LightMixer light layers are back to the RandomControl product line.
It is now possible to output LightMixer layers in a multi-layered EXR file and tune them in your favorite editing software such as Photoshop, After Effects, Nuke…
Just like any other AOV in Arion, LightMixer layers are computed on the fly during the calculation of the full unbiased render or AOVs. That is, enabling LightMixer channels does not increase the total render time.
With this method, it is possible to re-light still frames or even full animation sequences with any software that supports EXR and multi-layered EXR files natively (e.g., Nuke).
Arion v2.4.0 offers up to 8 generic LightMixer channels, plus the environment and sunlight channels, adding up to a total of 10 exploitable channels.
RandomControl has been working with FnordWare to provide you with the best multi-layer EXR output possible. We strongly recommend their plugin ProEXR to read multi-layer EXR files in Photoshop and After Effect. Other softwares such as Nuke handle this natively just fine.