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 3359b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartapackage jme3tools.converters.model; 3459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 3559b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport com.jme3.bounding.BoundingBox; 3659b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport com.jme3.math.Transform; 3759b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport com.jme3.math.Vector2f; 3859b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport com.jme3.math.Vector3f; 3959b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport com.jme3.scene.Geometry; 4059b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport com.jme3.scene.Mesh; 4159b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport com.jme3.scene.VertexBuffer; 4259b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport com.jme3.scene.VertexBuffer.Format; 4359b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport com.jme3.scene.VertexBuffer.Type; 4459b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport com.jme3.scene.VertexBuffer.Usage; 4559b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport com.jme3.scene.mesh.IndexBuffer; 4659b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport com.jme3.util.BufferUtils; 4759b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport java.nio.*; 4859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 4959b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartapublic class FloatToFixed { 5059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 5159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta private static final float shortSize = Short.MAX_VALUE - Short.MIN_VALUE; 5259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta private static final float shortOff = (Short.MAX_VALUE + Short.MIN_VALUE) * 0.5f; 5359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 5459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta private static final float byteSize = Byte.MAX_VALUE - Byte.MIN_VALUE; 5559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta private static final float byteOff = (Byte.MAX_VALUE + Byte.MIN_VALUE) * 0.5f; 5659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 5759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public static void convertToFixed(Geometry geom, Format posFmt, Format nmFmt, Format tcFmt){ 5859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta geom.updateModelBound(); 5959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta BoundingBox bbox = (BoundingBox) geom.getModelBound(); 6059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta Mesh mesh = geom.getMesh(); 6159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 6259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta VertexBuffer positions = mesh.getBuffer(Type.Position); 6359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta VertexBuffer normals = mesh.getBuffer(Type.Normal); 6459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta VertexBuffer texcoords = mesh.getBuffer(Type.TexCoord); 6559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta VertexBuffer indices = mesh.getBuffer(Type.Index); 6659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 6759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta // positions 6859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta FloatBuffer fb = (FloatBuffer) positions.getData(); 6959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (posFmt != Format.Float){ 7059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta Buffer newBuf = VertexBuffer.createBuffer(posFmt, positions.getNumComponents(), 7159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta mesh.getVertexCount()); 7259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta Transform t = convertPositions(fb, bbox, newBuf); 7359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta t.combineWithParent(geom.getLocalTransform()); 7459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta geom.setLocalTransform(t); 7559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 7659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta VertexBuffer newPosVb = new VertexBuffer(Type.Position); 7759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta newPosVb.setupData(positions.getUsage(), 7859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta positions.getNumComponents(), 7959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta posFmt, 8059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta newBuf); 8159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta mesh.clearBuffer(Type.Position); 8259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta mesh.setBuffer(newPosVb); 8359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 8459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 8559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta // normals, automatically convert to signed byte 8659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta fb = (FloatBuffer) normals.getData(); 8759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 8859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta ByteBuffer bb = BufferUtils.createByteBuffer(fb.capacity()); 8959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta convertNormals(fb, bb); 9059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 9159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta normals = new VertexBuffer(Type.Normal); 9259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta normals.setupData(Usage.Static, 3, Format.Byte, bb); 9359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta normals.setNormalized(true); 9459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta mesh.clearBuffer(Type.Normal); 9559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta mesh.setBuffer(normals); 9659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 9759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta // texcoords 9859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta fb = (FloatBuffer) texcoords.getData(); 9959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (tcFmt != Format.Float){ 10059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta Buffer newBuf = VertexBuffer.createBuffer(tcFmt, 10159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta texcoords.getNumComponents(), 10259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta mesh.getVertexCount()); 10359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta convertTexCoords2D(fb, newBuf); 10459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 10559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta VertexBuffer newTcVb = new VertexBuffer(Type.TexCoord); 10659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta newTcVb.setupData(texcoords.getUsage(), 10759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta texcoords.getNumComponents(), 10859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta tcFmt, 10959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta newBuf); 11059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta mesh.clearBuffer(Type.TexCoord); 11159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta mesh.setBuffer(newTcVb); 11259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 11359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 11459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 11559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public static void compressIndexBuffer(Mesh mesh){ 11659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta int vertCount = mesh.getVertexCount(); 11759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta VertexBuffer vb = mesh.getBuffer(Type.Index); 11859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta Format targetFmt; 11959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (vb.getFormat() == Format.UnsignedInt && vertCount <= 0xffff){ 12059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (vertCount <= 256) 12159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta targetFmt = Format.UnsignedByte; 12259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta else 12359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta targetFmt = Format.UnsignedShort; 12459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta }else if (vb.getFormat() == Format.UnsignedShort && vertCount <= 0xff){ 12559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta targetFmt = Format.UnsignedByte; 12659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta }else{ 12759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return; 12859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 12959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 13059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta IndexBuffer src = mesh.getIndexBuffer(); 13159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta Buffer newBuf = VertexBuffer.createBuffer(targetFmt, vb.getNumComponents(), src.size()); 13259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 13359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta VertexBuffer newVb = new VertexBuffer(Type.Index); 13459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta newVb.setupData(vb.getUsage(), vb.getNumComponents(), targetFmt, newBuf); 13559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta mesh.clearBuffer(Type.Index); 13659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta mesh.setBuffer(newVb); 13759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 13859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta IndexBuffer dst = mesh.getIndexBuffer(); 13959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta for (int i = 0; i < src.size(); i++){ 14059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta dst.put(i, src.get(i)); 14159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 14259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 14359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 14459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta private static void convertToFixed(FloatBuffer input, IntBuffer output){ 14559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (output.capacity() < input.capacity()) 14659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta throw new RuntimeException("Output must be at least as large as input!"); 14759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 14859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta input.clear(); 14959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta output.clear(); 15059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta for (int i = 0; i < input.capacity(); i++){ 15159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta output.put( (int) (input.get() * (float)(1<<16)) ); 15259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 15359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta output.flip(); 15459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 15559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 15659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta private static void convertToFloat(IntBuffer input, FloatBuffer output){ 15759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (output.capacity() < input.capacity()) 15859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta throw new RuntimeException("Output must be at least as large as input!"); 15959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 16059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta input.clear(); 16159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta output.clear(); 16259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta for (int i = 0; i < input.capacity(); i++){ 16359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta output.put( ((float)input.get() / (float)(1<<16)) ); 16459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 16559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta output.flip(); 16659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 16759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 16859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta private static void convertToUByte(FloatBuffer input, ByteBuffer output){ 16959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (output.capacity() < input.capacity()) 17059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta throw new RuntimeException("Output must be at least as large as input!"); 17159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 17259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta input.clear(); 17359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta output.clear(); 17459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta for (int i = 0; i < input.capacity(); i++){ 17559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta output.put( (byte) (input.get() * 255f) ); 17659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 17759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta output.flip(); 17859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 17959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 18059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 18159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public static VertexBuffer convertToUByte(VertexBuffer vb){ 18259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta FloatBuffer fb = (FloatBuffer) vb.getData(); 18359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta ByteBuffer bb = BufferUtils.createByteBuffer(fb.capacity()); 18459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta convertToUByte(fb, bb); 18559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 18659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta VertexBuffer newVb = new VertexBuffer(vb.getBufferType()); 18759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta newVb.setupData(vb.getUsage(), 18859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta vb.getNumComponents(), 18959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta Format.UnsignedByte, 19059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta bb); 19159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta newVb.setNormalized(true); 19259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return newVb; 19359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 19459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 19559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public static VertexBuffer convertToFixed(VertexBuffer vb){ 19659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (vb.getFormat() == Format.Int) 19759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return vb; 19859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 19959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta FloatBuffer fb = (FloatBuffer) vb.getData(); 20059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta IntBuffer ib = BufferUtils.createIntBuffer(fb.capacity()); 20159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta convertToFixed(fb, ib); 20259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 20359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta VertexBuffer newVb = new VertexBuffer(vb.getBufferType()); 20459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta newVb.setupData(vb.getUsage(), 20559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta vb.getNumComponents(), 20659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta Format.Int, 20759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta ib); 20859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return newVb; 20959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 21059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 21159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public static VertexBuffer convertToFloat(VertexBuffer vb){ 21259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (vb.getFormat() == Format.Float) 21359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return vb; 21459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 21559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta IntBuffer ib = (IntBuffer) vb.getData(); 21659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta FloatBuffer fb = BufferUtils.createFloatBuffer(ib.capacity()); 21759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta convertToFloat(ib, fb); 21859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 21959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta VertexBuffer newVb = new VertexBuffer(vb.getBufferType()); 22059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta newVb.setupData(vb.getUsage(), 22159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta vb.getNumComponents(), 22259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta Format.Float, 22359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta fb); 22459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return newVb; 22559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 22659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 22759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta private static void convertNormals(FloatBuffer input, ByteBuffer output){ 22859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (output.capacity() < input.capacity()) 22959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta throw new RuntimeException("Output must be at least as large as input!"); 23059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 23159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta input.clear(); 23259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta output.clear(); 23359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta Vector3f temp = new Vector3f(); 23459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta int vertexCount = input.capacity() / 3; 23559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta for (int i = 0; i < vertexCount; i++){ 23659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta BufferUtils.populateFromBuffer(temp, input, i); 23759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 23859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta // offset and scale vector into -128 ... 