Alex thought, "No problem. I'll use V-Ray Light Gen. Click a preset. Done."
It was 2 AM. Alex had a villa exterior due in 12 hours. The client wanted "dramatic, cinematic sunset lighting." vray light gen not working
The little progress bar appeared... crawled to 100%... and then… nothing. The Light Gen window went blank. The dome light in the viewport was still dark. No textures. No preview. Just silence. Alex thought, "No problem
V-Ray Light Gen, in some versions, fails to write temporary HDRI preview files to a path containing a space. It silently fails. No error. Just a dead, dark dome. in some versions