Coordinate conversion problems

Will openframeworks function can do the following function, thank you
Takes a three-dimensional X, Y, Z position and returns the X value for where it will appear on a (two-dimensional) screen.

try this:

http://openframeworks.cc/documentation/3d/ofCamera/#show_worldToScreen

Hi @SuperMoran,

Take a look at the worlToScreen function. It’ll return a ofVec3f that contain 2D screen’s position + the Z axis of the camera.