{"action":"opened","issue":{"url":"https://api.github.com/repos/leezer3/OpenBVE/issues/31","repository_url":"https://api.github.com/repos/leezer3/OpenBVE","labels_url":"https://api.github.com/repos/leezer3/OpenBVE/issues/31/labels{/name}","comments_url":"https://api.github.com/repos/leezer3/OpenBVE/issues/31/comments","events_url":"https://api.github.com/repos/leezer3/OpenBVE/issues/31/events","html_url":"https://github.com/leezer3/OpenBVE/issues/31","id":137042165,"number":31,"title":"GL_INVALID_VALUE with anisotropic filter","user":{"login":"mgavioli","id":1420743,"avatar_url":"https://avatars.githubusercontent.com/u/1420743?v=3","gravatar_id":"","url":"https://api.github.com/users/mgavioli","html_url":"https://github.com/mgavioli","followers_url":"https://api.github.com/users/mgavioli/followers","following_url":"https://api.github.com/users/mgavioli/following{/other_user}","gists_url":"https://api.github.com/users/mgavioli/gists{/gist_id}","starred_url":"https://api.github.com/users/mgavioli/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/mgavioli/subscriptions","organizations_url":"https://api.github.com/users/mgavioli/orgs","repos_url":"https://api.github.com/users/mgavioli/repos","events_url":"https://api.github.com/users/mgavioli/events{/privacy}","received_events_url":"https://api.github.com/users/mgavioli/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2016-02-28T11:26:18Z","updated_at":"2016-02-28T11:26:18Z","closed_at":null,"body":"If I set filter to anisotropic in the options screen, I receive a `GL_INVALID_VALUE` exception as soon as the simulation starts (the first frame is shown, though). This happens with all the routes and all the trains I have tried (about 4/5 of each). All other filter settings work fine.\r\n\r\nOS: Linux Mint 17.3; graphic adapter: AMD/ATI Radeon HD 5770, driver xserver-xorg-video-ati version 1:7.3.0-1ubuntu3.1 (the latest and recommended driver for my distro).\r\n\r\nThis is the MonoDevelop debugger report:\r\n\r\n- System.InvalidOperationException: MainLoop: GL_INVALID_VALUE\r\n-   at OpenBve.MainLoop.CheckForOpenGlError (System.String Location) [0x000dc] in /home/mmg/Documents/projects/openBVE/leezer3/openBVE/OpenBve/OldCode/MainLoop.cs:485\r\n-   at OpenBve.OpenBVEGame.OnRenderFrame (OpenTK.FrameEventArgs e) [0x0021b] in /home/mmg/Documents/projects/openBVE/leezer3/openBVE/OpenBve/OldCode/NewCode/GameWindow.cs:143\r\n-   at OpenTK.GameWindow.OnRenderFrameInternal (OpenTK.FrameEventArgs e) [0x00010] in <filename unknown>:0\r\n-   at OpenTK.GameWindow.RaiseRenderFrame (Double elapsed, System.Double& timestamp) [0x0000c] in <filename unknown>:0\r\n-   at OpenTK.GameWindow.DispatchUpdateAndRenderFrame (System.Object sender, System.EventArgs e) [0x000d5] in <filename unknown>:0\r\n-   at OpenTK.GameWindow.Run (Double updates_per_second, Double frames_per_second) [0x000c6] in <filename unknown>:0\r\n-   at OpenTK.GameWindow.Run () [0x00000] in <filename unknown>:0\r\n-   at OpenBve.MainLoop.StartLoopEx (MainDialogResult result) [0x0021e] in /home/mmg/Documents/projects/openBVE/leezer3/openBVE/OpenBve/OldCode/MainLoop.cs:97\r\n-   at OpenBve.Program.Main (System.String[] args) [0x00605] in /home/mmg/Documents/projects/openBVE/leezer3/openBVE/OpenBve/System/Program.cs:230\r\n\r\nIf more data are needed, I assume I can provide them (with proper instructions?). Thanks!"}}