--- /dev/null
+/*
+ * 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.stress;
+
+import com.jme3.app.SimpleApplication;
+import com.jme3.input.KeyInput;
+import com.jme3.light.DirectionalLight;
+import com.jme3.material.Material;
+import com.jme3.math.Quaternion;
+import com.jme3.math.Vector3f;
+import com.jme3.scene.Geometry;
+import com.jme3.scene.Node;
+import com.jme3.scene.control.LodControl;
+import jme3tools.optimize.GeometryBatchFactory;
+
+public class TestBatchLod extends SimpleApplication {
+
+ private boolean lod = false;
+
+ public static void main(String[] args) {
+ TestBatchLod app = new TestBatchLod();
+ app.start();
+ }
+
+ public void simpleInitApp() {
+// inputManager.registerKeyBinding("USELOD", KeyInput.KEY_L);
+
+ DirectionalLight dl = new DirectionalLight();
+ dl.setDirection(new Vector3f(-1, -1, -1).normalizeLocal());
+ rootNode.addLight(dl);
+
+ Node teapotNode = (Node) assetManager.loadModel("Models/Teapot/Teapot.mesh.xml");
+ Geometry teapot = (Geometry) teapotNode.getChild(0);
+
+ Material mat = new Material(assetManager, "Common/MatDefs/Light/Lighting.j3md");
+ mat.setFloat("Shininess", 16f);
+ mat.setBoolean("VertexLighting", true);
+ teapot.setMaterial(mat);
+
+ // show normals as material
+ //Material mat = new Material(assetManager, "Common/MatDefs/Misc/ShowNormals.j3md");
+ flyCam.setMoveSpeed(5);
+ for (int y = -5; y < 5; y++) {
+ for (int x = -5; x < 5; x++) {
+ Geometry clonePot = teapot.clone();
+
+ //clonePot.setMaterial(mat);
+ clonePot.setLocalTranslation(x * .5f, 0, y * .5f);
+ clonePot.setLocalScale(.15f);
+ clonePot.setMaterial(mat);
+ rootNode.attachChild(clonePot);
+ }
+ }
+ GeometryBatchFactory.optimize(rootNode, true);
+ LodControl control = new LodControl();
+ rootNode.getChild(0).addControl(control);
+ cam.setLocation(new Vector3f(-1.0748308f, 1.35778f, -1.5380064f));
+ cam.setRotation(new Quaternion(0.18343268f, 0.34531063f, -0.069015436f, 0.9177962f));
+
+ }
+}
package jme3tools.optimize;
-import com.jme3.font.BitmapText;
import com.jme3.material.Material;
-import com.jme3.math.FastMath;
import com.jme3.math.Matrix4f;
import com.jme3.math.Vector3f;
import com.jme3.scene.Geometry;
import com.jme3.scene.mesh.IndexBuffer;
import com.jme3.scene.mesh.VirtualIndexBuffer;
import com.jme3.scene.mesh.WrappedIndexBuffer;
-import com.jme3.scene.shape.Quad;
+import com.jme3.util.BufferUtils;
import com.jme3.util.IntMap.Entry;
import java.nio.Buffer;
import java.nio.FloatBuffer;
+import java.nio.ShortBuffer;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
public class GeometryBatchFactory {
- private static void doTransformVerts(FloatBuffer inBuf, int offset, FloatBuffer outBuf, Matrix4f transform){
+ private static void doTransformVerts(FloatBuffer inBuf, int offset, FloatBuffer outBuf, Matrix4f transform) {
Vector3f pos = new Vector3f();
// offset is given in element units
// convert to be in component units
offset *= 3;
- for (int i = 0; i < inBuf.capacity()/3; i++){
- pos.x = inBuf.get(i*3+0);
- pos.y = inBuf.get(i*3+1);
- pos.z = inBuf.get(i*3+2);
+ for (int i = 0; i < inBuf.capacity() / 3; i++) {
+ pos.x = inBuf.get(i * 3 + 0);
+ pos.y = inBuf.get(i * 3 + 1);
+ pos.z = inBuf.get(i * 3 + 2);
transform.mult(pos, pos);
- outBuf.put(offset+i*3+0, pos.x);
- outBuf.put(offset+i*3+1, pos.y);
- outBuf.put(offset+i*3+2, pos.z);
+ outBuf.put(offset + i * 3 + 0, pos.x);
+ outBuf.put(offset + i * 3 + 1, pos.y);
+ outBuf.put(offset + i * 3 + 2, pos.z);
}
}
- private static void doTransformNorms(FloatBuffer inBuf, int offset, FloatBuffer outBuf, Matrix4f transform){
+ private static void doTransformNorms(FloatBuffer inBuf, int offset, FloatBuffer outBuf, Matrix4f transform) {
Vector3f norm = new Vector3f();
// offset is given in element units
// convert to be in component units
offset *= 3;
- for (int i = 0; i < inBuf.capacity()/3; i++){
- norm.x = inBuf.get(i*3+0);
- norm.y = inBuf.get(i*3+1);
- norm.z = inBuf.get(i*3+2);
+ for (int i = 0; i < inBuf.capacity() / 3; i++) {
+ norm.x = inBuf.get(i * 3 + 0);
+ norm.y = inBuf.get(i * 3 + 1);
+ norm.z = inBuf.get(i * 3 + 2);
transform.multNormal(norm, norm);
- outBuf.put(offset+i*3+0, norm.x);
- outBuf.put(offset+i*3+1, norm.y);
- outBuf.put(offset+i*3+2, norm.z);
+ outBuf.put(offset + i * 3 + 0, norm.x);
+ outBuf.put(offset + i * 3 + 1, norm.y);
+ outBuf.put(offset + i * 3 + 2, norm.z);
}
}
* @param geometries
* @param outMesh
*/
- public static void mergeGeometries(Collection<Geometry> geometries, Mesh outMesh){
+ public static void mergeGeometries(Collection<Geometry> geometries, Mesh outMesh) {
int[] compsForBuf = new int[VertexBuffer.Type.values().length];
Format[] formatForBuf = new Format[compsForBuf.length];
int totalVerts = 0;
- int totalTris = 0;
+ int totalTris = 0;
int totalLodLevels = 0;
Mode mode = null;
- for (Geometry geom : geometries){
+ for (Geometry geom : geometries) {
totalVerts += geom.getVertexCount();
- totalTris += geom.getTriangleCount();
+ totalTris += geom.getTriangleCount();
totalLodLevels = Math.min(totalLodLevels, geom.getMesh().getNumLodLevels());
Mode listMode;
int components;
- switch (geom.getMesh().getMode()){
+ switch (geom.getMesh().getMode()) {
case Points:
listMode = Mode.Points;
components = 1;
default:
throw new UnsupportedOperationException();
}
-
- for (Entry<VertexBuffer> entry : geom.getMesh().getBuffers()){
+
+ for (Entry<VertexBuffer> entry : geom.getMesh().getBuffers()) {
compsForBuf[entry.getKey()] = entry.getValue().getNumComponents();
formatForBuf[entry.getKey()] = entry.getValue().getFormat();
}
- if (mode != null && mode != listMode){
+ if (mode != null && mode != listMode) {
throw new UnsupportedOperationException("Cannot combine different"
- + " primitive types: " + mode + " != " + listMode);
+ + " primitive types: " + mode + " != " + listMode);
}
mode = listMode;
compsForBuf[Type.Index.ordinal()] = components;
}
outMesh.setMode(mode);
- if (totalVerts >= 65536){
+ if (totalVerts >= 65536) {
// make sure we create an UnsignedInt buffer so
// we can fit all of the meshes
formatForBuf[Type.Index.ordinal()] = Format.UnsignedInt;
- }else{
+ } else {
formatForBuf[Type.Index.ordinal()] = Format.UnsignedShort;
}
// generate output buffers based on retrieved info
- for (int i = 0; i < compsForBuf.length; i++){
- if (compsForBuf[i] == 0)
+ for (int i = 0; i < compsForBuf.length; i++) {
+ if (compsForBuf[i] == 0) {
continue;
+ }
Buffer data;
- if (i == Type.Index.ordinal()){
+ if (i == Type.Index.ordinal()) {
data = VertexBuffer.createBuffer(formatForBuf[i], compsForBuf[i], totalTris);
- }else{
+ } else {
data = VertexBuffer.createBuffer(formatForBuf[i], compsForBuf[i], totalVerts);
}
}
int globalVertIndex = 0;
- int globalTriIndex = 0;
+ int globalTriIndex = 0;
- for (Geometry geom : geometries){
+ for (Geometry geom : geometries) {
Mesh inMesh = geom.getMesh();
geom.computeWorldMatrix();
Matrix4f worldMatrix = geom.getWorldMatrix();
int geomVertCount = inMesh.getVertexCount();
- int geomTriCount = inMesh.getTriangleCount();
+ int geomTriCount = inMesh.getTriangleCount();
- for (int bufType = 0; bufType < compsForBuf.length; bufType++){
+ for (int bufType = 0; bufType < compsForBuf.length; bufType++) {
VertexBuffer inBuf = inMesh.getBuffer(Type.values()[bufType]);
VertexBuffer outBuf = outMesh.getBuffer(Type.values()[bufType]);
