Michael Withstand Posted September 28, 2007 Share Posted September 28, 2007 I have 8600GT and CMSF crawls on Allah fist and the overall fps is not great. However with the same machine I can run Medieval 2 or SteelBeast Pro astonishingly at relatively high performance. And today I found out why. I decided to give my old time favorite game IL-2 Forgotten Battle a try after reading a book on the topic. Then I realise that there's a stark difference between using OpenGL or DirectX setting to play the game. Forgotten Battle allows the player to choose between OpenGL or DirectX rendering. As you may have figured out by now with DirectX my fps in game shoot up really fast to even the ranges of 100s sometimes. But with OpenGL I have the same performance with my old 9600XT back then with 512 DDR1 RAM. The fps was as low as 25s on the ground. Compared to using DirectX this is very low as with DirectX the fps would go as far as 60s. So my guess is that the newer Nvidia graphics card that is the 8xxx series is really not meant to play games based on OpenGL. Now that this is revealed the only solution to increase the fps CONSIDERABLY is to switch to DirectX instead of OpenGL..which is unlikely considering that CMSF is a finished product. 0 Quote Link to comment Share on other sites More sharing options...
Michael Withstand Posted September 28, 2007 Author Share Posted September 28, 2007 Do I smell Bill? 0 Quote Link to comment Share on other sites More sharing options...
mazex Posted September 28, 2007 Share Posted September 28, 2007 Running Vista? OpenGL support in Vista is crap. In XP, IL2 runs better in OpenGL than in DIrectX with my 8800GTX at least. I'm running at 100+ fps at maximum settings all the time so in that game OpenGL wirks fine in XP at least. Nevertheless, the terrain engine in CM:SF seems to be the problem just as you say. Check out my thread here where I try out a completely empty map with 1600x1600 meters of dirt with lousy fps (11)... /Mazex 0 Quote Link to comment Share on other sites More sharing options...
peleprodigy Posted September 28, 2007 Share Posted September 28, 2007 Yeah, I run Opengl games just as well as direct x with my 8800. all games except CMSF that is. 0 Quote Link to comment Share on other sites More sharing options...
Dirtweasle Posted September 28, 2007 Share Posted September 28, 2007 Maybe- maybe not. DOOM3 engine based games are OpenGL and I run the heck out of them... I mean maxed out and I get super FPS rates. The games are kind of stupid, but run like crazy. Could be that the way IL2 makes some sort of draw, render, shortcut, hardware call or somefink like that is the same as CMSF and that is the problem. 0 Quote Link to comment Share on other sites More sharing options...
Michael Withstand Posted September 29, 2007 Author Share Posted September 29, 2007 I just double checked. I can confirm that with 8600GT the OpenGL performance of FB sucks. It goes as low as 15s on the ground while the planes are taxiing for take off. with DirectX the same scene can go as high as 60s or more. At least now I know that 8600GT is utterly sucks at OpenGL. 0 Quote Link to comment Share on other sites More sharing options...
Michael Withstand Posted September 29, 2007 Author Share Posted September 29, 2007 And oh yea I'm running XP Pro 0 Quote Link to comment Share on other sites More sharing options...
peleprodigy Posted September 29, 2007 Share Posted September 29, 2007 8800 is great on opengl. doom3,quake wars, even an older FPS called star trek elite force, all run like champs, beautiful and fast. xp home here 0 Quote Link to comment Share on other sites More sharing options...
Sekra Posted September 29, 2007 Share Posted September 29, 2007 this is quite interesting.. I may have to dig up my IL2 out from somewhere and see how it runs on my current rig.. 0 Quote Link to comment Share on other sites More sharing options...
Madmatt Posted October 1, 2007 Share Posted October 1, 2007 All of you guys with those nice cards, please have a go with CMSF and the v1.04 patch and you should see some big improvements. Madmatt 0 Quote Link to comment Share on other sites More sharing options...
Dirtweasle Posted October 1, 2007 Share Posted October 1, 2007 Yep, very good speeds now. What was done? 0 Quote Link to comment Share on other sites More sharing options...
Madmatt Posted October 1, 2007 Share Posted October 1, 2007 Charles apparently was able to indentify various issues with the ATI and nVidia drivers and how they did various OpenGL tasks and made tweaks to his code to squeeze out increased performance. Madmatt 0 Quote Link to comment Share on other sites More sharing options...
Dirtweasle Posted October 1, 2007 Share Posted October 1, 2007 Great, sure plays faster. I hate to say it though but the fonts appear a bit muddled in game. If you move up close to the text it improves but at a distance they get "fuzzy". Also notice a lot more contrast, maybe too much, but a different look for sure. 0 Quote Link to comment Share on other sites More sharing options...
Madmatt Posted October 1, 2007 Share Posted October 1, 2007 Originally posted by Dirtweasle: Great, sure plays faster. I hate to say it though but the fonts appear a bit muddled in game. If you move up close to the text it improves but at a distance they get "fuzzy". Also notice a lot more contrast, maybe too much, but a different look for sure. Try and adjust your anistropic filtering levels in your drivers. Those usually affect font sharpening the most. Madmatt 0 Quote Link to comment Share on other sites More sharing options...
Trooper5 Posted October 1, 2007 Share Posted October 1, 2007 Originally posted by Dirtweasle: Great, sure plays faster. I hate to say it though but the fonts appear a bit muddled in game. If you move up close to the text it improves but at a distance they get "fuzzy". Also notice a lot more contrast, maybe too much, but a different look for sure. Interesting. I find everything to look the same as it was, very clear, perfect in fact. The only difference being a huge increase in performance. 0 Quote Link to comment Share on other sites More sharing options...
Dirtweasle Posted October 2, 2007 Share Posted October 2, 2007 Originally posted by Madmatt: Try and adjust your anistropic filtering levels in your drivers. Those usually affect font sharpening the most. Madmatt Tured off AA and AS and there is no improvement to fonts, and the whole game looks worse. ...but an intro thing played! :eek: 0 Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.