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qtk
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54
.github/workflows/build-test.yml vendored
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@ -7,49 +7,15 @@ on:
jobs:
Build-Qtk:
strategy:
fail-fast: false
matrix:
os: [ubuntu-latest, windows-latest, macos-latest]
include:
- os: ubuntu-latest
cmake: -DCMAKE_PREFIX_PATH="/home/runner/work/qtk/Qt/6.3.1/gcc_64/"
- os: windows-latest
cmake: -DCMAKE_PREFIX_PATH="D:/a/qtk/qtk/Qt/6.3.1/mingw81_64/"
- os: macos-latest
cmake: -DCMAKE_PREFIX_PATH="/home/runner/work/qtk/Qt/6.3.1/gcc_64/"
runs-on: ${{ matrix.os }}
steps:
- uses: actions/checkout@v3
- name: Install Qt
uses: jurplel/install-qt-action@v2
with:
version: '6.3.1'
- name: Chocolatey Action
if: matrix.os == 'windows-latest'
uses: crazy-max/ghaction-chocolatey@v2.0.0
with:
args: install pkgconfiglite
- name: Build Qtk
shell: bash
run: |
cmake -S . -B build/ ${{ matrix.cmake }} && cmake --build build/ \
--target qtk-main
Build-Qtk-Assimp-Targets:
strategy:
fail-fast: false
matrix:
os: [ubuntu-latest, macos-latest]
include:
- os: ubuntu-latest
cmake: -DCMAKE_PREFIX_PATH="/home/runner/work/qtk/Qt/6.3.1/gcc_64/" -DQTK_UPDATE_SUBMODULES=OFF
CMAKE_PARAMS: -DCMAKE_PREFIX_PATH=/home/runner/work/qtk/Qt/6.3.1/gcc_64/
- os: macos-latest
cmake: -DCMAKE_PREFIX_PATH="/home/runner/work/qtk/Qt/6.3.1/gcc_64/" -DASSIMP_NEW_INTERFACE=ON -DQTK_UPDATE_SUBMODULES=OFF
CMAKE_PARAMS: -DCMAKE_PREFIX_PATH=/home/runner/work/qtk/Qt/6.3.1/gcc_64/ -DASSIMP_NEW_INTERFACE=on
runs-on: ${{ matrix.os }}
steps:
@ -60,20 +26,20 @@ jobs:
with:
version: '6.3.1'
- name: Install Assimp Linux
if: matrix.os == 'ubuntu-latest'
shell: bash
run: |
sudo apt install libassimp-dev -y
- name: Install Assimp MacOS
if: matrix.os == 'macos-latest'
shell: bash
run: |
brew install assimp
- name: Install Assimp Ubuntu
if: matrix.os == 'ubuntu-latest'
shell: bash
run: |
sudo apt install libassimp-dev
- name: Build Qtk
shell: bash
run: |
cmake -S . -B build/ ${{ matrix.cmake }} && cmake --build build/ \
--target qtk-main
mkdir build && cd build
cmake .. ${{ matrix.CMAKE_PARAMS }} && cmake --build .

3
.gitmodules vendored
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@ -1,3 +0,0 @@
[submodule "extern/assimp/assimp"]
path = extern/assimp/assimp
url = https://github.com/assimp/assimp.git

230
CMakeLists.txt
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@ -3,7 +3,7 @@
## ##
## Project for working with OpenGL and Qt6 widgets ##
################################################################################
cmake_minimum_required(VERSION 3.2)
cmake_minimum_required(VERSION 3.5)
project(
#[[NAME]] Qtk
@ -16,212 +16,72 @@ set(CMAKE_INCLUDE_CURRENT_DIR ON)
set(CMAKE_AUTOUIC ON)
set(CMAKE_AUTOMOC ON)
set(CMAKE_AUTORCC ON)
set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD 11)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
if(CMAKE_CXX_COMPILER_ID MATCHES "MSVC")
add_compile_options(/wd4131 /wd4127)
# For CLion builds, point CMAKE_PREFIX_PATH to Qt6 install directory
list(APPEND CMAKE_PREFIX_PATH $ENV{HOME}/Code/Clones/Qt/6.3.1/gcc_64/)
find_package(Qt6 COMPONENTS OpenGLWidgets)
if (NOT Qt6_FOUND)
