enabled Web3Gl

[elicat]

hello,
I have to use a graphics library in my project with QML / QWebEngine.
I set and tested the WebGL enablement.
Usage VS2017 / Windows is QT 5.11
I have performed the following steps
In the QML file

import QtWebEngine 1.6
        WebEngineView {
            id: viewEnginePgm
            settings.webGLEnabled: true

At the opening of the application

QCoreApplication :: setAttribute (Qt :: AA_UseDesktopOpenGL);
QCoreApplication :: setAttribute (Qt :: AA_UseSoftwareOpenGL);

In the .pro file

LIBS + = opengl32.lib

The result is always the same.
Does anyone have an idea to solve it?
Thanks

[elicat]

Install QT version 5.14.0 and make only this into main.cpp

QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling);

	bool ret;
	ret = qputenv("QTWEBENGINE_CHROMIUM_FLAGS", " --ignore-gpu-blacklist --enable-gpu-rasterization --enable-oop-rasterization --use-angle");
/* this only for print into console.log */
	ret = qputenv("QSG_INFO", "1");
	ret = qputenv("QT_OPENGL", "angle");
	ret = qputenv("QT_ANGLE_PLATFORM", "d3d11");
	ret = qputenv("QSG_RENDER_LOOP", "basic");

	QApplication::setAttribute(Qt::AA_UseOpenGLES);
	QCoreApplication::setAttribute(Qt::AA_UseOpenGLES);
	QGuiApplication::setAttribute(Qt::AA_UseOpenGLES);

	QCoreApplication::setAttribute(Qt::AA_ShareOpenGLContexts);
	QGuiApplication app(argc, argv);