After adding the dynamic fire effect, you may notice the interactive performance of Maya slow down significantly. You can speed up your scene by using proxy assets.

A proxy is an object that stands in a scene for another, more complex object. Proxy objects allow you to quickly switch between complex and simple representations of an object in your scene. They are useful for temporarily reducing the complexity of the scene as you work with it.

To export a proxy container

1. In the scene view, select the fire’s fluid asset.

   Since asset-centric selection is on, this selects the fire’s asset node.

2. Select Assets > Export Proxy Asset > .

   The Export Proxy Asset window appears.

3. Select Edit > Reset Settings.
4. Change the name to Flame_proxy.
5. Click Apply and Close.

   The File Browser appears.

6. Navigate to GettingStartedMaya2012LessonData\Assets and type the name flame_proxy.ma.
7. Click Export.

   Maya creates a proxy file.

Now you can load the proxy to represent the asset.

To load a proxy

1. In the Reference Editor, select the referenced flame file that appears next to the proxy asset icon ().
2. Select Proxy > Reload Proxy as > proxyAsset (flame_proxy.ma).

   The fire effect disappears and a locator appears in its place.

The asset for your fire still appears in the Outliner, however if you expand it, only a single locator node appears (instead of the fire’s group node).

Likewise, the fire in your scene has been replaced with a locator node. Your interaction with this asset has not changed, you can still assign values to the published attributes and move the locator around the scene. When you reload the proxy asset again, the fire reflects those changes. However, if you play the scene when the proxy asset is active, the scene playback is much faster.