Choose Diffuse/Specular: Minnaert: Beckman

Control	Type	What it does	Dialog	Notes
Inputs \| Diffuse Color	dropdown	The channel controlling the diffuse color effect of the shaded surface.
Inputs \| Specular Color	dropdown	The channel controlling the specular color effect of the shaded surface.
Inputs \| Specular Roughness	dropdown	The channel controlling the rough shaded surface for specularity.
	button	Inverts the channel values of the selected channel.
Inputs \| Normal	dropdown	The channel used for input as a representation of the surface normals, added to the shaded surface.		You must select either a Bump or Normal shader component in the same shader. If you attempt to use both, Normal overrides the Bump shader component.
Inputs \| Bump	dropdown	The channel controlling the bump map to show as a perturbed lighting.
Inputs \| Environment Color	dropdown	The channel controlling the reflective surface, using an image in a channel as the reflection, on the shaded surface.
Inputs \| Ambient Occlusion	dropdown	The channel controlling the ambient occlusion effect of the shaded surface. Using this input overrides the ambient occlusion values stored on the object (Objects > Ambient Occlusion).
Inputs \| Emissive Color	dropdown	The channel controlling the color of the emissive (glow) qualities on the shaded surface.
Inputs \| Vector	dropdown	The channel controlling the vector field and resulting vector data from paint on the shaded surface.		This data is used by the vector inspector.
Inputs \| Displacement	dropdown	The channel controlling the displacement map and dynamic tessellation to show a more advanced preview of displacement.		This component is disabled for Ptex channels.
	button	Adds a new channel for the shader component.	Add Channel Dialog
Diffuse	entry box, slider	How much of the diffuse input appears on the shaded surface.		From 0 to 2; defaults to 1.
Specular	entry box, slider	How much of the specular light appears on the shaded surface.		From 0 to 2; defaults to 1.
Specular Roughness	entry box, slider	How “rough” the surface is by default. Rougher surfaces have the highlight spread more across the surface. Lower values mean the surface is smoother (specular lights are more concentrated), higher values mean it is rougher (specular lights are spread out more).		From 0 to 1; defaults to 0.700.
Environment	entry box, slider	How much of the environment appears on the shaded surface.		From 0 to 2; defaults to 1.
Ambient	entry box, slider	How much ambient light appears on the shaded surface.		From 0 to 2; defaults to 0.200.
Ambient Occlusion	entry box, slider	How much ambient occlusion occurs on the shaded surface.		From 0 to 2; defaults to 1.
Emissive	entry box, slider	How much glow the emissive channel appears to have.		From 0 to 2; defaults to 1.
Diffuse Falloff	entry box, slider	How much falloff is given to the diffuse input.		From 0 to 5; defaults to 1.
Displacement \| Displacement Bias	entry box, slider	How much the white or black values are pushed or pulled from the surface.		From 0 to 1; defaults to 0.500.
Displacement \| Displacement Scale	entry box, slider	What the range of displacement is. This setting is multiplied by the Displacement Scale to give the displacement.
Displacement \| Displacement Range	entry box	How much displacement is applied to the shaded surface. Lower values equal smaller displacement; higher values equal larger and more obvious displacement.		From 0 to 1; defaults to 0.500.
Displacement \| Max Tessellation	entry box, slider	How many texels the surface is tessellated to.		From 1 to 64; defaults to 10.
Displacement \| Perturb Normals	dropdown	Selecting yes changes the displacement so that displacement moves the surface but leaves the surface normals as they are.
Bump \| Bump Weight	entry box, slider	How much weight the bump map has. Lower values are smaller bumps, higher values are larger and more obvious displacements.		From 0 to 10; defaults to 0.100.
Bump\| Bump Mode	dropdown	Whether you want bump to be displayed quickly (Fast) or accurately (Accurate).

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