- if (outBuf == null)
+ if (outBuf == null) {
continue;
+ }
- if (Type.Index.ordinal() == bufType){
+ if (Type.Index.ordinal() == bufType) {
int components = compsForBuf[bufType];
IndexBuffer inIdx = inMesh.getIndexBuffer();
- if (inIdx == null){
+ if (inIdx == null) {
inIdx = new VirtualIndexBuffer(geomVertCount, inMesh.getMode());
- }else if (inMesh.getMode() != mode){
+ } else if (inMesh.getMode() != mode) {
inIdx = new WrappedIndexBuffer(inMesh);
}
IndexBuffer outIdx = outMesh.getIndexBuffer();
- for (int tri = 0; tri < geomTriCount; tri++){
- for (int comp = 0; comp < components; comp++){
- int idx = inIdx.get(tri*components+comp) + globalVertIndex;
+ for (int tri = 0; tri < geomTriCount; tri++) {
+ for (int comp = 0; comp < components; comp++) {
+ int idx = inIdx.get(tri * components + comp) + globalVertIndex;
outIdx.put((globalTriIndex + tri) * components + comp, idx);
}
}
- }else if (Type.Position.ordinal() == bufType){
+ } else if (Type.Position.ordinal() == bufType) {
FloatBuffer inPos = (FloatBuffer) inBuf.getData();
FloatBuffer outPos = (FloatBuffer) outBuf.getData();
doTransformVerts(inPos, globalVertIndex, outPos, worldMatrix);
- }else if (Type.Normal.ordinal() == bufType || Type.Tangent.ordinal() == bufType){
+ } else if (Type.Normal.ordinal() == bufType || Type.Tangent.ordinal() == bufType) {
FloatBuffer inPos = (FloatBuffer) inBuf.getData();
FloatBuffer outPos = (FloatBuffer) outBuf.getData();
doTransformNorms(inPos, globalVertIndex, outPos, worldMatrix);
- }else{
- for (int vert = 0; vert < geomVertCount; vert++){
+ } else {
+ for (int vert = 0; vert < geomVertCount; vert++) {
int curGlobalVertIndex = globalVertIndex + vert;
inBuf.copyElement(vert, outBuf, curGlobalVertIndex);
}
}
globalVertIndex += geomVertCount;
- globalTriIndex += geomTriCount;
+ globalTriIndex += geomTriCount;
}
}
+ public static void makeLods(Collection<Geometry> geometries, Mesh outMesh) {
+ int lodLevels = 0;
+ int[] lodSize = null;
+ int index = 0;
+ for (Geometry g : geometries) {
+ if (lodLevels == 0) {
+ lodLevels = g.getMesh().getNumLodLevels();
+ }
+ if (lodSize == null) {
+ lodSize = new int[lodLevels];
+ }
+ for (int i = 0; i < lodLevels; i++) {
+ lodSize[i] += g.getMesh().getLodLevel(i).getData().capacity();
+ //if( i == 0) System.out.println(index + " " +lodSize[i]);
+ }
+ index++;
+ }
+ int[][] lodData = new int[lodLevels][];
+ for (int i = 0; i < lodLevels; i++) {
+ lodData[i] = new int[lodSize[i]];
+ }
+ VertexBuffer[] lods = new VertexBuffer[lodLevels];
+ int bufferPos[] = new int[lodLevels];
+ //int index = 0;
+ int numOfVertices = 0;
+ int curGeom = 0;
+ for (Geometry g : geometries) {
+ if (numOfVertices == 0) {
+ numOfVertices = g.getVertexCount();
+ }
+ for (int i = 0; i < lodLevels; i++) {
+ ShortBuffer buffer = (ShortBuffer) g.getMesh().getLodLevel(i).getData();
+ buffer.rewind();
+ //System.out.println("buffer: " + buffer.capacity() + " limit: " + lodSize[i] + " " + index);
+ for (int j = 0; j < buffer.capacity(); j++) {
+ lodData[i][bufferPos[i] + j] = buffer.get() + numOfVertices * curGeom;
+ //bufferPos[i]++;
+ }
+ bufferPos[i] += buffer.capacity();
+ }
+ curGeom++;
+ }
+ for (int i = 0; i < lodLevels; i++) {
+ lods[i] = new VertexBuffer(Type.Index);
+ lods[i].setupData(Usage.Dynamic, 1, Format.UnsignedInt, BufferUtils.createIntBuffer(lodData[i]));
+ }
+ System.out.println(lods.length);
+ outMesh.setLodLevels(lods);
+ }
+
+ public static List<Geometry> makeBatches(Collection<Geometry> geometries) {
+ return makeBatches(geometries, false);
+ }
/**
* Batches a collection of Geometries so that all with the same material get combined.
