Patent ID: 7151546
Filing Date: 2006-12-19
Classification: G06T

Abstract:
1. A method for processing digital graphical elements, comprising: receiving a stack of digital graphical elements including a group, the group being a set of two or more contiguous digital graphical elements in the stack of digital graphical elements, digital graphical elements beneath the group in the stack specifying a backdrop for the group determining whether the group is designated as an isolated group, wherein a group is designated as an isolated group if the group has an attribute that expressly designates it as being an isolated group; and compositing the digital graphical elements of the group to calculate a resulting color for the group, the compositing of the digital graphical elements of the group disregarding any color of the backdrop for the group in the stack if the group is designated as an isolated group, and treating the result of the compositing as if the group were a single element in the stack.