A node that is able to take a pre-made 3D LUT for colour correction. Additionally the node could be paired with a 'make 3D LUT' generator node to facilitate custom colour correction within VUO using LUTS.
A simple "Hello World" example of a VDMX plugin used to create a Data Source. Colour values are sampled from one layer (Layer 2, checkerboard) and used to drive an FX in another layer (Layer 1, mov). The layer, sample position and sample size can be changed in the plugin's window.