error GLSL 3.30 is not supported 解决

Post author: DiDong
Post link: <a href="https://didongdongdi.github.io/2020/05/02/error_GLSL_3-30_is_not_supported_%E8%A7%A3%E5%86%B3/" title="error GLSL 3.30 is not supported 解决">https://didongdongdi.github.io/2020/05/02/error_GLSL_3-30_is_not_supported_解决 /
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Posted on 2020-05-02 Edited on 2020-05-06 In Problem Views: 28
Symbols count in article: 381 Reading time ≈ 1 mins.

投票最高的回答我不太懂，但是第二个回答在我这是可行的，修改环境变量就可以了，然后在那个环境下启动 qtcreator

export MESA_GL_VERSION_OVERRIDE=3.3

然后我就出现了没有报错但是依然显示不出来对应图像的问题，最后发现是有一个地方的代码和示例代码不对

GLuint vPosition = program->attributeLocation("vPosition");

后面的 vPosition 写错了，导致整个 paintGL() 函数没有执行一样，估计是将对应的变量解析到 GLSL 语言中失败了，但是这样的错误并不会报错