Render entire scene normals I'd like to render a normal map for an entire scene (for a large background for an isometric game). I tried exporting the "Normal" pass of my render layer, but it's not quite right. Here's what I get from a cylinder:



For comparison, here's more what I (not to mention the game engine) was expecting:



I've seen tutorials on normal maps, but they are all about baking one object's geometry onto a simplified model. Is there an easy way to render a normal map for an entire scene, to line up with the standard combined render?
Got it! As I thought, Blender's normal pass contains exactly the right data, but it's not in the right format.  From a video intending to use the normal pass in After Effects' "Normality" plugin, I found that it's easy to convert Blender's colors to the standard colors using the node editor:

(This node setup is for Blender Render, not Cycles. For a Cycles solution see this answer.)