/* * 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 locs = new ArrayList(); List heights = new ArrayList(); 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); } }