source/oculusriftcamera.cpp

   1 #include "oculusriftcamera.h"
   2 #include "oculusriftcamera_private.h"
   3 #include "oculusriftdevice.h"
   4 #include "oculusriftdevice_private.h"
   5
   6 namespace Msp {
   7 namespace VR {
   8
   9 OculusRiftCamera::OculusRiftCamera(const OculusRiftDevice &d, const GL::Camera &c):
  10         device(d),
  11         base_camera(c),
  12         priv(new Private)
  13 {
  14         const OculusRiftDevice::Private &dev_priv = device.get_private();
  15         priv->ovr_sensor = dev_priv.ovr_hmd->GetSensor();
  16         priv->fusion.AttachToSensor(priv->ovr_sensor);
  17 }
  18
  19 OculusRiftCamera::~OculusRiftCamera()
  20 {
  21         delete priv;
  22 }
  23
  24 void OculusRiftCamera::update()
  25 {
  26         OVR::Matrix4f sensor_matrix = priv->fusion.GetOrientation();
  27         const float *m = &sensor_matrix.M[0][0];
  28
  29         const GL::Vector3 &base_look = base_camera.get_look_direction();
  30         GL::Vector3 base_right = normalize(cross(base_look, base_camera.get_up_direction()));
  31         GL::Vector3 base_up = normalize(cross(base_right, base_look));
  32
  33         set_position(base_camera.get_position());
  34         set_up_direction(base_right*m[1]+base_up*m[5]-base_look*m[9]);
  35         set_look_direction(-base_right*m[2]-base_up*m[6]+base_look*m[10]);
  36         set_depth_clip(base_camera.get_near_clip(), base_camera.get_far_clip());
  37         set_field_of_view(base_camera.get_field_of_view());
  38         set_aspect(base_camera.get_aspect());
  39 }
  40
  41 } // namespace VR
  42 } // namespace Msp