message(SEND_ERROR "Unable to find Qt6 at CMAKE_PREFIX_PATH: ${CMAKE_PREFIX_PATH}")
message(FATAL_ERROR "Specify path to Qt6 with `cmake -DCMAKE_PREFIX_PATH=/path/to/Qt/6.x.x/gcc_64 -S /path/to/qtk -B /path/to/qtk/build && cmake --build /path/to/qtk/build -j $(nprocs)`")
endif()
message(STATUS "[Qtk] Compiling with ${CMAKE_CXX_COMPILER_ID}")
# Qtk build options
option(QTK_DEBUG "Enable debugger" ON)
message(STATUS "[Qtk] Compiling with QTK_DEBUG=${QTK_DEBUG}")
option(QTK_UPDATE_SUBMODULES "Update external project (assimp) submodule" ON)
message(
STATUS
"[Qtk] Compiling with QTK_UPDATE_SUBMODULES=${QTK_UPDATE_SUBMODULES}"
)
# Qt options
set(QT_DIR "$ENV{HOME}/Code/Clones/Qt/6.3.1/gcc_64/" CACHE PATH "Path to Qt6")
# Options for bringing your own assimp installation; Otherwise not needed
# + If assimp is available system-wide we can just set QTK_UPDATE_SUBMODULES OFF
option(ASSIMP_NEW_INTERFACE "Use the assimp::assimp interface (WIN / OSX)" OFF)
message(
STATUS
"[Qtk] Compiling with ASSIMP_NEW_INTERFACE=${ASSIMP_NEW_INTERFACE}"
)
################################################################################
# External Libraries
################################################################################
# For CLion builds, point CMAKE_PREFIX_PATH to Qt6 install directory
# + QtCreator will handle this for you if that is used instead
list(APPEND CMAKE_PREFIX_PATH "${QT_DIR}")
# Find Qt
find_package(Qt6 COMPONENTS OpenGLWidgets)
if (NOT Qt6_FOUND)
message(
SEND_ERROR "[Qtk] Error: Unable to find Qt6 at CMAKE_PREFIX_PATH: "
"${CMAKE_PREFIX_PATH}"
)
message(
FATAL_ERROR
"[Qtk] Error: Specify path to Qt6 with `cmake "
"-DCMAKE_PREFIX_PATH=/path/to/Qt/6.x.x/gcc_64 -S /path/to/qtk -B "
"/path/to/qtk/build && cmake --build /path/to/qtk/build -j $(nprocs)`"
)
endif()
if (QTK_UPDATE_SUBMODULES)
message(STATUS "[Qtk] Updating submodules...")
include("${CMAKE_SOURCE_DIR}/cmake/include/git_submodule.cmake")
submodule_update("${CMAKE_CURRENT_SOURCE_DIR}/extern/assimp/assimp/")
add_subdirectory("${CMAKE_CURRENT_SOURCE_DIR}/extern/assimp/assimp/")
else()
find_package(assimp REQUIRED)
endif()
################################################################################
# Qtk
################################################################################
set(
PUBLIC_HEADERS
src/qtkwidget.h
src/abstractscene.h
src/camera3d.h
src/mesh.h
src/meshrenderer.h
src/model.h
src/object.h
src/skybox.h
src/texture.h
src/transform3D.h
)
set(
SOURCE_FILES
src/qtkwidget.cpp
src/abstractscene.cpp
src/camera3d.cpp
src/input.cpp
src/input.h
src/mesh.cpp
src/meshrenderer.cpp
src/model.cpp
src/object.cpp
src/qtkapi.h
src/skybox.cpp
src/texture.cpp
src/transform3D.cpp
)
# https://github.com/assimp/assimp/commit/6ac8279977c3a54118551e549d77329497116f66
find_package(assimp REQUIRED)
option(ASSIMP_NEW_INTERFACE "Use assimp::assimp as target instead of assimp" OFF)
include(GenerateExportHeader)
add_library(qtk-widget STATIC ${PUBLIC_HEADERS} ${SOURCE_FILES})
target_include_directories(qtk-widget PRIVATE src/ app/)
set_target_properties(qtk-widget PROPERTIES
PUBLIC_HEADER "${PUBLIC_HEADERS}"
VERSION ${PROJECT_VERSION}
)
target_link_libraries(qtk-widget PUBLIC Qt6::OpenGLWidgets)
target_link_libraries(qtk-widget PUBLIC Qt6::Widgets)
if (QTK_UPDATE_SUBMODULES OR NOT ASSIMP_NEW_INTERFACE)
target_link_libraries(qtk-widget PUBLIC assimp)
elseif(ASSIMP_NEW_INTERFACE)
target_link_libraries(qtk-widget PUBLIC assimp::assimp)
endif()
if(QTK_DEBUG)
message(STATUS "[Qtk] Building with QTK_DEBUG=${QTK_DEBUG}")
target_compile_definitions(qtk-widget PUBLIC QTK_DEBUG)
endif()
if(WIN32)
find_package(OpenGL REQUIRED)
target_link_libraries(qtk-widget PUBLIC OpenGL::GL)
endif()
# Install files
install(TARGETS qtk-widget
# Associate qtk-widget target with qtk-export
EXPORT qtk-export
# <prefix>/bin on DLL systems and <prefix>/lib on non-dll systems
LIBRARY DESTINATION lib
ARCHIVE DESTINATION lib/static
RUNTIME DESTINATION bin
PUBLIC_HEADER DESTINATION include
)
# Install export
# qtkTargets.cmake will only be installed when one of the CONFIGURATIONS is installed
# + The generated import will only reference that qtk configuration
install(EXPORT qtk-export
FILE qtkTargets.cmake
CONFIGURATIONS Debug|Release
DESTINATION ${CMAKE_INSTALL_PREFIX}/cmake
)
################################################################################
# Final Application
################################################################################
set(QTK_RESOURCES "${CMAKE_SOURCE_DIR}/resources")
configure_file(
"${CMAKE_CURRENT_SOURCE_DIR}/src/qtkresources.h.in"
"${CMAKE_CURRENT_BINARY_DIR}/src/qtkresources.h"
@ONLY
)
# Add our Qt resources.qrc file to our application
set(QTK_APP_SOURCES app/main.cpp
app/examplescene.cpp app/examplescene.h
app/mainwindow.cpp app/mainwindow.h app/mainwindow.ui
app/resourcemanager.h
src/qtkresources.h.in
set(SOURCES app/main.cpp)
qt6_add_big_resources(SOURCES resources.qrc)
qt_add_executable(qtk ${SOURCES})
set(SOURCES
src/mainwidget.cpp src/mainwidget.h
src/mainwindow.cpp src/mainwindow.h src/mainwindow.ui
src/input.cpp src/input.h
src/mesh.cpp src/mesh.h
src/texture.cpp src/texture.h
src/object.cpp src/object.h
src/meshrenderer.cpp src/meshrenderer.h
src/camera3d.cpp src/camera3d.h
src/skybox.cpp src/skybox.h
src/transform3D.cpp src/transform3D.h
src/model.cpp src/model.h
src/scene.cpp src/scene.h
src/resourcemanager.cpp src/resourcemanager.h
)
qt6_add_big_resources(QTK_APP_SOURCES resources.qrc)
qt_add_library(main-widget STATIC ${SOURCES})
qt_add_executable(qtk-main ${QTK_APP_SOURCES})
target_include_directories(qtk-main PRIVATE src/ app/)
target_include_directories(main-widget PUBLIC src/)
if(ASSIMP_NEW_INTERFACE)
target_link_libraries(main-widget PRIVATE assimp::assimp)
else()
target_link_libraries(main-widget PRIVATE assimp)
endif()
target_link_libraries(main-widget PUBLIC Qt6::OpenGLWidgets)
if(WIN32)
find_package(OpenGL REQUIRED)
target_link_libraries(main-widget PUBLIC OpenGL::GL)
endif()
# Link qtk-main executable to main qtk-widget library
target_link_libraries(qtk-main PUBLIC qtk-widget)
target_link_libraries(qtk PUBLIC main-widget)
set_target_properties(qtk-main PROPERTIES
# Link qtk executable to main main-widget library
set_target_properties(qtk PROPERTIES
WIN32_EXECUTABLE TRUE
MACOSX_BUNDLE TRUE
MACOSX_BUNDLE_BUNDLE_VERSION ${PROJECT_VERSION}
MACOSX_BUNDLE_SHORT_VERSION_STRING ${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR}
)
install(TARGETS qtk-main
BUNDLE DESTINATION .
LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
)
generate_export_header(qtk-widget)
if(WIN32)
get_target_property(_qt6_qmake_location Qt6::qmake IMPORTED_LOCATION)
execute_process(COMMAND "${_qt6_qmake_location}" -query QT_INSTALL_PREFIX RESULT_VARIABLE return_code OUTPUT_VARIABLE qt6_install_prefix OUTPUT_STRIP_TRAILING_WHITESPACE)
file(TO_NATIVE_PATH "${qt6_install_prefix}/bin" qt6_install_prefix)
if(TARGET Qt6::windeployqt)
add_custom_command(TARGET qtk-main
POST_BUILD
COMMAND set PATH=%PATH%$<SEMICOLON>${qt6_install_prefix}
COMMAND Qt6::windeployqt --dir "${CMAKE_BINARY_DIR}/windeployqt" "$<TARGET_FILE_DIR:qtk-main>/$<TARGET_FILE_NAME:qtk-main>"
)
install(DIRECTORY "${CMAKE_BINARY_DIR}/windeployqt/" DESTINATION bin)
endif()
if(MSVC AND TARGET Qt6::qmake)
set(VSUSER_FILE ${CMAKE_CURRENT_BINARY_DIR}/qtk-main.vcxproj.user)
file(TO_NATIVE_PATH "${CMAKE_BINARY_DIR}/extern/assimp/assimp/bin" assimp_bin)
file(WRITE ${VSUSER_FILE} "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n")
file(APPEND ${VSUSER_FILE} "<Project xmlns=\"http://schemas.microsoft.com/developer/msbuild/2003\">\n")
file(APPEND ${VSUSER_FILE} " <PropertyGroup>\n")
file(APPEND ${VSUSER_FILE} " <LocalDebuggerEnvironment>Path=$(SolutionDir)\\lib\\$(Configuration);${qt6_install_prefix};${assimp_bin};$(Path)\n")
file(APPEND ${VSUSER_FILE} "$(LocalDebuggerEnvironment)</LocalDebuggerEnvironment>\n")
file(APPEND ${VSUSER_FILE} " <DebuggerFlavor>WindowsLocalDebugger</DebuggerFlavor>\n")
file(APPEND ${VSUSER_FILE} " </PropertyGroup>\n")
file(APPEND ${VSUSER_FILE} "</Project>\n")
endif()
endif()
generate_export_header(main-widget)

73
README.md
View File

@ -3,18 +3,18 @@
Practice project for learning about using OpenGL in Qt widget applications.
Model loader using [Assimp](https://assimp.org/) within a Qt widget application.
You can import your own models within `app/examplescene.cpp`, inside the
`ExampleScene::init()` function. Rotations and translations
happen in `ExampleScene::update()`.
You can import your own models within `mainwdget.cpp`, inside the
`MainWidget::initObjects()` function. I've commented throughout the code there
to explain which model or example I'm modifying. Rotations and translations
happen in `MainWidget::update()`, to get textures loading on models look into
[material files](http://www.paulbourke.net/dataformats/mtl/) and see some
examples in the `resources/models/` directory. For more in-depth examples, see
`scene.h` and `scene.cpp`
To get textures loading on models look into [material files](http://www.paulbourke.net/dataformats/mtl/)
and see some examples in the `resources/models/` directory.
### Source Builds
Builds are configured for CLion or [Qt Creator](https://github.com/qt-creator/qt-creator).
Simply open the root `CMakeLists.txt` with either of these editors and configurations will be loaded.
Can be built with cmake manually or using
[Qt Creator](https://github.com/qt-creator/qt-creator).
For the build to be successful, I've found through testing on VMs that the system requires around 6GB of RAM.
This is mostly due to the large .obj files that are built into the project using [Qt Resource System](https://doc.qt.io/qt-6/resources.html)
This project has been ported to Qt6, which is not yet available in Ubuntu apt repositories.
To run this project, you will *need* to install [Qt6 Open Source Binaries](https://www.qt.io/download-qt-installer) for your system.
@ -24,32 +24,10 @@ Once Qt6 is installed, to build and run `qtk` on Ubuntu -
```bash
sudo apt update -y && sudo apt install freeglut3-dev libassimp-dev cmake build-essential git
git clone https://gitlab.com/shaunrd0/qtk
cmake -DCMAKE_PREFIX_PATH=$HOME/Qt/6.3.1/gcc_64 -S qtk/ -B qtk/build/ && cmake --build qtk/build/ -j $(nproc --ignore=2) --target qtk-main
./qtk/build/qtk-main
cmake -DCMAKE_PREFIX_PATH=$HOME/Qt/6.3.1/gcc_64 -S qtk/ -B qtk/build/ && cmake --build qtk/build/ -j $(nprocs)
./qtk/build/qtk
```
By default, the build will initialize Assimp as a git submodule and build from source.
We can turn this off by setting the `-DQTK_UPDATE_SUBMODULES=OFF` flag when running CMake.
This will greatly increase build speed, but we will need to make sure Assimp is available either system-wide or using a custom `CMAKE_PREFIX_PATH`.
Using `-DQTK_UPDATE_SUBMODULES=ON` supports providing assimp on cross-platform builds (Windows / Mac / Linux) and may be easier to configure.
