Techniques for virtual area generation and manipulation are described herein. The described techniques may be used, for example, for virtual areas in electronically presented content items, such as video games and other media items. In some examples, one or more interfaces may be provided that allow content developers to provide and specify a set of rules associated with the virtual area. The set of rules may include, for example, terrain rules, object rules, and other rules associated with other aspects of the virtual area. The terrain rules may include rules for generating, distributing, and/or manipulating different types of terrain, such as such as flat and/or buildable space, mountains, valleys, berms, rivers, lakes, oceans, deserts, forests, and many others. The object rules may include rules for generating, distributing, and/or manipulating different types of objects, such as trees, bushes, rocks, snow, grass, fish, birds, animals, people, vehicles, buildings, and others.

Methods and systems for generating virtual sensor data for developing or testing computer vision detection algorithms are described. A system and a method may involve generating a virtual environment. The system and the method may also involve positioning a virtual sensor at a first location in the virtual environment. The system and the method may also involve recording data characterizing the virtual environment, the data corresponding to information generated by the virtual sensor sensing the virtual environment. The system and the method may further involves annotating the data with a depth map characterizing a spatial relationship between the virtual sensor and the virtual environment.

Techniques for virtual area generation and manipulation are described herein. The described techniques may be used, for example, for virtual areas in electronically presented content items, such as video games and other media items. In some examples, one or more interfaces may be provided that allow content developers to provide and specify a set of rules associated with the virtual area. The set of rules may include, for example, terrain rules, object rules, and other rules associated with other aspects of the virtual area. The terrain rules may include rules for generating, distributing, and/or manipulating different types of terrain, such as such as flat and/or buildable space, mountains, valleys, berms, rivers, lakes, oceans, deserts, forests, and many others. The object rules may include rules for generating, distributing, and/or manipulating different types of objects, such as trees, bushes, rocks, snow, grass, fish, birds, animals, people, vehicles, buildings, and others.

A method, an eBook, and an apparatus are provided. The method includes calculating, by a processor, a usage metric describing a timing at which an eBook has been displayed for viewing by a user. The method further includes selectively deteriorating, by the processor, a look of the eBook for a secondary market based on the usage metric of the eBook.

Methods and systems for generating virtual sensor data for developing or testing computer vision detection algorithms are described. A system and a method may involve generating a virtual environment. The system and the method may also involve positioning a virtual sensor at a first location in the virtual environment. The system and the method may also involve recording data characterizing the virtual environment, the data corresponding to information generated by the virtual sensor sensing the virtual environment. The system and the method may further involves annotating the data with a depth map characterizing a spatial relationship between the virtual sensor and the virtual environment.

Provided is an apparatus for changing a color of weather presenter's costume in real time based on weather information. The apparatus includes: a control unit configured to determine a color representing given weather information; and a color change unit configured to change a color of weather presenter's costume into the determined color. Accordingly, since the apparatus represents weather information through a color of weather presenter's costume, a viewer may intuitively grasp an overall weather condition through the weather presenter's costume.

Methods, devices, and systems for providing a virtual construction and design of an interior wall of a home or office are described. The virtual construction and design provides for various substrate layers as they would exist within the interior wall, interactions between substrate layers, as well as environmental effects. The virtual construction can be implemented on a website so that a user of the website is able to create, select, and purchase customized wallpaper patterns with various color effects, three-dimensional effects, aging effects, texture effects, and environmental effects.

A method, an eBook, and an apparatus. The method includes calculating, by a processor, a usage metric describing a timing at which an eBook has been displayed for viewing by a user. The method further includes selectively deteriorating, by the processor, a look of the eBook for a secondary market based on the usage metric of the eBook.

A method, an eBook, and an apparatus are provided. The method includes calculating, by a processor, a usage metric describing a timing at which an eBook has been displayed for viewing by a user. The method further includes selectively deteriorating, by the processor, a look of the eBook for a secondary market based on the usage metric of the eBook.

A device implementing a system to render user interface timeline views for display of dynamic application content includes a processor configured to retrieve a data structure corresponding to user interfaces of an application associated with respective times, and at least one declaratively defined user interface element. The processor is further configured to determine whether a rendering cost of a plurality of the user interfaces complies with an update budget of the application, where the rendering cost includes interpreting the at least one declaratively defined user interface element for the respective times. When the rendering cost is determined to comply, the processor is further configured to render the plurality of the user interfaces in advance of the respective times associated with the plurality of the user interfaces. The processor is further configured to display at least one of the rendered plurality of the user interfaces based on a current time.