public SrdXrSRDData(SrdXrDisplaySize in_display_size, float in_display_tilt_rad
                     , SrdXrDisplayResolution in_display_resolution)
 {
     display_size       = in_display_size;
     display_tilt_rad   = in_display_tilt_rad;
     display_resolution = in_display_resolution;
 }
 public SrdXrDisplay(SrdXrDisplaySize in_display_size, SrdXrDisplayResolution in_display_resolution, SrdXrPosef in_display_pose)
 {
     display_size       = in_display_size;
     display_resolution = in_display_resolution;
     display_pose       = in_display_pose;
 }