I need to give glvertex values to [jit.gl.sketch] from pwindow's mouse message, accurately as "left-top-right-bottom" values (see jit.lcd)

My matrix is 320/240 size, but glvertex think different!

I had a look at screentoworld in another topic, but can't figure out how to use it for such a goal.

mouse-2-sketch

i do something like this, but may not work for everyone.

when math doesn't like you, trial and error is your friend.

i do something like this, but may not work for everyone.
when math doesn't like you, trial and error is your friend.

jit.gl.render can tell you where your pixel is at:

send the mouseposition as screentoworld to the render and it gives you 

jit.gl.render can tell you where your pixel is at:
send the mouseposition as screentoworld to the render and it gives you  
OpenGL coords.

Do you think you could post a patch for Max 4.6/1.6.3 ?

Thank you Jasch.
Do you think you could post a patch for Max 4.6/1.6.3 ?

mouse 2 sketch