# pushBackdropFilter method

EngineLayer pushBackdropFilter (ImageFilter filter)

Pushes a backdrop filter operation onto the operation stack.

The given filter is applied to the current contents of the scene prior to rasterizing the given objects.

See pop for details about the operation stack.

## Implementation

    EngineLayer pushBackdropFilter(ImageFilter filter) native 'SceneBuilder_pushBackdropFilter';