+ a test app - only tested on desktop with Lwjglexperimental
David Bernard
10 years ago
parent
3ef5505faa
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37da17e3eb
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/* |
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* Copyright (c) 2009-2012 jMonkeyEngine |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions are |
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* met: |
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* |
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* * Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* |
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* * Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* |
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* * Neither the name of 'jMonkeyEngine' nor the names of its contributors |
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* may be used to endorse or promote products derived from this software |
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* without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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package jme3test.renderer; |
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import com.jme3.app.SimpleApplication; |
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import com.jme3.material.Material; |
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import com.jme3.material.RenderState.StencilOperation; |
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import com.jme3.material.RenderState.TestFunction; |
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import com.jme3.math.ColorRGBA; |
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import com.jme3.math.FastMath; |
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import com.jme3.math.Quaternion; |
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import com.jme3.math.Vector3f; |
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import com.jme3.post.SceneProcessor; |
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import com.jme3.renderer.Camera; |
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import com.jme3.renderer.RenderManager; |
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import com.jme3.renderer.ViewPort; |
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import com.jme3.renderer.queue.RenderQueue; |
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import com.jme3.scene.Geometry; |
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import com.jme3.scene.control.AbstractControl; |
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import com.jme3.scene.shape.Box; |
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import com.jme3.system.AppSettings; |
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import com.jme3.system.JmeContext.Type; |
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import com.jme3.texture.FrameBuffer; |
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import com.jme3.texture.Image.Format; |
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import com.jme3.texture.Texture2D; |
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import com.jme3.util.BufferUtils; |
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import com.jme3.util.Screenshots; |
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import java.awt.Color; |
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import java.awt.Dimension; |
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import java.awt.Graphics; |
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import java.awt.Graphics2D; |
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import java.awt.event.KeyEvent; |
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import java.awt.event.KeyListener; |
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import java.awt.event.WindowAdapter; |
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import java.awt.event.WindowEvent; |
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import java.awt.image.BufferedImage; |
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import java.nio.ByteBuffer; |
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import javax.swing.JFrame; |
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import javax.swing.JPanel; |
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import javax.swing.SwingUtilities; |
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/** |
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* This test renders a scene to an offscreen framebuffer, then copies |
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* the contents to a Swing JFrame. Note that some parts are done inefficently, |
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* this is done to make the code more readable. |
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*/ |
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public class TestDepthStencil extends SimpleApplication implements SceneProcessor { |
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private static String TOGGLE_STENCIL = "TOGGLE_STENCIL"; |
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private Geometry offBox; |
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private float angle = 0; |
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private FrameBuffer offBuffer; |
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private ViewPort offView; |
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private Texture2D offTex; |
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private Camera offCamera; |
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private ImageDisplay display; |
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private boolean enableStencil = false; |
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private static final int width = 800, height = 600; |
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private final ByteBuffer cpuBuf = BufferUtils.createByteBuffer(width * height * 4); |
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private final byte[] cpuArray = new byte[width * height * 4]; |
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private final BufferedImage image = new BufferedImage(width, height, |
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BufferedImage.TYPE_4BYTE_ABGR); |
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private class ImageDisplay extends JPanel { |
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private long t; |
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private long total; |
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private int frames; |
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private int fps; |
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@Override |
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public void paintComponent(Graphics gfx) { |
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super.paintComponent(gfx); |
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Graphics2D g2d = (Graphics2D) gfx; |
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if (t == 0) |
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t = timer.getTime(); |
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// g2d.setBackground(Color.BLACK);
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// g2d.clearRect(0,0,width,height);
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synchronized (image){ |
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g2d.drawImage(image, null, 0, 0); |
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} |
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long t2 = timer.getTime(); |
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long dt = t2 - t; |
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total += dt; |
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frames ++; |
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t = t2; |
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if (total > 1000){ |
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fps = frames; |
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total = 0; |
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frames = 0; |
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} |
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g2d.setColor(Color.white); |
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g2d.drawString("FPS: "+fps, 0, getHeight() - 100); |
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g2d.drawString("Toggle Stencil : [SPACE] (" + enableStencil + ")", 0, getHeight() - 10); |
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} |
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} |
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public static void main(String[] args){ |
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TestDepthStencil app = new TestDepthStencil(); |
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app.setPauseOnLostFocus(false); |
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AppSettings settings = new AppSettings(true); |
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settings.setResolution(1, 1); |
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app.setSettings(settings); |
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app.start(Type.OffscreenSurface); |
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} |
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public void createDisplayFrame(){ |
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SwingUtilities.invokeLater(new Runnable(){ |
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public void run(){ |
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final JFrame frame = new JFrame("Render Display"); |
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display = new ImageDisplay(); |
