{"action":"created","issue":{"url":"https://api.github.com/repos/SebKuzminsky/pycam/issues/134","repository_url":"https://api.github.com/repos/SebKuzminsky/pycam","labels_url":"https://api.github.com/repos/SebKuzminsky/pycam/issues/134/labels{/name}","comments_url":"https://api.github.com/repos/SebKuzminsky/pycam/issues/134/comments","events_url":"https://api.github.com/repos/SebKuzminsky/pycam/issues/134/events","html_url":"https://github.com/SebKuzminsky/pycam/issues/134","id":391502861,"node_id":"MDU6SXNzdWUzOTE1MDI4NjE=","number":134,"title":"OpenGL visualization requires legacy features (before 3.0)","user":{"login":"sumpfralle","id":1474141,"node_id":"MDQ6VXNlcjE0NzQxNDE=","avatar_url":"https://avatars0.githubusercontent.com/u/1474141?v=4","gravatar_id":"","url":"https://api.github.com/users/sumpfralle","html_url":"https://github.com/sumpfralle","followers_url":"https://api.github.com/users/sumpfralle/followers","following_url":"https://api.github.com/users/sumpfralle/following{/other_user}","gists_url":"https://api.github.com/users/sumpfralle/gists{/gist_id}","starred_url":"https://api.github.com/users/sumpfralle/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/sumpfralle/subscriptions","organizations_url":"https://api.github.com/users/sumpfralle/orgs","repos_url":"https://api.github.com/users/sumpfralle/repos","events_url":"https://api.github.com/users/sumpfralle/events{/privacy}","received_events_url":"https://api.github.com/users/sumpfralle/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":0,"created_at":"2018-12-16T20:40:27Z","updated_at":"2018-12-16T21:03:43Z","closed_at":null,"author_association":"COLLABORATOR","body":"Sadly pycam currently uses many [OpenGL legacy](https://www.khronos.org/opengl/wiki/Legacy_OpenGL) functions (removed from the 3.0 specification).\r\n\r\nThus modern graphic cards fail to work with with `invalid operation` errors at various places in the code (usually at least for `glMatrixMode`).\r\n\r\nThis breaks the 3D visualization for many (and soon: most) systems."},"comment":{"url":"https://api.github.com/repos/SebKuzminsky/pycam/issues/comments/447675619","html_url":"https://github.com/SebKuzminsky/pycam/issues/134#issuecomment-447675619","issue_url":"https://api.github.com/repos/SebKuzminsky/pycam/issues/134","id":447675619,"node_id":"MDEyOklzc3VlQ29tbWVudDQ0NzY3NTYxOQ==","user":{"login":"sumpfralle","id":1474141,"node_id":"MDQ6VXNlcjE0NzQxNDE=","avatar_url":"https://avatars0.githubusercontent.com/u/1474141?v=4","gravatar_id":"","url":"https://api.github.com/users/sumpfralle","html_url":"https://github.com/sumpfralle","followers_url":"https://api.github.com/users/sumpfralle/followers","following_url":"https://api.github.com/users/sumpfralle/following{/other_user}","gists_url":"https://api.github.com/users/sumpfralle/gists{/gist_id}","starred_url":"https://api.github.com/users/sumpfralle/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/sumpfralle/subscriptions","organizations_url":"https://api.github.com/users/sumpfralle/orgs","repos_url":"https://api.github.com/users/sumpfralle/repos","events_url":"https://api.github.com/users/sumpfralle/events{/privacy}","received_events_url":"https://api.github.com/users/sumpfralle/received_events","type":"User","site_admin":false},"created_at":"2018-12-16T21:03:43Z","updated_at":"2018-12-16T21:03:43Z","author_association":"COLLABORATOR","body":"The migration of the legacy functions to the new API seems to be non-trivial.\r\n\r\nPersonally I have no interest in gaining OpenGL-related knowledge. Thus the OpenGL visualization will need to be removed, unless someone contributes this migration.\r\n\r\nI researched possible alternatives (high-level 3D visualization toolkits or 3D exchange formats). For now I am favoring an export to X3D (see #135)."}}
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