I've been developing omnidirectional shadowmap entities lately, and it
works great except for r_flashlightscissor being no good when you have
multiple projections. Keeping it off results is crazy overdraw where
large areas of the screen are written over at least seven times per
frame, sending performance off a cliff:
On:
http://cloud.steampowered.com/ugc/558664840002096292/18D0A75B5AB15EE433377DE5E792C3C52D8CB648/
Off:
http://cloud.steampowered.com/ugc/558664840002097596/EFCB735994AE0BAA8ED371D47D1149F700518717/
The difference between those screens is 30 fps!
Has anyone worked out a way to fix scissoring for multi-projection
scenes, or at least how to detect when it can safely be enabled?
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