java类com.badlogic.gdx.graphics.VertexAttribute的实例源码

public void unbind()
{
  GL11 localGL11 = Gdx.gl11;
  int i = this.attributes.size();
  int j = 0;
  int k = 0;
  if (j < i)
  {
    VertexAttribute localVertexAttribute = this.attributes.get(j);
    switch (localVertexAttribute.usage)
    {
    case 4:
    default:
      throw new GdxRuntimeException("unkown vertex attribute type: " + localVertexAttribute.usage);
    case 1:
    case 5:
      localGL11.glDisableClientState(32886);
    case 0:
    case 2:
    case 3:
    }
    while (true)
    {
      j++;
      break;
      localGL11.glDisableClientState(32885);
      continue;
      localGL11.glClientActiveTexture(33984 + k);
      localGL11.glDisableClientState(32888);
      k++;
    }
  }
  localGL11.glBindBuffer(34962, 0);
  this.isBound = false;
}

@Override
public void create() {

        rotationSpeed = 0.5f;
        mesh = new Mesh(true, 4, 6,
                        new VertexAttribute(VertexAttributes.Usage.Position, 3,"attr_Position"),
                        new VertexAttribute(Usage.TextureCoordinates, 2, "attr_texCoords"));
        texture = new Texture(Gdx.files.internal("data/Jellyfish.jpg"));
        mesh.setVertices(new float[] { 
                         -1024f, -1024f, 0, 0, 1,
                          1024f, -1024f, 0, 1, 1,
                          1024f,  1024f, 0, 1, 0,
                         -1024f,  1024f, 0, 0, 0
        });
        mesh.setIndices(new short[] { 0, 1, 2, 2, 3, 0 });

        cam = new OrthographicCamera(Gdx.graphics.getWidth(), Gdx.graphics.getHeight());            
        xScale = Gdx.graphics.getWidth()/(float)TARGET_WIDTH;
        yScale = Gdx.graphics.getHeight()/(float)TARGET_HEIGHT;
        font = loadBitmapFont("default.fnt", "default.png");
        scale = Math.min(xScale, yScale);
        cam.zoom = 1/scale;
      //  cam.project(start_position);
        cam.position.set(0, 0, 0);
        batch = new SpriteBatch();
}

/**
 * Instantiates a new ShaderEffect. The ShaderEffect will NOT own shader
 * program, so it will not dispose it either!
 * 
 * @param program
 *            the ShaderProgram to use for this effect
 */
public ShaderEffect(ShaderProgram program) {
    this.program = program;

    if (meshRefCount++ <= 0) {
        mesh = new Mesh(VertexDataType.VertexArray, true, 4, 0,
                new VertexAttribute(Usage.Position, 2, ShaderProgram.POSITION_ATTRIBUTE),
                new VertexAttribute(Usage.TextureCoordinates, 2, ShaderProgram.TEXCOORD_ATTRIBUTE + "0"));

        // @formatter:off
        float[] verts = {
                // vertex    texture
                  -1, -1,    0f, 0f,
                   1, -1,    1f, 0f,
                   1,  1,    1f, 1f,
                  -1,  1,    0f, 1f,
        };
        // @formatter:on

        mesh.setVertices(verts);
    }
}

private String createPrefix(Renderable renderable) {
    String prefix = "";

    if (params.useBones) {
        prefix += "#define numBones " + 12 + "\n";
        final int n = renderable.meshPart.mesh.getVertexAttributes().size();

        for (int i = 0; i < n; i++) {
            final VertexAttribute attr = renderable.meshPart.mesh.getVertexAttributes().get(i);

            if (attr.usage == VertexAttributes.Usage.BoneWeight) {
                prefix += "#define boneWeight" + attr.unit + "Flag\n";
            }
        }
    }

    return prefix;
}

protected final int[] getAttributeLocations(Renderable renderable) {
    final IntIntMap attributes = new IntIntMap();
    final VertexAttributes attrs = renderable.meshPart.mesh.getVertexAttributes();
    final int c = attrs.size();
    for (int i = 0; i < c; i++) {
        final VertexAttribute attr = attrs.get(i);
        final int location = program.getAttributeLocation(attr.alias);
        if (location >= 0)
            attributes.put(attr.getKey(), location);
    }

    tempArray.clear();
    final int n = attrs.size();
    for (int i = 0; i < n; i++) {
        tempArray.add(attributes.get(attrs.get(i).getKey(), -1));
    }
    return tempArray.items;
}

protected final int[] getAttributeLocations(Renderable renderable) {
    final IntIntMap attributes = new IntIntMap();
    final VertexAttributes attrs = renderable.meshPart.mesh.getVertexAttributes();
    final int c = attrs.size();
    for (int i = 0; i < c; i++) {
        final VertexAttribute attr = attrs.get(i);
        final int location = program.getAttributeLocation(attr.alias);
        if (location >= 0)
            attributes.put(attr.getKey(), location);
    }

    tempArray.clear();
    final int n = attrs.size();
    for (int i = 0; i < n; i++) {
        tempArray.add(attributes.get(attrs.get(i).getKey(), -1));
    }
    return tempArray.items;
}

public void makeMesh() {
    int rayon = Math.max(ExterminateGame.rendu, ExterminateGame.MAX_VIEW_DISTANCE)+5;
     int nbTriangles=ChunkBuilder.GRIDSIZE*ChunkBuilder.GRIDSIZE*2*rayon*2*rayon*2;
     int nbVertex=(ChunkBuilder.GRIDSIZE+1)*(ChunkBuilder.GRIDSIZE+1)*rayon*2*rayon*2;

    FloatBuffer vertexL = org.lwjgl.BufferUtils.createFloatBuffer(nbVertex*ChunkBuilder.SOL_VERTICE_SIZE);
    IntBuffer indicesL = org.lwjgl.BufferUtils.createIntBuffer(nbTriangles*3);

    mesh = new UniMesh(true, true, nbVertex, nbTriangles*3, new VertexAttributes(VertexAttribute.Position(), VertexAttribute.NormalPacked(), VertexAttribute.TexCoords(0), VertexAttribute.ColorPacked()));
    mesh.setVertices(vertexL, 0, nbVertex*ChunkBuilder.SOL_VERTICE_SIZE);
    mesh.setIndices(indicesL, 0, nbTriangles*3);
    mesh.setCapacity(0);

    usedSol = new boolean[rayon*2*rayon*2];
    forChunk = new Chunk[rayon*2*rayon*2];

    for(int i=0;i<rayon*2*rayon*2;i++) {
        usedSol[i] = false;
    }

    UniVertexBufferObject.showMem();
}

public PositionalLight (RayHandler rayHandler, int rays, Color color, float distance, float x, float y, float directionDegree) {
    super(rayHandler, rays, color, directionDegree, distance);
    start.x = x;
    start.y = y;
    sin = new float[rays];
    cos = new float[rays];
    endX = new float[rays];
    endY = new float[rays];

    lightMesh = new Mesh(VertexDataType.VertexArray, false, vertexNum, 0, new VertexAttribute(Usage.Position, 2,
        "vertex_positions"), new VertexAttribute(Usage.ColorPacked, 4, "quad_colors"),
        new VertexAttribute(Usage.Generic, 1, "s"));
    softShadowMesh = new Mesh(VertexDataType.VertexArray, false, vertexNum * 2, 0, new VertexAttribute(Usage.Position, 2,
        "vertex_positions"), new VertexAttribute(Usage.ColorPacked, 4, "quad_colors"),
        new VertexAttribute(Usage.Generic, 1, "s"));
    setMesh();
}

/** Directional lights simulate light source that locations is at infinite distance. Direction and intensity is same everywhere.
 * -90 direction is straight from up.
 * 
 * @param rayHandler
 * @param rays
 * @param color
 * @param directionDegree */
public DirectionalLight (RayHandler rayHandler, int rays, Color color, float directionDegree) {

    super(rayHandler, rays, color, directionDegree, Float.POSITIVE_INFINITY);

    vertexNum = (vertexNum - 1) * 2;

    start = new Vector2[rayNum];
    end = new Vector2[rayNum];
    for (int i = 0; i < rayNum; i++) {
        start[i] = new Vector2();
        end[i] = new Vector2();
    }
    setDirection(direction);

    lightMesh = new Mesh(VertexDataType.VertexArray, staticLight, vertexNum, 0, new VertexAttribute(Usage.Position, 2,
        "vertex_positions"), new VertexAttribute(Usage.ColorPacked, 4, "quad_colors"),
        new VertexAttribute(Usage.Generic, 1, "s"));
    softShadowMesh = new Mesh(VertexDataType.VertexArray, staticLight, vertexNum, 0, new VertexAttribute(Usage.Position, 2,
        "vertex_positions"), new VertexAttribute(Usage.ColorPacked, 4, "quad_colors"),
        new VertexAttribute(Usage.Generic, 1, "s"));
    update();
}

/** Creates chain light from specified vertices
 * 
 * @param rayHandler not {@code null} instance of RayHandler
 * @param rays number of rays - more rays make light to look more realistic but will decrease performance, can't be less than
 *           MIN_RAYS
 * @param color color, set to {@code null} to use the default color
 * @param distance distance of light
 * @param rayDirection direction of rays
 *           <ul>
 *           <li>1 = left</li>
 *           <li>-1 = right</li>
 *           </ul>
 * @param chain float array of (x, y) vertices from which rays will be evenly distributed */
public RavChainLight (RayHandler rayHandler, int rays, Color color, float distance, int rayDirection, float[] chain) {
    super(rayHandler, rays, color, distance, 0f);

    rayStartOffset = ChainLight.defaultRayStartOffset;
    this.rayDirection = rayDirection;
    vertexNum = (vertexNum - 1) * 2;
    endX = new float[rays];
    endY = new float[rays];
    startX = new float[rays];
    startY = new float[rays];
    this.chain = (chain != null) ? new FloatArray(chain) : new FloatArray();

    lightMesh = new Mesh(VertexDataType.VertexArray, false, vertexNum, 0,
        new VertexAttribute(Usage.Position, 2, "vertex_positions"), new VertexAttribute(Usage.ColorPacked, 4, "quad_colors"),
        new VertexAttribute(Usage.Generic, 1, "s"));
    softShadowMesh = new Mesh(VertexDataType.VertexArray, false, vertexNum * 2, 0,
        new VertexAttribute(Usage.Position, 2, "vertex_positions"), new VertexAttribute(Usage.ColorPacked, 4, "quad_colors"),
        new VertexAttribute(Usage.Generic, 1, "s"));
    setMesh();
}

private void buildMesh() {
  mesh = new Mesh(true, SIZE, 6, VertexAttribute.Position(), VertexAttribute.TexCoords(0));
  mesh.setVertices(vertices);

  short[] indices = new short[6];
  int v = 0;
  for (int i = 0; i < indices.length; i += 6, v += 4) {
    indices[i] = (short)(v);
    indices[i + 1] = (short)(v + 2);
    indices[i + 2] = (short)(v + 1);
    indices[i + 3] = (short)(v + 1);
    indices[i + 4] = (short)(v + 2);
    indices[i + 5] = (short)(v + 3);
  }

  mesh.setIndices(indices);
}

public static Mesh build(float size, TextureRegion region) {
  Mesh mesh = new Mesh(true, SIZE, 6, VertexAttribute.Position(), VertexAttribute.TexCoords(0));
  mesh.setVertices(verticies(size, region));
  mesh.setAutoBind(false);
  short[] indices = new short[6];
  int v = 0;
  for (int i = 0; i < indices.length; i += 6, v += 4) {
    indices[i] = (short)(v);
    indices[i + 1] = (short)(v + 2);
    indices[i + 2] = (short)(v + 1);
    indices[i + 3] = (short)(v + 1);
    indices[i + 4] = (short)(v + 2);
    indices[i + 5] = (short)(v + 3);
  }

  mesh.setIndices(indices);

  return mesh;
}

public ImmediateModeRenderer20 (int maxVertices, boolean hasNormals, boolean hasColors, int numTexCoords, ShaderProgram shader) {
    this.maxVertices = maxVertices;
    this.numTexCoords = numTexCoords;
    this.shader = shader;

    VertexAttribute[] attribs = buildVertexAttributes(hasNormals, hasColors, numTexCoords);
    mesh = new Mesh(false, maxVertices, 0, attribs);

    vertices = new float[maxVertices * (mesh.getVertexAttributes().vertexSize / 4)];
    vertexSize = mesh.getVertexAttributes().vertexSize / 4;
    normalOffset = mesh.getVertexAttribute(Usage.Normal) != null ? mesh.getVertexAttribute(Usage.Normal).offset / 4 : 0;
    colorOffset = mesh.getVertexAttribute(Usage.ColorPacked) != null ? mesh.getVertexAttribute(Usage.ColorPacked).offset / 4
        : 0;
    texCoordOffset = mesh.getVertexAttribute(Usage.TextureCoordinates) != null ? mesh
        .getVertexAttribute(Usage.TextureCoordinates).offset / 4 : 0;

    shaderUniformNames = new String[numTexCoords];
    for (int i = 0; i < numTexCoords; i++) {
        shaderUniformNames[i] = "u_sampler" + i;
    }
}

@Override
public boolean canRender (Renderable renderable) {
    if (renderable.material.has(BlendingAttribute.Type)) {
        if ((materialMask & BlendingAttribute.Type) != BlendingAttribute.Type)
            return false;
        if (renderable.material.has(TextureAttribute.Diffuse) != ((materialMask & TextureAttribute.Diffuse) == TextureAttribute.Diffuse))
            return false;
    }
    final boolean skinned = ((renderable.mesh.getVertexAttributes().getMask() & Usage.BoneWeight) == Usage.BoneWeight);
    if (skinned != (numBones > 0)) return false;
    if (!skinned) return true;
    int w = 0;
    final int n = renderable.mesh.getVertexAttributes().size();
    for (int i = 0; i < n; i++) {
        final VertexAttribute attr = renderable.mesh.getVertexAttributes().get(i);
        if (attr.usage == Usage.BoneWeight) w |= (1 << attr.unit);
    }
    return w == weights;
}

/** Initializes the batch with the given amount of decal objects the buffer is able to hold when full.
 * 
 * @param size Maximum size of decal objects to hold in memory */
public void initialize (int size) {
    vertices = new float[size * Decal.SIZE];
    mesh = new Mesh(Mesh.VertexDataType.VertexArray, false, size * 4, size * 6, new VertexAttribute(
        VertexAttributes.Usage.Position, 3, ShaderProgram.POSITION_ATTRIBUTE), new VertexAttribute(
        VertexAttributes.Usage.ColorPacked, 4, ShaderProgram.COLOR_ATTRIBUTE), new VertexAttribute(
        VertexAttributes.Usage.TextureCoordinates, 2, ShaderProgram.TEXCOORD_ATTRIBUTE + "0"));

    short[] indices = new short[size * 6];
    int v = 0;
    for (int i = 0; i < indices.length; i += 6, v += 4) {
        indices[i] = (short)(v);
        indices[i + 1] = (short)(v + 2);
        indices[i + 2] = (short)(v + 1);
        indices[i + 3] = (short)(v + 1);
        indices[i + 4] = (short)(v + 2);
        indices[i + 5] = (short)(v + 3);
    }
    mesh.setIndices(indices);
}

/** @param usage bitwise mask of the {@link com.badlogic.gdx.graphics.VertexAttributes.Usage}, only Position, Color, Normal and
 *           TextureCoordinates is supported. */
public static VertexAttributes createAttributes (long usage) {
    final Array<VertexAttribute> attrs = new Array<VertexAttribute>();
    if ((usage & Usage.Position) == Usage.Position)
        attrs.add(new VertexAttribute(Usage.Position, 3, ShaderProgram.POSITION_ATTRIBUTE));
    if ((usage & Usage.Color) == Usage.Color) attrs.add(new VertexAttribute(Usage.Color, 4, ShaderProgram.COLOR_ATTRIBUTE));
    if ((usage & Usage.ColorPacked) == Usage.ColorPacked)
        attrs.add(new VertexAttribute(Usage.ColorPacked, 4, ShaderProgram.COLOR_ATTRIBUTE));
    if ((usage & Usage.Normal) == Usage.Normal)
        attrs.add(new VertexAttribute(Usage.Normal, 3, ShaderProgram.NORMAL_ATTRIBUTE));
    if ((usage & Usage.TextureCoordinates) == Usage.TextureCoordinates)
        attrs.add(new VertexAttribute(Usage.TextureCoordinates, 2, ShaderProgram.TEXCOORD_ATTRIBUTE + "0"));
    final VertexAttribute attributes[] = new VertexAttribute[attrs.size];
    for (int i = 0; i < attributes.length; i++)
        attributes[i] = attrs.get(i);
    return new VertexAttributes(attributes);
}

/** Constructs a new PolygonSpriteBatch. Sets the projection matrix to an orthographic projection with y-axis point upwards,
 * x-axis point to the right and the origin being in the bottom left corner of the screen. The projection will be pixel perfect
 * with respect to the current screen resolution.
 * <p>
 * The defaultShader specifies the shader to use. Note that the names for uniforms for this default shader are different than
 * the ones expect for shaders set with {@link #setShader(ShaderProgram)}. See {@link SpriteBatch#createDefaultShader()}.
 * @param size The max number of vertices and number of triangles in a single batch. Max of 10920.
 * @param defaultShader The default shader to use. This is not owned by the PolygonSpriteBatch and must be disposed separately. */
public PolygonSpriteBatch (int size, ShaderProgram defaultShader) {
    // 32767 is max index, so 32767 / 3 - (32767 / 3 % 3) = 10920.
    if (size > 10920) throw new IllegalArgumentException("Can't have more than 10920 triangles per batch: " + size);

    mesh = new Mesh(VertexDataType.VertexArray, false, size, size * 3, new VertexAttribute(Usage.Position, 2,
        ShaderProgram.POSITION_ATTRIBUTE), new VertexAttribute(Usage.ColorPacked, 4, ShaderProgram.COLOR_ATTRIBUTE),
        new VertexAttribute(Usage.TextureCoordinates, 2, ShaderProgram.TEXCOORD_ATTRIBUTE + "0"));

    vertices = new float[size * VERTEX_SIZE];
    triangles = new short[size * 3];

    if (defaultShader == null) {
        shader = SpriteBatch.createDefaultShader();
        ownsShader = true;
    } else
        shader = defaultShader;

    projectionMatrix.setToOrtho2D(0, 0, Gdx.graphics.getWidth(), Gdx.graphics.getHeight());
}

public void setupScene () {
    plane = new Mesh(true, 4, 6, new VertexAttribute(Usage.Position, 3, ShaderProgram.POSITION_ATTRIBUTE), new VertexAttribute(
        Usage.Normal, 3, ShaderProgram.NORMAL_ATTRIBUTE));
    plane.setVertices(new float[] {-10, -1, 10, 0, 1, 0, 10, -1, 10, 0, 1, 0, 10, -1, -10, 0, 1, 0, -10, -1, -10, 0, 1, 0});
    plane.setIndices(new short[] {3, 2, 1, 1, 0, 3});

    texture = new Texture(Gdx.files.internal("data/badlogic.jpg"), Format.RGB565, true);
    texture.setFilter(TextureFilter.MipMap, TextureFilter.Nearest);

    cam = new PerspectiveCamera(67, Gdx.graphics.getWidth(), Gdx.graphics.getHeight());
    cam.position.set(0, 5, 10);
    cam.lookAt(0, 0, 0);
    cam.update();
    controller = new PerspectiveCamController(cam);

    projector = new PerspectiveCamera(67, Gdx.graphics.getWidth(), Gdx.graphics.getHeight());
    projector.position.set(2, 3, 2);
    projector.lookAt(0, 0, 0);
    projector.normalizeUp();
    projector.update();
}

@Override
public void create () {
    String vertexShader = "attribute vec4 a_position;    \n" + "attribute vec4 a_color;\n" + "attribute vec2 a_texCoord0;\n"
        + "uniform mat4 u_worldView;\n" + "varying vec4 v_color;" + "varying vec2 v_texCoords;"
        + "void main()                  \n" + "{                            \n" + "   v_color = vec4(1, 1, 1, 1); \n"
        + "   v_texCoords = a_texCoord0; \n" + "   gl_Position =  u_worldView * a_position;  \n"
        + "}                            \n";
    String fragmentShader = "#ifdef GL_ES\n" + "precision mediump float;\n" + "#endif\n" + "varying vec4 v_color;\n"
        + "varying vec2 v_texCoords;\n" + "uniform sampler2D u_texture;\n" + "void main()                                  \n"
        + "{                                            \n" + "  gl_FragColor = v_color * texture2D(u_texture, v_texCoords);\n"
        + "}";

    shader = new ShaderProgram(vertexShader, fragmentShader);
    if (shader.isCompiled() == false) {
        Gdx.app.log("ShaderTest", shader.getLog());
        Gdx.app.exit();
    }

    mesh = new Mesh(true, 4, 6, VertexAttribute.Position(), VertexAttribute.ColorUnpacked(), VertexAttribute.TexCoords(0));
    mesh.setVertices(new float[] {-0.5f, -0.5f, 0, 1, 1, 1, 1, 0, 1, 0.5f, -0.5f, 0, 1, 1, 1, 1, 1, 1, 0.5f, 0.5f, 0, 1, 1, 1,
        1, 1, 0, -0.5f, 0.5f, 0, 1, 1, 1, 1, 0, 0});
    mesh.setIndices(new short[] {0, 1, 2, 2, 3, 0});
    texture = new Texture(Gdx.files.internal("data/bobrgb888-32x32.png"));
}

@Override
public void create () {
    mesh = new Mesh(true, 3, 0, new VertexAttribute(Usage.Position, 3, "a_Position"), new VertexAttribute(Usage.ColorPacked, 4,
        "a_Color"), new VertexAttribute(Usage.TextureCoordinates, 2, "a_texCoords"));
    float c1 = Color.toFloatBits(255, 0, 0, 255);
    float c2 = Color.toFloatBits(255, 0, 0, 255);
    float c3 = Color.toFloatBits(0, 0, 255, 255);

    mesh.setVertices(new float[] {-0.5f, -0.5f, 0, c1, 0, 0, 0.5f, -0.5f, 0, c2, 1, 0, 0, 0.5f, 0, c3, 0.5f, 1});

    stencilMesh = new Mesh(true, 3, 0, new VertexAttribute(Usage.Position, 3, "a_Position"), new VertexAttribute(
        Usage.ColorPacked, 4, "a_Color"), new VertexAttribute(Usage.TextureCoordinates, 2, "a_texCoords"));
    stencilMesh.setVertices(new float[] {-0.5f, 0.5f, 0, c1, 0, 0, 0.5f, 0.5f, 0, c2, 1, 0, 0, -0.5f, 0, c3, 0.5f, 1});

    texture = new Texture(Gdx.files.internal("data/badlogic.jpg"));

    spriteBatch = new SpriteBatch();
    frameBuffer = new FrameBuffer(Format.RGB565, 128, 128, false);
    stencilFrameBuffer = new FrameBuffer(Format.RGB565, 128, 128, false, true);
    createShader(Gdx.graphics);
}

@Override
public void create () {
    String vertexShader = "attribute vec4 a_position;    \n" + "attribute vec4 a_color;\n" + "attribute vec2 a_texCoords;\n"
        + "varying vec4 v_color;" + "varying vec2 v_texCoords;" + "void main()                  \n"
        + "{                            \n" + "   v_color = vec4(a_color.x, a_color.y, a_color.z, 1); \n"
        + "   v_texCoords = a_texCoords; \n" + "   gl_Position =  a_position;  \n" + "}                            \n";
    String fragmentShader = "#ifdef GL_ES\n" + "precision mediump float;\n" + "#endif\n" + "varying vec4 v_color;\n"
        + "varying vec2 v_texCoords;\n" + "uniform sampler2D u_texture;\n" + "void main()                                  \n"
        + "{                                            \n" + "  gl_FragColor = v_color * texture2D(u_texture, v_texCoords);\n"
        + "}";

    shader = new ShaderProgram(vertexShader, fragmentShader);
    vbo = new VertexBufferObject(true, 3, new VertexAttribute(VertexAttributes.Usage.Position, 2, "a_position"),
        new VertexAttribute(VertexAttributes.Usage.TextureCoordinates, 2, "a_texCoords"), new VertexAttribute(
            VertexAttributes.Usage.ColorPacked, 4, "a_color"));
    float[] vertices = new float[] {-1, -1, 0, 0, Color.toFloatBits(1f, 0f, 0f, 1f), 0, 1, 0.5f, 1.0f,
        Color.toFloatBits(0f, 1f, 0f, 1f), 1, -1, 1, 0, Color.toFloatBits(0f, 0f, 1f, 1f)};
    vbo.setVertices(vertices, 0, vertices.length);

    ibo = new IndexBufferObject(true, 3);
    ibo.setIndices(new short[] {0, 1, 2}, 0, 3);

    texture = new Texture(Gdx.files.internal("data/badlogic.jpg"));
}

private void init(String tex0, float w, float h) {
    setTexture0(tex0);

    // Init comparator
    comp = new DistToCameraComparator<IRenderable>();
    // Init vertices
    float[] vertices = new float[20];
    fillVertices(vertices, w, h);

    // We wont need indices if we use GL_TRIANGLE_FAN to draw our quad
    // TRIANGLE_FAN will draw the verts in this order: 0, 1, 2; 0, 2, 3
    mesh = new Mesh(VertexDataType.VertexArray, true, 4, 6, new VertexAttribute(Usage.Position, 2, ShaderProgram.POSITION_ATTRIBUTE), new VertexAttribute(Usage.ColorPacked, 4, ShaderProgram.COLOR_ATTRIBUTE), new VertexAttribute(Usage.TextureCoordinates, 2, ShaderProgram.TEXCOORD_ATTRIBUTE + "0"));

    mesh.setVertices(vertices, 0, vertices.length);
    mesh.getIndicesBuffer().position(0);
    mesh.getIndicesBuffer().limit(6);

    short[] indices = new short[] { 0, 1, 2, 0, 2, 3 };
    mesh.setIndices(indices);

    quaternion = new Quaternion();
    aux = new Vector3();

}

@Override
protected void initVertices() {
    meshes = new MeshData[2];
    maxVertices = MAX_VERTICES;

    // ORIGINAL LINES
    curr = new MeshData();
    meshes[0] = curr;

    VertexAttribute[] attribs = buildVertexAttributes();
    curr.mesh = new Mesh(false, maxVertices, 0, attribs);

    curr.vertices = new float[maxVertices * (curr.mesh.getVertexAttributes().vertexSize / 4)];
    curr.vertexSize = curr.mesh.getVertexAttributes().vertexSize / 4;
    curr.colorOffset = curr.mesh.getVertexAttribute(Usage.ColorPacked) != null ? curr.mesh.getVertexAttribute(Usage.ColorPacked).offset / 4 : 0;
}

private void initVertices(int index) {
    if (meshes[index] == null) {
        currext = new MeshDataExt();
        meshes[index] = currext;
        curr = currext;

        maxVertices = MAX_VERTICES;
        currext.maxIndices = maxVertices + maxVertices / 2;

        VertexAttribute[] attribs = buildVertexAttributes();
        currext.mesh = new Mesh(Mesh.VertexDataType.VertexArray, false, maxVertices, currext.maxIndices, attribs);

        currext.indices = new short[currext.maxIndices];
        currext.vertexSize = currext.mesh.getVertexAttributes().vertexSize / 4;
        currext.vertices = new float[maxVertices * currext.vertexSize];

        currext.colorOffset = currext.mesh.getVertexAttribute(Usage.ColorPacked) != null ? currext.mesh.getVertexAttribute(Usage.ColorPacked).offset / 4 : 0;
        currext.uvOffset = currext.mesh.getVertexAttribute(Usage.TextureCoordinates) != null ? currext.mesh.getVertexAttribute(Usage.TextureCoordinates).offset / 4 : 0;
    } else {
        currext = (MeshDataExt) meshes[index];
        curr = currext;
    }
}

@Override
protected void initVertices() {
    meshes = new MeshData[1];
    curr = new MeshData();
    meshes[0] = curr;

    aux = new Vector3();

    /** Init renderer **/
    maxVertices = 3000000;

    VertexAttribute[] attribs = buildVertexAttributes();
    curr.mesh = new Mesh(false, maxVertices, 0, attribs);

    curr.vertices = new float[maxVertices * (curr.mesh.getVertexAttributes().vertexSize / 4)];
    curr.vertexSize = curr.mesh.getVertexAttributes().vertexSize / 4;
    curr.colorOffset = curr.mesh.getVertexAttribute(Usage.ColorPacked) != null ? curr.mesh.getVertexAttribute(Usage.ColorPacked).offset / 4 : 0;
    pmOffset = curr.mesh.getVertexAttribute(Usage.Tangent) != null ? curr.mesh.getVertexAttribute(Usage.Tangent).offset / 4 : 0;
    sizeOffset = curr.mesh.getVertexAttribute(Usage.Generic) != null ? curr.mesh.getVertexAttribute(Usage.Generic).offset / 4 : 0;
}

private void init(float w, float h) {
    // Init comparator
    comp = new DistToCameraComparator<IRenderable>();
    // Init vertices
    float[] vertices = new float[20];
    fillVertices(vertices, w, h);

    // We wont need indices if we use GL_TRIANGLE_FAN to draw our quad
    // TRIANGLE_FAN will draw the verts in this order: 0, 1, 2; 0, 2, 3
    mesh = new Mesh(VertexDataType.VertexArray, true, 4, 6, new VertexAttribute(Usage.Position, 2, ShaderProgram.POSITION_ATTRIBUTE), new VertexAttribute(Usage.ColorPacked, 4, ShaderProgram.COLOR_ATTRIBUTE), new VertexAttribute(Usage.TextureCoordinates, 2, ShaderProgram.TEXCOORD_ATTRIBUTE + "0"));

    mesh.setVertices(vertices, 0, vertices.length);
    mesh.getIndicesBuffer().position(0);
    mesh.getIndicesBuffer().limit(6);

    short[] indices = new short[] { 0, 1, 2, 0, 2, 3 };
    mesh.setIndices(indices);

    quaternion = new Quaternion();
    aux = new Vector3();

}

@Override
protected void initVertices() {
    /** STARS **/
    meshes = new MeshData[1];
    curr = new MeshData();
    meshes[0] = curr;

    aux1 = new Vector3();

    maxVertices = 10000000;

    VertexAttribute[] attribs = buildVertexAttributes();
    curr.mesh = new Mesh(false, maxVertices, 0, attribs);

    curr.vertices = new float[maxVertices * (curr.mesh.getVertexAttributes().vertexSize / 4)];
    curr.vertexSize = curr.mesh.getVertexAttributes().vertexSize / 4;
    curr.colorOffset = curr.mesh.getVertexAttribute(Usage.ColorPacked) != null ? curr.mesh.getVertexAttribute(Usage.ColorPacked).offset / 4 : 0;
    pmOffset = curr.mesh.getVertexAttribute(Usage.Tangent) != null ? curr.mesh.getVertexAttribute(Usage.Tangent).offset / 4 : 0;
    additionalOffset = curr.mesh.getVertexAttribute(Usage.Generic) != null ? curr.mesh.getVertexAttribute(Usage.Generic).offset / 4 : 0;

}

/** @param usage bitwise mask of the {@link com.badlogic.gdx.graphics.VertexAttributes.Usage}, only Position, Color, Normal and
 *           TextureCoordinates is supported. */
public static VertexAttributes createAttributes(long usage) {
    final Array<VertexAttribute> attrs = new Array<VertexAttribute>();
    if ((usage & Usage.Position) == Usage.Position)
        attrs.add(new VertexAttribute(Usage.Position, 3, ShaderProgram.POSITION_ATTRIBUTE));
    if ((usage & Usage.ColorUnpacked) == Usage.ColorUnpacked)
        attrs.add(new VertexAttribute(Usage.ColorUnpacked, 4, ShaderProgram.COLOR_ATTRIBUTE));
    if ((usage & Usage.ColorPacked) == Usage.ColorPacked)
        attrs.add(new VertexAttribute(Usage.ColorPacked, 4, ShaderProgram.COLOR_ATTRIBUTE));
    if ((usage & Usage.Normal) == Usage.Normal)
        attrs.add(new VertexAttribute(Usage.Normal, 3, ShaderProgram.NORMAL_ATTRIBUTE));
    if ((usage & Usage.TextureCoordinates) == Usage.TextureCoordinates)
        attrs.add(new VertexAttribute(Usage.TextureCoordinates, 2, ShaderProgram.TEXCOORD_ATTRIBUTE + "0"));
    final VertexAttribute attributes[] = new VertexAttribute[attrs.size];
    for (int i = 0; i < attributes.length; i++)
        attributes[i] = attrs.get(i);
    return new VertexAttributes(attributes);
}

public ImmediateRenderer(int maxVertices, boolean hasNormals, boolean hasColors, int numTexCoords, ShaderProgram shader) {
    this.maxVertices = maxVertices;
    this.numTexCoords = numTexCoords;
    this.shader = shader;

    VertexAttribute[] attribs = buildVertexAttributes(hasNormals, hasColors, numTexCoords);
    mesh = new Mesh(false, maxVertices, 0, attribs);

    vertices = new float[maxVertices * (mesh.getVertexAttributes().vertexSize / 4)];
    vertexSize = mesh.getVertexAttributes().vertexSize / 4;
    normalOffset = mesh.getVertexAttribute(Usage.Normal) != null ? mesh.getVertexAttribute(Usage.Normal).offset / 4 : 0;
    colorOffset = mesh.getVertexAttribute(Usage.ColorPacked) != null ? mesh.getVertexAttribute(Usage.ColorPacked).offset / 4 : 0;
    texCoordOffset = mesh.getVertexAttribute(Usage.TextureCoordinates) != null ? mesh.getVertexAttribute(Usage.TextureCoordinates).offset / 4 : 0;

    shaderUniformNames = new String[numTexCoords];
    for (int i = 0; i < numTexCoords; i++) {
        shaderUniformNames[i] = "u_sampler" + i;
    }
}

@Override
public void create ()
{
    // Init camera
    this.camera = new PerspectiveCamera(70, Gdx.graphics.getWidth(), Gdx.graphics.getHeight());
    this.camera.position.set(0,0,-20);
    this.camera.lookAt(0,0,0);
    this.camera.near = 0.05f;
    this.camera.far = 600.0f;
    this.camera.update();

    // Init test shader
    this.testShader = ShaderLoader.loadShader("test");

    // Init test buffer
    this.testBufferObject = new DynamicVertexBufferObject(3, new VertexAttributes(new VertexAttribute(Usage.Position, 4, "a_position")));
    float[] vertices = new float[]
    {
            -10,0,0,1,0,2.5f,0,1,10,0,0,1
    };
    this.testBufferObject.setVertices(vertices, 0, vertices.length);    
}