Location: Nodes > Illumination > More > mental images
Shader Type: Surface
Output: Color (RGB) value
Bump mapping is a powerful tool for suggesting geometric detail when such detail would be impractical as actual geometry. Two situations in particular cause a bump mapped surface to look fake: when the profile edge of the surface looks too smooth, and when shadows falling on the surface look too smooth.
The Lume Edge shader remedies the first of these problems by roughening or blurring an object's profile edge. The Lume Edge Shadow shader remedies the second problem by roughening the edges of shadows falling onto the object.
Lume Edge works by making the object transparent at its profile edges. You can control how much of the edge should become transparent, how blurry the edge should be, what kind of noise affects the edge, and how the surface color affects the edge.
Note that Lume Edge only works on “profile” edges, that is, edges that curve away from the camera. For example, Lume Edge applied to a cube would have no effect. Also note that this shader does not work on concave objects.
General
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Amount |
Controls how much of the edge is transparent, and thereby how rough the edge will appear to be. Larger values cause deeper cuts into the profile, while smaller values cause less of an effect. A value of 0.0 essentially disables the entire effect. |
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Blur |
Controls the fuzziness of the edge. A value of 0.0 gives a sharp edge line, while a value of 1.0 will cause the entire edge region to be blurred. |
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Relative to Object |
Controls whether the edge effects are relative to the object coordinate system. |
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Relative to World |
Controls whether the edge effects are relative to the world coordinate system. |
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Surface Color |
Controls the surface color of the edge. |
Profile Noise Effect
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Noise Influence |
Controls whether or not the irregular edge profile is influenced by noise. |
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Influence |
Sets the relative influence the Noise effect will have on the profile edge, as compared to the Color effect. When specifying Influences, the ratio of the influences is all that is important. |
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Roughness |
Controls the amount of noise for the edge profile. |
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Scale |
Controls the size of the largest clusters of noise. |
Profile Color Effect
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Diffuse Influence |
Controls whether or not the irregular edge profile is influenced by the diffuse color. |
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Influence |
Sets the relative influence of the effect (see above). |
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Diffuse Color |
The same color used by the illumination shader. |
Autodesk Softimage v.7.5