jMonkeyEngine.org

Hi,

When you export a scene in Blender using the Ogre3D exporter, there is an option ‘Force Camera’, which should export the active Blender camera.

If you check the .scene file that was generated (XML), you find :
node name=”cam1″ uuid=”…”
… some Node stuff …
… some Game stuff …
camera … … /camera
/node

Problem : I can only access the ‘node’ information…
Node cam1_n= (Node) scene.getChild(“cam1″);
I don’t know how to access the ‘camera’ info; that is : how do I read this XML info into the JME3 Camera object ?

Thanks !

Not much help but I setup camera from .scene with this code:

....
        scene = new Scene(app.getAssetManager().loadModel("Models/city/city.scene"));
        scene.SetSceneCamera(app.getCamera(), "Camera01");
....

    public void SetSceneCamera(Camera cam, String cameraName)
    {
        Node n = (Node) (((Node) scene).getChild(cameraName));
        if (n != null)
        {
            cam.setLocation(n.getWorldTranslation());
            cam.setRotation(new Quaternion(-n.getWorldRotation().getZ(), n.getWorldRotation().getW(), n.getWorldRotation().getX(), -n.getWorldRotation().getY()));  // hack?
        }
    }

This works when exporting scene with ogremax, but now tested with blender’s .scene exporter and cam.SetRotation is wrong, camera
looks at the wrong direction (but at least camera’s position is right).

Thanks for your replies, Larda !

If I understand your code correctly, then you basically take all information of the Blender camera from the export file, and manually adjust the JME3 camera to reflect the Blender settings.
I guess I may have to do it that way as well, but I usually have a whole bunch of Blender camera settings, such as : lens perspective/ortho, focal lenght, depth of field, distance, etc. So I was hoping for some JME3 ‘magic’.

Hello normen,

Thanks for your reply !
It is for a game… (I hope ). I was planning to use a fixed ratio + black borders.
My question was really a general question : is it useful to export the blender cam to jme3 ?
I guess my question has been answered by larda : you can export the blender cam, read its settings from the Ogre3D XML-file, and use these to set the jme3 cam…

Oh. I didn’t realize that was the only information that’s exported… Thanks for pointing that out !