1 files changed, 23 insertions, 0 deletions

diff --git a/js/lib/rdge/materials/material.js b/js/lib/rdge/materials/material.js
index c1d13b15..157fa7db 100755
--- a/js/lib/rdge/materials/material.js
+++ b/js/lib/rdge/materials/material.js
@@ -252,6 +252,29 @@ var Material = function GLMaterial( world ) {
                 return tex;
         };
 
+    this.findWorld = function( id,  elt )
+    {
+        if (elt.id && elt.id === id)
+        {
+            if (elt.elementModel && elt.elementModel.shapeModel && elt.elementModel.shapeModel.GLWorld)
+            {
+                var world = elt.elementModel.shapeModel.GLWorld;
+                return world;
+            }
+        }
+ 
+                if (elt.children)
+                {
+                        var nKids = elt.children.length;
+                        for (var i=0;  i<nKids;  i++)
+                        {
+                                var child = elt.children[i];
+                                var world = this.findWorld( id, child );
+                if (world)  return world;
+                        }
+                }
+   }
+
         this.export = function() {
                 // this function should be overridden by subclasses
                 var exportStr = "material: " + this.getShaderName() + "\n" + "endMaterial\n";