Added interior mapping shading node.

README.md

@@ -43,6 +43,15 @@ support the asset workflow.
 
 > A kind of noise node, that is based on a voronoi pattern
 
+### [InteriorMapping](shadingNodes/interiorMapping.blend)
+
+<img src="shadingNodes/rooms/room_1x1_1002.png" height=200/>
+
+> This is a shading node, that computes texture coordinates to make an image of a rendered room, like above, having
+> depth. It can handle generating UVs for multiple rooms organized with UDIMs. The folder ` shadingNodes/rooms/`
+> contains 4 example rooms with 2 different sizes. The example scene demonstrates how to use them and also how to set up
+> the UVs of the quads representing the windows into the rooms.
+
 ## Full materials
 
 ### [Water](shadingNodes/water.blend)