我正在编写将显示3D模型的项目。 我已经编写了下一个代码：
#include <QGuiApplication>
#include <QUrl>
#include <QDebug>
#include <Qt3DExtras/Qt3DExtras>
#include <Qt3DExtras/Qt3DWindow>
#include <Qt3DCore/QEntity>
#include <Qt3DRender/Qt3DRender>
#include <Qt3DCore/Qt3DCore>
#include <QVector3D>
#include <memory>
int main(int argc, char *argv[])
{
QGuiApplication a(argc, argv);
QUrl data = QUrl::fromLocalFile("bun_zipper.ply");
qDebug() << data.isValid() << data.toLocalFile() << QFileInfo(data.toLocalFile()).exists() << data.fileName();
Qt3DExtras::Qt3DWindow view;
std::shared_ptr<Qt3DCore::QEntity> rootEntity(new Qt3DCore::QEntity);
std::shared_ptr<Qt3DCore::QEntity> flyingwedge(new Qt3DCore::QEntity(rootEntity.get()));
std::shared_ptr<Qt3DRender::QMaterial> material(new Qt3DExtras::QMetalRoughMaterial(rootEntity.get()));
std::shared_ptr<Qt3DRender::QMesh> flyingwedgeMesh(new Qt3DRender::QMesh);
flyingwedgeMesh->setMeshName("FlyingWedge");
flyingwedgeMesh->setSource(data);
std::shared_ptr<Qt3DCore::QTransform> flyingWedgeTransform(new Qt3DCore::QTransform);
flyingWedgeTransform->setScale3D(QVector3D(50.0, 50.0, 50.0));
std::shared_ptr<Qt3DRender::QFrontFace> frontFace(new Qt3DRender::QFrontFace(rootEntity.get()));
frontFace->setDirection(Qt3DRender::QFrontFace::CounterClockWise);
flyingwedge->addComponent(flyingwedgeMesh.get());
flyingwedge->addComponent(material.get());
flyingwedge->addComponent(flyingWedgeTransform.get());
Qt3DRender::QCamera* camera = view.camera();
camera->lens()->setPerspectiveProjection(45.0f, 16.0f / 9.0f, 0.1f, 1000.0f);
camera->setPosition(QVector3D(0, 0, 40.0f));
camera->setViewCenter(QVector3D(0, 0, 0));
view.setRootEntity(rootEntity.get());
view.show();
return a.exec();
}
在专业文件中，我添加了 3dextras 和 3dcore
QT += core gui 3dextras 3dcore
它工作正常，并显示3D模型。 但是我想包括GTest和其他库，并且已经使用柯南软件包管理器和CMake重写了我的项目。
conanfile.txt
[requires]
Qt/5.11.1@bincrafters/stable
[options]
Qt:qt3d=True
[generators]
cmake
CMakeLists.txt
cmake_minimum_required(VERSION 3.10)
project(test_project)
set(CMAKE_CXX_FLAGS -pthread)
set(CMAKE_CXX_STANDARD 14)
include(${CMAKE_BINARY_DIR}/conanbuildinfo.cmake)
conan_basic_setup()
set(CMAKE_INCLUDE_CURRENT_DIR ON)
# Instruct CMake to run moc automatically when needed
set(CMAKE_AUTOMOC ON)
# Create code from a list of Qt designer ui files
set(CMAKE_AUTOUIC ON)
set(CMAKE_AUTORCC ON)
find_package(Qt5Core REQUIRED)
find_package(Qt5Widgets REQUIRED)
find_package(Qt53DCore REQUIRED)
find_package(Qt53DExtras REQUIRED)
add_executable(${PROJECT_NAME} main.cpp)
target_link_libraries(${PROJECT_NAME} Qt5::Widgets)
target_link_libraries(${PROJECT_NAME} Qt5::Core)
target_link_libraries(${PROJECT_NAME} Qt5::3DCore)
target_link_libraries(${PROJECT_NAME} Qt5::3DExtras)
我建立的项目没有任何错误，但是没有显示3D模型。
config.summary
Build type: linux-g++ (x86_64, CPU features: mmx sse sse2)
Configuration: use_gold_linker sse2 aesni sse3 ssse3 sse4_1 sse4_2 avx avx2 avx512f avx512bw avx512cd avx512dq avx512er avx512ifma avx512pf avx512vbmi avx512vl compile_examples enable_new_dtags f16c largefile precompile_header rdrnd shani silent x86SimdAlways shared rpath release c++11 c++14 c++1z concurrent dbus reduce_exports reduce_relocations stl
Build options:
Mode ................................... release
Optimize release build for size ........ no
Building shared libraries .............. yes
Using C++ standard ..................... C++1z
Using ccache ........................... no
Using gold linker ...................... yes
Using new DTAGS ........................ yes
Using precompiled headers .............. yes
Using LTCG ............................. no
Target compiler supports:
SSE .................................. SSE2 SSE3 SSSE3 SSE4.1 SSE4.2
AVX .................................. AVX AVX2
AVX512 ............................... F ER CD PF DQ BW VL IFMA VBMI
Other x86 ............................ AES F16C RDRAND SHA
Intrinsics without -mXXX option ...... yes
Build parts ............................ libs tools
Qt modules and options:
Qt Concurrent .......................... yes
Qt D-Bus ............................... yes
Qt D-Bus directly linked to libdbus .... yes
Qt Gui ................................. yes
Qt Network ............................. yes
Qt Sql ................................. yes
Qt Testlib ............................. yes
Qt Widgets ............................. yes
Qt Xml ................................. yes
Support enabled for:
Using pkg-config ....................... yes
udev ................................... yes
Using system zlib ...................... no
Qt Core:
DoubleConversion ....................... yes
Using system DoubleConversion ........ no
GLib ................................... yes
