Framework for Graphics Animation and Compositing O

专利名称：Framework for Graphics Animation and

Compositing Operations

发明人：Ralph Brunner,John Harper,Peter N.

Graffagnino

申请号：US13540985申请日：20120703

公开号：US20120274644A1公开日：20121101

专利附图：

摘要：A graphics animation and compositing operations framework has a layer treefor interfacing with the application and a render tree for interfacing with a render engine.

Layers in the layer tree can be content, windows, views, video, images, text, media, orother types of objects for an application's user interface. The application commits statechanges to the layers of the layer tree. The application does not need to include explicitcode for animating the changes to the layers. Instead, an animation is determined foranimating the change in state by the framework which can define a set of predeterminedanimations based on motion, visibility, and transition. The determined animation isexplicitly applied to the affected layers in the render tree. A render engine renders fromthe render tree into a frame buffer. Portions of the render tree changing relative to priorversions can be tracked to improve resource management.

申请人：Ralph Brunner,John Harper,Peter N. Graffagnino

地址：Cupertino CA US,San Francisco CA US,San Francisco CA US

国籍：US,US,US

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