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Ray picking using FloatUtil makePick

Posted by ericg on Nov 08, 2014; 3:50am
URL: https://forum.jogamp.org/Ray-picking-using-FloatUtil-makePick-tp4033515.html

Hello,  I am trying to implement ray picking in my application (using GL4 and GLSL4) and I was wondering if the makePick function on FloatUtil would be useful for this?  Previously I have used gluUnProject to create the pick vector and that worked great.  Now, however, I no longer have access to GL_MODELVIEW_MATRIX or GL_PROJECTION_MATRIX as none of those concepts were retained I think as of 3.x?

Anyway, would makePick be worth looking at?  Are there examples of its implementation out there anywhere?