本帖最后由 DUO 于 2023-3-29 21:47 编辑

Introduction to the shader programming language

Initial observations

Years ago, when I was just starting my studies about shaders in Unity, it was challenging to understand much of the content I found in the books for several factors. I still remember that day of studies, wishing to understand the operation of the semantics POSITION[n]; however, when I managed to find its definition, I found the following statement:

Vertex position in object-space.

初步观察

几年前，当我刚开始学习Unity中的着色器时，由于多种因素，我很难理解书籍中的大部分内容。我仍然记得那一天，我希望了解POSITION[n]的语义操作方式；然而，当我成功找到它的定义时，我发现以下说明：

顶点位置处于物体空间。

At that moment, I asked myself, what is the vertex position in object-space? Then I understood that there was previous information that I had to know before starting to read about this subject.

那时候，我问自己，对象空间中的顶点位置是什么？然后我悟了，在开始阅读这个主题之前，我必须了解先前的信息。

In my experience, I have been able to identify at least four fundamental areas that facilitate the understanding of shaders and their structure, such as properties of a polygonal object, the structure of a render pipeline, matrices, and coordinate systems.

根据我的经验，我至少能够确定四个基本领域，有助于理解着色器及其结构，如多边形对象的属性，渲染管道的结构，矩阵和坐标系。