Hi All
We start from an example of Qt (hellogl_es2) and we added texture to the ground, some billboard icons that rotate and updated the app to Qt5.7. While I only use gles2 functions in a qDebug I see that Qt5.7 is compiling for gles3.
std::string glVersion = reinterpret_cast<const char*>(glGetString(GL_VERSION));
std::string glslVer = reinterpret_cast<const char*>(glGetString(GL_SHADING_LANGUAGE_VERSION));
qDebug(“glVer: %s
glslVer: %s”, glVersion.c_str(), glslVer.c_str());
glVer: OpenGL ES 3.0 Mesa 12.0.6
glslVer: OpenGL ES GLSL ES 3.00
hellogl_es2 qt example works fine on both but in my app only black box is seen with nothing.}
GPU supports Open GL ES 3.1
Yocto distribution has partial support for GL ES 3.0
but Qt toolchain for crosscopile supports only GL ES 2.0
How do I force Qt to compile on gles2?
I’ve tried code like the following and it returns “2.0” but compiles to gles3.
QSurfaceFormat format;
format.setVersion(2,0);
int majorVersion = format.majorVersion();
int minorVersion = format.minorVersion();
qDebug(“Major Version %d”, majorVersion);
qDebug(“Minor Version %d”, minorVersion);
I appreciate who can help me.
Greetings.
Gustavo.