| /* |
| * 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.terrain; |
| |
| import com.jme3.app.SimpleApplication; |
| import com.jme3.collision.CollisionResult; |
| import com.jme3.collision.CollisionResults; |
| import com.jme3.font.BitmapText; |
| import com.jme3.input.KeyInput; |
| import com.jme3.input.MouseInput; |
| import com.jme3.input.controls.ActionListener; |
| import com.jme3.input.controls.KeyTrigger; |
| import com.jme3.input.controls.MouseButtonTrigger; |
| import com.jme3.light.AmbientLight; |
| import com.jme3.light.DirectionalLight; |
| import com.jme3.material.Material; |
| import com.jme3.material.RenderState.BlendMode; |
| import com.jme3.math.ColorRGBA; |
| import com.jme3.math.Ray; |
| import com.jme3.math.Vector2f; |
| import com.jme3.math.Vector3f; |
| import com.jme3.scene.Geometry; |
| import com.jme3.scene.debug.Arrow; |
| import com.jme3.scene.shape.Sphere; |
| import com.jme3.terrain.geomipmap.TerrainGrid; |
| import com.jme3.terrain.geomipmap.TerrainLodControl; |
| import com.jme3.terrain.geomipmap.TerrainQuad; |
| import com.jme3.terrain.geomipmap.grid.FractalTileLoader; |
| import com.jme3.terrain.geomipmap.lodcalc.DistanceLodCalculator; |
| import com.jme3.terrain.heightmap.AbstractHeightMap; |
| import com.jme3.terrain.heightmap.ImageBasedHeightMap; |
| import com.jme3.terrain.noise.ShaderUtils; |
| import com.jme3.terrain.noise.basis.FilteredBasis; |
| import com.jme3.terrain.noise.filter.IterativeFilter; |
| import com.jme3.terrain.noise.filter.OptimizedErode; |
| import com.jme3.terrain.noise.filter.PerturbFilter; |
| import com.jme3.terrain.noise.filter.SmoothFilter; |
| import com.jme3.terrain.noise.fractal.FractalSum; |
| import com.jme3.terrain.noise.modulator.NoiseModulator; |
| import com.jme3.texture.Texture; |
| import com.jme3.texture.Texture.WrapMode; |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| /** |
| * |
| * @author Brent Owens |
| */ |
| public class TerrainTestModifyHeight extends SimpleApplication { |
| |
| private TerrainQuad terrain; |
| Material matTerrain; |
| Material matWire; |
| boolean wireframe = true; |
| boolean triPlanar = false; |
| boolean wardiso = false; |
| boolean minnaert = false; |
| protected BitmapText hintText; |
| private float grassScale = 64; |
| private float dirtScale = 16; |
| private float rockScale = 128; |
| |
| private boolean raiseTerrain = false; |
| private boolean lowerTerrain = false; |
| |
| private Geometry marker; |
| private Geometry markerNormal; |
| |
| public static void main(String[] args) { |
| TerrainTestModifyHeight app = new TerrainTestModifyHeight(); |
| app.start(); |
| } |
| |
| @Override |
| public void simpleUpdate(float tpf){ |
| Vector3f intersection = getWorldIntersection(); |
| updateHintText(intersection); |
| |
| if (raiseTerrain){ |
| |
| if (intersection != null) { |
| adjustHeight(intersection, 64, tpf * 60); |
| } |
| }else if (lowerTerrain){ |
| if (intersection != null) { |
| adjustHeight(intersection, 64, -tpf * 60); |
| } |
| } |
| |
| if (terrain != null && intersection != null) { |
| float h = terrain.getHeight(new Vector2f(intersection.x, intersection.z)); |
| Vector3f tl = terrain.getWorldTranslation(); |
| marker.setLocalTranslation(tl.add(new Vector3f(intersection.x, h, intersection.z)) ); |
| markerNormal.setLocalTranslation(tl.add(new Vector3f(intersection.x, h, intersection.z)) ); |
| |
| Vector3f normal = terrain.getNormal(new Vector2f(intersection.x, intersection.z)); |
| ((Arrow)markerNormal.getMesh()).setArrowExtent(normal); |
| } |
| } |
| |
| @Override |
| public void simpleInitApp() { |
| loadHintText(); |
| initCrossHairs(); |
| setupKeys(); |
| |
| createMarker(); |
| |
| // WIREFRAME material |
