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Old 10-10-03, 08:26 AM   #253
The Baron
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Quote:
Originally posted by SuLinUX
I'd just like to add that DM-Icetomb plays miles better in Linux and doesnot have the slowdown issue like in Windows.

Hope that sheds some light on the issue.
that's because the OpenGL renderer doesn't render every effect.
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Old 10-10-03, 08:42 AM   #254
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Quote:
Originally posted by The Baron
that's because the OpenGL renderer doesn't render every effect.
Like what and i'll took out for it, besides it's still slow in OpenGL in windows.
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Old 10-10-03, 09:45 AM   #255
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OpenGL does not render into textures as well a few other things. Ever notice why you have no more ammo counters on the guns that we had in UT
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Old 10-10-03, 10:13 AM   #256
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There is no rendering errors at all in Linux, OpenGL
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Old 10-10-03, 10:53 AM   #257
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Quote:
Originally posted by SuLinUX
There is no rendering errors at all in Linux, OpenGL
do you understand the words in this post?

it simply does not render the stuff--no rendering "errors" per se because it doesn't even try. jbirney has pointed this out on numerous occasions (he's the head coder for ChaosUT. you do the math.).
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Old 10-10-03, 11:46 AM   #258
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Quote:
Originally posted by The Baron
do you understand the words in this post?

it simply does not render the stuff--no rendering "errors" per se because it doesn't even try. jbirney has pointed this out on numerous occasions (he's the head coder for ChaosUT. you do the math.).
Speak engish, "it simply does not render the stuff"

what are you talking about, what is OpenGL in Linux(UT2003) not rendering?

I cannot be expected to read every thread on the board so please explain what the hell your talking about.
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Old 10-10-03, 12:23 PM   #259
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there are effects in the D3D version of UT2003 that are not in ANY OGL version, whether it's Windows, Mac, or Linux. jbirney has a list of those. that contributes to the higher performance under OGL compared to D3D.
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Old 10-10-03, 12:35 PM   #260
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SuLinUX,

I have no doubt its a bit faster under OpenGL. OpenGL has always been ahead of DX in its overhead for just the API itself. However Danail V from Epic has went out of his way to soup up the OpenGL part of the UT2k3 even though its not supported. However there are some things that that the openGl part will not do. One of them is scripted textures. Thats were the ammo Counters came in on the UT guns (I have assumed you have played UT). They work fine in D3D, no workie at all in OpenGL. We used them to draw the players name you just killed on a tombstone. UnrealSpeed uses them to draw you name on the car's license plate. And they can be used as moving scoreboard (like in UT Morphues level).
Then there is the render into texture that does not work at all in OpenGL that kills things like Cameras and drawing a mini-hud on top of your real hud (and I had such a cool use for that). They also handle Firetextures and Enviroment maps (the effect that makes the tops of water) differently. There is more at Epic's UDN but not sure if thats in the public section or not...

Thus trying compare scores from the OpenGL path to the DX path is like comparing apples to banannas. Yea they are both still fruit, but still much different....
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Old 10-10-03, 02:40 PM   #261
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Thanks for that, But would anyone care to explain why OpenGL/D3D in windows is very slow in DM-Icetomb but in Linux it's normal?
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Old 10-10-03, 06:30 PM   #262
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SuLinUX - troll? o_O
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Old 10-10-03, 06:34 PM   #263
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Quote:
Originally posted by Gaal Dornik
SuLinUX - troll? o_O
Huh, why?

Seems no one has a answer for it, DM-Icetomb plays very nice in Linux/OpenGL 1280x1024 thanks but in windows it plays like crap.
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Old 10-10-03, 06:40 PM   #264
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It has been answered twice already

In this particular situation, if i got it right,
OpenGL is fast because it simply does not paint the details causing problems. It's like you set "Details Level" on LOW.

Uhm no.Better to say - Under Linux it does not paint all the details it paints under Windows.

Last edited by Gaal Dornik; 10-10-03 at 06:43 PM.
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