Openexr-devel] working with "half float" textures in OpenGL

[Paul Schneider]

Hi, Paul,

half support is part of Apple's "float pixels" extension.  Check out

http://developer.apple.com/graphicsimaging/opengl/extensions/ 
apple_float_pixels.html

for how to use this feature.


- Paul



On Feb 28, 2005, at 8:28 AM, Paul Miller wrote:

> Drew Hess wrote:
> > They're not.  But you can use the ATI half type to get filtering of
>
> Does anyone know which Apple systems come with hardware that supports  
> the half type? I note my ATI Radeon 9600 XT (that came with my dual  
> G5) doesn't expose any "half" extensions, but does support  
> GL_APPLE_float_pixels.
>
> > half textures (only half, not float) on NV40-class hardware.
> > Ciaran Wills <address@hidden> writes:
> > > On Fri, 2005-02-18 at 13:58, Paul Miller wrote:
> > >
> > > > GL_FLOAT_RGB16_NV textures don't seem to be filtered on my 3400FX  
> > > > either. But I remember reading something about float textures only  
> > > > being point-sampled. Not a huge deal for what I am doing.
> > >
> > > I swear I had my 1100FX doing it a couple of months ago, but as I  
> > > can't
> > > get it to do it again now I may well have been imagining it :(
>
>
> --
> Paul Miller | address@hidden | www.fxtech.com | Got Tivo?
>
>
>
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