I am using Java3D (A java extension by oracle) to make 3d stuff (obviously) and I am trying to spin a 3D object but I keep on getting this error:
Exception in thread "GameThread" javax.media.j3d.CapabilityNotSetException: Group: no capability to set transform
at javax.media.j3d.TransformGroup.setTransform(TransformGroup.java:115)
at Main.Second.render(Second.java:98)
at Main.Second.access$0(Second.java:95)
at Main.Second$1.run(Second.java:80)
at java.base/java.lang.Thread.run(Thread.java:832)
this is the class where the error is pointed out:
package Main;
import javax.media.j3d.BranchGroup;
import javax.media.j3d.Shape3D;
import javax.media.j3d.Transform3D;
import javax.media.j3d.TransformGroup;
import javax.swing.JPanel;
import javax.vecmath.AxisAngle4f;
import javax.vecmath.Color3f;
import javax.vecmath.Vector3f;
import com.sun.j3d.utils.universe.SimpleUniverse;
import Actions.LightBulb;
import Actions.Rotate;
import Actions.Wrap;
import Main.Shapes.Square;
public class Second extends JPanel{
float Size = 1f;
boolean running = false;
int frames = 0;
float Spinner;
Transform3D Transform = new Transform3D();
TransformGroup tg = new TransformGroup();
private static final long serialVersionUID = 1L;
public Second() {
Shape3D sq = new Square().Make(Size);
new Wrap(sq, new Color3f(1f,1f,1f));
//Uni
SimpleUniverse universe = new SimpleUniverse();
//Group
BranchGroup Group = new BranchGroup();
//Trans3D
Transform.setTranslation(new Vector3f(-Size/2f,-Size/2f,-Size/2f));
//TransG
tg.setTransform(Transform);
tg.addChild(sq);
new Rotate(Transform);
Group.addChild(tg);
//Lighting
new LightBulb(Group, new Color3f(1f,1f,1f), 1f);
//Finals
universe.getViewingPlatform().setNominalViewingTransform();
universe.addBranchGraph(Group);
new Thread(new Runnable() {
@Override
public void run(){
running = true;
long lastTime = System.nanoTime();
final double amountOfTicks = 20.0;
double ns = 1000000000 / amountOfTicks;
double delta = 0;
int updates = 0;
long timer = System.currentTimeMillis();
while(running){
long now = System.nanoTime();
delta += (now - lastTime) / ns;
lastTime = now;
if(delta >= 1){
tick();
updates++;
delta--;
}
render();
frames++;
if(System.currentTimeMillis() - timer > 1000){
timer += 1000;
System.out.println(updates + " Ticks, Fps " + frames);
updates = 0;
frames = 0;
}
}
}
}, "GameThread").start();
}
private void render() {
Spinner++;
Transform.setRotation(new AxisAngle4f(0f,0.5f,0f,Spinner));
tg.setTransform(Transform);
}
public void tick(){
}
}
if you couldn't see I'm using a separate thread for my game loop and the game loop itself is what is causing the error :)
Thanks in advance!
