At some point you are supposed to use a 3D drawing program like Blender or Maya, have it generate a ‘.obj’ file that contains all the vertex and coloring information. People publish some open source ‘.obj’s of familiar characters. That was ultimately my goal: Could I get J to read in a ‘.obj’ and render in the underlying openGL?
3dmag.org <http://3dmag.org/> has a free super Mario file located here: http://3dmag.org/en/market/item/4240/ <http://3dmag.org/en/market/item/4240/> I’ve searched but there does not seem to be an openGL library call to render this automatically. The best I have come up with are some C or C++ programs to render various parts of the file. Now that I understand openGL and how to use it J I may try to tackle this in the near future. I do want to thank everybody responding to this thread. You have saved me loads of spare time I would have wasted if I was toiling away on my own. Tom McGuire > On Feb 29, 2020, at 6:23 PM, Brian Schott <[email protected]> wrote: > > Very nice, Tom. > > I removed 1,"1~ > from colorData1=: 1&fc ,1,"1~_3]\3#"2] 0&". ;._2 [ 0 : 0 > and got 1-color tetrahedral faces. > > In a_g_paint changing glClearColor 0 0 0 0 to glClearColor 0 0 0 1 > produce black background for the window. > > I'm anxious to figure out more, like how to put static eyes on the turtles; > moving eyes would be even better. > Is that a texture thing? I've never used textures or fragment shaders. > > > > > -- > (B=) > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
