问题

我试图按照教程操作，但在尝试编译他制作的顶点着色器时，我得到以下输出：

顶点着色器编译失败，出现以下错误：
错误：0:3：错误(#279) 无效的布局限定符 'location'
错误：错误(#273) 1 个编译错误。没有生成代码

我使用的是 GLSL 3.2.9232，我的代码：

#version 150

layout (location = 0) in vec3 position;

void main()
{
    gl_Position = vec4(0.25 * position, 1.0);
}

Vertex shader failed to compile with the following errors:
ERROR: 0:3: error(#279) Invalid layout qualifier 'location'
ERROR: error(#273) 1 compilation errors.  No code generated

#version 150

layout (location = 0) in vec3 position;

void main()
{
    gl_Position = vec4(0.25 * position, 1.0);
}

答案1

得分: 1

输入布局位置限定符（参见[顶点着色器属性索引](https://www.khronos.org/opengl/wiki/Layout_Qualifier_(GLSL)#Vertex_shader_attribute_index)）在GLSL 3.30中引入，在GLSL 1.50中不可用。请对比[OpenGL Shading Language 3.30规范](https://www.khronos.org/registry/OpenGL/specs/gl/GLSLangSpec.3.30.pdf)和[OpenGL Shading Language 1.50规范](https://www.khronos.org/registry/OpenGL/specs/gl/GLSLangSpec.1.50.pdf)。

切换到GLSL 3.30：

#version 150
```glsl
#version 330

如果你的系统不支持GLSL 3.30，你必须移除布局限定符：

layout (location = 0) in vec3 position;

in vec3 position;

你可以在程序链接之前使用glBindAttribLocation指定属性位置：

glBindAttribLocation(program, 0, "position"); // 必须在glLinkProgram之前完成
glLinkProgram(program)

<details>
<summary>英文:</summary>

Input layout locations qualifiers (see [Vertex shader attribute index](https://www.khronos.org/opengl/wiki/Layout_Qualifier_(GLSL)#Vertex_shader_attribute_index)) are introduced in in GLSL 3.30 and cannot be used in GLSL 1.50. Compare [OpenGL Shading Language 3.30 Specification](https://www.khronos.org/registry/OpenGL/specs/gl/GLSLangSpec.3.30.pdf) and  [OpenGL Shading Language 1.50 Specification](https://www.khronos.org/registry/OpenGL/specs/gl/GLSLangSpec.1.50.pdf).

Switch to glsl 3.30:

&lt;s&gt;`#version 150`&lt;/s&gt;
```glsl
#version 330

If your system doesn't support GLSL 3.30, you have to remove the layout qualifier

<s>layout (location = 0) in vec3 position;</s>

in vec3 position; 

You can specify the attribute location with glBindAttribLocation before the program is linked:

glBindAttribLocation(program, 0, "position"); // has to be done before glLinkProgram
glLinkProgram(program)