CaLight/CaLightWorld.hpp

   1 /*
   2 Cafu Engine, http://www.cafu.de/
   3 Copyright (c) Carsten Fuchs and other contributors.
   4 This project is licensed under the terms of the MIT license.
   5 */
   6
   7 #ifndef CAFU_CALIGHTWORLD_HPP_INCLUDED
   8 #define CAFU_CALIGHTWORLD_HPP_INCLUDED
   9
  10 #include "../Common/World.hpp"
  11 #include "GameSys/Entity.hpp"
  12
  13
  14 class CaLightWorldT
  15 {
  16     public:
  17
  18     CaLightWorldT(const char* FileName, ModelManagerT& ModelMan, cf::GuiSys::GuiResourcesT& GuiRes);
  19
  20     const cf::SceneGraph::BspTreeNodeT& GetBspTree() const { return *m_BspTree; }
  21
  22     double TraceRay(const Vector3dT& Start, const Vector3dT& Ray) const;
  23
  24     /// Creates (fake) lightmaps for (brush or bezier patch based) entities.
  25     /// The generated lightmaps are only "fakes", i.e. they are not a result of the true Radiosity computations of CaLight.
  26     /// Instead, they are obtained by sampling the environment (the world entity) and interpolating the obtained values.
  27     /// This of course is only possible after the world has been lit by the true Radiosity process.
  28     /// While the disadvantages are clear (objects that have not participated in the original Radiosity computations can
  29     /// obviously not blend into the environment visually as smoothly as if they had been there right from the start),
  30     /// the advantages are a reasonably quick completion of the computations and independency of the internal data of the
  31     /// original Radiosity computations.
  32     /// For example, this function can be implemented without reference to the "bins" of the tone-mapping operator of the
  33     /// world, which in turn makes the implementation of the "-onlyEnts" command-line option primally possible.
  34     void CreateLightMapsForEnts(const ArrayT< IntrusivePtrT<cf::GameSys::EntityT> >& AllEnts);
  35
  36     // Forwarded functions.
  37     void SaveToDisk(const char* FileName) const;
  38
  39
  40     private:
  41
  42     WorldT                              m_World;
  43     const cf::SceneGraph::BspTreeNodeT* m_BspTree;
  44     cf::ClipSys::CollisionModelStaticT* m_CollModel;
  45 };
  46
  47 #endif