gra: include/gra/render/RTRender.h Source File

00001 /* $Id: RTRender.h,v 1.3 2002/12/05 15:05:48 cvs Exp $ */
00002 
00003 #ifndef __RT_RENDER_H
00004 #define __RT_RENDER_H
00005 
00006 #include <esg/SceneGraphObject.h>
00007 #include <gra/framebuffer/FrameBuffer.h>
00008 #include <esg/Intersector.h>
00009 #include <gra/shader/Shader.h>
00010 #include <gra/render/Render.h>
00011 #include <esg/Intersector.h>
00012 #include <esg/explorer/RayIntExplorer.h>
00013 
00014 using namespace esg;
00015 
00016 namespace gra {
00017 
00023 class GRA_EXPORT RTRender : public Render {
00024 public:
00025         enum PixelRend {
00026             CENTROID,             
00027             CORNERS,              
00028             CENTROID_AND_CORNERS, 
00029             RANDOM,               
00030             STRATIFIED_SAMPLING   
00031         };
00032         
00033         enum FBWriteMode {
00034             PER_PIXEL, 
00035             PER_LINE   
00036         };
00037     
00038 protected:
00039         Intersector * _pIntersector;
00040         Color3f       _background;
00041         PixelRend     _pixelRendering;
00042         unsigned      _raysPerPixel;
00043         FBWriteMode   _fbWriteMode;
00044         unsigned      _fbWriteElements;
00045         
00046 protected:
00047         void _render_pixel_point(RayIntExplorer&,
00048                                  SceneGraphObject&,
00049                                  Shader&,
00050                                  const Vector3&,
00051                                  Vector3,
00052                                  Color3f&);
00053         
00054         unsigned _render_pixel_centroid(RayIntExplorer&,
00055                                         SceneGraphObject&,
00056                                         Shader&,
00057                                         Camera&,
00058                                         const Vector3&,
00059                                         unsigned,
00060                                         unsigned,
00061                                         unsigned,
00062                                         unsigned,
00063                                         Color3f&);
00064         
00065         unsigned _render_pixel_corners(RayIntExplorer&,
00066                                        SceneGraphObject&,
00067                                        Shader&,
00068                                        Camera&,
00069                                        const Vector3d&,
00070                                        const Vector3d&,
00071                                        const Vector3d&,
00072                                        unsigned,
00073                                        unsigned,
00074                                        unsigned,
00075                                        unsigned,
00076                                        Color3f*,
00077                                        Color3f&,
00078                                        Color3f&);
00079         
00080         unsigned _render_pixel_randomly(RayIntExplorer&,
00081                                         SceneGraphObject&,
00082                                         Shader&,
00083                                         Camera&,
00084                                         const Vector3&,
00085                                         unsigned,
00086                                         unsigned,
00087                                         unsigned,
00088                                         unsigned,
00089                                         Color3f&);
00090         
00091         unsigned _render_pixel_stratified(RayIntExplorer&,
00092                                           SceneGraphObject&,
00093                                           Shader&,
00094                                           Camera&,
00095                                           const Vector3d&,
00096                                           const Vector3d&,
00097                                           const Vector3d&,
00098                                           double,
00099                                           double,
00100                                           Color3f&);
00101     
00108         virtual void _render (Shader&      shader,
00109                               FrameBuffer& fb,
00110                               Camera&      camera,
00111                               Scene&       scene);
00112         
00113 public:
00123         RTRender (Intersector*   i,
00124                   int*           setStopFlag,
00125                   const Color3f& background      = Color3f(.0,.0,.0),
00126                   PixelRend      pixelRend       = CENTROID,
00127                   unsigned       raysPerPixel    = 1,
00128                   FBWriteMode    fbWriteMode     = PER_LINE,
00129                   unsigned       fbWriteElements = 1)
00130             : Render(setStopFlag),
00131               _pIntersector(i),
00132               _background(background),
00133               _pixelRendering(pixelRend),
00134               _raysPerPixel(raysPerPixel),
00135               _fbWriteMode(fbWriteMode),
00136               _fbWriteElements(fbWriteElements)
00137               {
00138                   if (_fbWriteElements == 0) _fbWriteElements = 1;
00139               }
00140 };
00141 
00142 } // namespace
00143 
00144 #endif // __RT_RENDER_H