koobas.hobune.stream
Tangent Normal Map produces reversed effects
I've created Tangent Space normal maps in Blender (from hi-ploy sources) to apply to my objects. However when I bring the object into Unity and apply the map the textures appear reversed; concave areas appear convex etc. The Normals themselves are correct and render correctly in Blender.
How do I get the Normal Maps to display correctly?
Cheers
psullie
Blender uses the opposite Red and Green for normal maps. You have to flip the red and green channels to meet the industry standard.
http://forum.unity3d.com/threads/35110-Normal-mapping-flipped.?highlight=Normal+flipped
http://forum.unity3d.com/threads/23177-Normal-Maps-vs.-Hi-res-Meshes
http://wiki.blender.org/index.php/Doc:Manual/Render/Bake (At the bottom of the page)
Are you sure that's all that has to be done ? Cause I'm not getting the same result visually as in blender (with only flipping R and G). Overall it looks the same, but there are strange hard edges visible, it seems only in areas with normals that differ a lot from the the regular normal.
