com.jme3.scene.Mesh.getFloatBuffer()方法的使用及代码示例

x33g5p2x  于2022-01-25 转载在 其他  
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本文整理了Java中com.jme3.scene.Mesh.getFloatBuffer()方法的一些代码示例，展示了Mesh.getFloatBuffer()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Mesh.getFloatBuffer()方法的具体详情如下：
包路径：com.jme3.scene.Mesh
类名称：Mesh
方法名：getFloatBuffer

Mesh.getFloatBuffer介绍

[英]Get the VertexBuffer data stored on this mesh in float format.
[中]获取以浮点格式存储在此网格上的VertexBuffer数据。

代码示例

代码示例来源：origin: jMonkeyEngine/jmonkeyengine

public float getHeightmapHeight(float x, float z) {
  if (x < 0 || z < 0 || x >= size || z >= size)
    return 0;
  int idx = (int) (z * size + x);
  return getMesh().getFloatBuffer(Type.Position).get(idx*3+1); // 3 floats per entry (x,y,z), the +1 is to get the Y
}

代码示例来源：origin: jMonkeyEngine/jmonkeyengine

protected float[] getPoints(Mesh mesh) {
    FloatBuffer vertices = mesh.getFloatBuffer(Type.Position);
    vertices.rewind();
    int components = mesh.getVertexCount() * 3;
    float[] pointsArray = new float[components];
    for (int i = 0; i < components; i += 3) {
      pointsArray[i] = vertices.get();
      pointsArray[i + 1] = vertices.get();
      pointsArray[i + 2] = vertices.get();
    }
    return pointsArray;
  }
}

代码示例来源：origin: jMonkeyEngine/jmonkeyengine

public Vector2f getTex(float x, float z, Vector2f store) {
  if (x < 0 || z < 0 || x >= size || z >= size) {
    store.set(Vector2f.ZERO);
    return store;
  }
  int idx = (int) (z * size + x);
  return store.set(getMesh().getFloatBuffer(Type.TexCoord).get(idx*2),
           getMesh().getFloatBuffer(Type.TexCoord).get(idx*2+1) );
}

代码示例来源：origin: jMonkeyEngine/jmonkeyengine

/**
   * Copy the vertex positions from a JME mesh.
   *
   * @param mesh the mesh to read (not null)
   * @return a new array (not null, length a multiple of 3)
   */
  protected float[] getPoints(Mesh mesh) {
    FloatBuffer vertices = mesh.getFloatBuffer(Type.Position);
    vertices.rewind();
    int components = mesh.getVertexCount() * 3;
    float[] pointsArray = new float[components];
    for (int i = 0; i < components; i += 3) {
      pointsArray[i] = vertices.get();
      pointsArray[i + 1] = vertices.get();
      pointsArray[i + 2] = vertices.get();
    }
    return pointsArray;
  }
}

代码示例来源：origin: jMonkeyEngine/jmonkeyengine

@Override
public void setMeshes(List<Mesh> meshes) {
  this.vertices = new ArrayList<List<Vector3f>>(meshes.size());
  this.normals = new ArrayList<List<Vector3f>>(meshes.size());
  for (Mesh mesh : meshes) {
    Vector3f[] vertexTable = BufferUtils.getVector3Array(mesh.getFloatBuffer(Type.Position));
    int[] indices = new int[3];
    List<Vector3f> vertices = new ArrayList<Vector3f>(mesh.getTriangleCount() * 3);
    List<Vector3f> normals = new ArrayList<Vector3f>(mesh.getTriangleCount());
    for (int i = 0; i < mesh.getTriangleCount(); ++i) {
      mesh.getTriangle(i, indices);
      vertices.add(vertexTable[indices[0]]);
      vertices.add(vertexTable[indices[1]]);
      vertices.add(vertexTable[indices[2]]);
      normals.add(FastMath.computeNormal(vertexTable[indices[0]], vertexTable[indices[1]], vertexTable[indices[2]]));
    }
    this.vertices.add(vertices);
    this.normals.add(normals);
  }
}

代码示例来源：origin: jMonkeyEngine/jmonkeyengine

for (Mesh mesh : meshes) {
  float[] vertexTable = BufferUtils.getFloatArray(mesh.getFloatBuffer(Type.Position));
  float[] normalTable = BufferUtils.getFloatArray(mesh.getFloatBuffer(Type.Normal));

代码示例来源：origin: jMonkeyEngine/jmonkeyengine

private static Map<Integer, List<Float>> buildPointMapForMesh(Mesh mesh, Map<Integer, List<Float>> map) {
  FloatBuffer vertices = mesh.getFloatBuffer(Type.Position);
  ByteBuffer boneIndices = (ByteBuffer) mesh.getBuffer(Type.BoneIndex).getData();
  FloatBuffer boneWeight = (FloatBuffer) mesh.getBuffer(Type.BoneWeight).getData();

代码示例来源：origin: jMonkeyEngine/jmonkeyengine

private static Map<Integer, List<Float>> buildPointMapForMesh(Mesh mesh, Map<Integer, List<Float>> map) {
  FloatBuffer vertices = mesh.getFloatBuffer(Type.Position);
  ByteBuffer boneIndices = (ByteBuffer) mesh.getBuffer(Type.BoneIndex).getData();
  FloatBuffer boneWeight = (FloatBuffer) mesh.getBuffer(Type.BoneWeight).getData();

代码示例来源：origin: jMonkeyEngine/jmonkeyengine

public static Mesh convert(IndexedMesh mesh) {
  Mesh jmeMesh = new Mesh();
  jmeMesh.setBuffer(Type.Index, 3, BufferUtils.createShortBuffer(mesh.numTriangles * 3));
  jmeMesh.setBuffer(Type.Position, 3, BufferUtils.createFloatBuffer(mesh.numVertices * 3));
  IndexBuffer indicess = jmeMesh.getIndexBuffer();
  FloatBuffer vertices = jmeMesh.getFloatBuffer(Type.Position);
  for (int i = 0; i < mesh.numTriangles * 3; i++) {
    indicess.put(i, mesh.triangleIndexBase.getInt(i * 4));
  }
  for (int i = 0; i < mesh.numVertices * 3; i++) {
    vertices.put(i, mesh.vertexBase.getFloat(i * 4));
  }
  jmeMesh.updateCounts();
  jmeMesh.updateBound();
  jmeMesh.getFloatBuffer(Type.Position).clear();
  return jmeMesh;
}

代码示例来源：origin: jMonkeyEngine/jmonkeyengine

protected void setHeight(List<LocationHeight> locationHeights, boolean overrideHeight) {
  final float[] heightArray = geomap.getHeightArray();
  final VertexBuffer vertexBuffer = mesh.getBuffer(Type.Position);
  final FloatBuffer floatBuffer = mesh.getFloatBuffer(Type.Position);
  for (LocationHeight lh : locationHeights) {
    if (lh.x < 0 || lh.z < 0 || lh.x >= size || lh.z >= size) {
      continue;
    }
    int idx = lh.z * size + lh.x;
    if (overrideHeight) {
      heightArray[idx] = lh.h;
    } else {
      float currentHeight = floatBuffer.get(idx * 3 + 1);
      heightArray[idx] = currentHeight + lh.h;
    }
  }
  floatBuffer.clear();
  geomap.writeVertexArray(floatBuffer, stepScale, false);
  vertexBuffer.setUpdateNeeded();
}

代码示例来源：origin: jMonkeyEngine/jmonkeyengine

private static ArrayList<VertexInfo> linkVertices(Mesh mesh, boolean splitMirrored) {
  ArrayList<VertexInfo> vertexMap = new ArrayList<VertexInfo>();
  FloatBuffer vertexBuffer = mesh.getFloatBuffer(Type.Position);
  FloatBuffer normalBuffer = mesh.getFloatBuffer(Type.Normal);
  FloatBuffer texcoordBuffer = mesh.getFloatBuffer(Type.TexCoord);

代码示例来源：origin: jMonkeyEngine/jmonkeyengine

private void build() {
  BoundingSphere bs = new BoundingSphere();
  bs.computeFromPoints(mesh.getFloatBuffer(VertexBuffer.Type.Position));
  meshBoundingSphereRadius = bs.getRadius();
  List<Vertex> vertexLookup = new ArrayList<Vertex>();
  initialize();
  
  gatherVertexData(mesh, vertexLookup);
  gatherIndexData(mesh, vertexLookup);
  computeCosts();
  // assert (assertValidMesh());
  
}

代码示例来源：origin: jMonkeyEngine/jmonkeyengine

public static synchronized IndexedMesh convert(Mesh mesh) {
  IndexedMesh jBulletIndexedMesh = new IndexedMesh();
  jBulletIndexedMesh.triangleIndexBase = ByteBuffer.allocate(mesh.getTriangleCount() * 3 * 4);
  jBulletIndexedMesh.vertexBase = ByteBuffer.allocate(mesh.getVertexCount() * 3 * 4);
  IndexBuffer indices = mesh.getIndicesAsList();
  
  FloatBuffer vertices = mesh.getFloatBuffer(Type.Position);
  vertices.rewind();
  int verticesLength = mesh.getVertexCount() * 3;
  jBulletIndexedMesh.numVertices = mesh.getVertexCount();
  jBulletIndexedMesh.vertexStride = 12; //3 verts * 4 bytes per.
  for (int i = 0; i < verticesLength; i++) {
    float tempFloat = vertices.get();
    jBulletIndexedMesh.vertexBase.putFloat(tempFloat);
  }
  int indicesLength = mesh.getTriangleCount() * 3;
  jBulletIndexedMesh.numTriangles = mesh.getTriangleCount();
  jBulletIndexedMesh.triangleIndexStride = 12; //3 index entries * 4 bytes each.
  for (int i = 0; i < indicesLength; i++) {
    jBulletIndexedMesh.triangleIndexBase.putInt(indices.get(i));
  }
  vertices.rewind();
  vertices.clear();
  return jBulletIndexedMesh;
}

代码示例来源：origin: jMonkeyEngine/jmonkeyengine

public static Mesh getDebugMesh(CollisionShape shape) {
  Mesh mesh = null;
  if (shape.getCShape() instanceof ConvexShape) {
    mesh = new Mesh();
    mesh.setBuffer(Type.Position, 3, getVertices((ConvexShape) shape.getCShape()));
    mesh.getFloatBuffer(Type.Position).clear();
  } else if (shape.getCShape() instanceof ConcaveShape) {
    mesh = new Mesh();
    mesh.setBuffer(Type.Position, 3, getVertices((ConcaveShape) shape.getCShape()));
    mesh.getFloatBuffer(Type.Position).clear();
  }
  return mesh;
}

代码示例来源：origin: jMonkeyEngine/jmonkeyengine

&& mesh.getFloatBuffer(Type.Normal) == null){
 logger.log(Level.WARNING, "OBJ mesh {0} doesn't contain normals! "
             + "It might not display correctly", geom.getName());

代码示例来源：origin: jMonkeyEngine/jmonkeyengine

/**
 * Create a mesh for visualizing the specified shape.
 *
 * @param shape (not null, unaffected)
 * @return a new mesh (not null)
 */
public static Mesh getDebugMesh(CollisionShape shape) {
  Mesh mesh = new Mesh();
  DebugMeshCallback callback = new DebugMeshCallback();
  long id = shape.getObjectId();
  getVertices(id, callback);
  mesh.setBuffer(Type.Position, 3, callback.getVertices());
  mesh.getFloatBuffer(Type.Position).clear();
  return mesh;
}

代码示例来源：origin: jMonkeyEngine/jmonkeyengine

private void createCollisionMesh(Mesh mesh) {
  this.triangleIndexBase = BufferUtils.createByteBuffer(mesh.getTriangleCount() * 3 * 4);
  this.vertexBase = BufferUtils.createByteBuffer(mesh.getVertexCount() * 3 * 4);
  this.numVertices = mesh.getVertexCount();
  this.vertexStride = 12; // 3 verts * 4 bytes per.
  this.numTriangles = mesh.getTriangleCount();
  this.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();
  this.createShape(null);
}

代码示例来源：origin: jMonkeyEngine/jmonkeyengine

private void createCollisionMesh(Mesh mesh) {
    triangleIndexBase = BufferUtils.createByteBuffer(mesh.getTriangleCount() * 3 * 4);
    vertexBase = BufferUtils.createByteBuffer(mesh.getVertexCount() * 3 * 4); 
//        triangleIndexBase = ByteBuffer.allocate(mesh.getTriangleCount() * 3 * 4);
//        vertexBase = ByteBuffer.allocate(mesh.getVertexCount() * 3 * 4);
    numVertices = mesh.getVertexCount();
    vertexStride = 12; //3 verts * 4 bytes per.
    numTriangles = mesh.getTriangleCount();
    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();

    createShape();
  }

代码示例来源：origin: jMonkeyEngine/jmonkeyengine

FloatBuffer vertices = mesh.getFloatBuffer(Type.Position);
vertices.rewind();

代码示例来源：origin: jMonkeyEngine/jmonkeyengine

FloatBuffer positions = terrainBlock.getFloatBuffer(Type.Position);

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