Disable debug visualization of terrain patch bounding boxes, as it slows down the editor and does not have much visual usability.

Bin/Data/Scripts/Editor/EditorView.as

@@ -1397,8 +1397,9 @@ void DrawNodeDebug(Node@ node, DebugRenderer@ debug, bool drawNode = true)
         debug.AddNode(node, 1.0, false);
 
     // Exception for the scene to avoid bringing the editor to its knees: drawing either the whole hierarchy or the subsystem-
-    // components can have a large performance hit
-    if (node !is editorScene)
+    // components can have a large performance hit. Also do not draw terrain child nodes due to their large amount
+    // (TerrainPatch component itself draws nothing as debug geometry)
+    if (node !is editorScene && node.GetComponent("Terrain") is null)
     {
         for (uint j = 0; j < node.numComponents; ++j)
             node.components[j].DrawDebugGeometry(debug, false);

Source/Engine/Graphics/TerrainPatch.cpp

@@ -206,6 +206,12 @@ bool TerrainPatch::DrawOcclusion(OcclusionBuffer* buffer)
         minLodGeometry_->GetIndexCount());
 }
 
+void TerrainPatch::DrawDebugGeometry(DebugRenderer* debug, bool depthTest)
+{
+    // Intentionally no action
+}
+
+
 void TerrainPatch::SetOwner(Terrain* terrain)
 {
     owner_ = terrain;

Source/Engine/Graphics/TerrainPatch.h

@@ -58,6 +58,8 @@ public:
     virtual unsigned GetNumOccluderTriangles();
     /// Draw to occlusion buffer. Return true if did not run out of triangles.
     virtual bool DrawOcclusion(OcclusionBuffer* buffer);
+    /// Visualize the component as debug geometry.
+    virtual void DrawDebugGeometry(DebugRenderer* debug, bool depthTest);
     
     /// Set owner terrain.
     void SetOwner(Terrain* terrain);