* @param geometries The Geometries to combine
* @return A List of newly created Geometries, each with a distinct material
*/
- public static List<Geometry> makeBatches(Collection<Geometry> geometries){
+ public static List<Geometry> makeBatches(Collection<Geometry> geometries, boolean useLods) {
ArrayList<Geometry> retVal = new ArrayList<Geometry>();
HashMap<Material, List<Geometry>> matToGeom = new HashMap<Material, List<Geometry>>();
- for (Geometry geom : geometries){
+ for (Geometry geom : geometries) {
List<Geometry> outList = matToGeom.get(geom.getMaterial());
- if (outList == null){
+ if (outList == null) {
outList = new ArrayList<Geometry>();
matToGeom.put(geom.getMaterial(), outList);
}
}
int batchNum = 0;
- for (Map.Entry<Material, List<Geometry>> entry : matToGeom.entrySet()){
+ for (Map.Entry<Material, List<Geometry>> entry : matToGeom.entrySet()) {
Material mat = entry.getKey();
List<Geometry> geomsForMat = entry.getValue();
Mesh mesh = new Mesh();
mergeGeometries(geomsForMat, mesh);
+ // lods
+ if (useLods) {
+ makeLods(geomsForMat, mesh);
+ }
mesh.updateCounts();
mesh.updateBound();
return retVal;
}
- private static void gatherGeoms(Spatial scene, List<Geometry> geoms){
- if (scene instanceof Node){
+ private static void gatherGeoms(Spatial scene, List<Geometry> geoms) {
+ if (scene instanceof Node) {
Node node = (Node) scene;
- for (Spatial child : node.getChildren()){
+ for (Spatial child : node.getChildren()) {
gatherGeoms(child, geoms);
}
- }else if (scene instanceof Geometry){
- geoms.add((Geometry)scene);
+ } else if (scene instanceof Geometry) {
+ geoms.add((Geometry) scene);
}
}
* @param scene The scene to optimize
* @return The newly created optimized geometries attached to a node
*/
- public static Node optimize(Node scene){
+ public static Spatial optimize(Node scene) {
+ return optimize(scene, false);
+ }
+
+ /**
+ * Optimizes a scene by combining Geometry with the same material.
+ * All Geometries found in the scene are detached from their parent and
+ * a new Node containing the optimized Geometries is attached.
+ * @param scene The scene to optimize
+ * @param useLods true if you want the resulting geometry to keep lod information
+ * @return The newly created optimized geometries attached to a node
+ */
+ public static Node optimize(Node scene, boolean useLods) {
ArrayList<Geometry> geoms = new ArrayList<Geometry>();
+
gatherGeoms(scene, geoms);
- List<Geometry> batchedGeoms = makeBatches(geoms);
- for (Geometry geom : batchedGeoms){
+ List<Geometry> batchedGeoms = makeBatches(geoms, useLods);
+ for (Geometry geom : batchedGeoms) {
scene.attachChild(geom);
}
return scene;
}
- public static void printMesh(Mesh mesh){
- for (int bufType = 0; bufType < Type.values().length; bufType++){
+ public static void printMesh(Mesh mesh) {
+ for (int bufType = 0; bufType < Type.values().length; bufType++) {
VertexBuffer outBuf = mesh.getBuffer(Type.values()[bufType]);
- if (outBuf == null)
+ if (outBuf == null) {
continue;
+ }
System.out.println(outBuf.getBufferType() + ": ");
- for (int vert = 0; vert < outBuf.getNumElements(); vert++){
+ for (int vert = 0; vert < outBuf.getNumElements(); vert++) {
String str = "[";
- for (int comp = 0; comp < outBuf.getNumComponents(); comp++){
+ for (int comp = 0; comp < outBuf.getNumComponents(); comp++) {
Object val = outBuf.getElementComponent(vert, comp);
outBuf.setElementComponent(vert, comp, val);
val = outBuf.getElementComponent(vert, comp);
str += val;
- if (comp != outBuf.getNumComponents()-1)
+ if (comp != outBuf.getNumComponents() - 1) {
str += ", ";
+ }
}
str += "]";
System.out.println(str);
}
}
- public static void main(String[] args){
+ public static void main(String[] args) {
Mesh mesh = new Mesh();
mesh.setBuffer(Type.Position, 3, new float[]{
- 0, 0, 0,
- 1, 0, 0,
- 1, 1, 0,
- 0, 1, 0
- });
+ 0, 0, 0,
+ 1, 0, 0,
+ 1, 1, 0,
+ 0, 1, 0
+ });
mesh.setBuffer(Type.Index, 2, new short[]{
- 0, 1,
- 1, 2,
- 2, 3,
- 3, 0
- });
+ 0, 1,
+ 1, 2,
+ 2, 3,
+ 3, 0
+ });
Geometry g1 = new Geometry("g1", mesh);
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