Here's some hacky four-cube-example derived from HelloWorld. Maybe it helps to find out what you are doing wrong. Is there any chance that you have some child/parent relations defined between the cubes?
package com.threed.jpct.example;
import java.lang.reflect.Field;
import javax.microedition.khronos.egl.EGL10;
import javax.microedition.khronos.egl.EGLConfig;
import javax.microedition.khronos.egl.EGLDisplay;
import javax.microedition.khronos.opengles.GL10;
import android.app.Activity;
import android.opengl.GLSurfaceView;
import android.os.Bundle;
import android.view.MotionEvent;
import com.threed.jpct.Camera;
import com.threed.jpct.FrameBuffer;
import com.threed.jpct.Logger;
import com.threed.jpct.Object3D;
import com.threed.jpct.Primitives;
import com.threed.jpct.RGBColor;
import com.threed.jpct.Texture;
import com.threed.jpct.TextureManager;
import com.threed.jpct.World;
import com.threed.jpct.util.BitmapHelper;
import com.threed.jpct.util.MemoryHelper;
/**
* @author EgonOlsen
*
*/
public class HelloWorld extends Activity {
private static HelloWorld master = null;
private GLSurfaceView mGLView;
private MyRenderer renderer = null;
private FrameBuffer fb = null;
private World world = null;
private RGBColor back = new RGBColor(50, 50, 100);
private float touchTurn = 0;
private float touchTurnUp = 0;
private float xpos = -1;
private float ypos = -1;
private Object3D cube0 = null;
private Object3D cube1 = null;
private Object3D cube2 = null;
private Object3D cube3 = null;
private Object3D dummy = null;
private int fps = 0;
protected void onCreate(Bundle savedInstanceState) {
Logger.log("onCreate");
if (master != null) {
copy(master);
}
super.onCreate(savedInstanceState);
mGLView = new GLSurfaceView(getApplication());
mGLView.setEGLConfigChooser(new GLSurfaceView.EGLConfigChooser() {
public EGLConfig chooseConfig(EGL10 egl, EGLDisplay display) {
int[] attributes = new int[] { EGL10.EGL_DEPTH_SIZE, 16, EGL10.EGL_NONE };
EGLConfig[] configs = new EGLConfig[1];
int[] result = new int[1];
egl.eglChooseConfig(display, attributes, configs, 1, result);
return configs[0];
}
});
renderer = new MyRenderer();
mGLView.setRenderer(renderer);
setContentView(mGLView);
}
@Override
protected void onPause() {
super.onPause();
mGLView.onPause();
}
@Override
protected void onResume() {
super.onResume();
mGLView.onResume();
}
protected void onStop() {
super.onStop();
}
private void copy(Object src) {
try {
Logger.log("Copying data from master Activity!");
Field[] fs = src.getClass().getDeclaredFields();
for (Field f : fs) {
f.setAccessible(true);
f.set(this, f.get(src));
}
} catch (Exception e) {
throw new RuntimeException(e);
}
}
public boolean onTouchEvent(MotionEvent me) {
if (me.getAction() == MotionEvent.ACTION_DOWN) {
xpos = me.getX();
ypos = me.getY();
return true;
}
if (me.getAction() == MotionEvent.ACTION_UP) {
xpos = -1;
ypos = -1;
touchTurn = 0;
touchTurnUp = 0;
return true;
}
if (me.getAction() == MotionEvent.ACTION_MOVE) {
float xd = me.getX() - xpos;
float yd = me.getY() - ypos;
xpos = me.getX();
ypos = me.getY();
touchTurn = xd / -100f;
touchTurnUp = yd / -100f;
return true;
}
try {
Thread.sleep(15);
} catch (Exception e) {
// No need for this...
}
return super.onTouchEvent(me);
}
protected boolean isFullscreenOpaque() {
return true;
}
class MyRenderer implements GLSurfaceView.Renderer {
private long time = System.currentTimeMillis();
private boolean stop = false;
public MyRenderer() {
}
public void stop() {
stop = true;
}
public void onSurfaceChanged(GL10 gl, int w, int h) {
if (fb != null) {
fb.dispose();
}
fb = new FrameBuffer(gl, w, h);
if (master == null) {
world = new World();
world.setAmbientLight(0, 0, 0);
Texture texture = new Texture(BitmapHelper.rescale(BitmapHelper.convert(getResources().getDrawable(R.drawable.icon)), 64, 64));
TextureManager.getInstance().addTexture("texture", texture);
dummy=Object3D.createDummyObj();
cube0 = Primitives.getCube(10);
cube0.rotateY(-(float) Math.PI / 4f);
cube0.rotateMesh();
cube0.clearRotation();
cube0.calcTextureWrapSpherical();
cube0.setTexture("texture");
cube0.strip();
cube0.build();
cube1 = cube0.cloneObject();
cube2 = cube0.cloneObject();
cube3 = cube0.cloneObject();
world.addObject(cube0);
world.addObject(cube1);
world.addObject(cube2);
world.addObject(cube3);
cube0.translate(-20, -20, 0);
cube1.translate(20, -20, 0);
cube2.translate(-20, 20, 0);
cube3.translate(20, 20, 0);
cube0.setAdditionalColor(RGBColor.WHITE);
cube1.setAdditionalColor(RGBColor.BLUE);
cube2.setAdditionalColor(RGBColor.GREEN);
cube3.setAdditionalColor(RGBColor.RED);
cube0.addParent(dummy);
cube1.addParent(dummy);
cube2.addParent(dummy);
cube3.addParent(dummy);
Camera cam = world.getCamera();
cam.moveCamera(Camera.CAMERA_MOVEOUT, 100);
MemoryHelper.compact();
if (master == null) {
Logger.log("Saving master Activity!");
master = HelloWorld.this;
}
}
}
public void onSurfaceCreated(GL10 gl, EGLConfig config) {
}
public void onDrawFrame(GL10 gl) {
try {
if (!stop) {
if (touchTurn != 0) {
dummy.rotateY(touchTurn);
touchTurn = 0;
}
if (touchTurnUp != 0) {
dummy.rotateX(touchTurnUp);
touchTurnUp = 0;
}
fb.clear(back);
world.renderScene(fb);
world.draw(fb);
fb.display();
if (System.currentTimeMillis() - time >= 1000) {
Logger.log(fps + "fps");
fps = 0;
time = System.currentTimeMillis();
}
fps++;
} else {
if (fb != null) {
fb.dispose();
fb = null;
}
}
} catch (Exception e) {
Logger.log(e, Logger.MESSAGE);
}
}
}
}