/**
* Copyright (c) 2008-2012 Ardor Labs, Inc.
*
* This file is part of Ardor3D.
*
* Ardor3D is free software: you can redistribute it and/or modify it
* under the terms of its license which may be found in the accompanying
* LICENSE file or at <http://www.ardor3d.com/LICENSE>.
*/
package com.ardor3d.example.renderer;
import java.nio.FloatBuffer;
import com.ardor3d.example.ExampleBase;
import com.ardor3d.example.Purpose;
import com.ardor3d.intersection.PickData;
import com.ardor3d.intersection.PrimitivePickResults;
import com.ardor3d.math.Vector3;
import com.ardor3d.renderer.IndexMode;
import com.ardor3d.scenegraph.IndexBufferData;
import com.ardor3d.scenegraph.Mesh;
import com.ardor3d.scenegraph.MeshData;
import com.ardor3d.util.geom.BufferUtils;
/**
* Illustrates mesh with several primitives (i.e. strip, quad, triangle).
*/
@Purpose(htmlDescriptionKey = "com.ardor3d.example.renderer.MultiStripExample", //
thumbnailPath = "com/ardor3d/example/media/thumbnails/renderer_MultiStripExample.jpg", //
maxHeapMemory = 64)
public class MultiStripExample extends ExampleBase {
public static void main(final String[] args) {
start(MultiStripExample.class);
}
@Override
protected void processPicks(final PrimitivePickResults pickResults) {
int i = 0;
while (pickResults.getNumber() > 0
&& pickResults.getPickData(i).getIntersectionRecord().getNumberOfIntersections() == 0
&& ++i < pickResults.getNumber()) {
}
if (pickResults.getNumber() > i) {
final PickData pick = pickResults.getPickData(i);
final int section = pick.getIntersectionRecord().getIntersectionPrimitive(0).getSection();
if (pick.getTarget() instanceof Mesh) {
final Mesh hit = (Mesh) pick.getTarget();
System.err.println("picked: " + hit + " section: " + section + " (type = "
+ hit.getMeshData().getIndexMode(section) + ") primitive: "
+ pick.getIntersectionRecord().getIntersectionPrimitive(0).getPrimitiveIndex());
}
} else {
System.err.println("picked: nothing");
}
}
/**
* Sets up a mesh with several sub primitives (strip, quad, triangle)
*/
@Override
protected void initExample() {
_canvas.setTitle("TestSharedMesh");
_canvas.getCanvasRenderer().getCamera().setLocation(new Vector3(0, 0, 90));
final Mesh mesh = new Mesh();
final MeshData meshData = mesh.getMeshData();
final FloatBuffer vertexBuffer = BufferUtils.createVector3Buffer(16);
vertexBuffer.put(-30).put(0).put(0);
vertexBuffer.put(-40).put(0).put(0);
vertexBuffer.put(-40).put(10).put(0);
vertexBuffer.put(-30).put(10).put(0);
vertexBuffer.put(-10).put(0).put(0);
vertexBuffer.put(-20).put(0).put(0);
vertexBuffer.put(-20).put(10).put(0);
vertexBuffer.put(-10).put(10).put(0);
vertexBuffer.put(10).put(0).put(0);
vertexBuffer.put(20).put(0).put(0);
vertexBuffer.put(20).put(10).put(0);
vertexBuffer.put(10).put(10).put(0);
vertexBuffer.put(30).put(0).put(0);
vertexBuffer.put(40).put(0).put(0);
vertexBuffer.put(40).put(10).put(0);
vertexBuffer.put(30).put(10).put(0);
meshData.setVertexBuffer(vertexBuffer);
final IndexBufferData<?> indices = BufferUtils.createIndexBufferData(18, vertexBuffer.capacity() - 1);
// Strips
indices.put(0).put(3).put(1).put(2);
indices.put(4).put(7).put(5).put(6);
// Quad
indices.put(8).put(9).put(10).put(11);
// Triangles
indices.put(12).put(13).put(15);
indices.put(13).put(14).put(15);
meshData.setIndices(indices);
// Setting sub primitive data
final int[] indexLengths = new int[] { 4, 4, 4, 6 };
meshData.setIndexLengths(indexLengths);
final IndexMode[] indexModes = new IndexMode[] { IndexMode.TriangleStrip, IndexMode.TriangleStrip,
IndexMode.Quads, IndexMode.Triangles };
meshData.setIndexModes(indexModes);
mesh.updateModelBound();
_root.attachChild(mesh);
}
}