This download includes version 2019 for LightWave 3D 2018/2019 as well as version 2020 for LightWave 3D 2020 both for Windows and macOS.
Please be aware that version 2020 requires a new
Fusion settings for the Custom Tool to convert LightWave Style float motion vectors to RSMB style clamped integer vectors.
Software license agreement for exrTrader. Please download and read this first before you download exrTrader.