/* | |
* Copyright (c) 2009-2010 jMonkeyEngine | |
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* * Redistributions in binary form must reproduce the above copyright | |
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* * Neither the name of 'jMonkeyEngine' nor the names of its contributors | |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
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package com.jme3.bullet.util; | |
import com.jme3.scene.Mesh; | |
import com.jme3.scene.VertexBuffer.Type; | |
import com.jme3.scene.mesh.IndexBuffer; | |
import com.jme3.util.BufferUtils; | |
import java.nio.ByteBuffer; | |
import java.nio.FloatBuffer; | |
/** | |
* | |
* @author normenhansen | |
*/ | |
public class NativeMeshUtil { | |
public static long getTriangleIndexVertexArray(Mesh mesh){ | |
ByteBuffer triangleIndexBase = BufferUtils.createByteBuffer(mesh.getTriangleCount() * 3 * 4); | |
ByteBuffer vertexBase = BufferUtils.createByteBuffer(mesh.getVertexCount() * 3 * 4); | |
int numVertices = mesh.getVertexCount(); | |
int vertexStride = 12; //3 verts * 4 bytes per. | |
int numTriangles = mesh.getTriangleCount(); | |
int triangleIndexStride = 12; //3 index entries * 4 bytes each. | |
IndexBuffer indices = mesh.getIndicesAsList(); | |
FloatBuffer vertices = mesh.getFloatBuffer(Type.Position); | |
vertices.rewind(); | |
int verticesLength = mesh.getVertexCount() * 3; | |
for (int i = 0; i < verticesLength; i++) { | |
float tempFloat = vertices.get(); | |
vertexBase.putFloat(tempFloat); | |
} | |
int indicesLength = mesh.getTriangleCount() * 3; | |
for (int i = 0; i < indicesLength; i++) { | |
triangleIndexBase.putInt(indices.get(i)); | |
} | |
vertices.rewind(); | |
vertices.clear(); | |
return createTriangleIndexVertexArray(triangleIndexBase, vertexBase, numTriangles, numVertices, vertexStride, triangleIndexStride); | |
} | |
public static native long createTriangleIndexVertexArray(ByteBuffer triangleIndexBase, ByteBuffer vertexBase, int numTraingles, int numVertices, int vertextStride, int triangleIndexStride); | |
} |