VRAD (Source 2)
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VRAD2 and VRAD3 (only in 
) 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, which introduced VRAD3, 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 and VRAD2 has been removed.
Todo: Add more information about the Source 2's VRAD2/VRAD3 lighting.
