The grafic-driver of Gpl-3 software gCAD3D (github.com/gcad3d) is based on OpenGL-displaylists. For Wayland this should be changed to VBO/VAO based OpenGL-driver. Is there already a library (C-language) for CAD ? Who can help to find or create a CAD-driver ? CAD needs: - display surfaces (n triangles (points + indexes)(color+transparency)|texture) - display polygon (n points + color thickness + typ (solid-dash-dashDot)) - display symbols ((point|star|triangle|rectangle|arrow) small or big, color) - display Text (2D (billboard) or 3D (position, orientation, size)) - define positon,orientation of viewpoint - redraw all objects from new viewpoint - delete objects - combine n objects to group and set positon,orientation (instancing) - get names of object(s) under cursor (selection,picking) - nice-to-have: tesselation of surfaces (boundary + support-surface)
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