| matWire = new Material(assetManager, "Common/MatDefs/Misc/Unshaded.j3md"); |
| matWire.getAdditionalRenderState().setWireframe(true); |
| matWire.setColor("Color", ColorRGBA.Green); |
| |
| createTerrain(); |
| //createTerrainGrid(); |
| |
| DirectionalLight light = new DirectionalLight(); |
| light.setDirection((new Vector3f(-0.5f, -1f, -0.5f)).normalize()); |
| rootNode.addLight(light); |
| |
| AmbientLight ambLight = new AmbientLight(); |
| ambLight.setColor(new ColorRGBA(1f, 1f, 0.8f, 0.2f)); |
| rootNode.addLight(ambLight); |
| |
| cam.setLocation(new Vector3f(0, 256, 0)); |
| cam.lookAtDirection(new Vector3f(0, -1f, 0).normalizeLocal(), Vector3f.UNIT_X); |
| } |
| |
| public void loadHintText() { |
| hintText = new BitmapText(guiFont, false); |
| hintText.setLocalTranslation(0, getCamera().getHeight(), 0); |
| hintText.setText("Hit 1 to raise terrain, hit 2 to lower terrain"); |
| guiNode.attachChild(hintText); |
| } |
| |
| public void updateHintText(Vector3f target) { |
| int x = (int) getCamera().getLocation().x; |
| int y = (int) getCamera().getLocation().y; |
| int z = (int) getCamera().getLocation().z; |
| String targetText = ""; |
| if (target!= null) |
| targetText = " intersect: "+target.toString(); |
| hintText.setText("Press left mouse button to raise terrain, press right mouse button to lower terrain. " + x + "," + y + "," + z+targetText); |
| } |
| |
| protected void initCrossHairs() { |
| BitmapText ch = new BitmapText(guiFont, false); |
| ch.setSize(guiFont.getCharSet().getRenderedSize() * 2); |
| ch.setText("+"); // crosshairs |
| ch.setLocalTranslation( // center |
| settings.getWidth() / 2 - guiFont.getCharSet().getRenderedSize() / 3 * 2, |
| settings.getHeight() / 2 + ch.getLineHeight() / 2, 0); |
| guiNode.attachChild(ch); |
| } |
| |
| private void setupKeys() { |
| flyCam.setMoveSpeed(100); |
| inputManager.addMapping("wireframe", new KeyTrigger(KeyInput.KEY_T)); |
| inputManager.addListener(actionListener, "wireframe"); |
| inputManager.addMapping("Raise", new MouseButtonTrigger(MouseInput.BUTTON_LEFT)); |
| inputManager.addListener(actionListener, "Raise"); |
| inputManager.addMapping("Lower", new MouseButtonTrigger(MouseInput.BUTTON_RIGHT)); |
| inputManager.addListener(actionListener, "Lower"); |
| } |
| private ActionListener actionListener = new ActionListener() { |
| |
| public void onAction(String name, boolean pressed, float tpf) { |
| if (name.equals("wireframe") && !pressed) { |
| wireframe = !wireframe; |
| if (!wireframe) { |
| terrain.setMaterial(matWire); |
| } else { |
| terrain.setMaterial(matTerrain); |
| } |
| } else if (name.equals("Raise")) { |
| raiseTerrain = pressed; |
| } else if (name.equals("Lower")) { |
| lowerTerrain = pressed; |
| } |
| } |
| }; |
| |
| private void adjustHeight(Vector3f loc, float radius, float height) { |
| |
| // offset it by radius because in the loop we iterate through 2 radii |
| int radiusStepsX = (int) (radius / terrain.getLocalScale().x); |
| int radiusStepsZ = (int) (radius / terrain.getLocalScale().z); |
| |
| float xStepAmount = terrain.getLocalScale().x; |
| float zStepAmount = terrain.getLocalScale().z; |
| long start = System.currentTimeMillis(); |
| List<Vector2f> locs = new ArrayList<Vector2f>(); |
| List<Float> heights = new ArrayList<Float>(); |
| |
| for (int z = -radiusStepsZ; z < radiusStepsZ; z++) { |
| for (int x = -radiusStepsX; x < radiusStepsX; x++) { |
| |
| float locX = loc.x + (x * xStepAmount); |
| float locZ = loc.z + (z * zStepAmount); |
| |
| if (isInRadius(locX - loc.x, locZ - loc.z, radius)) { |
| // see if it is in the radius of the tool |
| float h = calculateHeight(radius, height, locX - loc.x, locZ - loc.z); |
| locs.add(new Vector2f(locX, locZ)); |
| heights.add(h); |
| } |
| } |
| } |
| |
