Unreal

Note: Results may not be as expected if you do not use the Environment Light in the Lights palette when using this shader.

Control	Type	What it does	Dialog	Notes
Inputs \| Base Color	dropdown	The channel controlling the overall diffuse color of the material.
Inputs \| Roughness	dropdown	The channel controlling how rough the material is. Rough materials scatter reflected light in more directions than smooth materials.
Inputs \| Metallic	dropdown	The channel specifying the areas on the material that have a metallic effect, with results being determined by values between 0 and 1.
Inputs \| Specular	dropdown	The channel specifying the non-metallic areas on the material where the specularity is visible.
Inputs \| Ambient Occlusion	dropdown	The channel used to specify the self-shadowing that occurs on an occluded object.
Inputs \| Normal	dropdown	The channel containing the Normal map, used to give additional physical details to a surface.
Inputs \| Bump	dropdown	The channel containing the bump map to show as a perturbed lighting.
	button	Inverts the channel values of the selected channel.
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 containing 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
Displacement \| Displacement Bias	entry box, slider	How much the white or black values are pushed or pulled from the surface.		From 0.000 to 1.000; defaults to 0.500.
Displacement \| Displacement Scale	entry box, slider	How much displacement is applied to the shaded surface. Lower values equal smaller displacement; higher values equal larger and more obvious displacement.		From 0.000 to 1.000; defaults to 0.500.
Displacement \| Displacement Range	entry box	What the range of displacement is. This setting is multiplied by the Displacement Scale to give the displacement.
Displacement \| Max Tessellation	entry box, slider	How many texels the surface is tessellated to.		From 1.000 to 64.000; defaults to 10.000.
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 0.000 to 10.000; defaults to 0.100.
Bump\| Bump Mode	dropdown	Whether you want bump to be displayed quickly (Fast) or accurately (Accurate).		By default, Bump Mode is set to Fast.
*Bump* \|Bump Space	dropdown	UV - Normals are calculated relative to the UV coordinates space. The UV Bump Space mode is the more traditional approach but can lead to noticeable seams and color variations. World - Normals are calculated relative to the World coordinates space. Using the World Bump Space mode gives a more seamless result.		By default, Bump Space is set to UV.

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