Create clumping maps

Create the points map

1. Add a Clumping modifier to your Description. See Add XGen modifiers to Descriptions.
2. In the bottom section of the Clumping Modifier attributes, click Setup Maps.

   The Generate Clumping Maps window appears.

3. In the Points section of the Generate Clumping Maps window, specify how to generate the points map for the clumping guides. See Use point maps for AnimWire and Clumping Modifiers.

   After creating the points map that specifies the location of the clumping guides, you specify how to you want to map the clumping regions around the guides. You do this in the Maps section of the Generate Clumping Map window.

4. If you want to save the clumping map to a location other than the default directory, click the icon and specify a new location.

Specify the control map settings

After creating the points map that specifies the location of the clumping guides, you specify how to you want to map the clumping regions around the guides.

XGen automatically sets up Control Maps if the Description is using a Region Map and its Region Mask is set a value greater than 0 (meaning that the Region Map is being used). This is to ensure that the Clump maps you create respect the region boundaries defined by the Region Map.

Any subsequent Clumping modifier added to the Description, uses the previous Clumping module's maps as control maps, to maintain boundaries between regions and clumps. If you create a Region Map for the Description after setting up a Clumping modifier, you need to rebuild all clumping maps, starting with the first one in the Modifier list, so that the new region boundaries are used by the clumping maps.

You setup the Control Maps in the Maps section of the Generate Clumping Map window.

1. If you want to save the clumping map to a location other than the default directory, click the icon beside Map Dir and specify a new location.
2. Set the Radius Variance.
3. If the Description is using a Region Mapor the map you are creating is the second clumping map in a modifier chain, Use Control Maps is on by default.

   This ensures that the clumping guides respect the boundaries defined by the Region Map of the current Description.

4. (Optional) Set a value for a Control Mask.
5. If you want to use a Region Map (or another clumping map) from a location other than the default directory, click the icon beside Control Map and browse the location.
6. If Control Map is off, set the Texels Per Unit.
7. Click Save to generate the clumping map.
8. In the Modifiers tab, set the Clumping attributes to produce the desired effect.
9. Render the Description.