Video overlay

Objects can have multiple images (or videos) linked to them. As of yet there is no blending options, but if the second image has an alpha channel it will be used as a mask to merge the two sources. The alpha channel of the first image is completely discarded.

For still images, it is advised to use the PNG file format. For videos the Hap Alpha codec is the best choice, converted from a sequence of PNG files with transparency. See the FAQ for information about how to convert from a PNG sequence to a Hap video file.

To connect an additional image to an object, on the GUI control panel:

• create a new image / image_ffmpeg / image_shmdata

• select the file to play by setting its path in the image attributes

• shift+click on the target object to link the image to it