Firstborn/Library/PackageCache/com.unity.shadergraph@12.1.11/Documentation~/ThreadMapDetail-Node.md

ThreadMapDetail node

The ThreadMapDetail node adds tileable thread map detail information to a fabric material. The node outputs a thread map that you can apply to a fabric material.

[!includenodes-subgraph-node]

A thread map is a Texture with 4 channels. Like a detail map, a thread map contains information about ambient occlusion, the normal x-axis and normal y-axis, and smoothness.

For more information on Detail maps, see Secondary Maps (Detail Maps) & Detail Mask in the Unity User Manual.

Create Node menu category

The ThreadMapDetail node is under the Utility > High Definition Render Pipeline > Fabric category in the Create Node menu.

Compatibility

[!includenodes-compatibility-hdrp]

[!includehdrp-latest-link]

[!includenodes-all-contexts]

Inputs

[!includenodes-inputs]

Name	Type	Binding	Description
Use Thread Map	Boolean	None	Use the port's default input to enable or disable the ThreadMapDetail node. You can also connect a node that outputs a Boolean to choose when to enable or disable the thread map.
ThreadMap	Texture 2D	None	The texture that contains the detailed information of a fabric's thread pattern. The texture should contain 4 channels: R - The ambient occlusion G - The normal Y-axis B - The smoothness A - The normal X-axis
UV	Vector 2	UV	The UV coordinates the ThreadMapDetail node should use to map the ThreadMap texture on the geometry.
Normals	Vector 3	None	The base normal map that you want your Shader Graph to apply to the geometry before it applies the thread map.
Smoothness	Float	None	The base smoothness value that you want your Shader Graph to apply to the geometry before it applies the thread map.
Alpha	Float	None	The base alpha value that you want your Shader Graph to apply to the geometry before it applies the thread map.
Ambient Occlusion	Float	None	The base ambient occlusion value that you want your Shader Graph to apply to the geometry before it applies the thread map.
Thread AO Strength	Float	None	Specify a value of 0 or 1 to determine how the ThreadMap's ambient occlusion should impact the final shader result: If you provide a value of 0, the ThreadMap's ambient occlusion has no effect on the final output of the shader. If you provide a value of 1, Shader Graph multiplies your base Ambient Occlusion value by the ambient occlusion value specified in your ThreadMap to determine the final output of the shader.
Thread Normal Strength	Float	None	Specify a value of 0 or 1 to determine how the ThreadMap's normal should impact the final shader result: If you provide a value of 0, the ThreadMap's normal has no effect on the final output of the shader. If you provide a value of 1, Shader Graph blends the values from your base Normals with the normal specified in your ThreadMap to determine the final output of the shader.
Thread Smoothness Strength	Float	None	Specify a value of 0 or 1 to determine how the ThreadMap's smoothness should impact the final shader result: If you provide a value of 0, the ThreadMap's smoothness value has no effect on the final output of the shader. If you provide a value of 1, Shader Graph adds the smoothness value specified in your ThreadMap to your base Smoothness value to determine the final output of the shader. For this calculation, Shader Graph remaps the value of your ThreadMap's smoothness from (0,1) to (-1, 1).

Outputs

[!includenodes-outputs]

Name	Type	Description
Normal	Vector 3	The final normal output of the thread map.
Smoothness	Float	The final smoothness output of the thread map.
Ambient Occlusion	Float	The final ambient occlusion output of the thread map.
Alpha	Float	The final alpha output of the thread map. Shader Graph calculates this alpha value by multiplying the input Alpha value by the Thread AO Strength value.

Example graph usage

For an example use of the ThreadMapDetail node, see either of the HDRP's Fabric shaders.

To view these Shader Graphs:

1. Create a new material and assign it the HDRP > Fabric > Silk or HDRP > Fabric > CottonWool shader, as described in the Unity User Manual section Creating a material asset, and assigning a shader to it.

2. Next to the Shader dropdown, select Edit.

Your chosen Fabric's Shader Graph opens. You can view the ThreadMapDetail node, its Subgraph, and the other nodes that create HDRP's Fabric shaders.