重新导入obi

Assets/Obi/Scripts/Common/Backends/Burst/Solver/UpdateNormalsJob.cs

@@ -0,0 +1,43 @@
+#if (OBI_BURST && OBI_MATHEMATICS && OBI_COLLECTIONS)
+using UnityEngine;
+using Unity.Jobs;
+using Unity.Collections;
+using Unity.Mathematics;
+using Unity.Burst;
+using System;
+using System.Collections;
+
+namespace Obi
+{
+    [BurstCompile]
+    struct UpdateNormalsJob : IJob
+    {
+        [ReadOnly] public NativeList<int> deformableTriangles;
+        [ReadOnly] public NativeArray<float4> renderPositions;
+        public NativeArray<float4> normals;
+
+        public void Execute()
+        {
+            for (int i = 0; i < normals.Length; ++i)
+                normals[i] = float4.zero;
+
+            // Accumulate normals:
+            for (int i = 0; i < deformableTriangles.Length; i += 3)
+            {
+                float4 v1 = renderPositions[deformableTriangles[i]];
+                float4 v2 = renderPositions[deformableTriangles[i + 1]];
+                float4 v3 = renderPositions[deformableTriangles[i + 2]];
+
+                float4 n = new float4(math.cross((v2 - v1).xyz, (v3 - v1).xyz), 0);
+
+                normals[deformableTriangles[i]] += n;
+                normals[deformableTriangles[i + 1]] += n;
+                normals[deformableTriangles[i + 2]] += n;
+            }
+
+            for (int i = 0; i < normals.Length; ++i)
+                normals[i] = math.normalizesafe(normals[i]);
+        }
+    }
+}
+#endif