rem: this.drw = 0.0; 
add: this.drw = 0.0 
context:       function Obj(p, rx, ry, rz, rw) {        //graphical data:        //position vectors        this.p = (p)?p:new vec4.create();        //rotation vectors        this.rx = new vec4.create();        this.ry = new vec4.create();        this.rz = new vec4.create();        this.rw = new vec4.create();        this.rx[0] = 1.0;        this.ry[1] = 1.0;        this.rz[2] = 1.0;        this.rw[3] = 1.0;        //physical data        //position derivative        this.dp = new vec4.create();        //rotation derivative          /*  more complex than i need right now my friend ...          this.drx = new vec4();          this.dry = new vec4();          this.drz = new vec4();          this.drw = new vec4();          */        //better this relative-axis relative rotation angles for usage with math.rotateNormalized        this.drx = 0.0;        this.dry = 0.0;        this.drz = 0.0;        this.drw = 0.0;        this.geom = null;      };
meta: 5665	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/5665/0f8ba5d109269d49d72be1d776721a5a867dd729/NEngine.js/clean/lib/NEngine.js