X-Git-Url: http://git.tdb.fi/?p=libs%2Fvr.git;a=blobdiff_plain;f=source%2Fheadtrackingcamera.cpp;fp=source%2Fheadtrackingcamera.cpp;h=95868e2f12f107a512dda7d39e1dca0dc8fdce14;hp=0000000000000000000000000000000000000000;hb=dca13ee66628568631f502dfc79847c7368c7bb1;hpb=735148a3ecf7e753f520f22668b771583185f72f

diff --git a/source/headtrackingcamera.cpp b/source/headtrackingcamera.cpp
new file mode 100644
index 0000000..95868e2
--- /dev/null
+++ b/source/headtrackingcamera.cpp
@@ -0,0 +1,24 @@
+#include "headtrackingcamera.h"
+
+namespace Msp {
+namespace VR {
+
+HeadTrackingCamera::HeadTrackingCamera(const GL::Camera &c):
+	base_camera(c)
+{ }
+
+void HeadTrackingCamera::update_from_matrix(const GL::Matrix &hmd_matrix)
+{
+	GL::Matrix matrix = base_camera.get_object_matrix()*hmd_matrix;
+
+	set_position(matrix*GL::Vector3());
+	set_look_direction((matrix*GL::Vector4(0, 0, -1, 0)).slice<3>(0));
+	set_up_direction((matrix*GL::Vector4(0, 1, 0, 0)).slice<3>(0));
+
+	set_depth_clip(base_camera.get_near_clip(), base_camera.get_far_clip());
+	set_field_of_view(base_camera.get_field_of_view());
+	set_aspect(base_camera.get_aspect());
+}
+
+} // namespace VR
+} // namespace Msp