openGL API glGenSamplers 详解

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本文介绍OpenGL中glGenSamplers函数的使用方法，此函数用于生成指定数量的纹理采样器对象名称。采样器对象名在调用后不会与其他后续调用重复，除非它们被glDeleteSamplers删除。

暂时先放openGL官方文档的解释，后面我会加入中文翻译

Name

glGenSamplers — generate sampler object names

C Specification

`void glGenSamplers(`	GLsizei n,
	GLuint *samplers`)`;

Parameters

n

Specifies the number of sampler object names to generate.

samplers

Specifies an array in which the generated sampler object names are stored.

Description

glGenSamplers returns n sampler object names in samplers. There is no guarantee that the names form a contiguous set of integers; however, it is guaranteed that none of the returned names was in use immediately before the call to glGenSamplers.

Sampler object names returned by a call to glGenSamplers are not returned by subsequent calls, unless they are first deleted with glDeleteSamplers.

The names returned in samplers are marked as used, for the purposes of glGenSamplers only, but they acquire state and type only when they are first bound.

Notes

glGenSamplers is available only if the GL version is 3.3 or higher.

Errors

GL_INVALID_VALUE is generated if n is negative.

Version Support

	OpenGL Version
Function / Feature Name	2.0	2.1	3.0	3.1	3.2	3.3	4.0	4.1	4.2	4.3	4.4	4.5
`glGenSamplers`	-	-	-	-	✔	✔	✔	✔	✔	✔	✔	✔

Copyright

Copyright © 2010-2014 Khronos Group. This material may be distributed subject to the terms and conditions set forth in the Open Publication License, v 1.0, 8 June 1999. http://opencontent.org/openpub/.

参考：

https://www.khronos.org/registry/OpenGL-Refpages/gl4/