Plugins + Scripts CUAShadowFixer

• Two-sided shadow casting (fix light leaks)
  New toggle in the Fix Shadows tab. A lot of environment light leaks come from single-sided walls. The wall only casts a shadow from the front, so light (such as a directional light) spills through from behind. Turning on "Two-sided shadow casting" makes sure all meshes cast shadows from both faces, sealing those leaks while still keeping the backside see-through. You no longer have to place your own cubes or shadowboxes to block out light. Off by default. It applies instantly when you flip it.
  
  
• Face-hide performs better on complex environments
  Hovering in face-hide mode used to test every triangle of every mesh, which could freeze VaM solid on detailed environments (millions of triangles). Reworked the picking so it only looks where your cursor actually points. It now stays smooth even on huge CUAs. There's also a new "Ignore meshes smaller than (m)" slider (default 0.5) so small clutter like rocks and props doesn't get in the way of picking the wall behind it (set it to 0 to pick everything).
  
  
• Lighter scene loads
  Reworked how the plugin scans for newly-loaded meshes, so loading a scene with lots of CUAs is much cheaper on the main thread. So no more stutter in the first ~30 seconds after a scene loads (which could drop frames in VR).

There's no change to how shadows look or to any of your existing scenes.

• Scene-wide mode: Add CUAShadowFixer.cslist on an Empty atom (or load it as a Scene or Session Plugin) and it fixes every CustomUnityAsset in the scene at once. Put it on a single CUA atom and it works exactly like before. A new Scene CUAs tab lists every CUA with a checkbox (plus Include all / Exclude all), and the list keeps itself up to date as you add, remove, or rename CUAs.
  
  Spoiler: Scene-wide mode Tab

  
  
  
• Per-CUA tuning: In scene-wide mode the Smoothness / Diffuse / Specular / Reflection / Emission sliders can target one CUA at a time via the new Tune CUA dropdown. You can make one CUA glossier, drop another's reflection or remove a third's emission. Leave Sliders affect ALL CUAs on to tune everything together. Per-CUA values save with the scene.
  
  Spoiler: Per-CUA Tuning Dropdown

  
  
  
• Instant re-apply: Conversions are now cached, so hiding and re-showing a CUA (or VaM reloading its asset) brings the shadows straight back instead of the previous 1–3 second reload.