X:/dropbox/visualizationlibrary/src/vlGraphics/MorphingCallback.hpp

Go to the documentation of this file.

/**************************************************************************************/
/*                                                                                    */
/*  Visualization Library                                                             */
/*  http://www.visualizationlibrary.org                                               */
/*                                                                                    */
/*  Copyright (c) 2005-2010, Michele Bosi                                             */
/*  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.                                   */
/*                                                                                    */
/*  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 HOLDER 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.                      */
/*                                                                                    */
/**************************************************************************************/

#ifndef MorphingCallback_INCLUDE_ONCE
#define MorphingCallback_INCLUDE_ONCE

#include <vlGraphics/Actor.hpp>
#include <vlGraphics/Geometry.hpp>

namespace vl
{
  class ResourceDatabase;

  class VLGRAPHICS_EXPORT MorphingCallback: public ActorEventCallback
  {
    VL_INSTRUMENT_CLASS(vl::MorphingCallback, ActorEventCallback)

  public:
    MorphingCallback();

    ~MorphingCallback();

    virtual void onActorRenderStarted(Actor* actor, real frame_clock, const Camera* cam, Renderable* renderable, const Shader*, int pass);

    virtual void onActorDelete(Actor*) {}

    void bindActor(Actor* actor);

    void init(ResourceDatabase* res_db);

    void blendFrames(int a, int b, float t);

    void setAnimation(int start, int end, float period);

    void startAnimation(real time = -1);

    void stopAnimation();

    void initFrom(MorphingCallback* morph_cb);

    void resetGLSLBindings();

    bool glslVertexBlendEnabled() const { return mGLSLVertexBlendEnabled; }
    void setGLSLVertexBlendEnabled(bool enable) { mGLSLVertexBlendEnabled = enable; }

    Geometry* geometry() { return mGeometry.get(); }
    const Geometry* geometry() const { return mGeometry.get(); }

    bool animationStarted() const { return mAnimationStarted; }

  protected:
    ref<Geometry> mGeometry;
    ref<ArrayFloat3> mVertices;
    ref<ArrayFloat3> mNormals;
    std::vector< ref<ArrayFloat3> > mVertexFrames;
    std::vector< ref<ArrayFloat3> > mNormalFrames;

    real mLastUpdate;
    real mElapsedTime;
    real mAnimationStartTime;
    int mAnimationStart;
    int mAnimationEnd;
    float mAnimationPeriod;
    bool mAnimationStarted;
    int mFrame1;
    int mFrame2;

    bool mGLSLVertexBlendEnabled;
    int mVertex2_Binding;
    int mNormal2_Binding;
    int mAnim_t_Binding;
    float mAnim_t;
  };
  //-----------------------------------------------------------------------------
}

#endif