Abstract: An interactive development environment enables a user to create a customized image filter through a user interface that provides the developer with a capability to create a directed acyclic graph representing the mathematical operations and values that generate a customized visual effect. During development of the customized image filter, a visual shader designer engine may execute the operations and values associated with each node in a prescribed order and display the rendered outcome in the render view area of each node. In this manner, the developer is able to quickly visualize the visual effect produced by the image filter in real time.

Abstract: A page-based content storage system may be provided by a method of managing content which includes generating, from a plurality of electronic files containing displayable content, a plurality of viewpages, where each viewpage contains one or more portions of the displayable content and each viewpage is displayable in a single-page view. The method further includes assembling the viewpages into a journal to provide a page-based storage structure configured to enable individual, selective management of the viewpages based on properties associated with the one or more portions of the displayable content. The method further includes visually presenting the viewpages as single-page views accessible via a page-based user interface of a computing system.