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The path mapping in V-Ray is looking for an online URL instead of a local C: drive path. vray 6 material library download offline
A month earlier, on a good connection, he had downloaded it from the — hidden under "Additional Downloads" not the automatic installer. He’d kept it "just in case." Found this guide helpful
Once downloaded, these materials are stored on your computer and can be used in offline mode for future projects. on a good connection