Backward Compatibility with Version 6.3 and Earlier
Wall
In the Wall feature, when the Wall condition is Mixed diffuse and Specular reflection and the Primary ray condition is either Probability or Expression, the Otherwise list has been updated to support nonreflected conditions. Therefore, if you have the following lines in the API code:
model.component("comp1").physics("gop").feature("wall1")
.set("WallCondition", "MixedDiffuseSpecular")
model.component("comp1").physics("gop").feature("wall1")
.set("Otherwise", "Disappear")
To achieve full backward compatibility, change "Otherwise" to "OtherwiseForMixed" and set its corresponding condition to one of "Disappear", "Freeze", "Stick", or "Pass".
Simplified Operator Names
If a model built in version 6.3 or earlier is opened in version 6.4, the physics features will be automatically updated to use the new operators. However, if the operators are used as part of a user-defined expression, for example, in postprocessing features such as Global Evaluation or Color Expression, the expressions will need to be updated.