// called on per-frame Update()
virtual public void PreRender()
{
root.Show();
float useDegrees = (GizmoVisualDegrees > 0) ? GizmoVisualDegrees : SceneGraphConfig.DefaultAxisGizmoVisualDegrees;
float fWorldSize = VRUtil.GetVRRadiusForVisualAngle(
root.GetPosition(),
parentScene.ActiveCamera.GetPosition(),
useDegrees);
float fSceneSize = fWorldSize / parentScene.GetSceneScale();
float fGeomScale = fSceneSize / initialGizmoRadius;
root.SetLocalScale(new Vector3f(fGeomScale));
foreach (var widget in Widgets)
{
widget.Value.UpdateGizmoWorldSize(fWorldSize);
}
if (DynamicVisibilityFiltering && targetWrapper != null)
{
Frame3f frameW = targetWrapper.GetLocalFrame(CoordSpace.WorldCoords);
Vector3d camPosW = parentScene.ActiveCamera.GetPosition();
foreach (var go in enabledWidgetGOs)
{
Standard3DTransformWidget widget = Widgets[go];
bool visible = widget.CheckVisibility(ref frameW, ref camPosW);
go.SetVisible(visible);
}
}
}
//
// Boilerplate stuff
//
virtual protected void onTransformModified(SceneObject so)
{
// keep widget synced with object frame of target
Frame3f widgetFrame = targetWrapper.GetLocalFrame(CoordSpace.ObjectCoords);
gizmo.SetLocalPosition(widgetFrame.Origin);
gizmo.SetLocalRotation(widgetFrame.Rotation);
}
void SetActiveFrame(FrameType eFrame)
{
if (eFrame == FrameType.LocalFrame)
{
targetWrapper = new PassThroughWrapper(target);
}
else
{
targetWrapper = new SceneFrameWrapper(parentScene, target);
}
// update gizmo transform to match target frame
Frame3 widgetFrame = targetWrapper.GetLocalFrame(CoordSpace.ObjectCoords);
gizmo.transform.localPosition = widgetFrame.Origin;
gizmo.transform.localRotation = widgetFrame.Rotation;
}
void onTransformModified(TransformableSO so)
{
// keep widget synced with object frame of target
Frame3f widgetFrame = targetWrapper.GetLocalFrame(CoordSpace.ObjectCoords);
gizmo.transform.localPosition = widgetFrame.Origin;
gizmo.transform.localRotation = widgetFrame.Rotation;
}
