Why ArrowHelper extending Helper and not mesh?

[denisT]

you can’t draw a solid mesh in a helper plugin. it’s a limitation.

I already anticipate your possible question: - But how to render mesh solid?

look at simpleManipulator and its addGizmoMesh method

[gtafan]

I already anticipate your possible question: - But how to render mesh solid?

look at simpleManipulator and its addGizmoMesh method

You mean this here?
If yes, unfortunatelly I don´t understand how it can help me to create a solide red arrow helper plugin, which has nothing to say since I have really bad knowledge in maxscript.

[gtafan]

I could live with a wire mesh helper, but unfortunately it´s imposible then for 2D mesh to see where its front and back side is.