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Feature levels in Direct3D : ウィキペディア英語版 | Feature levels in Direct3D Feature levels in Direct3D define strict sets of features required by certain versions of the Direct3D API and runtime, as well as additional optional feature levels available within the same API version. ==Overview==
Feature levels encapsulate hardware-specific capabilities that exist on top of common mandatory requirements and features in a particular version of the API. The levels are grouped in strict supersets of each other, so each higher level includes all features required on every lower level. Some feature levels include previously optional hardware features which are promoted to a mandatory status with new revisions of the API to better expose newer hardware. More advanced features such as new shader models and rendering stages are only exposed on up-level hardware,〔〔(【引用サイトリンク】title=Windows Driver Kit - Supporting Direct3D 11 )〕 however the hardware is not required to support all of these feature levels〔 and the Direct3D runtime will make the necessary translations. Separate capabilities exist to indicate support for specific texture operations and resource formats; these are usually specified per each texture format using a combination of capability flags, but some of these optional features are promoted to mandatory on upper feature levels.〔(【引用サイトリンク】title=Direct3D feature levels )〕
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Feature levels in Direct3D」の詳細全文を読む
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