Still struggling with generating geometries in GL... I'm now rendering geometry matrices with jit.gl.render (as decribed here 

https://cycling74.com/docs/max5/tutorials/jit-tut/jitterappendixb.html

). Works basicly but the edge flag plane doesn't seem to have any effect regardless of what drawing primitive is selected. Is this correct? If so, why is it there at all?

The same question was asked back in 2005 but no answer was given: 

https://cycling74.com/forums/index.php?t=msg&goto=44366&rid=0&srch=edge+flag#msg_44366

Still struggling with generating geometries in GL... I'm now rendering geometry matrices with jit.gl.render (as decribed here https://cycling74.com/docs/max5/tutorials/jit-tut/jitterappendixb.html). Works basicly but the edge flag plane doesn't seem to have any effect regardless of what drawing primitive is selected. Is this correct? If so, why is it there at all?

The same question was asked back in 2005 but no answer was given: https://cycling74.com/forums/index.php?t=msg&goto=44366&rid=0&srch=edge+flag#msg_44366

gl-edge-flag

you should look at jit.gl.sketch, that object seems to be pretty powerful.

I played with the edge flag a bit, and it works fine, but its only for poly_mode 1 1 or line based meshes, then it toggles on and off the line for that edge with a 1 or 0

GL edge flag?