| /* |
| * Copyright (c) 2009-2010 jMonkeyEngine |
| * 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 'jMonkeyEngine' 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 jme3test.post; |
| |
| import com.jme3.app.SimpleApplication; |
| import com.jme3.input.KeyInput; |
| import com.jme3.input.controls.ActionListener; |
| import com.jme3.input.controls.KeyTrigger; |
| import com.jme3.material.Material; |
| import com.jme3.math.ColorRGBA; |
| import com.jme3.math.FastMath; |
| import com.jme3.math.Quaternion; |
| import com.jme3.math.Vector3f; |
| import com.jme3.renderer.Camera; |
| import com.jme3.renderer.ViewPort; |
| import com.jme3.scene.Geometry; |
| import com.jme3.scene.shape.Box; |
| import com.jme3.texture.FrameBuffer; |
| import com.jme3.texture.Image.Format; |
| import com.jme3.texture.Texture; |
| import com.jme3.texture.Texture2D; |
| |
| /** |
| * This test renders a scene to a texture, then displays the texture on a cube. |
| */ |
| public class TestRenderToTexture extends SimpleApplication implements ActionListener { |
| |
| private static final String TOGGLE_UPDATE = "Toggle Update"; |
| private Geometry offBox; |
| private float angle = 0; |
| private ViewPort offView; |
| |
| public static void main(String[] args){ |
| TestRenderToTexture app = new TestRenderToTexture(); |
| app.start(); |
| } |
| |
| public Texture setupOffscreenView(){ |
| Camera offCamera = new Camera(512, 512); |
| |
| offView = renderManager.createPreView("Offscreen View", offCamera); |
| offView.setClearFlags(true, true, true); |
| offView.setBackgroundColor(ColorRGBA.DarkGray); |
| |
| // create offscreen framebuffer |
| FrameBuffer offBuffer = new FrameBuffer(512, 512, 1); |
| |
| //setup framebuffer's cam |
| offCamera.setFrustumPerspective(45f, 1f, 1f, 1000f); |
| offCamera.setLocation(new Vector3f(0f, 0f, -5f)); |
| offCamera.lookAt(new Vector3f(0f, 0f, 0f), Vector3f.UNIT_Y); |
| |
| //setup framebuffer's texture |
| Texture2D offTex = new Texture2D(512, 512, Format.RGBA8); |
| offTex.setMinFilter(Texture.MinFilter.Trilinear); |
| offTex.setMagFilter(Texture.MagFilter.Bilinear); |
| |
| //setup framebuffer to use texture |
| offBuffer.setDepthBuffer(Format.Depth); |
| offBuffer.setColorTexture(offTex); |
| |
| //set viewport to render to offscreen framebuffer |
| offView.setOutputFrameBuffer(offBuffer); |
| |
| // setup framebuffer's scene |
| Box boxMesh = new Box(Vector3f.ZERO, 1,1,1); |
| Material material = assetManager.loadMaterial("Interface/Logo/Logo.j3m"); |
| offBox = new Geometry("box", boxMesh); |
| offBox.setMaterial(material); |
| |
| // attach the scene to the viewport to be rendered |
| offView.attachScene(offBox); |
| |
| return offTex; |
| } |
| |
| @Override |
| public void simpleInitApp() { |
| cam.setLocation(new Vector3f(3, 3, 3)); |
| cam.lookAt(Vector3f.ZERO, Vector3f.UNIT_Y); |
| |
| //setup main scene |
| Geometry quad = new Geometry("box", new Box(Vector3f.ZERO, 1,1,1)); |
| |
| Texture offTex = setupOffscreenView(); |
| |
| Material mat = new Material(assetManager, "Common/MatDefs/Misc/Unshaded.j3md"); |
| mat.setTexture("ColorMap", offTex); |
| quad.setMaterial(mat); |
| rootNode.attachChild(quad); |
| inputManager.addMapping(TOGGLE_UPDATE, new KeyTrigger(KeyInput.KEY_SPACE)); |
| inputManager.addListener(this, TOGGLE_UPDATE); |
| } |
| |
| @Override |
| public void simpleUpdate(float tpf){ |
| Quaternion q = new Quaternion(); |
| |
| if (offView.isEnabled()) { |
| angle += tpf; |
| angle %= FastMath.TWO_PI; |
| q.fromAngles(angle, 0, angle); |
| |
| offBox.setLocalRotation(q); |
| offBox.updateLogicalState(tpf); |
| offBox.updateGeometricState(); |
| } |
| } |
| |
| @Override |
| public void onAction(String name, boolean isPressed, float tpf) { |
| if (name.equals(TOGGLE_UPDATE) && isPressed) { |
| offView.setEnabled(!offView.isEnabled()); |
| } |
| } |
| |
| |
| } |