From db0b1f9c7a7630ace9b75c60bdcb18036d10fc72 Mon Sep 17 00:00:00 2001
From: Jarrod Doyle <thejarroddoyle@gmail.com>
Date: Tue, 28 Jan 2025 17:35:52 +0000
Subject: [PATCH] Pre-compute cell visibility in parallel

---
 KeepersCompound.Lightmapper/LightMapper.cs | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/KeepersCompound.Lightmapper/LightMapper.cs b/KeepersCompound.Lightmapper/LightMapper.cs
index 63df56c..85cff24 100644
--- a/KeepersCompound.Lightmapper/LightMapper.cs
+++ b/KeepersCompound.Lightmapper/LightMapper.cs
@@ -481,9 +481,14 @@ public class LightMapper
                         }
                     }
                 });
+                
+                var pvs = new PotentiallyVisibleSet(worldRep.Cells);
+                Parallel.ForEach(lightCellMap, i =>
+                {
+                    pvs.ComputeVisibility(i);
+                });
 
                 var visibleCellMap = new List<int[]>(_lights.Count);
-                var pvs = new PotentiallyVisibleSet(worldRep.Cells);
                 for (var i = 0; i < _lights.Count; i++)
                 {
                     var cellIdx = lightCellMap[i];