If you are a student or faculty member, Lumion offers a free educational license, providing full access to Lumion Pro for one year, which can be renewed.
Using a "crack" or "keygen" to activate software is illegal and presents significant risks: lumion-pro-crack
Processor scoring a single thread CPUMark of 3,000 or higher (e.g., AMD Ryzen 5 5500, Intel Core i7-11700T). RAM: 64 GB or more. If you are a student or faculty member,