/// <summary>
/// Apply the inverse local rotate/translate/scale at transform to frameIn
/// </summary>
public static Frame3f ApplyInverseTransform(ITransformed transform, Frame3f frameIn)
{
Frame3f result = transform.GetLocalFrame(CoordSpace.ObjectCoords).ToFrame(frameIn);
result.Scale(1.0f / transform.GetLocalScale());
return(result);
}
/// <summary>
/// input objectF is in Object (local) coords of so, apply all intermediate
/// transforms to get it to Scene coords
/// </summary>
public static Frame3f ObjectToScene(SceneObject so, Frame3f objectF)
{
Frame3f sceneF = objectF;
SceneObject curSO = so;
while (curSO != null)
{
Frame3f curF = curSO.GetLocalFrame(CoordSpace.ObjectCoords);
Vector3f scale = curSO.GetLocalScale();
Util.gDevAssert(curSO == so || IsUniformScale(scale));
sceneF.Scale(scale);
sceneF = curF.FromFrame(ref sceneF);
SOParent parent = curSO.Parent;
if (parent is FScene)
{
return(sceneF);
}
curSO = (parent as SceneObject);
}
if (curSO == null)
{
DebugUtil.Error("SceneTransforms.ObjectToScene: found null parent SO!");
}
return(sceneF);
}
/// <summary>
/// Apply the inverse local rotate/translate/scale at transform to frameIn
/// </summary>
public static Frame3f ApplyInverseTransform(ITransformed transform, Frame3f frameIn)
{
Frame3f result = transform.GetLocalFrame(CoordSpace.ObjectCoords).ToFrame(ref frameIn);
Vector3f scale = transform.GetLocalScale();
Util.gDevAssert(IsUniformScale(scale));
result.Scale(1.0f / scale);
return(result);
}
/// <summary>
/// input objectF is in Object (local) coords of so, apply all intermediate
/// transforms to get it to Scene coords
/// </summary>
public static Frame3f ObjectToScene(TransformableSO so, Frame3f objectF)
{
Frame3f sceneF = objectF;
TransformableSO curSO = so;
while (curSO != null)
{
Frame3f curF = curSO.GetLocalFrame(CoordSpace.ObjectCoords);
Vector3f scale = curSO.GetLocalScale();
sceneF.Scale(scale);
sceneF = curF.FromFrame(sceneF);
SOParent parent = curSO.Parent;
if (parent is FScene)
{
return(sceneF);
}
curSO = (parent as TransformableSO);
}
if (curSO == null)
{
DebugUtil.Error("SceneTransforms.TransformTo: found null parent SO!");
}
return(sceneF);
}
