159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta/* 259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * Copyright (c) 2009-2010 jMonkeyEngine 359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * All rights reserved. 459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * 559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * Redistribution and use in source and binary forms, with or without 659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * modification, are permitted provided that the following conditions are 759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * met: 859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * 959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * * Redistributions of source code must retain the above copyright 1059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * notice, this list of conditions and the following disclaimer. 1159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * 1259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * * Redistributions in binary form must reproduce the above copyright 1359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * notice, this list of conditions and the following disclaimer in the 1459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * documentation and/or other materials provided with the distribution. 1559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * 1659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * * Neither the name of 'jMonkeyEngine' nor the names of its contributors 1759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * may be used to endorse or promote products derived from this software 1859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * without specific prior written permission. 1959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * 2059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 2159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 2259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 2359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR 2459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 2559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 2659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 2759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 2859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 2959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 3059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 3159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta */ 3259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta// $Id: Dome.java 4131 2009-03-19 20:15:28Z blaine.dev $ 3359b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartapackage com.jme3.scene.shape; 3459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 3559b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport com.jme3.export.InputCapsule; 3659b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport com.jme3.export.JmeExporter; 3759b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport com.jme3.export.JmeImporter; 3859b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport com.jme3.export.OutputCapsule; 3959b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport com.jme3.math.FastMath; 4059b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport com.jme3.math.Vector3f; 4159b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport com.jme3.scene.Mesh; 4259b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport com.jme3.scene.VertexBuffer.Type; 4359b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport com.jme3.util.BufferUtils; 4459b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport com.jme3.util.TempVars; 4559b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport java.io.IOException; 4659b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport java.nio.FloatBuffer; 4759b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport java.nio.ShortBuffer; 4859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 4959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta/** 5059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * A hemisphere. 5159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * 5259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * @author Peter Andersson 5359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * @author Joshua Slack (Original sphere code that was adapted) 5459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * @version $Revision: 4131 $, $Date: 2009-03-19 16:15:28 -0400 (Thu, 19 Mar 2009) $ 5559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta */ 5659b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartapublic class Dome extends Mesh { 5759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 5859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta private int planes; 5959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta private int radialSamples; 6059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta /** The radius of the dome */ 6159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta private float radius; 6259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta /** The center of the dome */ 6359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta private Vector3f center; 6459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta private boolean insideView = true; 6559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 6659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta /** 6759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * Serialization only. Do not use. 6859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta */ 6959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public Dome() { 7059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 7159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 7259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta /** 7359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * Constructs a dome for use as a SkyDome. The SkyDome is centered at the origin 7459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * and only visible from the inside. 7559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * @param planes 7659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * The number of planes along the Z-axis. Must be >= 2. 7759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * Influences how round the arch of the dome is. 7859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * @param radialSamples 7959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * The number of samples along the radial. 8059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * Influences how round the base of the dome is. 8159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * @param radius 8259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * Radius of the dome. 8359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * @see #Dome(java.lang.String, com.jme.math.Vector3f, int, int, float) 8459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta */ 8559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public Dome(int planes, int radialSamples, float radius) { 8659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta this(new Vector3f(0, 0, 0), planes, radialSamples, radius); 8759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 8859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 8959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta /** 9059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * Constructs a dome visible from the inside, e.g. for use as a SkyDome. 9159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * All geometry data buffers are updated automatically. <br> 9259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * For a cone, set planes=2. For a pyramid, set radialSamples=4 and planes=2. 9359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * Increasing planes and radialSamples increase the quality of the dome. 9459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * 9559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * @param center 9659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * Center of the dome. 9759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * @param planes 9859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * The number of planes along the Z-axis. Must be >= 2. 9959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * Influences how round the arch of the dome is. 10059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * @param radialSamples 10159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * The number of samples along the radial. 10259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * Influences how round the base of the dome is. 10359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * @param radius 10459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * The radius of the dome. 10559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta */ 10659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public Dome(Vector3f center, int planes, int radialSamples, 10759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta float radius) { 10859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta super(); 10959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta updateGeometry(center, planes, radialSamples, radius, true); 11059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 11159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 11259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta /** 11359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * Constructs a dome. Use this constructor for half-sphere, pyramids, or cones. 11459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * All geometry data buffers are updated automatically. <br> 11559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * For a cone, set planes=2. For a pyramid, set radialSamples=4 and planes=2. 