Donut Posted November 13, 2018 Posted November 13, 2018 (edited) I have been messing around to try and get the best performance in DCS and noticed a possible bug with anti-aliasing. With SSAA 1.5 or MSAA 2x, I get almost exactly the same FPS but I feel that SSAA looks better. No problems here. My FPS was roughly the following for each one: Sitting on the runway at Nellis in the Hornet Looking forward: FPS 103 Looking left: FPS 68 The possible anti-aliasing bug that I noticed was that when I turned off all anti-aliasing, my FPS stayed the exact same. I was expecting a significant increase in FPS with anti-aliasing turned off but that was not the case. I restarted DCS, checked/unchecked full screen, tried LALT+ENTER and got the same results. Anyone else getting similar performance and if so, does this seem right? Edited November 14, 2018 by =BJM= i5 7600K @4.8GHz | 1080 Ti | 32GB 3200MHz | SSD | DCS SETTINGS | "COCKPIT"
petsild Posted November 13, 2018 Posted November 13, 2018 This is a bad property of the DCS, in every direction you have a different fps. When you turn on AA it gets worse, it depends on the complexity and the number of units in the mission. MSI PRO Z690-A DDR4, Kingston 3600 MHz 64 Gb, i5 12600K, Gigabyte RTX 4090, Samsung SSD 970 EVO Plus,VKB NXT Premium.
Donut Posted November 13, 2018 Author Posted November 13, 2018 This is a bad property of the DCS, in every direction you have a different fps. When you turn on AA it gets worse, it depends on the complexity and the number of units in the mission. I can understand that. I would expect the drop in FPS as I look to more detailed areas. In my brief test above, I saw the FPS drop as I looked left towards the hangars. My concern is that turning off anti-aliasing all together does not increase FPS. i5 7600K @4.8GHz | 1080 Ti | 32GB 3200MHz | SSD | DCS SETTINGS | "COCKPIT"
Svsmokey Posted November 14, 2018 Posted November 14, 2018 I can understand that. I would expect the drop in FPS as I look to more detailed areas. In my brief test above, I saw the FPS drop as I looked left towards the hangars. My concern is that turning off anti-aliasing all together does not increase FPS. Did you reboot DCS between tests ? 9700k @ stock , Aorus Pro Z390 wifi , 32gb 3200 mhz CL16 , 1tb EVO 970 , MSI RX 6800XT Gaming X TRIO , Seasonic Prime 850w Gold , Coolermaster H500m , Noctua NH-D15S , CH Pro throttle and T50CM2/WarBrD base on Foxxmounts , CH pedals , Reverb G2v2
Donut Posted November 14, 2018 Author Posted November 14, 2018 (edited) Did you reboot DCS between tests ? Yes, every time I changed a setting I exited DCS and restarted. SSAA 1.5 MSAA 2x Both Off I get the same FPS with both off that I do with either one of them on. Edited November 14, 2018 by =BJM= i5 7600K @4.8GHz | 1080 Ti | 32GB 3200MHz | SSD | DCS SETTINGS | "COCKPIT"
Svsmokey Posted November 14, 2018 Posted November 14, 2018 (edited) That's really strange . I just ran a similar series of tests after a gpu upgrade , and every change was reflected in fps . This on stable . I should add that my tests were run in-flight over the Caucasus . Edited November 14, 2018 by Svsmokey 9700k @ stock , Aorus Pro Z390 wifi , 32gb 3200 mhz CL16 , 1tb EVO 970 , MSI RX 6800XT Gaming X TRIO , Seasonic Prime 850w Gold , Coolermaster H500m , Noctua NH-D15S , CH Pro throttle and T50CM2/WarBrD base on Foxxmounts , CH pedals , Reverb G2v2
Donut Posted November 14, 2018 Author Posted November 14, 2018 (edited) Okay everyone. Quick update here. I don't think this is a bug. I did some further testing just now and what is happening is that I have several static aircraft on the ramp at Nellis. When I take them away, I noticed the FPS increase when anti-aliasing is off compared to on. It is only when the static aircraft are present that I don't see the difference in FPS between anti-aliasing on/off. Lesson learned though...static aircraft are a huge hit on FPS Edited November 18, 2018 by =BJM= i5 7600K @4.8GHz | 1080 Ti | 32GB 3200MHz | SSD | DCS SETTINGS | "COCKPIT"
Svsmokey Posted November 14, 2018 Posted November 14, 2018 Okay everyone. Quick update here. I don't think this is a bug. I did some further testing just now and what is happening is that I have several static aircraft on the ramp at Nellis. When I take them away, I noticed the FPS increase when anti-aliasing is off compared to on. It is only when the static aircraft are present that I don't not see the difference in FPS between anti-aliasing on/off. Lesson learned though...static aircraft are a huge hit on FPS They certainly are ! Kholki has a bunch of statics , and the frame rate is in the basement . Sure is pretty , though , and i don't mind low frames while taxiing . 9700k @ stock , Aorus Pro Z390 wifi , 32gb 3200 mhz CL16 , 1tb EVO 970 , MSI RX 6800XT Gaming X TRIO , Seasonic Prime 850w Gold , Coolermaster H500m , Noctua NH-D15S , CH Pro throttle and T50CM2/WarBrD base on Foxxmounts , CH pedals , Reverb G2v2
toutenglisse Posted November 21, 2018 Posted November 21, 2018 Okay everyone. Quick update here. I don't think this is a bug. I did some further testing just now and what is happening is that I have several static aircraft on the ramp at Nellis. When I take them away, I noticed the FPS increase when anti-aliasing is off compared to on. It is only when the static aircraft are present that I don't see the difference in FPS between anti-aliasing on/off. Lesson learned though...static aircraft are a huge hit on FPS Static aircrafts (hornet lot 20 !!) are not really a hudge "hit on fps" but are a real issue/bug. I mean when you put some, what you see is fps AND cpu/gpu usage going down to half the normal numbers. It creates a limitation issue, but nothing to do with ressources (gpu/cpu). So I consider it a bug and not a fps hit.
Donut Posted November 21, 2018 Author Posted November 21, 2018 Static aircrafts (hornet lot 20 !!) are not really a hudge "hit on fps" but are a real issue/bug. I mean when you put some, what you see is fps AND cpu/gpu usage going down to half the normal numbers. It creates a limitation issue, but nothing to do with ressources (gpu/cpu). So I consider it a bug and not a fps hit. I agree, it is a bug or at least due the Hornet not being optimized. I just did a little test and changed all my static Hornets to A-10's and the FPS drop was much less. So, to sum this whole thread up, the strange FPS behavior had nothing to do with anti-aliasing, at least not directly, but was caused by the Hornet statics. I look at a Hornet and my FPS drops significantly. i5 7600K @4.8GHz | 1080 Ti | 32GB 3200MHz | SSD | DCS SETTINGS | "COCKPIT"
OttoPus Posted November 21, 2018 Posted November 21, 2018 Yes Hornet statics ( and not only statics, even the player controlled ones in multi ) make FPS drop hard.
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