PBR Master Node
Description
A Master Node for physically based rendering. Can be used in either Metallic or Specular workflow modes as defined by the Workflow dropdown parameter.
Values supplied to the input Normal are expected to be in tangent space. Use the Transform Node to convert to tangent space.
Ports
| Name | Direction | Type | Stage | Binding | Description |
|---|---|---|---|---|---|
| Position | Input | Vector 3 | Vertex | None | Defines the absolute object space vertex position per vertex |
| Albedo | Input | Vector 3 | Fragment | None | Defines material's albedo value. Expected range 0 - 1. |
| Normal | Input | Vector 3 | Fragment | Tangent Space Normal | Defines material's normal value. Expects normals in tangent space. |
| Emission | Input | Vector 3 | Fragment | None | Defines material's emission color value. Expects positive values. |
| Metallic | Input | Vector 1 | Fragment | None | Defines material's metallic value where 0 is non-metallic and 1 is metallic. Only available in Metallic Workflow mode. |
| Specular | Input | Vector 3 | Fragment | None | Defines material's specular color value. Expected range 0 - 1. Only available in Specular Workflow mode. |
| Smoothness | Input | Vector 1 | Fragment | None | Defines material's smoothness value. Expected range 0 - 1. |
| Occlusion | Input | Vector 1 | Fragment | None | Defines material's ambient occlusion value. Expected range 0 - 1. |
| Alpha | Input | Vector 1 | Fragment | None | Defines material's alpha value. Used for transparency and/or alpha clip. Expected range 0 - 1. |
| Alpha Clip Threshold | Input | Vector 1 | Fragment | None | Fragments with an alpha below this value will be discarded. Requires a node connection. Expected range 0 - 1. |
Material Options
PBR Master Node material options can be accessed by clicking the cog icon in the top right corner of the PBR Master Node.
| Name | Type | Options | Description |
|---|---|---|---|
| Workflow | Dropdown | Metallic, Specular | Defines workflow mode for the material |
| Surface | Dropdown | Opaque, Transparent | Defines if the material is transparent |
| Blend | Dropdown | Alpha, Premultiply, Additive, Multiply | Defines blend mode of a transparent material |
| Two Sided | Toggle | True, False | If true both front and back faces of the mesh are rendered |