11659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * Setting higher values for planes and radialSamples increases 11759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * the quality of the half-sphere. 11859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * 11959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * @param center 12059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * Center of the dome. 12159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * @param planes 12259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * The number of planes along the Z-axis. Must be >= 2. 12359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * Influences how round the arch of the dome is. 12459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * @param radialSamples 12559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * The number of samples along the radial. 12659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * Influences how round the base of the dome is. 12759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * @param radius 12859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * The radius of the dome. 12959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * @param insideView 13059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * If true, the dome is only visible from the inside, like a SkyDome. 13159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * If false, the dome is only visible from the outside. 13259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta */ 13359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public Dome(Vector3f center, int planes, int radialSamples, 13459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta float radius, boolean insideView) { 13559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta super(); 13659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta updateGeometry(center, planes, radialSamples, radius, insideView); 13759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 13859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 13959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public Vector3f getCenter() { 14059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return center; 14159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 14259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 14359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta /** 14459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * Get the number of planar segments along the z-axis of the dome. 14559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta */ 14659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public int getPlanes() { 14759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return planes; 14859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 14959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 15059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta /** 15159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * Get the number of samples radially around the main axis of the dome. 15259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta */ 15359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public int getRadialSamples() { 15459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return radialSamples; 15559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 15659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 15759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta /** 15859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * Get the radius of the dome. 15959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta */ 16059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public float getRadius() { 16159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return radius; 16259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 16359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 16459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta /** 16559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * Are the triangles connected in such a way as to present a view out from the dome or not. 16659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta */ 16759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public boolean isInsideView() { 16859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return insideView; 16959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 17059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 17159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta /** 17259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * Rebuilds the dome with a new set of parameters. 17359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * 17459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * @param center the new center of the dome. 17559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * @param planes the number of planes along the Z-axis. 17659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * @param radialSamples the new number of radial samples of the dome. 17759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * @param radius the new radius of the dome. 17859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * @param insideView should the dome be set up to be viewed from the inside looking out. 17959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta */ 18059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public void updateGeometry(Vector3f center, int planes, 18159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta int radialSamples, float radius, boolean insideView) { 18259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta this.insideView = insideView; 18359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta this.center = center != null ? center : new Vector3f(0, 0, 0); 18459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta this.planes = planes; 18559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta this.radialSamples = radialSamples; 18659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta this.radius = radius; 18759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 18859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta int vertCount = ((planes - 1) * (radialSamples + 1)) + 1; 18959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 19059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta // Allocate vertices, allocating one extra in each radial to get the 19159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta // correct texture coordinates 19259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta// setVertexCount(); 19359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta// setVertexBuffer(createVector3Buffer(getVertexCount())); 19459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 19559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta // allocate normals 19659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta// setNormalBuffer(createVector3Buffer(getVertexCount())); 19759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 19859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta // allocate texture coordinates 19959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta// getTextureCoords().set(0, new TexCoords(createVector2Buffer(getVertexCount()))); 20059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 20159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta FloatBuffer vb = BufferUtils.createVector3Buffer(vertCount); 20259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta FloatBuffer nb = BufferUtils.createVector3Buffer(vertCount); 20359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta FloatBuffer tb = BufferUtils.createVector2Buffer(vertCount); 20459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta setBuffer(Type.Position, 3, vb); 20559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta setBuffer(Type.Normal, 3, nb); 20659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta setBuffer(Type.TexCoord, 2, tb); 20759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 20859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta // generate geometry 20959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta float fInvRS = 1.0f / radialSamples; 21059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta float fYFactor = 1.0f / (planes - 1); 21159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 21259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta // Generate points on the unit circle to be used in computing the mesh 21359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta // points on a dome slice. 21459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta float[] afSin = new float[(radialSamples)]; 21559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta float[] afCos = new float[(radialSamples)]; 21659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta for (int iR = 0; iR < radialSamples; iR++) { 21759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta float fAngle = FastMath.TWO_PI * fInvRS * iR; 21859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta afCos[iR] = FastMath.cos(fAngle); 21959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta afSin[iR] = FastMath.sin(fAngle); 22059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 22159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 22259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta TempVars vars = TempVars.get(); 22359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta Vector3f tempVc = vars.vect3; 22459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta Vector3f tempVb = vars.vect2; 22559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta Vector3f tempVa = vars.vect1; 22659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 22759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta // generate the dome itself 22859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta int i = 0; 22959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta for (int iY = 0; iY < (planes - 1); iY++, i++) { 23059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta float fYFraction = fYFactor * iY; // in (0,1) 23159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta float fY = radius * fYFraction; 23259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta // compute center of slice 23359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta Vector3f kSliceCenter = tempVb.set(center); 23459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta kSliceCenter.y += fY; 23559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 23659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta // compute radius of slice 23759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta float fSliceRadius = FastMath.sqrt(FastMath.abs(radius * radius - fY * fY)); 23859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 23959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta // compute slice vertices 24059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta Vector3f kNormal; 24159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta int iSave = i; 24259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta for (int iR = 0; iR < radialSamples; iR++, i++) { 24359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta float fRadialFraction = iR * fInvRS; // in [0,1) 24459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta Vector3f kRadial = tempVc.set(afCos[iR], 0, afSin[iR]); 24559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta kRadial.mult(fSliceRadius, tempVa); 24659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta vb.put(kSliceCenter.x + tempVa.x).put( 24759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta kSliceCenter.y + tempVa.y).put( 24859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta kSliceCenter.z + tempVa.z); 24959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 25059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta BufferUtils.populateFromBuffer(tempVa, vb, i); 25159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta kNormal = tempVa.subtractLocal(center); 25259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta kNormal.normalizeLocal(); 25359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (insideView) { 25459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta nb.put(kNormal.x).put(kNormal.y).put(kNormal.z); 25559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } else { 25659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta nb.put(-kNormal.x).put(-kNormal.y).put(-kNormal.z); 25759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 25859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 25959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta tb.put(fRadialFraction).put(fYFraction); 26059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 26159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta BufferUtils.copyInternalVector3(vb, iSave, i); 26259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta BufferUtils.copyInternalVector3(nb, iSave, i); 26359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta tb.put(1.0f).put(fYFraction); 26459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 26559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 26659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta vars.release(); 26759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 26859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta // pole 26959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta vb.put(center.x).put(center.y + radius).put(center.z); 27059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta nb.put(0).put(insideView ? 1 : -1).put(0); 27159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta tb.put(0.5f).put(1.0f); 27259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 27359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta // allocate connectivity 27459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta int triCount = (planes - 2) * radialSamples * 2 + radialSamples; 27559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta ShortBuffer ib = BufferUtils.createShortBuffer(3 * triCount); 27659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta setBuffer(Type.Index, 3, ib); 27759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 27859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta // generate connectivity 27959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta int index = 0; 28059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta // Generate only for middle planes 28159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta for (int plane = 1; plane < (planes - 1); plane++) { 28259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta int bottomPlaneStart = ((plane - 1) * (radialSamples + 1)); 28359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta int topPlaneStart = (plane * (radialSamples + 1)); 28459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta for (int sample = 0; sample < radialSamples; sample++, index += 6) { 28559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (insideView){ 28659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta ib.put((short) (bottomPlaneStart + sample)); 28759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta ib.put((short) (bottomPlaneStart + sample + 1)); 28859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta ib.put((short) (topPlaneStart + sample)); 28959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta ib.put((short) (bottomPlaneStart + sample + 1)); 29059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta ib.put((short) (topPlaneStart + sample + 1)); 29159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta ib.put((short) (topPlaneStart + sample)); 29259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta }else{ 29359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta ib.put((short) (bottomPlaneStart + sample)); 29459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta ib.put((short) (topPlaneStart + sample)); 29559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta ib.put((short) (bottomPlaneStart + sample + 1)); 29659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta ib.put((short) (bottomPlaneStart + sample + 1)); 29759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta ib.put((short) (topPlaneStart + sample)); 29859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta ib.put((short) (topPlaneStart + sample + 1)); 29959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 30059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 30159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 30259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 30359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta // pole triangles 30459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta int bottomPlaneStart = (planes - 2) * (radialSamples + 1); 30559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta for (int samples = 0; samples < radialSamples; samples++, index += 3) { 30659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (insideView){ 30759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta ib.put((short) (bottomPlaneStart + samples)); 30859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta ib.put((short) (bottomPlaneStart + samples + 1)); 30959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta ib.put((short) (vertCount - 1)); 31059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta }else{ 31159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta ib.put((short) (bottomPlaneStart + samples)); 31259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta ib.put((short) (vertCount - 1)); 31359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta ib.put((short) (bottomPlaneStart + samples + 1)); 31459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 31559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 31659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 31759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta updateBound(); 31859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 31959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 32059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta @Override 32159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public void read(JmeImporter e) throws IOException { 32259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta super.read(e); 32359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta InputCapsule capsule = e.getCapsule(this); 32459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta planes = capsule.readInt("planes", 0); 32559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta radialSamples = capsule.readInt("radialSamples", 0); 32659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta radius = capsule.readFloat("radius", 0); 32759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta center = (Vector3f) capsule.readSavable("center", Vector3f.ZERO.clone()); 32859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 32959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 33059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta @Override 33159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public void write(JmeExporter e) throws IOException { 33259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta super.write(e); 33359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta OutputCapsule capsule = e.getCapsule(this); 33459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta capsule.write(planes, "planes", 0); 33559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta capsule.write(radialSamples, "radialSamples", 0); 33659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta capsule.write(radius, "radius", 0); 33759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta capsule.write(center, "center", Vector3f.ZERO); 33859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 33959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta}