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 StereoCombiner;
  15
  16 class StereoView
  17 {
  18 private:
  19         struct RenderTarget
  20         {
  21                 GL::Framebuffer fbo;
  22                 GL::Texture2D color;
  23                 GL::Renderbuffer depth;
  24
  25                 RenderTarget(unsigned, unsigned);
  26         };
  27
  28         struct EyeParams
  29         {
  30                 Geometry::Angle<float> fov;
  31                 float aspect;
  32                 float near_clip;
  33                 float far_clip;
  34         };
  35
  36         struct Eye
  37         {
  38                 mutable GL::Camera camera;
  39                 RenderTarget *target;
  40
  41                 Eye();
  42
  43                 void create_target(unsigned, unsigned);
  44                 void setup_frame(const GL::Camera &, const GL::Vector3 &, float, const EyeParams &) const;
  45                 void render(const GL::Renderable &) const;
  46         };
  47
  48         const StereoCombiner &combiner;
  49         const GL::Camera &base_camera;
  50         const GL::Renderable *content;
  51         Eye left;
  52         Eye right;
  53         float eye_spacing;
  54         Geometry::Angle<float> strabismus;
  55
  56 public:
  57         StereoView(const StereoCombiner &, const GL::Camera &);
  58
  59         void set_content(const GL::Renderable *);
  60         void set_eye_spacing(float);
  61         void set_strabismus(const Geometry::Angle<float> &);
  62
  63 private:
  64         void setup_frame() const;
  65 public:
  66         void render() const;
  67 };
  68
  69 } // namespace VR
  70 } // namespace Msp
  71
  72 #endif