Current Version: v1.0
Based on Isadora’s Chopper actor, this allows rapid and accurate selection of a portion of a video source simply by clicking and dragging the corners of a rectangle
Current Version: v1.0
This actor overlays crosshairs on whichever stage the mouse is currently on. This is extremely useful when setting up projection mappings on complex surfaces because it makes it much easier to keep track of your cursor.

Current Version: v1.1
When used in conjunction with the Movie Player, CI Movie Player, Sound Movie Player or Movie Player Direct actors, this actor allows keystroke or trigger input controlled punch-in/punch-out realtime loop control. It also offer similarly easy reset of the in and out points to the beginning and end (respectively) of the movie. Keystrokes or trigger inputs can also be used to half, third, or quarter the loop length or return it to full length.
Current Version: v1.6
This is a more powerful version of the grid generator from the Cornerpin Projector actor. The user can select colors and weights for the heavy and light lines and this actor will generate an alignment grid for use in aligning projections.

Misc
Absolute Quad Distort Projector
Current Version: v1.1
This is actor allows the user to utilize the functionality of the 3D Quad Distort actor without having to enter relative distort (X,Y) values for each corner. Based on an absolute coordinate system in which (0,0) is the upper left hand corner of the stage and (100,100) is the lower right hand corner of the stage. This is also the basis of some of my other user actors such as the Cornerpin Projector.
CPMK2 Edit Selector
Current Version: v1.0
This actor helps speed up the process of cornerpinning up to ten quads with up to ten instances of my Cornerpin Projector MK2 actor. Simple connect the outputs of this actor to the edit inputs of the Cornerpin Projector MK2 actors and press the number keys 1, 2, 3, 4, 5, 6, 7, 8, 9, or 0 to activate editing for the numbers respective Cornerpin Projector MK2 actor. Key assignments can be readily changed by opening and editing the actor.
Note: I didn't specifically design it for this usage but this actor can be used off-label to control up to ten of pretty much any actor that has an on/off input. I can guarantee that it works with my Quad Grabber, Cornerpin Mask, QC Cornerpin, Bezier Surface, and Cornerpin Projector actors in addition to the Cornerpin Projector MK2 actor and I'm sure it works fine with tons of other stock and user actors.
License
My user actors are free for use in personal and commercial performance and installation. Derivative works are welcome as long as you make them readily and freely available via the web and provide proper attribution. You may not remove the attribution comment from the user actors or do anything else to obscure the origin of the work. Furthermore, you must provide clear attribution on the webpage used to distribute your derivative work. If you wish to charge for a patch or user actor that includes original or modified versions of any of my actors you must contact me to purchase a license. If you have been hired to produce custom Isadora programming you can use my actors for free as long as you plan to share your work freely and readily, otherwise you need to purchase a license to include them in your project. If you are unsure of whether or not you need to pay, please contact me. Pricing is dependent on the project but is generally pretty reasonable.

Above user actors by Matthew Haber are licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License.Downloads
Please Note: By downloading any of these user actors, you will be agreeing to abide by my license agreement. If you have not read it, you do not understand it or you are not willing to abide by it, you may not download these actors.