Forums > Jitter

RadeonX1600

November 28, 2006 | 5:17 pm

I am working through the shader tutorials and wonder whether the X1600 GPU
in my Intel MacBook is one that supports programmable shaders.

Cheers
Gary Lee Nelson
Oberlin College
http://www.timara.oberlin.edu/GaryLeeNelson


November 28, 2006 | 5:40 pm

Definitely. That’s a nice one. Any GPU made in the last 3-2 years
will support shaders.

wes

On 11/28/06, Gary Lee Nelson wrote:
> I am working through the shader tutorials and wonder whether the X1600 GPU
> in my Intel MacBook is one that supports programmable shaders.
>
> Cheers
> Gary Lee Nelson
> Oberlin College
> http://www.timara.oberlin.edu/GaryLeeNelson
>
>
>


November 29, 2006 | 9:09 am

Hi i’ve got the Radeon x1400 graphics card, and it seems that some shaders
don’t work properly from the tutorials. I thought this was due to my
graphics card, but Wesley’s statement that "Any GPU made in the last 3-2
years will support shaders." assumes that there is no gradation in enabling
shader functionality.
… what i was wondering is exactly that: if shaders are *enabled* than all
shaders should work?
is that so? if not, how can one determine what a gpu will deliver?

d

On 11/28/06, Wesley Smith wrote:
>
> Definitely. That’s a nice one. Any GPU made in the last 3-2 years
> will support shaders.
>
> wes
>
> On 11/28/06, Gary Lee Nelson wrote:
> > I am working through the shader tutorials and wonder whether the X1600
> GPU
> > in my Intel MacBook is one that supports programmable shaders.
> >
> > Cheers
> > Gary Lee Nelson
> > Oberlin College
> > http://www.timara.oberlin.edu/GaryLeeNelson
> >
> >
> >
>


November 29, 2006 | 10:36 am

> … what i was wondering is exactly that: if shaders are *enabled* than all
> shaders should work?

Shaders are limited by the hardware of the graphucs card and the
drivers running them. Some GPUs have higher instruction counts than
others so they can run more complex shaders that older graphics cards
might not be able to.

> is that so? if not, how can one determine what a gpu will deliver?
>

Try it out. The compiler will optimixe things a bit, so it can be
hard to say if a certain piece of code will run or not if it’s a
borderline case.

I’m using pretty much the same GPU as you (x1600). I’ve yet to have a
problem with a jitter shader (except for the rota shader which was
resolved). What shaders are giving you trouble? Post a patch. It’s
better than speculating.

wes


December 28, 2006 | 1:31 pm

does anyone have experience with the macbook 2.16ghz and 128 megs
vram vs. the 2.33 with 256mb? does the extra vram pay? i think i once
heard that macs with extra 256 mgs vram get even slower due to
addressing problems.

i work a lot with opengl, so i assume the 256mb makes really sense
for me…?

dominik

Am 29.11.2006 um 10:09 schrieb david vandenbogaerde:

> Hi i’ve got the Radeon x1400 graphics card, and it seems that some
> shaders don’t work properly from the tutorials. I thought this was
> due to my graphics card, but Wesley’s statement that "Any GPU made
> in the last 3-2 years will support shaders." assumes that there is
> no gradation in enabling shader functionality.
> … what i was wondering is exactly that: if shaders are *enabled*
> than all shaders should work?
> is that so? if not, how can one determine what a gpu will deliver?
>
> d
>
>
> On 11/28/06, Wesley Smith wrote:
> Definitely. That’s a nice one. Any GPU made in the last 3-2 years
> will support shaders.
>
> wes
>
> On 11/28/06, Gary Lee Nelson wrote:
> > I am working through the shader tutorials and wonder whether the
> X1600 GPU
> > in my Intel MacBook is one that supports programmable shaders.
> >
> > Cheers
> > Gary Lee Nelson
> > Oberlin College
> > http://www.timara.oberlin.edu/GaryLeeNelson
> >
> >
> >
>


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