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Scale the frequency of the feature uniformly in 3D.

Use

Select the type of position you want to use.

 

 UsageValueDefault variable
Current position: PUse the current (displaced) surface position0P
Undisplaced position: PoUse the surface position before it was displaced1Po

Deform : __Pref

Use a reference position primitive variable in object space2__Pref
Deform & transform: __WPrefUse a reference position primitive variable in world space3__WPref
Note

You can only use __Pref and __WPref if these primitive variables have been attached to your geometry.

Why use the un-displaced position ?

When using the same 3d noise in the BxDF and the displacement, you should use Po to make sure the patterns are lining up.

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rightImageimage_galleries_uuid_pxrmanifold3d_dispp.jpg-b66a550d-2a96-4977-b34a-c1f21fa4c9dc
 
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                                   Bad: using P                                                                   Good: using Po

Pref

Name of geometry Pref (Maya uses __Pref and __WPref). Default is P 

Note

This field is only used when Use is set to "Deform : __Pref" or "Deform & transform: __WPref".

If left empty, we assume either __Pref or __WPref, based on the current Use settings.

Coordinate System

Name of a coordinate system transform to apply to the manifold. (Maya calls these place3d nodes).

Info

If left empty, we use the position in object-space, as this is what you need for non-deforming objects.

Output Parameters

result

The 3D manifold.

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