View Full Version : very SLOW accumulation buffer
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
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.
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.
07-26-2004, 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.
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.
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.
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