Fragment shading with ATI FireGL 9000 (IBM T40p)

Korben · Apr 16, 2005, 05:07 PM

I have to program a vertex/framgent shader, using an IBM T40p (Graphics card: Ati Mobility FireGL 9000). I'm actually using the last IBM drivers (6.14.10.6512). It works for Vertex shader (GL_ARB_Vertex_program) but not for fragment (GL_ARB_Fragment_program).
I also tried the last Omegadrivers, without success. There is then neiter Vertex nor Fragment program support (You can have this information using the tolls glinfo, e.g (http://www.delphi3d.net/hardware/glinfo2.zip)).
What should I do? This chip should support both (vertex AND fragment shader).
Thanks
Best regards

griswoold · Apr 16, 2005, 05:29 PM

Use ati_fragment_shader extension for fragment shading. You need at least a x300 or r9600 mobility chip for support of arb_fragment_program

Korben · Apr 16, 2005, 05:37 PM

But the problem is that I have to implement an algorithm which can works for all graphics card and I don't want to have a different code, if I use an ATI or a NVIDIA card.
GL_ARB_Vertex_program exists. Why not GL_ARB_Fragment_program?
Thanks

griswoold · Apr 16, 2005, 05:44 PM

Quote:

Originally Posted by Korben

But the problem is that I have to implement an algorithm which can works for all graphics card and I don't want to have a different code, if I use an ATI or a NVIDIA card.
GL_ARB_Vertex_program exists. Why not GL_ARB_Fragment_program?
Thanks

Because the mobility 9000 can't support arb_fragment_program. It's a hardware limitation.

An alternative would be direct3d. With direct3d you could use pixelshader1.1 for all vendors and only need 1 codepath. In opengl there is no way around vendor specific codepath for hardware which don't support at least pixelshader2.0

Korben · Apr 16, 2005, 06:06 PM

Quote:

Originally Posted by griswoold

Because the mobility 9000 can't support arb_fragment_program. It's a hardware limitation.

Even with a FireGL?
Because i saw that: http://mailman.daimi.au.dk/pipermail...ch/000523.html
And it seem that this guy have fragment_program with a ATI Mobility FIRE GL 9000???

griswoold · Apr 16, 2005, 06:21 PM

Quote:

Originally Posted by Korben

Even with a FireGL?
Because i saw that: http://mailman.daimi.au.dk/pipermail...ch/000523.html
And it seem that this guy have fragment_program with a ATI Mobility FIRE GL 9000???

He actually got it wrong. If you look at opengl renderer string it says " Mobility FIREGL T2" which is based on the r9600 mobility. So he actually has a FIREGL T2 not a FIREGL 9000

Apr 16, 2005, 05:07 PM	#1
Korben DriverHeaven Newbie Join Date: Apr 2005 Posts: 4 Rep Power: 0	Fragment shading with ATI FireGL 9000 (IBM T40p) I have to program a vertex/framgent shader, using an IBM T40p (Graphics card: Ati Mobility FireGL 9000). I'm actually using the last IBM drivers (6.14.10.6512). It works for Vertex shader (GL_ARB_Vertex_program) but not for fragment (GL_ARB_Fragment_program). I also tried the last Omegadrivers, without success. There is then neiter Vertex nor Fragment program support (You can have this information using the tolls glinfo, e.g (http://www.delphi3d.net/hardware/glinfo2.zip)). What should I do? This chip should support both (vertex AND fragment shader). Thanks Best regards

Apr 16, 2005, 05:29 PM	#2
griswoold mr. vögi Join Date: Apr 2003 Posts: 161 Rep Power: 0	Use ati_fragment_shader extension for fragment shading. You need at least a x300 or r9600 mobility chip for support of arb_fragment_program __________________ Glad to hear it because somebody has to blow that sucker up! Last edited by griswoold; Apr 16, 2005 at 05:36 PM.

Apr 16, 2005, 05:37 PM	Thread Starter #3
Korben DriverHeaven Newbie Join Date: Apr 2005 Posts: 4 Rep Power: 0	But the problem is that I have to implement an algorithm which can works for all graphics card and I don't want to have a different code, if I use an ATI or a NVIDIA card. GL_ARB_Vertex_program exists. Why not GL_ARB_Fragment_program? Thanks