View Full Version : very SLOW accumulation buffer

07-23-2004, 01:18 AM
An example of jittering using accumulation buffer [from OpenGL PG (3rd ed.)] running very slow (8 frames per ~3 sec.). Is accum. buffer is so slow? Can I speed it up?

P.S. I'm using Linux, GeForce 2 MX with newest drivers

07-23-2004, 06:28 AM
The Geforce2MX doesnt support the accumulation buffer in hardware, so its emulated in software.

You need at least a Nvidia NV3X or ATI R3XX for that.

07-23-2004, 08:18 AM
But, what nVIDIA video cards support this architecture?

07-23-2004, 10:26 AM
RTFP he said NV3X so that is the Geforce FX cards.

07-25-2004, 11:04 PM
Thanx for help

07-26-2004, 10:11 PM
Most implementation of accumulation buffers in gaming graphics cards drivers are rather slow. I guess its a feature dedicated to professional type graphic cards.

07-28-2004, 01:03 AM
I want GeForce FX 5200. Is it Ok?

07-28-2004, 06:59 AM
The FX series are gaming cards. I don't know if nvidia's quattro line supports it in hardware, but ATI's Fire GL cards do.

Good luck


07-28-2004, 07:22 AM
As I already wrote the NV3X++ and ATI 3XX++ support it.

I just checked it with a FX5900 running the latest Forceware drivers on a W2K box (I am not sure if the Linux drivers support it yet, though).

I would not touch a FX5200 with a ten feet pole, yes they have the features but the card is so fooking slow that you DONT want to use ANY of them.

Try to get a FX5700 or something alike.