Here is a pack of 13 Quartz Generators that work well with the Layer Mask effect in VDMX.
Some have published inputs.
To set up create 2 layers. Drop one of these masks on Layer 1 and Hide the layer.
Add the Layer Mask effect to layer 2 and select Layer 1 as the source.
Play content on layer 2.
With thanks to George Toledo on the Facebook qc group for explaining how to create a random seed value
Enjoy!
Download at http://destroythingsbeautiful.com/downloads/