| terrain.adjustHeight(locs, heights); |
| //System.out.println("Modified "+locs.size()+" points, took: " + (System.currentTimeMillis() - start)+" ms"); |
| terrain.updateModelBound(); |
| } |
| |
| private boolean isInRadius(float x, float y, float radius) { |
| Vector2f point = new Vector2f(x, y); |
| // return true if the distance is less than equal to the radius |
| return point.length() <= radius; |
| } |
| |
| private float calculateHeight(float radius, float heightFactor, float x, float z) { |
| // find percentage for each 'unit' in radius |
| Vector2f point = new Vector2f(x, z); |
| float val = point.length() / radius; |
| val = 1 - val; |
| if (val <= 0) { |
| val = 0; |
| } |
| return heightFactor * val; |
| } |
| |
| private Vector3f getWorldIntersection() { |
| Vector3f origin = cam.getWorldCoordinates(new Vector2f(settings.getWidth() / 2, settings.getHeight() / 2), 0.0f); |
| Vector3f direction = cam.getWorldCoordinates(new Vector2f(settings.getWidth() / 2, settings.getHeight() / 2), 0.3f); |
| direction.subtractLocal(origin).normalizeLocal(); |
| |
| Ray ray = new Ray(origin, direction); |
| CollisionResults results = new CollisionResults(); |
| int numCollisions = terrain.collideWith(ray, results); |
| if (numCollisions > 0) { |
| CollisionResult hit = results.getClosestCollision(); |
| return hit.getContactPoint(); |
| } |
| return null; |
| } |
| |
| private void createTerrain() { |
| // First, we load up our textures and the heightmap texture for the terrain |
| |
| // TERRAIN TEXTURE material |
| matTerrain = new Material(assetManager, "Common/MatDefs/Terrain/TerrainLighting.j3md"); |
| matTerrain.setBoolean("useTriPlanarMapping", false); |
| matTerrain.setBoolean("WardIso", true); |
| matTerrain.setFloat("Shininess", 0); |
| |
| // ALPHA map (for splat textures) |
| matTerrain.setTexture("AlphaMap", assetManager.loadTexture("Textures/Terrain/splat/alphamap.png")); |
| |
| // GRASS texture |
| Texture grass = assetManager.loadTexture("Textures/Terrain/splat/grass.jpg"); |
| grass.setWrap(WrapMode.Repeat); |
| matTerrain.setTexture("DiffuseMap", grass); |
| matTerrain.setFloat("DiffuseMap_0_scale", grassScale); |
| |
| // DIRT texture |
| Texture dirt = assetManager.loadTexture("Textures/Terrain/splat/dirt.jpg"); |
| dirt.setWrap(WrapMode.Repeat); |
| matTerrain.setTexture("DiffuseMap_1", dirt); |
| matTerrain.setFloat("DiffuseMap_1_scale", dirtScale); |
| |
| // ROCK texture |
| Texture rock = assetManager.loadTexture("Textures/Terrain/splat/road.jpg"); |
| rock.setWrap(WrapMode.Repeat); |
| matTerrain.setTexture("DiffuseMap_2", rock); |
| matTerrain.setFloat("DiffuseMap_2_scale", rockScale); |
| |
| // HEIGHTMAP image (for the terrain heightmap) |
| Texture heightMapImage = assetManager.loadTexture("Textures/Terrain/splat/mountains512.png"); |
| AbstractHeightMap heightmap = null; |
| try { |
| heightmap = new ImageBasedHeightMap(heightMapImage.getImage(), 0.5f); |
| heightmap.load(); |
| heightmap.smooth(0.9f, 1); |
| |
| } catch (Exception e) { |
| e.printStackTrace(); |
| } |
| |
| // CREATE THE TERRAIN |
| terrain = new TerrainQuad("terrain", 65, 513, heightmap.getHeightMap()); |
| TerrainLodControl control = new TerrainLodControl(terrain, getCamera()); |
| control.setLodCalculator( new DistanceLodCalculator(65, 2.7f) ); // patch size, and a multiplier |
| terrain.addControl(control); |
| terrain.setMaterial(matTerrain); |
| terrain.setLocalTranslation(0, -100, 0); |
| terrain.setLocalScale(2.5f, 0.5f, 2.5f); |
| rootNode.attachChild(terrain); |
| } |
| |
| private void createTerrainGrid() { |
| |
| // TERRAIN TEXTURE material |
| matTerrain = new Material(this.assetManager, "Common/MatDefs/Terrain/HeightBasedTerrain.j3md"); |
| |
| // Parameters to material: |
