From BlenderWiki
Strips Modifiers
Strip modifiers are very similar to object’s modifiers: they form a stack (even though not shown as this in Blender 2.49), each one taking the result of the previous one and modifying it. Obviously, the start data is featured by the underlying action strip, and the end data is what is used by the NLA to produce its animation.
Common Interface
The only visible button by default is the Add Modifier one, which, incredibly, adds a modifier when you press it! Note that the new modifier is always added at the end (“bottom”) of the stack (i.e. is applied last), and that there is currently no way to reorganize them!
Once a modifier is added to a strip, this one gets a small “wrench key” icon to the left of its channel’s name.
This adds a whole set of controls in the Transform Properties panel of the strip. The first row is common to all modifiers, whereas the other(s) below is(are) specific to the current modifier (and hence described in the relevant next sections):
- The “left” and “right” arrows, and the first drop-down list
- These allow you to navigate between the modifiers in your stack: the arrows to go to the previous/next one, and the drop-down list to directly select a modifier.
- The second drop-down list
- It allows you to select the type of this modifier.
- Note that even though you have three choices (see the next sections), there is only one “working”, the Deform one.
- The “X” button
- As you might have guessed, it will delete (remove) the current modifier from the stack.
Deform Modifier
This modifier seems to be implemented – but I couldn’t manage to find out how it works or what it does… So if anyone knows more (like e.g. where to find a tutorial about it…), please contact me!
Noise Modifier
This modifier is not implemented…
Oomph Modifier
This modifier is not implemented…