SlicedVolume.hpp

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#ifndef SlicedVolume_INCLUDE_ONCE
#define SlicedVolume_INCLUDE_ONCE

#include <vlVolume/link_config.hpp>
#include <vlGraphics/Actor.hpp>
#include <vlGraphics/Geometry.hpp>
#include <vlGraphics/Light.hpp>

namespace vl
{
  class VLVOLUME_EXPORT SlicedVolume: public ActorEventCallback
  {
    VL_INSTRUMENT_CLASS(vl::SlicedVolume, ActorEventCallback)

  public:
    SlicedVolume();

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

    void onActorDelete(Actor*) { mActor = NULL; }

    void bindActor(Actor*);

    virtual void updateUniforms(Actor* actor, real clock, const Camera* camera, Renderable* rend, const Shader* shader);

    void setSliceCount(int count) { mSliceCount = count; }

    int sliceCount() const { return mSliceCount; }

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

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

    void setBox(const AABB& box);

    const AABB& box() const { return mBox; }

    const fvec3* texCoords() const { return mTexCoord; }

    fvec3* texCoords() { return mTexCoord; }

    void generateTextureCoordinates(const ivec3& size);

    void generateTextureCoordinates(const ivec3& img_size, const ivec3& min_corner, const ivec3& max_corner);

    const Actor* actor() const { return mActor; }
    Actor* actor() { return mActor; }

  protected:
    int mSliceCount;
    ref<Geometry> mGeometry;
    AABB mBox;
    fmat4 mCache;
    fvec3 mTexCoord[8];
    // Naked pointer on purpose in order not to create cyclical dependencies and mem leaks: the Actor owns the SlicedVolume
    Actor* mActor;
  };
}

#endif