From https://github.com/Neverball/neverball/issues/170 The particles in the goal posts in Neverball 1.6.0 (from the Ubuntu archives) render as squares on my system. I have Intel HD 4000 graphics, Mesa 18.3.3, Linux 4.18.0-16-generic, and Ubuntu 18.04. Note that this also happens with llvmpipe and softpipe, so probably not an Intel-specific issue.
I've briefly tested, stars render OK on HSW but are displayed as rectangles on KBL.
Seems to work with llvmpipe on 19.0-rc7. (And with nouveau on multiple GPU generations.)
hi, I also checked on KBL and HSW. Don't see this issue (KBL was launched under X, mesa-git from master, for HSW I installed gnome and launched under wayland). GL renderer: Mesa DRI Intel(R) Haswell Mobile GL version: 3.0 Mesa 18.3.4 (From Fedora repository) GPU HD Graphics 4600 kernel 4.20.13-200.fc29.x86_64 [root@localhost mesa]# loginctl show-session 9 -p Type Type=wayland neverball was compiled from source. According to game header, it is also 1.6.0 version. Checked and LIBGL_ALWAYS_SOFTWARE, also works fine. Will check 18.3.3, mentioned by you
update - checked and 18.3.3 mesa version (built from git). Also works fine (HSW). HSW on X (mesa 18.3.4) also doesn't reproduce the issue
According to https://github.com/Neverball/neverball/issues/170#issuecomment-473301333 there seems to be some difference between the Debian/Ubuntu packaged Neverball and building it from source. Also, the code at https://github.com/Neverball/neverball does have changes from 1.6.0, so this may not be a fair comparison. I'll try to get an apitrace and post it here.
Created attachment 143684 [details] Neverball apitrace Here's an apitrace from my system with the Ubuntu 18.04, Mesa 18.3.3, and Neverball 1.6.0 from the repos.
yes, with your apitrace I see the issue
Interesting that provided apitrace reproduces issue on several my configurations. Checked: HSW (mesa git-master and 18.3.3) KBL (mesa 11.2.2, 18.3.4, git-master) also checked using Radeon GPU OpenGL renderer string: AMD OLAND (DRM 2.50.0, 4.20.6-042006-generic, LLVM 5.0.0) OpenGL version string: 2.1 Mesa 18.1.5 UPD: issue on apitrace is visible in X and in wayland, doesn't matter. ____________ second check, I clonned debian repo https://salsa.debian.org/games-team/neverball and tested master and 1.6.0-8 packages, on HSW and on KBL. In both cases game also works fine. ____________ third check: According to comment from https://github.com/Neverball/neverball/issues/170 >If ENABLE_HMD has been used, ... I searched for any commits, mentioned this flag, and found one. commit 0e8164fad29fce0081b8d29db946852574ff87d3 (HEAD) Author: Jānis Rūcis <parasti@gmail.com> Date: Fri Oct 25 20:48:18 2013 +0300 Define ENABLE_HMD macro with a value (The policy is such that the absence of ENABLE_SMTH and -DENABLE_SMTH=0 should both do the same thing.) Screenshot with issue, which was reproduced with this commit here: => https://drive.google.com/open?id=1928Qo6wGPenF-J68c8N67RPABlAzkto7 I bisected between master and this "bad" commit and found out that first time this issue appeared here Author: Robert Kooima <robert.kooima@gmail.com> 2014-03-18 19:51:06 Committer: Robert Kooima <robert.kooima@gmail.com> 2014-03-18 19:51:06 Parent: 9edce894a55a40167bf18d8a82fc7d85cc6c27dd (Tweaks to material effects) Child: c2eeda59bc8189a047c8496d3528574638dc3f12 (Replace goal and jump) Branches: master, remotes/origin/master Follows: neverball-1.5.4 Precedes: neverball-1.6.0 Add third light source to be used for sparkle effects _____________ So according to all my findings higher, I would say that this issue is something in the game, not in driver. And this issue can't be reproduced if I build game from master branches: https://github.com/Neverball/neverball https://salsa.debian.org/games-team/neverball Could it be compilator issue? I have gcc 8.3.1 on HSW and gcc 7.3.0 on KBL
Created attachment 143734 [details] apitrace from self-compiled Neverball 1.6.0 I seem to be unable to reproduce the issue using Neverball master or self-built 0.6.0 thus far. I wondered if this is not a GL issue, but a loading of assets issue, so I compiled as normal, then overwrote the generated binary with the one from the installed package. The squares showed up, so it's definitely linked to that specific binary somehow. It may be an issue with the package being compiled for older libraries, and having trouble with operating with the newer libraries, or alternatively, the compiler version may affect things. Attached is an apitrace with my self-built 1.6.0 for comparison. Maybe someone can compare the two and see what the difference is.
Turns out the the Debian package somehow doesn't install all the assets. Not a Mesa issue, closing. https://github.com/Neverball/neverball/issues/170#issuecomment-493550779
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