source/stereoview.h

   1 #ifndef MSP_VR_STEREOVIEW_H_
   2 #define MSP_VR_STEREOVIEW_H_
   3
   4 #include <msp/geometry/angle.h>
   5 #include <msp/gl/camera.h>
   6 #include <msp/gl/framebuffer.h>
   7 #include <msp/gl/renderable.h>
   8 #include <msp/gl/renderbuffer.h>
   9 #include <msp/gl/texture2d.h>
  10
  11 namespace Msp {
  12 namespace VR {
  13
  14 class HeadTrackingCamera;
  15 class StereoCombiner;
  16
  17 class StereoView
  18 {
  19 private:
  20         struct RenderTarget
  21         {
  22                 GL::Framebuffer fbo;
  23                 GL::Texture2D color;
  24                 GL::Renderbuffer depth;
  25
  26                 RenderTarget(unsigned, unsigned);
  27         };
  28
  29         struct EyeParams
  30         {
  31                 Geometry::Angle<float> fov;
  32                 float aspect;
  33                 float near_clip;
  34                 float far_clip;
  35         };
  36
  37         struct Eye
  38         {
  39                 mutable GL::Camera camera;
  40                 RenderTarget *target;
  41
  42                 Eye();
  43
  44                 void create_target(unsigned, unsigned);
  45                 void setup_frame(const GL::Camera &, const GL::Vector3 &, float, const EyeParams &) const;
  46                 void render(const GL::Renderable &) const;
  47         };
  48
  49         const StereoCombiner &combiner;
  50         const GL::Camera &base_camera;
  51         HeadTrackingCamera *head_camera;
  52         const GL::Renderable *content;
  53         Eye left;
  54         Eye right;
  55         float eye_spacing;
  56         Geometry::Angle<float> strabismus;
  57
  58 public:
  59         StereoView(const StereoCombiner &, const GL::Camera &);
  60         StereoView(const StereoCombiner &, HeadTrackingCamera &);
  61 private:
  62         void init();
  63
  64 public:
  65         void set_content(const GL::Renderable *);
  66         void set_eye_spacing(float);
  67         void set_strabismus(const Geometry::Angle<float> &);
  68
  69 private:
  70         void setup_frame() const;
  71 public:
  72         void render() const;
  73 };
  74
  75 } // namespace VR
  76 } // namespace Msp
  77
  78 #endif