/// <summary>
/// translates scene so that focusPointS lies on camera forward axis. Also updates
/// camera.Target to be at this point.
/// </summary>
public void PanFocusOnScenePoint(FScene scene, fCamera camera, Vector3f focusPointS)
{
Vector3f focusPointW = scene.ToWorldP(focusPointS);
// figure out the pan that we would apply to camera, then apply the delta to the scene
Vector3f camPosW = camera.GetPosition();
Vector3f camForward = camera.Forward();
float fDist = Vector3.Dot((focusPointW - camPosW), camForward);
if (fDist == 0)
{
fDist = 2.0f * ((Camera)camera).nearClipPlane;
}
Vector3f newCamPosW = focusPointW - fDist * camForward;
Vector3f delta = camPosW - newCamPosW;
scene.RootGameObject.Translate(delta, false);
camera.SetTarget(focusPointW + delta);
}
public void ScenePanFocus(FScene scene, fCamera camera, Vector3f focusPointW, bool bAnimated)
{
CameraAnimator animator = camera.Animator();
if (bAnimated == false || animator == null)
{
// figure out the pan that we would apply to camera, then apply the delta to the scene
Vector3f camPosW = camera.GetPosition();
Vector3f camForward = camera.Forward();
float fDist = Vector3.Dot((focusPointW - camPosW), camForward);
Vector3f newCamPosW = focusPointW - fDist * camForward;
Vector3f delta = camPosW - newCamPosW;
scene.RootGameObject.Translate(delta, false);
camera.SetTarget(focusPointW + delta);
}
else
{
animator.PanFocus(focusPointW);
}
}
public override void PreRender()
{
fCamera cam = Parent.Context.ActiveCamera;
float zNear = 2 * cam.NearClipPlane;
Vector3f forwardW = cam.Forward();
Vector3f gridCenterW = cam.GetPosition() + zNear * forwardW;
Vector3f inCenterW = (Parent as FScene).ToWorldP(Center);
//Vector3f gridDirS = (Parent as FScene).ToSceneN(forwardW);
//Frame3f gridFrame = new Frame3f(gridCenter, gridDir);
//Frame3f gridFrame = new Frame3f(Center, gridDirS);
//Frame3f gridFrameW = new Frame3f(inCenterW, forwardW);
Frame3f gridFrameW = new Frame3f(gridCenterW, forwardW);
RootGameObject.SetWorldFrame(gridFrameW);
if (grids_valid == false)
{
update_grids();
}
}
