AyadiMehdi

GLKVector3 GLKMathProject(GLKVector3 object, GLKMatrix4 model, GLKMatrix4 projection, int *viewport) {
    assert(viewport);
    
    GLKVector4 v4 = GLKVector4MakeWithVector3(object, 1.0);
    GLKVector4 v = GLKMatrix4MultiplyVector4(model, v4);
    v = GLKMatrix4MultiplyVector4(projection, v);
    
    v.v[3] = 1.0/v.v[3];
    v.v[0] *= v.v[3];
    v.v[1] *= v.v[3];