diff --git a/src/DotRecast.Recast.Toolset/Tools/RcObstacleTool.cs b/src/DotRecast.Recast.Toolset/Tools/RcObstacleTool.cs
index 8a5fbf1..0596ce1 100644
--- a/src/DotRecast.Recast.Toolset/Tools/RcObstacleTool.cs
+++ b/src/DotRecast.Recast.Toolset/Tools/RcObstacleTool.cs
@@ -33,18 +33,20 @@ namespace DotRecast.Recast.Toolset.Tools
                 //m_ctx->log(RC_LOG_ERROR, "buildTiledNavigation: No vertices and triangles.");
                 return false;
             }
-            
+
             _proc.Init(geom);
-            
+
             // Init cache
             var bmin = geom.GetMeshBoundsMin();
             var bmax = geom.GetMeshBoundsMax();
             RcUtils.CalcGridSize(bmin, bmax, setting.cellSize, out var gw, out var gh);
             int ts = setting.tileSize;
-            int tw = (gw + ts-1) / ts;
-            int th = (gh + ts-1) / ts;
-            
+            int tw = (gw + ts - 1) / ts;
+            int th = (gh + ts - 1) / ts;
+
             // Generation params.
+            var cfg = RcConfig.NewBuilder()
+                .Build();
             // RcConfig cfg = new RcConfig();
             // cfg.cs = m_cellSize;
             // cfg.ch = m_cellHeight;
diff --git a/src/DotRecast.Recast/RcConfig.cs b/src/DotRecast.Recast/RcConfig.cs
index 09dc38d..8415d57 100644
--- a/src/DotRecast.Recast/RcConfig.cs
+++ b/src/DotRecast.Recast/RcConfig.cs
@@ -114,7 +114,12 @@ namespace DotRecast.Recast
         public readonly float WalkableClimbWorld;
         public readonly float WalkableRadiusWorld;
         public readonly float MaxEdgeLenWorld;
-        
+
+        public static RcConfigBuilder NewBuilder()
+        {
+            return new RcConfigBuilder();
+        }
+
         /**
          * Non-tiled build configuration
          */
diff --git a/src/DotRecast.Recast/RcConfigBuilder.cs b/src/DotRecast.Recast/RcConfigBuilder.cs
new file mode 100644
index 0000000..4098bb9
--- /dev/null
+++ b/src/DotRecast.Recast/RcConfigBuilder.cs
@@ -0,0 +1,191 @@
+namespace DotRecast.Recast
+{
+    public class RcConfigBuilder
+    {
+        private int _partition;
+        private bool _useTiles;
+        private int _tileSizeX;
+        private int _tileSizeZ;
+        private float _cs;
+        private float _ch;
+        private float _agentMaxSlope;
+        private int _agentHeight;
+        private int _agentMaxClimb;
+        private int _agentRadius;
+        private int _edgeMaxLen;
+        private float _edgeMaxError;
+        private int _minRegionArea;
+        private int _mergeRegionArea;
+        private int _vertsPerPoly;
+        private float _detailSampleDist;
+        private float _detailSampleMaxError;
+        private RcAreaModification _walkableAreaMod;
+        private bool _filterLowHangingObstacles;
+        private bool _filterLedgeSpans;
+        private bool _filterWalkableLowHeightSpans;
+
+        // ..
