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  • #1

    Darkplaces: Blinking artifacts

    Hi All! I have a problem with blinking artifacts on textures in Darkplaces engine. Something can seen on the screenshot. The "r_shadow_realtime_world_compile 0" command reduces the artifacts, but not fully removes them. The "r_shadow_deferred 1" and "r_shadow_shadowmapping 0" are fully removes artifacts, but makes the shadows looks bad. So my problem is that my GTX770 with latest drivers have a trouble with drawing the soft shadows in Darkplaces in Windows 8.1. Be very grateful on any ideas...
    Here the screenshot http://www.ripe-exe.com/dp20150526221509-00.png
    Tags: None
  • #2
    this is a known bug which is related to nvidia drivers, not to darkplaces.
    every nvidia driver version after 320.49 has either glitchy shadows or messed-up textures on MD3 models

    .

    the only way to fix this is the revert to the old 320.49 drivers from nvidia.
    but you wont be able to play some of the latest games anymore which require newer drivers.

    or.... you can stick with your current drivers and hope that upcoming drivers from nvidia fix the bug

    .

    those who have a 900 series gpu though are screwed though, cuz the 320.49 drivers dont support the 900 series cards
    and thus they are forced to use newer nvidia drivers which have rendering bugs in DP
    Last edited by talisa; 05-26-2015, 04:56 PM.
    .
    are you curious about what all there is out there in terms of HD content for quake?
    > then make sure to check out my 'definitive' HD replacement content thread! <
    everything that is out there for quake and both mission-packs, compiled into one massive thread

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    • #3
      Yeah that's a bug with darkplaces and only darkplaces that will never be fixed. I live it as well, but its the price you pay if want to use dp in all its shadowy glory.

      Comment

      • #4
        Talisa, much thanks for advanced and comprehensive answer, which finished my quest to resolve the problem. All the best to you!

        Comment

        • #5
          Hmmm, I also use Darkplaces with nvidia drivers >320.49 on my win7-64bit computer and never saw texture issues like these.
          It is maybe related to a cvar setting or replacement content problem.
          Yes, I have read about this topic a few times in this forum but could never reproduce it.
          Is it always at the same position (like in your screenshot) or randomly ?
          ... maybe I am just lucky.

          Comment

          • #6
            Originally posted by Seven View Post
            Hmmm, I also use Darkplaces with nvidia drivers >320.49 on my win7-64bit computer and never saw texture issues like these.
            It is maybe related to a cvar setting or replacement content problem.
            Yes, I have read about this topic a few times in this forum but could never reproduce it.
            Is it always at the same position (like in your screenshot) or randomly ?
            ... maybe I am just lucky.
            possibly resolution related?

            I know that is one variable that could be different, I'm just guessing because I have Radeon.
            Want to get into playing Quake again? Click here for the Multiplayer-Startup kit! laissez bon temps rouler!

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            • #7
              Hard for me to tell but is the skybox texture being reflected there?

              My Gforce GTX285 w driver 337 seems to not show this problem, I see a stone gray texture using the QRP texture packs over here. Not sure if other hires texture packs would possibly effect this.

              That object is the top of the door which like plats are BSP models, so not sure if a bug that hits md3 models like Talisa stated, would apply to them.

              BSP model items like health have their own light "baked" into them, but this door is what they call an "inline model", as its built into the map BSP, so Im not sure how it would get its light properties.
              Last edited by Cobalt; 05-27-2015, 11:03 PM.

              Comment

              • #8
                Originally posted by Seven View Post
                Is it always at the same position (like in your screenshot) or randomly ?
                Only in some fixed positions, not randomly. In some positions "r_shadow_realtime_world_compile 0" removes the artifacts, in others only reduce them.

                Originally posted by Cobalt View Post
                Hard for me to tell but is the skybox texture being reflected there?
                No, it's rapidly blinking noise on texture. Impossible to show on screenshot, can be shown on video only.

                And one more moment present - if I reduce the anisotropic filtering to 1 then artifacts fades. Setting of AF quality and optimization in NVidia control panel makes no effect.

                P.S.
                sorry I started this thread here, I've seen the "DarkPlaces questions" topic after only
                Last edited by Rivarez; 05-28-2015, 02:10 AM.

                Comment

                • #9
                  Oh ok, its like noise / artifacting , yea I have seen that before on some of the ammo pickups which are BSP models. It seemed to me it was angle dependent when I was examining it.

                  Its been a while since I have seen it occur again, so Im not sure whats stopped it. Are you running the latest Version of DP?

                  Also Im curious if this happens when you use a custom .lit file. Try putting e1m2.lit in the maps folder , from here:

                  Index of /ports/games/quake-extras/work/lits

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                  • #10
                    ive done some investigating by creating a new setup and one by one adding items like RT-lights, VISed maps and HD textures untill i found what causes it.
                    and none of them seemed to be causing the problem, so i looked at settings i enabled, mainly offsetmapping setting.

                    and it would seem that enabling offsetmapping is what causes the artifacts.
                    enable offsetmapping, artifacts appear in shadows. disable offsetmapping, artifacts are gone
                    Last edited by talisa; 05-28-2015, 10:03 AM.
                    .
                    are you curious about what all there is out there in terms of HD content for quake?
                    > then make sure to check out my 'definitive' HD replacement content thread! <
                    everything that is out there for quake and both mission-packs, compiled into one massive thread

                    Comment

                    • #11
                      Originally posted by Cobalt View Post
                      Oh ok, its like noise / artifacting , yea I have seen that before on some of the ammo pickups which are BSP models. It seemed to me it was angle dependent when I was examining it.
                      Yes, it's depend on player position includes the view angle. This http://www.ripe-exe.com/dp20150529073510-00.png screen shows the bug better than previous shot. And this artifact can be fully removed by "r_shadow_realtime_world_compile 0" command.

                      Originally posted by Cobalt View Post
                      Are you running the latest Version of DP?
                      Yes

                      Originally posted by Cobalt View Post
                      Try putting e1m2.lit in the maps folder , from here:
                      Does not makes effect

                      Originally posted by talisa View Post
                      and it would seem that enabling offsetmapping is what causes the artifacts. enable offsetmapping, artifacts appear in shadows. disable offsetmapping, artifacts are gone
                      yes, you're right, a "r_glsl_offsetmapping=1" command removes the artifacts, but it turn off the parallax mapping and textures are looking flat

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                      • #12
                        Not sure, does this mean the lit file has no effect, and the problem remains? Or does it mean the artifacting is gone?

                        Originally posted by Rivarez View Post


                        Does not makes effect
                        (

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                        • #13
                          Originally posted by Cobalt View Post
                          Not sure, does this mean the lit file has no effect, and the problem remains?
                          yes, the problem remains

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                          • #14
                            Exactly, it looks so much better with parallax mapping that's why I just deal with the few artifacts I see.

                            Originally posted by Rivarez View Post
                            yes, you're right, a "r_glsl_offsetmapping=1" command removes the artifacts, but it turn off the parallax mapping and textures are looking flat

                            Comment

                            • #15
                              Originally posted by xaGe View Post
                              Exactly, it looks so much better with parallax mapping that's why I just deal with the few artifacts I see.
                              totally, the game looks a million times fancier with reliefmapping enabled!

                              so i also decided to just deal with the few artifacts, as without latest drivers you cant play the latest games
                              Last edited by talisa; 05-30-2015, 08:23 AM.
                              .
                              are you curious about what all there is out there in terms of HD content for quake?
                              > then make sure to check out my 'definitive' HD replacement content thread! <
                              everything that is out there for quake and both mission-packs, compiled into one massive thread

                              Comment

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