ATI slow down not completely solved?

Usagi · Post by **Usagi** » Fri Jul 16, 2004 9:47 am

With the newer CVS versions that include the ATI fix I still experience a gradual slow down (Radeon 9700, Catalyst 4.6, WinXP). It is far better than before because usability is okay. But it is clearly noticable and a little bit annoying:

After about half an hour or so (I can't say exactly) the display is not as smooth as right after the start of Blender (less frames per second). When I quit and restart Blender it is smooth again (more frames per second). It is especially noticable when rotating the viewport with a fairly complex model.

Has anyone else experienced this issue?

Matthe · Post by **Matthe** » Fri Jul 16, 2004 4:28 pm

I experienced another issue:

With my Radeon 9600Pro I've got a massive slowdown (not really workable) when I'm using a background image. I've tried different drivers: ATI, Omega from 3.9 to 4.6, but they all have the same problem.

Mats78 · Post by **Mats78** » Fri Jul 16, 2004 4:59 pm

With my Radeon 9600Pro I've got a massive slowdown (not really workable) when I'm using a background image. I've tried different drivers: ATI, Omega from 3.9 to 4.6, but they all have the same problem.

Same thing on nVidia cards, at least my GF2 - and I've heard similar stories elsewhere too. Has something to do with nVidia 2D capabilities (not too great, as it turns out), maybe it's the same with ATI?

Cheers,
Mats

Usagi · Post by **Usagi** » Fri Jul 16, 2004 5:27 pm

Matthe wrote:I experienced another issue:

With my Radeon 9600Pro I've got a massive slowdown (not really workable) when I'm using a background image. I've tried different drivers: ATI, Omega from 3.9 to 4.6, but they all have the same problem.

Same here too.

alien-xmp · Post by **alien-xmp** » Sat Jul 17, 2004 3:43 am

I can't test at the moment, but I found one of the latest catalysts had quite a big 2d performance improvement.

It was wxp-w2k-catalyst-8-02-040515a-015958c.exe, but there is a newer version out now.

lucky3 · Post by **lucky3** » Sat Jul 17, 2004 7:03 pm

i've got a weird slowdown problem especially with the 'Hard' slider in the Material Buttons. ATI radeon 9200, WinXp

Matthe · Post by **Matthe** » Mon Jul 19, 2004 12:33 pm

Another problem just occurred: From one day to the other without any changes on system or Blender (it's really true), it's not possible to use the fullscreen anymore. The whole redraw process seemed to be corrupted. About a month ago the same happened and than all the sudden it dissapeared and now this strange behaviour is back. Any suggestions?

System:
AMD Athlon XP 1800
WinXP Pro with SP1
Radeon 9600 pro, Omegadrivers 2.5.51

Usagi · Post by **Usagi** » Mon Jul 19, 2004 5:20 pm

alien-xmp wrote:I can't test at the moment, but I found one of the latest catalysts had quite a big 2d performance improvement.

It was wxp-w2k-catalyst-8-02-040515a-015958c.exe, but there is a newer version out now.

I used this one (it's Catalyst 4.6). Last weekend I upgraded to the current Catalyst 4.7 but the described issue still exists.

Matthe · Post by **Matthe** » Tue Jul 20, 2004 2:50 pm

Matthe wrote:I experienced another issue:

With my Radeon 9600Pro I've got a massive slowdown (not really workable) when I'm using a background image. I've tried different drivers: ATI, Omega from 3.9 to 4.6, but they all have the same problem.

Just noticed:
This problem is influenced by the scaling(and/or zoom level) of the bg-image. Bigger image/zoomlevel -> slower response

Matthe · Post by **Matthe** » Tue Jul 20, 2004 9:07 pm

Finally I found a way to get rid of the described problems:)

Today I installed the latest Omegadrivers. With the "special/old"-opengl.dll for old games, Blender works much better. So I recommend the following procedure:

1. install the Omega drivers with "standart/new"opengl
2. copy the .dll from ...\Radeon Omega Drivers v2.5.58\2KXP_INF\OGL-Old in the Blender folder

Now I can use blender (latest CVS build) in fullscreen and the background-image is useable again

good luck,

matthe

EDIT: forgot the link:( http://www.omegadrivers.net/

konrad_ha · Post by **konrad_ha** » Wed Jul 21, 2004 12:20 am

Are there plans to slove this issue for good? With a different build of Blender I got it all working for now, but sooner or later this should be addressed directly.