Version 4 is a full revision of the previous version, that takes advantage of graphic processor unit by compiling each genotype into a program of OpenGL Shading Language. This innovation enabled breeding an abstract movie in realtime.

• You can specify the aspect ratio of external images regardless of the actual sizes of them. The method to adjust the size is also selectable among rescaling, filling, and trimming.
• Selection of the video input device and its frame size became available for the external media. These setups is controllable by AppleScript.
• It became possible to save the setups of live video as the user's default for the external media.
• It became possible to save the image data as the user's default for the external media, if the image was pasted from the clipboard or captured by the video input device.
• The alternative choice for transition between two external media revived. The alternatives are dissolve, vertical swipe, horizontal swipe, and replacement by difference.
• It became possible to change the time position in the movie of the external media by operating a slider.
• GLSL code for the deformation mode was debugged and modified to be shorter.
• A new menu item Modification accompanied by a submenu was added to Animate/Sound menu, that allows you to select the style of modification transition for the external media. This is as same as the operation in the animation parameter panel.
• An image well in the panel of external media became accepting an image data provided by another application, such as Image Capture and Grab, through OS X's Services.
• Zoomed window became providing the image data to another application, such as Mail and Stickies, through OS X's Services.
• A new button labeled Adjust to External Media is added to the resizing sheet of zoomed window that sets the same size of the external image if exists.