Qt5 OpenGL GLSL版本错误 [英] Qt5 OpenGL GLSL version error

问题描述

我开始在Qt和着色器上使用OpenGL(我有OpenGL的经验，但还没有使用着色器)

I'm starting out on using OpenGL with Qt, and with Shaders (I have OpenGL experience, but not with shaders yet)

我正在关注本教程: http://releases.qt -project.org/learning/developerguides/qtopengltutorial/OpenGLTutorial.pdf (Qt5 OpenGL官方教程).

I'm following this tutorial: http://releases.qt-project.org/learning/developerguides/qtopengltutorial/OpenGLTutorial.pdf (the official Qt5 OpenGL tutorial).

问题是，当我尝试运行程序时，出现黑屏和以下错误消息:

The problem is, that when I try to run my program, I get a black screen and the following error messages:

QGLShader::compile(Vertex): ERROR: 0:1: '' :  version '130' is not supported

QGLShader::compile(Fragment): ERROR: 0:1: '' :  version '130' is not supported

我的程序基于QGLWidget

My program is based on a QGLWidget

在Internet上进行一些浏览后，我发现我需要使用OpenGL 3.2上下文，但是Qt喜欢使用OpenGL 2.x

With some browsing on the interwebs I found out that I need to use an OpenGL 3.2 context, but that Qt likes to use OpenGL 2.x

我的电脑:

• MacBook Pro Retina '15，2012年末
• 英特尔HD 4000
• NVidia GeForce 650M

那么，我该如何做呢?

我的版本是3.2(通过QGLFormat设置)，没有指定格式，它使用2.0

My version is 3.2 (set through QGLFormat), without a specified format it uses 2.0

fragmentShader.frag:

fragmentShader.frag:

#version 130

uniform vec4 color;

out vec4 fragColor;

void main(void)
{
    fragColor = color;
}

vertexShader.vert:

vertexShader.vert:

#version 130

uniform mat4 mvpMatrix;

in vec4 vertex;

void main(void)
{
    gl_Position = mvpMatrix * vertex;
}

错误(格式为OpenGL 3.2):

Errors (with format, OpenGL 3.2):

QGLShaderProgram: shader programs are not supported 
QGLShaderProgram::uniformLocation( mvpMatrix ): shader program is not linked 
The program has unexpectedly finished.

错误(无格式，OpenGL 2.0):

Errors (without format, OpenGL 2.0):

QGLShader::compile(Vertex): ERROR: 0:1: '' :  version '130' is not supported

QGLShader::compile(Fragment): ERROR: 0:1: '' :  version '130' is not supported

推荐答案

较新的QOpenGLWidget不支持QGLFormat的任何构造函数.相反，在您的main.cpp中，为所有QOpenGLWidget和QOpenGLContext指定默认的QSurfaceFormat，如下所示:

Newer QOpenGLWidget doesn't support any constructor with QGLFormat. Instead, in your main.cpp, specify the default QSurfaceFormat for all QOpenGLWidget and QOpenGLContext as following:

// main.cpp
QSurfaceFormat glFormat;
glFormat.setVersion(3, 3);
glFormat.setProfile(QSurfaceFormat::CoreProfile);
QSurfaceFormat::setDefaultFormat(glFormat);

现在，您应该可以在着色器中使用类似#version 330 core之类的东西.

Now you should be able to use something like #version 330 core in your shader.

这篇关于Qt5 OpenGL GLSL版本错误的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！