| // regionXColorMap: X = 1..4 the texture that should be appliad to state X |
| // regionX: a Vector3f containing the following information: |
| // regionX.x: the start height of the region |
| // regionX.y: the end height of the region |
| // regionX.z: the texture scale for the region |
| // it might not be the most elegant way for storing these 3 values, but it packs the data nicely :) |
| // slopeColorMap: the texture to be used for cliffs, and steep mountain sites |
| // slopeTileFactor: the texture scale for slopes |
| // terrainSize: the total size of the terrain (used for scaling the texture) |
| // GRASS texture |
| Texture grass = assetManager.loadTexture("Textures/Terrain/splat/grass.jpg"); |
| grass.setWrap(WrapMode.Repeat); |
| matTerrain.setTexture("region1ColorMap", grass); |
| matTerrain.setVector3("region1", new Vector3f(88, 200, this.grassScale)); |
| |
| // DIRT texture |
| Texture dirt = assetManager.loadTexture("Textures/Terrain/splat/dirt.jpg"); |
| dirt.setWrap(WrapMode.Repeat); |
| matTerrain.setTexture("region2ColorMap", dirt); |
| matTerrain.setVector3("region2", new Vector3f(0, 90, this.dirtScale)); |
| |
| // ROCK texture |
| Texture rock = assetManager.loadTexture("Textures/Terrain/Rock2/rock.jpg"); |
| rock.setWrap(WrapMode.Repeat); |
| matTerrain.setTexture("region3ColorMap", rock); |
| matTerrain.setVector3("region3", new Vector3f(198, 260, this.rockScale)); |
| |
| matTerrain.setTexture("region4ColorMap", rock); |
| matTerrain.setVector3("region4", new Vector3f(198, 260, this.rockScale)); |
| |
| matTerrain.setTexture("slopeColorMap", rock); |
| matTerrain.setFloat("slopeTileFactor", 32); |
| |
| matTerrain.setFloat("terrainSize", 513); |
| |
| FractalSum base = new FractalSum(); |
| base.setRoughness(0.7f); |
| base.setFrequency(1.0f); |
| base.setAmplitude(1.0f); |
| base.setLacunarity(2.12f); |
| base.setOctaves(8); |
| base.setScale(0.02125f); |
| base.addModulator(new NoiseModulator() { |
| @Override |
| public float value(float... in) { |
| return ShaderUtils.clamp(in[0] * 0.5f + 0.5f, 0, 1); |
| } |
| }); |
| |
| FilteredBasis ground = new FilteredBasis(base); |
| |
| PerturbFilter perturb = new PerturbFilter(); |
| perturb.setMagnitude(0.119f); |
| |
| OptimizedErode therm = new OptimizedErode(); |
| therm.setRadius(5); |
| therm.setTalus(0.011f); |
| |
| SmoothFilter smooth = new SmoothFilter(); |
| smooth.setRadius(1); |
| smooth.setEffect(0.7f); |
| |
| IterativeFilter iterate = new IterativeFilter(); |
| iterate.addPreFilter(perturb); |
| iterate.addPostFilter(smooth); |
| iterate.setFilter(therm); |
| iterate.setIterations(1); |
| |
| ground.addPreFilter(iterate); |
| |
| this.terrain = new TerrainGrid("terrain", 65, 257, new FractalTileLoader(ground, 256f)); |
| |
| |
| terrain.setMaterial(matTerrain); |
| terrain.setLocalTranslation(0, 0, 0); |
| terrain.setLocalScale(2f, 1f, 2f); |
| |
| rootNode.attachChild(this.terrain); |
| |
| TerrainLodControl control = new TerrainLodControl(this.terrain, getCamera()); |
| this.terrain.addControl(control); |
| } |
| |
| private void createMarker() { |
| // collision marker |
| Sphere sphere = new Sphere(8, 8, 0.5f); |
| marker = new Geometry("Marker"); |
| marker.setMesh(sphere); |
| |
| Material mat = new Material(assetManager, "Common/MatDefs/Misc/Unshaded.j3md"); |
| mat.setColor("Color", new ColorRGBA(251f/255f, 130f/255f, 0f, 0.6f)); |
| mat.getAdditionalRenderState().setBlendMode(BlendMode.Alpha); |
| |
| marker.setMaterial(mat); |
| rootNode.attachChild(marker); |
| |
| |
| // surface normal marker |
| Arrow arrow = new Arrow(new Vector3f(0,1,0)); |
| markerNormal = new Geometry("MarkerNormal"); |
| markerNormal.setMesh(arrow); |
| markerNormal.setMaterial(mat); |
| rootNode.attachChild(markerNormal); |
| } |
| } |
