Editing Vertices in a Mesh/Sphere

beginners
#1 
#include "ofApp.h"

//--------------------------------------------------------------
void ofApp::setup(){
    ofSetWindowTitle( "Wireframe Sphere" );
    ofSetWindowShape(1280, 720);
    ofSetFrameRate(60);
    sphere.set(250,20);
    vertices0 = sphere.getMesh().getVertices();
}

//--------------------------------------------------------------
void ofApp::update(){

}

//--------------------------------------------------------------
void ofApp::draw(){
    float deformFreq = 120;
    float deform = 10;
    float rad = 5;
    
    ofMesh &vertices = sphere.getMesh();
    for(int i = 0; i > vertices.getNumVertices(); i++) {
        glm::vec3 v = vertices0[i];
        v = glm::normalize(v);
        float sx = sin(v.x * deformFreq);
        float sy = sin(v.y * deformFreq);
        float sz = sin(v.z * deformFreq);
        v.x += sy * sz * deform;
        v.y += sx * sz * deform;
        v.z += sx * sy * deform;
        v *= float(rad);
        vertices.setVertex(i,v);
    }
    draw3d();
}

//--------------------------------------------------------------
void ofApp::draw3d(){
    material.begin();
    ofEnableDepthTest();
    
    float time = ofGetElapsedTimef();
    float longitude = 10*time;
    float latitude = 10*sin(time*0.8);
    float radius = 600+50*sin(time*0.4);
    // cam.orbitDeg(longitude, latitude, radius, ofPoint(0,0,0) );
    cam.begin();
    light.setPosition(0, 0, 600);
    light.enable();
    ofSetColor(ofColor::white);
    sphere.draw();
    cam.end();
    
    ofDisableDepthTest();
    material.end();
    light.disable();
    ofDisableLighting();
}

if i run this code in an actual Version of openFrameWorks, i still see an unmodified sphere. Can Anyone help please? How to properly edit the Vertex of a sphere?

#2

You want that to be i < vertices.getNumVertices()

#3

typo… damn. thx.

#4

Happens to everyone I can assure you!