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display.setPreferredSize(new Dimension(width, height)); |
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frame.getContentPane().add(display); |
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frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE); |
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frame.addWindowListener(new WindowAdapter(){ |
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public void windowClosed(WindowEvent e){ |
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stop(); |
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} |
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}); |
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frame.addKeyListener(new KeyListener() { |
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public void keyTyped(KeyEvent ke) { |
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} |
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public void keyPressed(KeyEvent ke) { |
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} |
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public void keyReleased(KeyEvent ke) { |
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if (ke.getKeyCode() == KeyEvent.VK_SPACE) { |
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enableStencil = !enableStencil; |
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}else if (ke.getKeyCode() == KeyEvent.VK_ESCAPE) { |
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frame.setVisible(false); |
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} |
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} |
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}); |
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frame.pack(); |
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frame.setLocationRelativeTo(null); |
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frame.setResizable(false); |
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frame.setVisible(true); |
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} |
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}); |
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} |
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public void updateImageContents(){ |
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cpuBuf.clear(); |
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renderer.readFrameBuffer(offBuffer, cpuBuf); |
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synchronized (image) { |
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Screenshots.convertScreenShot(cpuBuf, image); |
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} |
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if (display != null) |
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display.repaint(); |
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} |
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public void setupOffscreenView(){ |
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offCamera = new Camera(width, height); |
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// create a pre-view. a view that is rendered before the main view
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offView = renderManager.createPreView("Offscreen View", offCamera); |
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offView.setBackgroundColor(ColorRGBA.DarkGray); |
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offView.setClearFlags(true, true, true); |
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// this will let us know when the scene has been rendered to the
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// frame buffer
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offView.addProcessor(this); |
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// create offscreen framebuffer
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offBuffer = new FrameBuffer(width, height, 1); |
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//setup framebuffer's cam
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offCamera.setFrustumPerspective(45f, 1f, 1f, 1000f); |
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offCamera.setLocation(new Vector3f(0f, 0f, -5f)); |
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offCamera.lookAt(new Vector3f(0f, 0f, 0f), Vector3f.UNIT_Y); |
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//setup framebuffer's texture
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// offTex = new Texture2D(width, height, Format.RGBA8);
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//setup framebuffer to use renderbuffer
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// this is faster for gpu -> cpu copies
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offBuffer.setDepthBuffer(Format.Depth24Stencil8); |
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offBuffer.setColorBuffer(Format.RGBA8); |
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// offBuffer.setColorTexture(offTex);
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//set viewport to render to offscreen framebuffer
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offView.setOutputFrameBuffer(offBuffer); |
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// setup framebuffer's scene
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Box boxMesh = new Box(Vector3f.ZERO, 1,1,1); |
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final Material material = assetManager.loadMaterial("Interface/Logo/Logo.j3m"); |
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offBox = new Geometry("box", boxMesh); |
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offBox.setMaterial(material); |
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offBox.addControl(new AbstractControl() { |
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@Override |
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protected void controlUpdate(float tpf) { |
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material.getAdditionalRenderState().setStencil(enableStencil, |
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StencilOperation.Keep, StencilOperation.Keep, StencilOperation.Keep, |
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StencilOperation.Keep, StencilOperation.Keep, StencilOperation.Keep, |
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TestFunction.Never, TestFunction.Never |
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//TestFunction.Always, TestFunction.Always
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); |
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} |
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@Override |
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protected void controlRender(RenderManager rm, ViewPort vp) { |
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} |
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}); |
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// attach the scene to the viewport to be rendered
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offView.attachScene(offBox); |
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} |
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@Override |
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public void simpleInitApp() { |
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setupOffscreenView(); |
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createDisplayFrame(); |
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} |
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@Override |
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public void simpleUpdate(float tpf){ |
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Quaternion q = new Quaternion(); |
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angle += tpf; |
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angle %= FastMath.TWO_PI; |
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q.fromAngles(angle, 0, angle); |
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offBox.setLocalRotation(q); |
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offBox.updateLogicalState(tpf); |
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offBox.updateGeometricState(); |
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} |
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public void initialize(RenderManager rm, ViewPort vp) { |
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} |
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public void reshape(ViewPort vp, int w, int h) { |
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} |
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public boolean isInitialized() { |
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return true; |
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} |
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public void preFrame(float tpf) { |
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} |
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public void postQueue(RenderQueue rq) { |
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} |
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/** |
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* Update the CPU image's contents after the scene has |
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* been rendered to the framebuffer. |
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*/ |
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public void postFrame(FrameBuffer out) { |
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updateImageContents(); |
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} |
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public void cleanup() { |
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} |
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} |
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