Metal Shading Language Guide
Metal着色语言指南
Introduction
The Metal shading language is a unified programming language for writing both graphics and compute kernel functions that
are used by apps written with the Metal framework.
The Metal shading language is designed to work together with the Metal framework, which manages the execution, and
optionally the compilation, of the Metal shading language code. The Metal shading language uses clang and LLVM so
developers get a compiler that delivers close to the metal performance for code executing on the GPU.
Metal着色语言是一个用来编写3d图形渲染逻辑 和 并行计算核心逻辑的编程语言，编写Metal框架的app需要使用
Metal着色语言程序。
Metal着色语言和Metal框架配合使用，Metal框架管理Metal着色语言的运行和可选编译选项。Metal着色语言使用clang
和 LLVM，编译器对于在GPU上的代码执行效率有更好的控制。
At a Glance
This document describes the Metal unified graphics and compute shading language. The Metal shading language is a C++
based programming language that developers can use to write code that is executed on the GPU for graphics and
general-purpose data-parallel computations. Since the Metal shading language is based on C++, developers will find it
familiar and easy to use. With the Metal shading language, both graphics and compute programs can be written with a single,
unified language, which allows tighter integration between the two.
本文描述了Metal着色语言的使用（图形渲染和并行计算）。Metal着色语言基于C++设计，开发者可以用它来编写在
GPU上执行的图形渲染逻辑代码和通用并行计算逻辑代码。因为是基于C++设计，开发者会发现它熟悉便于使用。使
用Metal着色语言，图形渲染和并行计算可以使用同一种语言，这就允许把两种任务结合在一起完成。
How to Use This Document
Developers who are writing code with the Metal framework will want to read this document, because they will need to use
the Metal shading language to write graphics and compute programs to be executed on the GPU. This document is organized
into the following chapters:
! Metal and C++11 (page 8) covers the similarities and differences between the Metal shading language and C++11.
! Metal Data Types (page 10) lists the Metal shading language data types, including types that represent vectors, matrices,
buffers, textures, and samplers. It also discusses type alignment and type conversion.
! Operators (page 30) lists the Metal shading language operators.!
! Functions, Variables, and Qualifiers (page 36) details how functions and variables are declared, sometimes with qualifiers
that restrict how they are used.
! !Metal Standard Library (page 62) defines a collection of built-in Metal shading language functions.
! Compiler Options (page 93) details the options for the Metal shading language compiler, including pre-processor
directives, options for math intrinsics, and options that control optimization.
! Numerical Compliance (page 95) describes requirements for representing floating-point numbers, including accuracy in
mathematical operations.
使用Metal框架的开发者应该阅读本文，因为他们需要使用Metal着色语言编写运行在GPU上的图形渲染和并行计算逻
辑。本文包含如下的章节：
! Metal and C++11， 描述Metal着色语言和它的基础C++11的异同。
剩余78页未读，继续阅读
评论1