Bump Texture Channel – Most commonly used for the Round Edges effect (Edges texture used as bump).
Normal Map – Requires an RGB map. If a Bitmap texture is slotted, its color space must be set to Rendering Space (Linear).
Local Space Bump – A height map should be used. Unlike the standard Bump mode, in this case the height is not measured in scene units. It is only determined by the raw texture values. Scaling objects will not affect the local space effect. This option has to be selected for the round edges effect (Edges texture used as bump).