iconv .................................. no
ICU .................................... yes
Tracing backend ........................ <none>
Logging backends:
journald ............................. no
syslog ............................... no
slog2 ................................ no
Using system PCRE2 ..................... no
Qt Network:
getifaddrs() ........................... yes
IPv6 ifname ............................ yes
libproxy ............................... no
Linux AF_NETLINK ....................... yes
OpenSSL ................................ no
Qt directly linked to OpenSSL ........ no
OpenSSL 1.1 ............................ no
SCTP ................................... no
Use system proxies ..................... yes
Qt Gui:
Accessibility .......................... yes
FreeType ............................... yes
Using system FreeType ................ yes
HarfBuzz ............................... yes
Using system HarfBuzz ................ yes
Fontconfig ............................. yes
Image formats:
GIF .................................. yes
ICO .................................. yes
JPEG ................................. yes
Using system libjpeg ............... yes
PNG .................................. yes
Using system libpng ................ no
EGL .................................... yes
OpenVG ................................. no
OpenGL:
Desktop OpenGL ....................... yes
OpenGL ES 2.0 ........................ no
OpenGL ES 3.0 ........................ no
OpenGL ES 3.1 ........................ no
OpenGL ES 3.2 ........................ no
Vulkan ................................. no
Session Management ..................... yes
Features used by QPA backends:
evdev .................................. yes
libinput ............................... no
INTEGRITY HID .......................... no
mtdev .................................. no
tslib .................................. no
xkbcommon-evdev ........................ no
QPA backends:
DirectFB ............................... no
EGLFS .................................. yes
EGLFS details:
EGLFS OpenWFD ........................ no
EGLFS i.Mx6 .......................... no
EGLFS i.Mx6 Wayland .................. no
EGLFS RCAR ........................... no
EGLFS EGLDevice ...................... yes
EGLFS GBM ............................ no
EGLFS VSP2 ........................... no
EGLFS Mali ........................... no
EGLFS Raspberry Pi ................... no
EGL on X11 ........................... yes
LinuxFB ................................ yes
VNC .................................... yes
Mir client ............................. no
X11:
Using system-provided XCB libraries .. no
EGL on X11 ........................... yes
Xinput2 .............................. yes
XCB XKB .............................. yes
XLib ................................. yes
XCB render ........................... yes
XCB GLX .............................. yes
XCB Xlib ............................. yes
Using system-provided xkbcommon ...... no
Native painting (experimental) ....... yes
Qt Widgets:
GTK+ ................................... no
Styles ................................. Fusion Windows
Qt PrintSupport:
CUPS ................................... yes
Qt Sql:
DB2 (IBM) .............................. no
InterBase .............................. no
MySql .................................. yes
OCI (Oracle) ........................... no
ODBC ................................... no
PostgreSQL ............................. yes
SQLite2 ................................ yes
SQLite ................................. yes
Using system provided SQLite ......... no
TDS (Sybase) ........................... yes
Qt Testlib:
Tester for item models ................. yes
Qt 3D:
Assimp ................................. yes
System Assimp .......................... no
Output Qt3D Job traces ................. no
Output Qt3D GL traces .................. no
Use SSE2 instructions .................. yes
Use AVX2 instructions .................. no
Aspects:
Render aspect ........................ yes
Input aspect ......................... yes
Logic aspect ......................... yes
Animation aspect ..................... yes
Extras aspect ........................ yes
Qt 3D Renderers:
OpenGL Renderer ........................ yes
Qt 3D GeometryLoaders:
Autodesk FBX ........................... no
Note: Also available for Linux: linux-clang linux-icc
Note: Dropped compiler flags '-pthread' when detecting library 'glib'.
Note: Disabling X11 Accessibility Bridge: D-Bus or AT-SPI is missing.
如何解决此问题？
使用QtMultimedia时我有almost the same problem，但声音不播放。我已经解决了QtMultimedia依赖项安装问题。