hlsl register

最新推荐文章于 2025-06-21 03:53:45 发布

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本文介绍如何使用register关键字将着色器变量指定到特定寄存器中，包括不同类型的寄存器如常量缓冲区、纹理和采样器等，并提供了多个示例。

https://msdn.microsoft.com/en-us/library/dd607359(v=VS.85).aspx

Optional keyword for assigning a shader variable to a particular register, which uses the following syntax:

: register ( [shader_profile], Type#[subcomponent] )

Required keyword.

[shader_profile]

Optional shader profile, which can be a shader target or simply ps or vs.

Type#[subcomponent]

You may add one or more register assignments to the same variable declaration, separated by spaces.

For Direct3D 10 variables in global scope, the register keyword acts the same as the packoffset (DirectX HLSL) keyword.

Here are some examples:

sampler myVar : register( ps_5_0, s );

sampler myVar : register( vs, s[8] );

 
sampler myVar : register( ps, s[2] ) 
              : register( ps_5_0, s[0] ) 
              : register( vs, s[8] );