+        private bool _buildMeshDetail;
+        private int _borderSize;
+        private float _minRegionAreaWorld;
+        private float _mergeRegionAreaWorld;
+        private float _walkableHeightWorld;
+        private float _walkableClimbWorld;
+        private float _walkableRadiusWorld;
+        private float _maxEdgeLenWorld;
+
+        public RcConfigBuilder WithPartition(int partition)
+        {
+            _partition = partition;
+            return this;
+        }
+
+        public RcConfigBuilder WithUseTiles(bool useTiles)
+        {
+            _useTiles = useTiles;
+            return this;
+        }
+
+        public RcConfigBuilder WithTileSizeX(int tileSizeX)
+        {
+            _tileSizeX = tileSizeX;
+            return this;
+        }
+
+        public RcConfigBuilder WithTileSizeZ(int tileSizeZ)
+        {
+            _tileSizeZ = tileSizeZ;
+            return this;
+        }
+
+        public RcConfigBuilder WithCell(float cs)
+        {
+            _cs = cs;
+            return this;
+        }
+
+        public RcConfigBuilder WithCh(float ch)
+        {
+            _ch = ch;
+            return this;
+        }
+
+        public RcConfigBuilder WithWalkableSlopeAngle(float walkableSlopeAngle)
+        {
+            _agentMaxSlope = walkableSlopeAngle;
+            return this;
+        }
+
+        public RcConfigBuilder WithWalkableHeight(int walkableHeight)
+        {
+            _agentHeight = walkableHeight;
+            return this;
+        }
+
+        public RcConfigBuilder WithWalkableClimb(int walkableClimb)
+        {
+            _agentMaxClimb = walkableClimb;
+            return this;
+        }
+
+        public RcConfigBuilder WithWalkableRadius(int walkableRadius)
+        {
+            _agentRadius = walkableRadius;
+            return this;
+        }
+
+        public RcConfigBuilder WithMaxEdgeLen(int maxEdgeLen)
+        {
+            _edgeMaxLen = maxEdgeLen;
+            return this;
+        }
+
+        public RcConfigBuilder WithMaxSimplificationError(float maxSimplificationError)
+        {
+            _edgeMaxError = maxSimplificationError;
+            return this;
+        }
+
+        public RcConfigBuilder WithMinRegionArea(int minRegionArea)
+        {
+            _minRegionArea = minRegionArea;
+            return this;
+        }
+
+        public RcConfigBuilder WithMergeRegionArea(int mergeRegionArea)
+        {
+            _mergeRegionArea = mergeRegionArea;
+            return this;
+        }
+
+        public RcConfigBuilder WithMaxVertsPerPoly(int maxVertsPerPoly)
+        {
+            _vertsPerPoly = maxVertsPerPoly;
+            return this;
+        }
+
+        public RcConfigBuilder WithDetailSampleDist(float detailSampleDist)
+        {
+            _detailSampleDist = detailSampleDist;
+            return this;
+        }
+
+        public RcConfigBuilder WithDetailSampleMaxError(float detailSampleMaxError)
+        {
+            _detailSampleMaxError = detailSampleMaxError;
+            return this;
+        }
+
+        public RcConfigBuilder WithWalkableAreaMod(RcAreaModification walkableAreaMod)
+        {
+            _walkableAreaMod = walkableAreaMod;
+            return this;
+        }
+
+        public RcConfigBuilder WithFilterLowHangingObstacles(bool filterLowHangingObstacles)
+        {
+            _filterLowHangingObstacles = filterLowHangingObstacles;
+            return this;
+        }
+
+        public RcConfigBuilder WithFilterLedgeSpans(bool filterLedgeSpans)
+        {
+            _filterLedgeSpans = filterLedgeSpans;
+            return this;
+        }
+
+        public RcConfigBuilder WithFilterWalkableLowHeightSpans(bool filterWalkableLowHeightSpans)
+        {
+            _filterWalkableLowHeightSpans = filterWalkableLowHeightSpans;
+            return this;
+        }
+
+        public RcConfig Build()
+        {
+            return new RcConfig(
+                _useTiles,
+                _tileSizeX,
+                _tileSizeZ,
+                _borderSize,
+                RcPartition.LAYERS, // _partition
+                _cs,
+                _ch,
+                _agentMaxSlope,
+                _filterLowHangingObstacles,
+                _filterLedgeSpans,
+                _filterWalkableLowHeightSpans,
+                _agentHeight,
+                _agentRadius,
+                _agentMaxClimb,
+                _minRegionArea,
+                _mergeRegionArea,
+                _edgeMaxLen,
+                _edgeMaxError,
+                _vertsPerPoly,
+                _buildMeshDetail,
+                _detailSampleDist,
+                _detailSampleMaxError,
+                _walkableAreaMod);
+        }
+    }
+}
\ No newline at end of file