127 23959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta temp.multLocal(127).addLocal(0.5f, 0.5f, 0.5f); 24059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 24159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta // quantize 24259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta byte v1 = (byte) temp.getX(); 24359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta byte v2 = (byte) temp.getY(); 24459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta byte v3 = (byte) temp.getZ(); 24559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 24659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta // store 24759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta output.put(v1).put(v2).put(v3); 24859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 24959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 25059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 25159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta private static void convertTexCoords2D(FloatBuffer input, Buffer output){ 25259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (output.capacity() < input.capacity()) 25359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta throw new RuntimeException("Output must be at least as large as input!"); 25459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 25559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta input.clear(); 25659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta output.clear(); 25759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta Vector2f temp = new Vector2f(); 25859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta int vertexCount = input.capacity() / 2; 25959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 26059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta ShortBuffer sb = null; 26159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta IntBuffer ib = null; 26259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 26359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (output instanceof ShortBuffer) 26459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta sb = (ShortBuffer) output; 26559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta else if (output instanceof IntBuffer) 26659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta ib = (IntBuffer) output; 26759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta else 26859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta throw new UnsupportedOperationException(); 26959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 27059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta for (int i = 0; i < vertexCount; i++){ 27159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta BufferUtils.populateFromBuffer(temp, input, i); 27259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 27359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (sb != null){ 27459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta sb.put( (short) (temp.getX()*Short.MAX_VALUE) ); 27559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta sb.put( (short) (temp.getY()*Short.MAX_VALUE) ); 27659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta }else{ 27759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta int v1 = (int) (temp.getX() * ((float)(1 << 16))); 27859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta int v2 = (int) (temp.getY() * ((float)(1 << 16))); 27959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta ib.put(v1).put(v2); 28059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 28159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 28259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 28359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 28459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta private static Transform convertPositions(FloatBuffer input, BoundingBox bbox, Buffer output){ 28559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (output.capacity() < input.capacity()) 28659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta throw new RuntimeException("Output must be at least as large as input!"); 28759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 28859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta Vector3f offset = bbox.getCenter().negate(); 28959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta Vector3f size = new Vector3f(bbox.getXExtent(), bbox.getYExtent(), bbox.getZExtent()); 29059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta size.multLocal(2); 29159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 29259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta ShortBuffer sb = null; 29359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta ByteBuffer bb = null; 29459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta float dataTypeSize; 29559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta float dataTypeOffset; 29659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (output instanceof ShortBuffer){ 29759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta sb = (ShortBuffer) output; 29859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta dataTypeOffset = shortOff; 29959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta dataTypeSize = shortSize; 30059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta }else{ 30159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta bb = (ByteBuffer) output; 30259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta dataTypeOffset = byteOff; 30359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta dataTypeSize = byteSize; 30459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 30559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta Vector3f scale = new Vector3f(); 30659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta scale.set(dataTypeSize, dataTypeSize, dataTypeSize).divideLocal(size); 30759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 30859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta Vector3f invScale = new Vector3f(); 30959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta invScale.set(size).divideLocal(dataTypeSize); 31059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 31159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta offset.multLocal(scale); 31259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta offset.addLocal(dataTypeOffset, dataTypeOffset, dataTypeOffset); 31359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 31459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta // offset = (-modelOffset * shortSize)/modelSize + shortOff 31559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta // scale = shortSize / modelSize 31659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 31759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta input.clear(); 31859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta output.clear(); 31959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta Vector3f temp = new Vector3f(); 32059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta int vertexCount = input.capacity() / 3; 32159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta for (int i = 0; i < vertexCount; i++){ 32259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta BufferUtils.populateFromBuffer(temp, input, i); 32359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 32459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta // offset and scale vector into -32768 ... 32767 32559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta // or into -128 ... 127 if using bytes 32659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta temp.multLocal(scale); 32759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta temp.addLocal(offset); 32859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 32959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta // quantize and store 33059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (sb != null){ 33159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta short v1 = (short) temp.getX(); 33259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta short v2 = (short) temp.getY(); 33359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta short v3 = (short) temp.getZ(); 33459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta sb.put(v1).put(v2).put(v3); 33559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta }else{ 33659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta byte v1 = (byte) temp.getX(); 33759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta byte v2 = (byte) temp.getY(); 33859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta byte v3 = (byte) temp.getZ(); 33959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta bb.put(v1).put(v2).put(v3); 34059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 34159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 34259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 34359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta Transform transform = new Transform(); 34459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta transform.setTranslation(offset.negate().multLocal(invScale)); 34559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta transform.setScale(invScale); 34659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return transform; 34759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 34859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 34959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta} 350