October 2024
Intermediate
240 pages
6h 57m
Japanese
Content preview from 図解まるわかり VR・AR・MRのしくみ
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152
DirectX、OpenGL、Metal、Vulkan
3Dグラフィックスの実装
6-14
仮想世界と現実世界をシームレスに結ぶ
「3Dグラフィックスを実装する」とは、コンピュータ上で立体的な映像
表現を行うことです。表現には、物体の形状や色、テクスチャ、光源、陰
影などが含まれ、3D空間にリアルに再現するための技術そのものやプロ
セスを指します。したがって、XR技術のパフォーマンスを向上させ、仮
想空間と現実世界をシームレスに融合することが可能になります。
3Dグラフィックスを実装するAPI
API（ApplicationProgramming Interface）は、ソフトウェアとハードウ
ェアの効率的な通信をサポートする役割を持ちます。主なAPIには、以下
の4 つがあります（図 6-27、6-28）。
●
DirectX
：Microsoft社が開発した Windows 向けの APIで、主にゲー
ム開発に利用される。GPUを利用した高速なレンダリングが可能で
あり、特にWindows 環境下で最適化する。
●
OpenGL
：KhronosGroup が開発した APIで、プラットフォームに依
存せず、派生型の種類や外部ライブラリとの連携が豊富。構造が単純
で、高い汎用性を誇る。
●
Metal：Apple社が開発した macOS や iOS 向けの API。仕様は DirectX
やVulkan と似ていて、低レベル仕様でコンピュータの内部構造に近い
操作ができるため、細かい調整や最適化が可能。 ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.