# OpenRS2 GL Natives ## Known bugs ### macOS performance OpenJDK's `nativeGetTopmostPlatformWindowUnderMouse` function is very slow on macOS. On lower-end hardware, such as a 2011 Mac Mini, the rendering loop completely freezes whenever the mouse moves. More information is available in the [JetBrains Runtime issuer tracker][macos-perf]. The performance is significantly better if the [JetBrains Runtime][jbr] is used instead of OpenJDK. ### macOS lighting quality The lighting quality is very poor on a Mac Mini with an integrated Intel HD Graphics 3000 card: some polygons are far too dark, and they tend to flicker between bright and dark as the camera angle changes, instead of transitioning smoothly. I'm not yet sure if this is a bug specific to macOS, the Intel HD Graphics 3000 drivers or the card itself. I don't believe it is the reimplemented bindings - the same problem happens with the original jaggl bindings and build 667 of the client. I also think it is unlikely to be the client, as the same client code works on Windows and Linux. ## Copyright Copyright (c) 2019 OpenRS2 Authors OpenRS2 GL Natives is free software: you can redistribute it and/or modify it under the terms of version 3.0 of the GNU Lesser General Public License as published by the Free Software Foundation. OpenRS2 GL Natives is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with OpenRS2 GL Natives. If not, see . [macos-perf]: https://youtrack.jetbrains.com/issue/JBR-444 [jbr]: https://confluence.jetbrains.com/display/JBR/JetBrains+Runtime