/*
 * Copyright (c) 2003-2004, jMonkeyEngine - Mojo Monkey Coding
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * Redistributions of source code must retain the above copyright notice, this
 * list of conditions and the following disclaimer.
 *
 * Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 *
 * Neither the name of the Mojo Monkey Coding, jME, jMonkey Engine, nor the
 * names of its contributors may be used to endorse or promote products derived
 * from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 *
 */

package jmetest.renderer;

import com.jme.app.SimpleGame;
import com.jme.bounding.BoundingBox;
import com.jme.image.Texture;
import com.jme.math.Quaternion;
import com.jme.math.Vector3f;
import com.jme.renderer.ColorRGBA;
import com.jme.renderer.TextureRenderer;
import com.jme.scene.shape.Quad;
import com.jme.scene.shape.Sphere;
import com.jme.scene.state.LightState;
import com.jme.scene.state.TextureState;
import com.jme.util.LoggingSystem;
import com.jme.util.TextureManager;

/**
 * <code>TestRTTSideBySide</code>
 * @author Mark Powell
 * @version $Id: TestRTTSideBySide.java,v 1.1 2005-09-11 00:40:51 Mojomonkey Exp $
 */
public class TestRTTSideBySide extends SimpleGame {

  private Quaternion rotQuat = new Quaternion();
  private float angle = 0;
  private Vector3f axis = new Vector3f(1, 1, 0);
  private Sphere s;
  private Quad q;
  private TextureRenderer tRenderer;
  private Texture fakeTex;

  /**
   * Entry point for the test,
   * @param args
   */
  public static void main(String[] args) {
    LoggingSystem.getLogger().setLevel(java.util.logging.Level.OFF);
    TestRTTSideBySide app = new TestRTTSideBySide();
    app.setDialogBehaviour(ALWAYS_SHOW_PROPS_DIALOG);
    app.start();
  }

  protected void simpleUpdate() {
      
      
    if (tpf < 1) {
      angle = angle + (tpf * 1);
      if (angle > 360) {
        angle = 0;
      }
    }
    rotQuat.fromAngleAxis(angle, axis);
    s.setLocalRotation(rotQuat);
  
  }
  
  protected void simpleRender() {
      tRenderer.render(s, fakeTex);
  }

  /**
   * builds the trimesh.
   * @see com.jme.app.SimpleGame#initGame()
   */
  protected void simpleInitGame() {
    display.setTitle("jME - RTT Side By Side");
    
    tRenderer = display.createTextureRenderer(display.getWidth(), display.getHeight(), false, true, false, false,
            TextureRenderer.RENDER_TEXTURE_2D,
            0);
    
    s = new Sphere("Sphere", 25, 25, 5);
    s.setLocalTranslation(new Vector3f(-10,0,0));
    s.setModelBound(new BoundingBox());
    s.updateModelBound();
    rootNode.attachChild(s);
    
    q = new Quad("Quad", 15, 13f);
    q.setLocalTranslation(new Vector3f(10,0,0));
    q.setModelBound(new BoundingBox());
    q.updateModelBound();
    q.setLightCombineMode(LightState.OFF);
    rootNode.attachChild(q);
    
    tRenderer.setBackgroundColor(new ColorRGBA(0f, 0f, 0f, 1f));
    fakeTex = tRenderer.setupTexture();
    TextureState screen = display.getRenderer().createTextureState();
    screen.setTexture(fakeTex);
    screen.setEnabled(true);
    
    tRenderer.getCamera().setLocation(new Vector3f(-10, 0, 15f));
    tRenderer.updateCamera();
    q.setRenderState(screen);

    TextureState ts = display.getRenderer().createTextureState();
    ts.setEnabled(true);
    ts.setTexture(
        TextureManager.loadTexture(
        TestBoxColor.class.getClassLoader().getResource(
        "jmetest/data/images/Monkey.jpg"),
        Texture.MM_LINEAR_LINEAR,
        Texture.FM_LINEAR));

    rootNode.setRenderState(ts);
  }
}

Test comparing the same sphere rendered naturally and rendered in as RTT