rootNode and camera view

Troubleshooting General Help
1

Hi,

I am making a robot arm simulator and I need to split my window so I can show just the claw part of my robotic arm zoomed. I already followed some of the tutorials and created a new viewport, but the problem is that this arm piece is attached to other arm pieces, so when I attach my cameraNode to my the 3rd piece of my arm, it takes the main pivot point of it as reference.

My robot parts are attached like this:

nodePivot.attachChild(nodeBelts);
nodeBelts.attachChild(nodeBody);
nodeBody.attachChild(nodeArm1);
nodeArm1.attachChild(nodeArm2);
nodeArm2.attachChild(nodeArm3);
rootNode.attachChild(nodePivot);

and then Im attaching a cameraNode to the 3rd arm like this:

camNodeUpview = new CameraNode("CamNodeUpview", camUpview);
camNodeUpview.setControlDir(CameraControl.ControlDirection.SpatialToCamera);
nodeArm3.attachChild(camNodeUpview);
camNodeUpview.setLocalTranslation(new Vector3f(0, 10, 0));
camNodeUpview.lookAt(nodeArm3.getLocalTranslation(), Vector3f.UNIT_Y);

Here is how my camera is set up:

forum.png2044×1546 309 KB

Here is where I would like to centralize my camera:

forum2.png2043×1540 308 KB

Please helppppp!!!

2

It’s hard to say without knowing what’s nodeArm3 on the picture.
Why don’t you attach the cam node to the blue thingy at the tip of the arm?

3

ah, sorry.
The arm3 is the blue thingy at the tip of the arm. The problem is that when I attach the cam node to it, it takes the nodePivot as reference because the arm3 is attached to it

4

Alright. Why don’t you just try to offset the camNode position and the lookat so that it aims at the correct direction?