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In computing, hardware overlay, a type of video overlay, provides a method of rendering an image to a display screen with a dedicated memory buffer inside computer video hardware. The technique aims to improve the display of a fast-moving video image — such as a computer game , a DVD , or the signal from a TV card .
Video overlay is any technique used to display a video window on a computer display while bypassing the chain of CPU to graphics card to computer monitor. This is done in order to speed up the video display, and it is commonly used, for example, by TV tuner cards and early 3D graphics accelerator cards.
Nvidia Gameworks consists of several main components: VisualFX: For rendering effects such as smoke, fire, water, depth of field, soft shadows, HBAO+, TXAA, FaceWorks, and HairWorks. PhysX: For physics, destruction, particle and fluid simulations. OptiX: For baked lighting and general-purpose ray-tracing.
Some settings for use by developers for debugging and power users are located in a "Developer options" sub menu, such as the ability to highlight updating parts of the display, show an overlay with the current status of the touch screen, show touching spots for possible use in screencasting, notify the user of unresponsive background processes ...
Off-TV Play is a feature of Nintendo's eighth-generation video game console, the Wii U. Like all video game consoles, the Wii U uses a console and a controller to manipulate an image on a television screen. The Wii U's unique feature is that its controller, the Wii U GamePad, has its own built-in screen for displaying images. It can display an ...
The screen-space, “deferred” pass then accumulates diffuse and specular lighting data separately, so a last pass must be made over the scene geometry to output final image with per-pixel shading. The apparent advantage of deferred lighting is a dramatic reduction in the size of the G-Buffer.
Some games, in an attempt to increase player immersion and reduce potential screen clutter, have most or all elements disappear when not needed (usually when the status they display is static), a method commonly referred to as a "dynamic HUD". In most cases, the player can display them all by pausing the game or pressing a button.
In games, however, performance actually suffered. Despite this poor introduction, the Rage Pro Turbo name stuck, and eventually ATI was able to release updated versions of the driver which granted a visible performance increase in games, however this was still not enough to garner much interest from PC enthusiasts.