VRAD (Source 2)
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VRAD2 and VRAD3 are the command-line tools that calculate and embed lighting data into compiled maps. It is the 
Source 2 counterpart of 
Source 1's VRAD.
In 
Counter-Strike 2, a GPU with ray tracing support (NVIDIA RTX, Intel Arc or AMD Radeon 6xxx+ series) is required to both preview and bake lighting[confirm]. The old deprecated CPU lighting compiler can be used if your GPU didn't meet the requirements, but please note that it does not support any new lighting types used in Counter-Strike 2.
Todo: Add more information about the Source 2's VRAD2/VRAD3 lighting.
