Expressions broken between reference and nonreference model objects
Article needs peer review
Symptom
After importing an emdl file as a Reference model; creating a Link_with expression between an object at the Scene_root level and another object contained within the Reference model level; saving the scene; then opening the previously saved scene, the Link_with expression is lost, or broken after the scene was loaded into SoftimageXSI. What is occurring in this case?
Cause
This problem is a known bug. Please refer to the following bug information: 95666: Expressions are broken between Reference and non-Reference models.
Solution
Here is a simple solution to circumvent this problem.
- Simply introduce an object such as an Implicit cube into the scene after importing the emdl file.
- POS Constrain the Implicit object to the object that's contained in the Reference Model. You may want to use a CnsComp on the implicit object in order to slightly offset this object, in order to better see what's happening in your scene.
- Then, apply the Link_with or expression between the non-Reference and Reference models' object(s), but make sure that the target object in this case is the implicit object (e.g. the cube).
Result: After saving and loading the scene, the Link_with expressions will remain intact, solely because of POS constraints are NOT affected by this bug. In other words, we are using the implicit object (along with constraints) as a neutral mechanism to bridge the gap between the non-Reference and Reference objects in the scene, thus in order to circumvent the problem.
Fixed: XSI 5.01
Applies To: XSI 3.5 on Win2K,Linux
Posted: 12/4/2003
