Hello all,
I'm attempting to do some 3d targeting by screen position, and it would
be convenient to use unproject, however I can't figure out the
parameters. The OpenGL specs require various matrices to be passed in,
and Racket wants them of type gl-double-vector, which seems to be a type
synonym for cvector, but then when I get the matrices of that type with
glGetFloatv and pass it to unproject it complains it got a cvector
instead of a double-vector...
Does anybody know how to use unproject?
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