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slow dx9

Started by cyber-ghost Oct 19, 2003 at 1:55 PM 4 replies 400+ views

Original Post

Oct 19, 2003 at 1:55 PM

HI i know i am late at stateing this but i just upgraded to dx9 from 8.1 and my runing demo which was getting 260 fps with 8.1 at 1024*768 16 bit got 40 fps with 9 all i changed was the add arguments for the functions, and i know its not my code. i checked the DX diagnostics and i have the use retail build set i know some of you had this problem when it came out but i cant search the post because i get an admin error. i would appreciate any help

gregs

Oct 19, 2003 at 2:08 PM

Is it using direct draw in any way (I doubt it if its converted from 8.1, but anyway), as DX9 drivers tend to emulate rather than accelerate Direct Draw calls

DrunkenHyena

Oct 19, 2003 at 3:56 PM

Make sure your presentation interval is set to IMMEDIATE rather than DEFAULT.

Stay Casual,

Ken
Drunken Hyena

cyber-ghost

Author

cyber-ghost

Oct 19, 2003 at 4:09 PM

HI again i found the problem Thanks for the reply
was the presentation value in window mode.i think i need some sleep

AJirenius

Oct 20, 2003 at 8:37 AM

.

Andreas Jirénius
Lead Graphic Artist, Factor 2
Audio Designer
[img]http://upl.mine.nu/uplfolders/upload9/fac22.jpg[/img]

[edited by - AJirenius on October 20, 2003 9:42:03 AM]

cyber-ghost

Author

cyber-ghost

Oct 21, 2003 at 9:20 AM

Hello once again i have another speed problem this time regarding
x files optimization in dx8 i used the draw subset method which
i planed to remove later when i moved to 9 for Tri-strips. loading the knot.x mesh in dx8 got 180 fps 1024 32-bit and in 9 got 30 fps same config. both useing the optimizeInplace function
dx9 documention show only an added argument to the function.
i am thinging changes to dx9 goes deeper than i think but the doc
dont say enough to help. funny thing the demo sample gets 80 fps
@1024 useing DrawSubset i did not expect a spead increase in dx9
but give me a break i would be thankful for any feedback.

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