diff --git a/src/DotRecast.Detour.Dynamic/Colliders/AbstractCollider.cs b/src/DotRecast.Detour.Dynamic/Colliders/AbstractCollider.cs
index a636a62..883362a 100644
--- a/src/DotRecast.Detour.Dynamic/Colliders/AbstractCollider.cs
+++ b/src/DotRecast.Detour.Dynamic/Colliders/AbstractCollider.cs
@@ -38,9 +38,6 @@ namespace DotRecast.Detour.Dynamic.Colliders
             return _bounds;
         }
 
-        public void rasterize(Heightfield hf, Telemetry telemetry)
-        {
-            ///?
-        }
+        public abstract void rasterize(Heightfield hf, Telemetry telemetry);
     }
 }
\ No newline at end of file
diff --git a/src/DotRecast.Detour.Dynamic/Colliders/BoxCollider.cs b/src/DotRecast.Detour.Dynamic/Colliders/BoxCollider.cs
index 8080c6d..28b0c4e 100644
--- a/src/DotRecast.Detour.Dynamic/Colliders/BoxCollider.cs
+++ b/src/DotRecast.Detour.Dynamic/Colliders/BoxCollider.cs
@@ -60,7 +60,7 @@ namespace DotRecast.Detour.Dynamic.Colliders
             return bounds;
         }
 
-        public void rasterize(Heightfield hf, Telemetry telemetry)
+        public override void rasterize(Heightfield hf, Telemetry telemetry)
         {
             RecastFilledVolumeRasterization.rasterizeBox(
                 hf, center, halfEdges, area, (int)Math.Floor(flagMergeThreshold / hf.ch), telemetry);
diff --git a/src/DotRecast.Detour.Dynamic/Colliders/CapsuleCollider.cs b/src/DotRecast.Detour.Dynamic/Colliders/CapsuleCollider.cs
index 5e7cca6..18163b3 100644
--- a/src/DotRecast.Detour.Dynamic/Colliders/CapsuleCollider.cs
+++ b/src/DotRecast.Detour.Dynamic/Colliders/CapsuleCollider.cs
@@ -36,7 +36,7 @@ namespace DotRecast.Detour.Dynamic.Colliders
             this.radius = radius;
         }
 
-        public void rasterize(Heightfield hf, Telemetry telemetry)
+        public override void rasterize(Heightfield hf, Telemetry telemetry)
         {
             RecastFilledVolumeRasterization.rasterizeCapsule(hf, start, end, radius, area, (int)Math.Floor(flagMergeThreshold / hf.ch),
                 telemetry);
diff --git a/src/DotRecast.Detour.Dynamic/Colliders/ConvexTrimeshCollider.cs b/src/DotRecast.Detour.Dynamic/Colliders/ConvexTrimeshCollider.cs
index ba5f463..90c6c56 100644
--- a/src/DotRecast.Detour.Dynamic/Colliders/ConvexTrimeshCollider.cs
+++ b/src/DotRecast.Detour.Dynamic/Colliders/ConvexTrimeshCollider.cs
@@ -40,7 +40,7 @@ namespace DotRecast.Detour.Dynamic.Colliders
             this.triangles = triangles;
         }
 
-        public void rasterize(Heightfield hf, Telemetry telemetry)
+        public override void rasterize(Heightfield hf, Telemetry telemetry)
         {
             RecastFilledVolumeRasterization.rasterizeConvex(hf, vertices, triangles, area,
                 (int)Math.Floor(flagMergeThreshold / hf.ch), telemetry);
diff --git a/src/DotRecast.Detour.Dynamic/Colliders/CylinderCollider.cs b/src/DotRecast.Detour.Dynamic/Colliders/CylinderCollider.cs
index 59a7cc9..77e0f45 100644
--- a/src/DotRecast.Detour.Dynamic/Colliders/CylinderCollider.cs
+++ b/src/DotRecast.Detour.Dynamic/Colliders/CylinderCollider.cs
@@ -36,7 +36,7 @@ namespace DotRecast.Detour.Dynamic.Colliders
             this.radius = radius;
         }
 
-        public void rasterize(Heightfield hf, Telemetry telemetry)
+        public override void rasterize(Heightfield hf, Telemetry telemetry)
         {
             RecastFilledVolumeRasterization.rasterizeCylinder(hf, start, end, radius, area, (int)Math.Floor(flagMergeThreshold / hf.ch),
                 telemetry);
diff --git a/src/DotRecast.Detour.Dynamic/Colliders/SphereCollider.cs b/src/DotRecast.Detour.Dynamic/Colliders/SphereCollider.cs
index b4d0e90..cb786ec 100644
--- a/src/DotRecast.Detour.Dynamic/Colliders/SphereCollider.cs
+++ b/src/DotRecast.Detour.Dynamic/Colliders/SphereCollider.cs
@@ -34,7 +34,7 @@ namespace DotRecast.Detour.Dynamic.Colliders
             this.radius = radius;
         }
 
-        public void rasterize(Heightfield hf, Telemetry telemetry)
+        public override void rasterize(Heightfield hf, Telemetry telemetry)
         {
             RecastFilledVolumeRasterization.rasterizeSphere(hf, center, radius, area, (int)Math.Floor(flagMergeThreshold / hf.ch),
                 telemetry);
diff --git a/src/DotRecast.Detour.Dynamic/Colliders/TrimeshCollider.cs b/src/DotRecast.Detour.Dynamic/Colliders/TrimeshCollider.cs
index 4d2bdd7..3327917 100644
--- a/src/DotRecast.Detour.Dynamic/Colliders/TrimeshCollider.cs
+++ b/src/DotRecast.Detour.Dynamic/Colliders/TrimeshCollider.cs
@@ -56,7 +56,7 @@ namespace DotRecast.Detour.Dynamic.Colliders
             return bounds;
         }
 
-        public void rasterize(Heightfield hf, Telemetry telemetry)
+        public override void rasterize(Heightfield hf, Telemetry telemetry)
         {
             for (int i = 0; i < triangles.Length; i += 3)
             {