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This page provides information on the Scatter subtab in the V-Ray Appearance Manager.

 

Overview

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The Scatter subtab allows for adding only selected families to the list which then are associated

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with V-Ray Scatter

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 created in the Asset Editor, and serve as its hosts. A common example would be picking a toposurface (or a floor, depending on how your Revit model is built) and scatter trees and planting on it.

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HTML
<iframe width="560" height="315" src="https://www.youtube.com/embed/dKIyppPkljw" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>

 

UI Path

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||Appearance Manager|| > Families tab > Scatter subtab

 

Search Bar and Filters

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Show Families

Filters the list of objects based on the following options:

All – Shows all families that are currently loaded into the Revit project file.

Used in project – Shows all families that are already placed into the Revit model.

Allows searching for specific family items by name or whole family categories. Search for Families by name or element ID in the Filter search bar. Selecting one or more families in the Revit viewport activates the filter as well.

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Adding Scatter Hosts

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The Scatter subtab loads empty prompting you to select a geometry from the Revit model and add it to the list.

Only the following family types can be selected as Scatter hosts:

Fancy Bullets
typecircle
  • Floor
  • Wall
  • Roof
  • Ceiling
  • Curtain System
  • Curtain Panels
  • Column
  • Ramp
  • Stair
  • Toposurface
  • Mass

The Add Scatter Hosts button adds the selected objects the the list. The button works in a two-way fashion:

  • select a geometry and click to add it;
  • or click the button, select a geometry and then press the Finish button which appears in the lower part of the Revit ribbon.

To delete a scatter host from the list, select it and then press the Delete key from your keyboard. When a Revit family instance, which has been added to the list, is deleted from the project itself, it would also be removed from the list.

The button allows for applying V-Ray Scatter created in the Asset Editor to the selected host family. The items to be scattered will only be visible at render time and only over the surface of the selected host. 

To remove the association between a Scatter and its host, use the Unassign V-Ray Scatter  button.

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Scatter Actions

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After scatter is associated with its host, control the scale and rotation range of the scattered objects from the designated sliders.

Scale – Specifies a scale range for the scattered objects.

Rotation – Specifies a rotation range for the scattered objects.

Scale Multiplier – Specifies a uniform scale multiplier for the scattered objects. This value is combined with the random scaling, so that once there is a suitable Scale range, it allows for scaling up and down the whole composition of scattered objects.

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