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127 lines
5.1 KiB
127 lines
5.1 KiB
/*
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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.helloworld;
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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.terrain.geomipmap.TerrainLodControl;
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import com.jme3.terrain.geomipmap.TerrainQuad;
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import com.jme3.terrain.geomipmap.lodcalc.DistanceLodCalculator;
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import com.jme3.terrain.heightmap.AbstractHeightMap;
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import com.jme3.terrain.heightmap.ImageBasedHeightMap;
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import com.jme3.texture.Texture;
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import com.jme3.texture.Texture.WrapMode;
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public class HelloTerrain extends SimpleApplication {
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private TerrainQuad terrain;
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Material mat_terrain;
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public static void main(String[] args) {
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HelloTerrain app = new HelloTerrain();
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app.start();
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}
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@Override
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public void simpleInitApp() {
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flyCam.setMoveSpeed(50);
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/** 1. Create terrain material and load four textures into it. */
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mat_terrain = new Material(assetManager,
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"Common/MatDefs/Terrain/Terrain.j3md");
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/** 1.1) Add ALPHA map (for red-blue-green coded splat textures) */
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mat_terrain.setTexture("Alpha", assetManager.loadTexture(
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"Textures/Terrain/splat/alphamap.png"));
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/** 1.2) Add GRASS texture into the red layer (Tex1). */
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Texture grass = assetManager.loadTexture(
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"Textures/Terrain/splat/grass.jpg");
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grass.setWrap(WrapMode.Repeat);
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mat_terrain.setTexture("Tex1", grass);
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mat_terrain.setFloat("Tex1Scale", 64f);
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/** 1.3) Add DIRT texture into the green layer (Tex2) */
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Texture dirt = assetManager.loadTexture(
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"Textures/Terrain/splat/dirt.jpg");
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dirt.setWrap(WrapMode.Repeat);
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mat_terrain.setTexture("Tex2", dirt);
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mat_terrain.setFloat("Tex2Scale", 32f);
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/** 1.4) Add ROAD texture into the blue layer (Tex3) */
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Texture rock = assetManager.loadTexture(
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"Textures/Terrain/splat/road.jpg");
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rock.setWrap(WrapMode.Repeat);
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mat_terrain.setTexture("Tex3", rock);
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mat_terrain.setFloat("Tex3Scale", 128f);
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/** 2.a Create a custom height map from an image */
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AbstractHeightMap heightmap = null;
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Texture heightMapImage = assetManager.loadTexture(
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"Textures/Terrain/splat/mountains512.png");
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heightmap = new ImageBasedHeightMap(heightMapImage.getImage());
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/** 2.b Create a random height map */
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// HillHeightMap heightmap = null;
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// HillHeightMap.NORMALIZE_RANGE = 100;
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// try {
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// heightmap = new HillHeightMap(513, 1000, 50, 100, (byte) 3);
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// } catch (Exception ex) {
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// ex.printStackTrace();
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// }
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heightmap.load();
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/** 3. We have prepared material and heightmap.
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* Now we create the actual terrain:
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* 3.1) Create a TerrainQuad and name it "my terrain".
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* 3.2) A good value for terrain tiles is 64x64 -- so we supply 64+1=65.
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* 3.3) We prepared a heightmap of size 512x512 -- so we supply 512+1=513.
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* 3.4) As LOD step scale we supply Vector3f(1,1,1).
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* 3.5) We supply the prepared heightmap itself.
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*/
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int patchSize = 65;
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terrain = new TerrainQuad("my terrain", patchSize, 513, heightmap.getHeightMap());
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/** 4. We give the terrain its material, position & scale it, and attach it. */
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terrain.setMaterial(mat_terrain);
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terrain.setLocalTranslation(0, -100, 0);
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terrain.setLocalScale(2f, 1f, 2f);
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rootNode.attachChild(terrain);
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/** 5. The LOD (level of detail) depends on were the camera is: */
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TerrainLodControl control = new TerrainLodControl(terrain, getCamera());
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control.setLodCalculator( new DistanceLodCalculator(patchSize, 2.7f) ); // patch size, and a multiplier
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terrain.addControl(control);
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}
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}
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