Driven Property Constraint

The main use of this constraint is to transfer the value of a non-animatable property to an animatable property. For example, controlling the scale of a box based on the length of a curve path.

How To Use:

• Add a Driven Property constraint to the scene.

• Add the object from which you want to read the property value into the Source group.

• Add the object to which you want to transfer the value into the Constrain group.

• Switch to the Setup tab in the Constraint UI Layout.

• Drag and drop the source object again, but this time into the first container.

• Drag and drop the constrain object into the second container.

• Select the property for both the source and the destination. An example is shown in the picture.

• Activate the constraint, and the value from the source object's property will be transferred to the destination object's property.

Test Scenes

• Camera Driven Property Example

• Curve Path Length Example

Videos

• Curve Path Length Example

• Simple Camera Property Example

Log

• 22.09.2013 – fix save/load issue in mobu 2014 version

• 07.05.2013 mobu 2014 64 bits

• 28.05.2012 mobu 2013 64 bit

• 11.11.2011 mobu 2012 64bit; fix displaying properties in UI when reset constraint; add load/save constraint properties.