i tried it like this:
function rotateMatrix(object:Object3D, x:Number, y:Number):void{
var rot1:Matrix3D=new Matrix3D();
var rot2:Matrix3D=new Matrix3D();
rot1.appendRotation(-y, Vector3D.X_AXIS);
rot1.appendRotation(x, Vector3D.Y_AXIS);
rot1.append(rot2);
rot1.append(rot1);
object.transform = rot1;
}
It compiles now...but it doesnt behave like 2 matrixes. The object
rotates correct on the y axis but x is behaving strange...like not
"free"
On 24 Nov., 10:53, fab4ce <[email protected]> wrote:
> hmmm....that sounds good....besides the fact that i don´t know much
> about the matrix math.
> Sometimes you want to use pieces of code that you don´t understand at
> all.
> I do just ask because it is such a little function: Could you or
> someone else please translate it to 3.6 standard, line by line?
>
> On 23 Nov., 23:13, Michael Iv <[email protected]> wrote:
>
> > use matrix.append(anotherMatrix)-for multiplication
> > for setting rotation portion of the matrix I think you should first
> > decompose the matrix which returns a vector object containing 3 portions of
> > the matrix (If I remember correctly second index is rotational
> > portion,please refer to AS3 docs) and then you assign your values to that
> > part and recompose it back to you matrix.
>
> > On Tue, Nov 23, 2010 at 10:34 PM, fab4ce <[email protected]> wrote:
> > > how do write this in Away3D 3.6 ?
>
> > > function rotateMatrix(object:Object3D, x:Number, y:Number):void{
> > > var rot1:Matrix3D=new Matrix3D();
> > > var rot2:Matrix3D=new Matrix3D();
> > > rot1.rotationMatrix(0,1,0,x);
> > > rot2.rotationMatrix(1,0,0,y);
> > > rot1.multiply(rot1, rot2);
> > > rot1.multiply(rot1,object.transform);
> > > object.transform = rot1;
> > > }
>
> > --
> > Michael Ivanov ,Programmer
> > Neurotech Solutions Ltd.
> > Flex|Air
> > |3D|Unity|www.neurotechresearch.comhttp://blog.alladvanced.nethttp://www.meetup...
> > Tel:054-4962254
> > [email protected]
> > [email protected]
