ThirdPersonController problems

Troubleshooting General Help
1

I was hoping to have just a blank blue background with a sphere and be able to have the ThirdPersonController control the sphere. All I get is a white screen. Insight, please :slight_smile:



import com.jme.app.BaseGame;
import com.jme.bounding.BoundingBox;
import com.jme.bounding.BoundingSphere;
import com.jme.image.Texture;
import com.jme.input.ChaseCamera;
import com.jme.input.InputSystem;
import com.jme.input.KeyBindingManager;
import com.jme.input.KeyInput;
import com.jme.input.thirdperson.ThirdPersonMouseLook;
import com.jme.math.FastMath;
import com.jme.math.Vector3f;
import com.jme.renderer.Camera;
import com.jme.renderer.ColorRGBA;
import com.jme.scene.Node;
import com.jme.scene.shape.Sphere;
import com.jme.scene.state.CullState;
import com.jme.scene.state.FogState;
import com.jme.scene.state.TextureState;
import com.jme.system.DisplaySystem;
import com.jme.system.JmeException;
import com.jme.util.TextureManager;
import com.jme.util.Timer;


/*
 * Fyrestone Game Client
 * Version: 0.0.0000
 */
import java.util.HashMap;

public class GameClient extends BaseGame
{
    /*Video Configuration*/
    int width, height, depth, freq;
    boolean fullscreen;
    /*End Video Configuration*/
   
    /*Scene Graph Variables*/
    Node scene;
    Sphere player;
    FogState fog;
    CullState cull;
    ChaseCamera playercam;
    Camera cam;
    /*End Scene Graph Variables*/
   
    /*System Information Variables*/
    Timer timer;
    /*End System Information Variables*/
   
    public static void main(String args[])
    {
        GameClient app = new GameClient();
        app.setDialogBehaviour(FIRSTRUN_OR_NOCONFIGFILE_SHOW_PROPS_DIALOG);
        app.start();
    }
    @Override
    protected void update(float interpolation)
    {
        interpolation = timer.getTimePerFrame();
        timer.update();
        playercam.update(interpolation);
        keyHandle();
    }

    @Override
    protected void render(float interpolation)
    {
        display.getRenderer().clearBuffers();
        display.getRenderer().draw(scene);
    }

    @Override
    protected void initSystem()
    {
        width = properties.getWidth();
        height = properties.getHeight();
        depth = properties.getDepth();
        freq = properties.getFreq();
        fullscreen = properties.getFullscreen();
        initializeGraphics();
       
        display.setTitle("Fyrestone Game Client");
       
        display.getRenderer().setBackgroundColor(ColorRGBA.blue);
        timer = Timer.getTimer();
       
        cull = display.getRenderer().createCullState();
        cull.setCullMode(cull.CS_BACK);
        cull.setEnabled(true);
       

        fog = display.getRenderer().createFogState();
        fog.setStart(5.0f);
        fog.setEnd(1000f);
        fog.setDensity(1.2f);
        fog.setColor(ColorRGBA.lightGray);
        fog.setEnabled(true);
       
//        scene.setRenderState(fog);
//        scene.setRenderState(cull);
    }

    @Override
    protected void initGame()
    {
        scene = new Node("SceneGraph");
        createPlayer();
        createCamera();
        scene.updateGeometricState(0f, true);
        scene.updateRenderState();
    }

    @Override
    protected void reinit()
    {
        display.recreateWindow(width, height, depth, freq, fullscreen);
    }

    @Override
    protected void cleanup()
    {
        System.out.println("Nothing to clean");
    }
   
    protected void initializeGraphics()
    {
        try
        {
            display = DisplaySystem.getDisplaySystem(properties.getRenderer());
            display.createWindow(width, height, depth, freq, fullscreen);
        }
        catch(JmeException e)
        {
            System.out.println("Graphics card error.");
            e.printStackTrace();
            System.exit(1);
        }
    }
   
    protected void createCamera()
    {
        cam = display.getRenderer().createCamera(width, height);
        cam.setFrustumPerspective(45.0f, (float)width/(float)height, 1, 5000);
        cam.update();
        display.getRenderer().setCamera(cam);
       
        Vector3f offset = new Vector3f();
        offset.y = ((BoundingBox) player.getWorldBound()).yExtent * 1.5f;
        playercam = new ChaseCamera(cam, player);
        playercam.setMaxDistance(8);
        playercam.setMinDistance(2);
    }
   
    protected void createPlayer()
    {
        player = new Sphere("Player", 5, 5, 15);
        player.setLocalTranslation(new Vector3f(0,0,0));
        player.setModelBound(new BoundingBox());
        player.updateModelBound();
        scene.attachChild(player);
        player.updateWorldBound();
    }
   
    protected void createEarth()
    {
        //not yet implemented.
    }

    private void keyHandle()
    {
        if(KeyBindingManager.getKeyBindingManager().isValidCommand("exit"))
            finished = true;
    }
   
}

2

i think you miss some lightstate with a attached light

3
Core-Dump said:

i think you miss some lightstate with a attached light


This may give you more insight--I C&P'd a code from jmetest/terrain/TerrainTest.java (I think, I'm not at my dev computer at the moment) and when it generates the image I'm standing in an octagonal tube of terrain, unable to move.
4

Its best to compare with BaseSimpleGame and see whats different.

I got something rendered after setting the camera frame in the initSystem method.



            Vector3f loc = new Vector3f( 0.0f, 0.0f, 25.0f );
            Vector3f left = new Vector3f( -1.0f, 0.0f, 0.0f );
            Vector3f up = new Vector3f( 0.0f, 1.0f, 0.0f );
            Vector3f dir = new Vector3f( 0.0f, 0f, -1.0f );
            /** Move our camera to a correct place and orientation. */
            cam.setFrame( loc, left, up, dir );

5

Do those variables (loc, left, up, dir) correspond to how much the camera can see, or it's position within the world?

6

it sets the orientation and location like the java doc says :slight_smile: