text: #pragma once
  
  #include "ofMain.h"
  #include "ofxCv.h"
  
  ofVec3f ofWorldToScreen(ofVec3f world);
  ofVec3f ofScreenToWorld(ofVec3f screen);
  ofMesh getProjectedMesh(const ofMesh& mesh);
  cv::Point2f getClosestPoint(const vector<cv::Point2f>& vertices, float x, float y, int* choice = NULL, float* distance = NULL);
  ofVec3f getClosestPointOnMesh(const ofMesh& mesh, float x, float y, int* choice = NULL, float* distance = NULL);
  