Cloth

• Description
• Example
• Instructions
• Code

Cloth is a modifier that displaces object vertices giving the effects of wind and gravity.

1. Import stack, modifier, 3D render engine library

   import com.as3dmod.ModifierStack;
   import com.as3dmod.modifiers.Cloth;
   import com.as3dmod.plugins.pv3d.LibraryPv3d;

2. Declare stack

   private var stack :ModifierStack;

3. Declare modifier

   private var modifier :Cloth;

4. Initialize stack

   stack = new ModifierStack(lib3d, mesh);

   Parameter	Default	Description
   lib3d	NONE	3D engine library
   mesh	NONE	3D object

5. Initialize modifier

   modifier = new Cloth(rigidity, friction);

   Parameter	Default	Description
   rigidity	1	stretchy to rigid (0-1) cloth
   friction	0	air friction

6. Add modifier to stack

   stack.addModifier(modifier);

7. Set force, lock axis

   modifier.setForce(0.2, -0.2, -0.2);
   modifier.lockXMin();

8. Apply

   stack.apply();

package
{
    import com.as3dmod.ModifierStack;
    import com.as3dmod.modifiers.Cloth;
    import com.as3dmod.plugins.pv3d.LibraryPv3d;

    import flash.events.Event;

    import org.papervision3d.materials.WireframeMaterial;
    import org.papervision3d.objects.primitives.Plane;
    import org.papervision3d.view.BasicView;

    public class AS3DmodCloth extends BasicView
    {
        private var object   :Plane;
        private var stack    :ModifierStack;
        private var modifier :Cloth;

        public function AS3DmodCloth()
        {
            super();

            var material :WireframeMaterial = new WireframeMaterial(0x000000);
            material.doubleSided = true;

            object = new Plane(material, 500, 500, 10, 10);
            scene.addChild(object);

            stack = new ModifierStack(new LibraryPv3d(), object);

            modifier = new Cloth();
            stack.addModifier(modifier);

            modifier.setForce(0.2, -0.2, -0.2);
            modifier.lockXMin();

            startRendering();
        }

        protected override function onRenderTick(e:Event=null):void
        {
            stack.apply();

            super.onRenderTick(e);
        }
    }
}

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