diff --git a/src/DotRecast.Core/Numerics/RcVec.cs b/src/DotRecast.Core/Numerics/RcVec.cs
index 6753661..33c473f 100644
--- a/src/DotRecast.Core/Numerics/RcVec.cs
+++ b/src/DotRecast.Core/Numerics/RcVec.cs
@@ -6,7 +6,7 @@ namespace DotRecast.Core.Numerics
     public static class RcVec
     {
         public const float EPSILON = 1e-6f;
-        private static readonly float EQUAL_THRESHOLD = RcMath.Sqr(1.0f / 16384.0f);
+        public static readonly float EQUAL_THRESHOLD = RcMath.Sqr(1.0f / 16384.0f);
 
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
         public static RcVec3f Create(Span<float> values, int n)
diff --git a/src/DotRecast.Detour/DtConvexConvexIntersections.cs b/src/DotRecast.Detour/DtConvexConvexIntersections.cs
index f66fa61..7537679 100644
--- a/src/DotRecast.Detour/DtConvexConvexIntersections.cs
+++ b/src/DotRecast.Detour/DtConvexConvexIntersections.cs
@@ -28,7 +28,7 @@ namespace DotRecast.Detour
  */
     public static class DtConvexConvexIntersections
     {
-        private static readonly float EPSILON = 0.0001f;
+        private const float EPSILON = 0.0001f;
 
         public static float[] Intersect(float[] p, float[] q)
         {
diff --git a/src/DotRecast.Recast.Demo/Draw/DebugDraw.cs b/src/DotRecast.Recast.Demo/Draw/DebugDraw.cs
index 4bd293a..97a5e09 100644
--- a/src/DotRecast.Recast.Demo/Draw/DebugDraw.cs
+++ b/src/DotRecast.Recast.Demo/Draw/DebugDraw.cs
@@ -326,9 +326,9 @@ public class DebugDraw
         }
     }
 
-    private static readonly int NUM_ARC_PTS = 8;
-    private static readonly float PAD = 0.05f;
-    private static readonly float ARC_PTS_SCALE = (1.0f - PAD * 2) / NUM_ARC_PTS;
+    private const int NUM_ARC_PTS = 8;
+    private const float PAD = 0.05f;
+    private const float ARC_PTS_SCALE = (1.0f - PAD * 2) / NUM_ARC_PTS;
 
     public void AppendArc(float x0, float y0, float z0, float x1, float y1, float z1, float h, float as0, float as1, int col)
     {
diff --git a/src/DotRecast.Recast.Demo/Draw/RecastDebugDraw.cs b/src/DotRecast.Recast.Demo/Draw/RecastDebugDraw.cs
index 00203bb..e97d9f3 100644
--- a/src/DotRecast.Recast.Demo/Draw/RecastDebugDraw.cs
+++ b/src/DotRecast.Recast.Demo/Draw/RecastDebugDraw.cs
@@ -33,9 +33,9 @@ using static DtDetour;
 
 public class RecastDebugDraw : DebugDraw
 {
-    public static readonly int DU_DRAWNAVMESH_OFFMESHCONS = 0x01;
-    public static readonly int DU_DRAWNAVMESH_CLOSEDLIST = 0x02;
-    public static readonly int DU_DRAWNAVMESH_COLOR_TILES = 0x04;
+    public const int DU_DRAWNAVMESH_OFFMESHCONS = 0x01;
+    public const int DU_DRAWNAVMESH_CLOSEDLIST = 0x02;
+    public const int DU_DRAWNAVMESH_COLOR_TILES = 0x04;
 
     public RecastDebugDraw(GL gl) : base(gl)
     {
diff --git a/src/DotRecast.Recast.Toolset/Builder/SampleAreaModifications.cs b/src/DotRecast.Recast.Toolset/Builder/SampleAreaModifications.cs
index 47545e7..9269952 100644
--- a/src/DotRecast.Recast.Toolset/Builder/SampleAreaModifications.cs
+++ b/src/DotRecast.Recast.Toolset/Builder/SampleAreaModifications.cs
@@ -34,12 +34,12 @@ namespace DotRecast.Recast.Toolset.Builder
         public const int SAMPLE_POLYAREA_TYPE_JUMP_AUTO = 0x6;
         public const int SAMPLE_POLYAREA_TYPE_WALKABLE = 0x3f;
 
-        public static readonly int SAMPLE_POLYFLAGS_WALK = 0x01; // Ability to walk (ground, grass, road)
-        public static readonly int SAMPLE_POLYFLAGS_SWIM = 0x02; // Ability to swim (water).
-        public static readonly int SAMPLE_POLYFLAGS_DOOR = 0x04; // Ability to move through doors.
-        public static readonly int SAMPLE_POLYFLAGS_JUMP = 0x08; // Ability to jump.
-        public static readonly int SAMPLE_POLYFLAGS_DISABLED = 0x10; // Disabled polygon
-        public static readonly int SAMPLE_POLYFLAGS_ALL = 0xffff; // All abilities.
+        public const int SAMPLE_POLYFLAGS_WALK = 0x01; // Ability to walk (ground, grass, road)
+        public const int SAMPLE_POLYFLAGS_SWIM = 0x02; // Ability to swim (water).
+        public const int SAMPLE_POLYFLAGS_DOOR = 0x04; // Ability to move through doors.
+        public const int SAMPLE_POLYFLAGS_JUMP = 0x08; // Ability to jump.
+        public const int SAMPLE_POLYFLAGS_DISABLED = 0x10; // Disabled polygon
+        public const int SAMPLE_POLYFLAGS_ALL = 0xffff; // All abilities.
 
         public static readonly RcAreaModification SAMPLE_AREAMOD_WALKABLE = new RcAreaModification(SAMPLE_POLYAREA_TYPE_WALKABLE);
         public static readonly RcAreaModification SAMPLE_AREAMOD_GROUND = new RcAreaModification(SAMPLE_POLYAREA_TYPE_GROUND);
diff --git a/src/DotRecast.Recast.Toolset/Gizmos/RcGizmoHelper.cs b/src/DotRecast.Recast.Toolset/Gizmos/RcGizmoHelper.cs
index 72ce931..c814b27 100644
--- a/src/DotRecast.Recast.Toolset/Gizmos/RcGizmoHelper.cs
+++ b/src/DotRecast.Recast.Toolset/Gizmos/RcGizmoHelper.cs
@@ -4,8 +4,8 @@ namespace DotRecast.Recast.Toolset.Gizmos
 {
     public static class RcGizmoHelper
     {
-        private static readonly int SEGMENTS = 16;
-        private static readonly int RINGS = 8;
+        private const int SEGMENTS = 16;
+        private const int RINGS = 8;
 
         private static float[] sphericalVertices;