Vector3 ARVRCamera::project_position(const Point2 &p_point) const {
// get our ARVRServer
ARVRServer *arvr_server = ARVRServer::get_singleton();
ERR_FAIL_NULL_V(arvr_server, Vector3());
Ref<ARVRInterface> arvr_interface = arvr_server->get_primary_interface();
if (arvr_interface.is_null()) {
// we might be in the editor or have VR turned off, just call superclass
return Camera::project_position(p_point);
}
if (!is_inside_tree()) {
ERR_EXPLAIN("Camera is not inside scene.");
ERR_FAIL_COND_V(!is_inside_tree(), Vector3());
};
Size2 viewport_size = get_viewport()->get_visible_rect().size;
CameraMatrix cm = arvr_interface->get_projection_for_eye(ARVRInterface::EYE_MONO, viewport_size.aspect(), get_znear(), get_zfar());
Size2 vp_size;
cm.get_viewport_size(vp_size.x, vp_size.y);
Vector2 point;
point.x = (p_point.x / viewport_size.x) * 2.0 - 1.0;
point.y = (1.0 - (p_point.y / viewport_size.y)) * 2.0 - 1.0;
point *= vp_size;
Vector3 p(point.x, point.y, -get_znear());
return get_camera_transform().xform(p);
};
void InterpolatedCamera::_notification(int p_what) {
switch(p_what) {
case NOTIFICATION_ENTER_SCENE: {
if (get_scene()->is_editor_hint() && enabled)
set_fixed_process(false);
} break;
case NOTIFICATION_PROCESS: {
if (!enabled)
break;
if (has_node(target)) {
Spatial *node = get_node(target)->cast_to<Spatial>();
if (!node)
break;
float delta = speed*get_process_delta_time();
Transform target_xform = node->get_global_transform();
Transform local_transform = get_transform();
local_transform = local_transform.interpolate_with(target_xform,delta);
set_global_transform(local_transform);
if (node->cast_to<Camera>()) {
Camera *cam = node->cast_to<Camera>();
if (cam->get_projection()==get_projection()) {
float new_near = Math::lerp(get_znear(),cam->get_znear(),delta);
float new_far = Math::lerp(get_zfar(),cam->get_zfar(),delta);
if (cam->get_projection()==PROJECTION_ORTHOGONAL) {
float size = Math::lerp(get_size(),cam->get_size(),delta);
set_orthogonal(size,new_near,new_far);
} else {
float fov = Math::lerp(get_fov(),cam->get_fov(),delta);
set_perspective(fov,new_near,new_far);
}
}
}
}
} break;
}
}
Point2 ARVRCamera::unproject_position(const Vector3 &p_pos) const {
// get our ARVRServer
ARVRServer *arvr_server = ARVRServer::get_singleton();
ERR_FAIL_NULL_V(arvr_server, Vector2());
Ref<ARVRInterface> arvr_interface = arvr_server->get_primary_interface();
if (arvr_interface.is_null()) {
// we might be in the editor or have VR turned off, just call superclass
return Camera::unproject_position(p_pos);
}
if (!is_inside_tree()) {
ERR_EXPLAIN("Camera is not inside scene.");
ERR_FAIL_COND_V(!is_inside_tree(), Vector2());
};
Size2 viewport_size = get_viewport()->get_visible_rect().size;
CameraMatrix cm = arvr_interface->get_projection_for_eye(ARVRInterface::EYE_MONO, viewport_size.aspect(), get_znear(), get_zfar());
Plane p(get_camera_transform().xform_inv(p_pos), 1.0);
p = cm.xform4(p);
p.normal /= p.d;
Point2 res;
res.x = (p.normal.x * 0.5 + 0.5) * viewport_size.x;
res.y = (-p.normal.y * 0.5 + 0.5) * viewport_size.y;
return res;
};
Vector3 ARVRCamera::project_local_ray_normal(const Point2 &p_pos) const {
// get our ARVRServer
ARVRServer *arvr_server = ARVRServer::get_singleton();
ERR_FAIL_NULL_V(arvr_server, Vector3());
Ref<ARVRInterface> arvr_interface = arvr_server->get_primary_interface();
if (arvr_interface.is_null()) {
// we might be in the editor or have VR turned off, just call superclass
return Camera::project_local_ray_normal(p_pos);
}
if (!is_inside_tree()) {
ERR_EXPLAIN("Camera is not inside scene.");
ERR_FAIL_COND_V(!is_inside_tree(), Vector3());
};
Size2 viewport_size = get_viewport()->get_camera_rect_size();
Vector2 cpos = get_viewport()->get_camera_coords(p_pos);
Vector3 ray;
CameraMatrix cm = arvr_interface->get_projection_for_eye(ARVRInterface::EYE_MONO, viewport_size.aspect(), get_znear(), get_zfar());
float screen_w, screen_h;
cm.get_viewport_size(screen_w, screen_h);
ray = Vector3(((cpos.x / viewport_size.width) * 2.0 - 1.0) * screen_w, ((1.0 - (cpos.y / viewport_size.height)) * 2.0 - 1.0) * screen_h, -get_znear()).normalized();
return ray;
};
Vector<Plane> ARVRCamera::get_frustum() const {
// get our ARVRServer
ARVRServer *arvr_server = ARVRServer::get_singleton();
ERR_FAIL_NULL_V(arvr_server, Vector<Plane>());
Ref<ARVRInterface> arvr_interface = arvr_server->get_primary_interface();
if (arvr_interface.is_null()) {
// we might be in the editor or have VR turned off, just call superclass
return Camera::get_frustum();
}
ERR_FAIL_COND_V(!is_inside_world(), Vector<Plane>());
Size2 viewport_size = get_viewport()->get_visible_rect().size;
CameraMatrix cm = arvr_interface->get_projection_for_eye(ARVRInterface::EYE_MONO, viewport_size.aspect(), get_znear(), get_zfar());
return cm.get_projection_planes(get_camera_transform());
};
