Adding new objects at runtime

Question

hi, i'm wondering if i could have everything all set up(canvas3d,simpleuniverse,etc.) and i wanted to add to add a transformgroup to the BranchGroup, would everything update to show the new transformgroup?
adn is a simepleuniverse like a virtualuniverse?

Answer 1

i see on Canvas3d there's an update() meathod, do i use that?No, please don`t.
The scengraph will update if you set the capability
BranchGroup.ALLOW_CHILDREN_EXTEND
before you add a new object
You should update a scengraph from a Behavior. Please see
You should read the javadoc for Behavior
When the Java 3D behavior scheduler invokes a Behavior object's processStimulus method, that method may perform any computation it wishes. Usually, it will change its internal state and specify its new wakeup conditions. Most probably, it will manipulate scene graph elements. However, the behavior code can only change those aspects of a scene graph element permitted by the capabilities associated with that scene graph element. A scene graph's capabilities restrict behavioral manipulation to those manipulations explicitly allowed.
The application must provide the Behavior object with references to those scene graph elements that the Behavior object will manipulate. The application provides those references as arguments to the behavior's constructor when it creates the Behavior object. Alternatively, the Behavior object itself can obtain access to the relevant scene graph elements either when Java 3D invokes its initialize method or each time Java 3D invokes its processStimulus method.
Behavior methods have a very rigid structure. Java 3D assumes that they always run to completion (if needed, they can spawn threads). Each method's basic structure consists of the following:
* Code to decode and extract references from the WakeupCondition enumeration that caused the object's awakening.
* Code to perform the manipulations associated with the WakeupCondition
* Code to establish this behavior's new WakeupCondition
* A path to Exit (so that execution returns to the Java 3D behavior scheduler)
regards