/// <summary>
/// Shift scene towards (+) / away-from (-) camera.
/// If bKeepTargetPos == false, then target shifts with scene
/// </summary>
public void SceneZoom(FScene scene, fCamera cam, float dz, bool bKeepTargetPos = true)
{
if (dz == 0.0f)
{
return;
}
float fScale = scene.GetSceneScale();
//Vector3f fw = cam.gameObject.transform.forward;
Vector3f fw = cam.GetTarget() - cam.GetPosition();
float fTargetDist = fw.Length;
fw.Normalize();
float fMinTargetDist = 0.1f * fScale;
if (dz > 0 && fTargetDist - dz < fMinTargetDist)
{
dz = fTargetDist - fMinTargetDist;
}
Vector3f delta = dz * fw;
scene.RootGameObject.Translate(-delta, false);
if (bKeepTargetPos)
{
cam.SetTarget(cam.GetTarget() - delta);
}
}
public void SceneTumbleAround(FScene scene, Vector3f position, float dx, float dy)
{
Vector3 targetPos = Camera.GetTarget();
Camera.SetTarget(position);
SceneTumble(scene, Camera, dx, dy);
Camera.SetTarget(targetPos);
}
/// <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 void ScenePanFocus(FScene scene, fCamera camera, Vector3f focusPoint, 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 curPos = camera.GetPosition();
Vector3f curDir = camera.GetWorldFrame().Z;
float fDist = Vector3.Dot((focusPoint - curPos), curDir);
Vector3f newPos = focusPoint - fDist * curDir;
Vector3f delta = curPos - newPos;
scene.RootGameObject.Translate(delta, false);
camera.SetTarget(focusPoint);
}
else
{
animator.PanFocus(focusPoint);
}
}
/// <summary>
/// Shift scene towards (+) / away-from (-) camera.
/// If bKeepTargetPos == false, then target shifts with scene
/// </summary>
public void SceneZoom(FScene scene, fCamera cam, float dz, bool bKeepTargetPos = true)
{
if (dz == 0.0f)
{
return;
}
if (cam.IsOrthographic)
{
float f = cam.OrthoHeight;
f = f - dz;
if (f < 0)
{
f = 0.01f;
}
cam.OrthoHeight = f;
scene.Context.CameraManager.UpdateMainCamOrthoSize();
}
else
{
float fScale = scene.GetSceneScale();
Vector3f fw = cam.GetTarget() - cam.GetPosition();
float fTargetDist = fw.Length;
fw.Normalize();
float fMinTargetDist = 0.1f * fScale;
if (dz > 0 && fTargetDist - dz < fMinTargetDist)
{
dz = fTargetDist - fMinTargetDist;
}
Vector3f delta = dz * fw;
scene.RootGameObject.Translate(-delta, false);
if (bKeepTargetPos)
{
cam.SetTarget(cam.GetTarget() - delta);
}
}
}