```bash
sudo apt update -y && sudo apt install freeglut3-dev libassimp-dev cmake build-essential git
git clone https://gitlab.com/shaunrd0/qtk
cmake -DQTK_UPDATE_SUBMODULES=OFF -DCMAKE_PREFIX_PATH=$HOME/Qt/6.3.1/gcc_64 -S qtk/ -B qtk/build/ && cmake --build qtk/build/ -j $(nproc --ignore=2) --target qtk-main
# We can also provide a path to assimp -
#cmake -DQTK_UPDATE_SUBMODULES=OFF -DCMAKE_PREFIX_PATH=$HOME/Qt/6.3.1/gcc_64;/path/to/assimp/ -S qtk/ -B qtk/build/ && cmake --build qtk/build/ -j $(nproc --ignore=2) --target qtk-main
./qtk/build/qtk-main
```
If you are building on **Windows / Mac** and bringing your own installation of Assimp, consider setting the `-DASSIMP_NEW_INTERFACE` build flag.
```bash
cmake -DASSIMP_NEW_INTERFACE=ON -DQTK_UPDATE_SUBMODULES=OFF -DCMAKE_PREFIX_PATH=$HOME/Qt/6.3.1/gcc_64;/path/to/assimp/ -S qtk/ -B qtk/build/ && cmake --build qtk/build/ -j $(nproc --ignore=2) --target qtk-main
```
### Controls
You can fly around the scene if you hold the right mouse button and use WASD.
If you see a small triangle floating by a model it represents the light source
that is being used for the shader rendering the model. These appear on models
@ -65,31 +43,9 @@ Spartan with normals -
![](resources/spartan-normals.png)
### QtkWidget in Qt Creator
The `QtkWidget` class is exported as a shared library for use in Qt Creator's design mode.
We can add more QtkWidgets to view and render the scene from multiple perspectives.
There is still some work to be done here, so there isn't a builtin way to add an additional view within the application.
![](resources/qtk-views.png)
After building Qtk, we can drag and drop an `OpenGL Widget` onto the `mainwindow.ui`.
Then right-click the new OpenGLWidget and `Promote To->QtkWidget` to add a second view.
![](resources/qtk-views-setup.png)
If we demote or delete all widgets in `mainwindow.ui` and rebuild the project, Qt Creator will drop `QtkWidget` from the list of possible promoted widgets.
Add an `OpenGL Widget` to the UI, right-click it and navigate to `Promote Widget...` and enter the information below.
![](resources/qtk-reference.png)
After you fill out the `New Promoted Class` form, click `Add` *and*`Promote`, then rebuild.
After following these steps Qt Creator will list `QtkWidget` as an option to promote `OpenGL Widgets` again.
## Model Artists
"Alien Hominid" (https://skfb.ly/onStx) by Nwilly_art is licensed under Creative Commons Attribution (http://creativecommons.org/licenses/by/4.0/).
"Scythe World Of Warcraft" (https://skfb.ly/6UooG) by Warcraft-3D-Models is licensed under Creative Commons Attribution (http://creativecommons.org/licenses/by/4.0/).
@ -103,3 +59,4 @@ Modified (learnopengl.com) material assignment (Joey de Vries) for easier load i
"Terror-bird (NHMW-Geo 2012/0007/0001)" (https://skfb.ly/onAWy) by Natural History Museum Vienna is licensed under Creative Commons Attribution-NonCommercial (http://creativecommons.org/licenses/by-nc/4.0/).
"Golden Lion Sitting OBJ Low Poly FREE" (https://skfb.ly/onZAH) by LordSamueliSolo is licensed under Creative Commons Attribution (http://creativecommons.org/licenses/by/4.0/).

2
app/main.cpp
View File

@ -9,7 +9,7 @@
#include <QApplication>
#include <QLabel>
#include <qtkwidget.h>
#include <mainwidget.h>
#include <mainwindow.h>

28
app/mainwindow.cpp
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@ -1,28 +0,0 @@
#include <mainwindow.h>
#include <qtkwidget.h>
#include "ui_mainwindow.h"
MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow)
{
ui->setupUi(this);
// For use in design mode using Qt Creator
// + We can use the `ui` member to access nested widgets by name
for (const auto widget : ui->qWidget->children()) {
auto qtkWidget = dynamic_cast<Qtk::QtkWidget*>(widget);
if (qtkWidget != nullptr) {
std::string key = qtkWidget->objectName().toStdString();
if (mScenes[key] == nullptr) {
mScenes[qtkWidget->objectName().toStdString()] = new ExampleScene();
}
qtkWidget->setScene(mScenes[qtkWidget->objectName().toStdString()]);
}
}
setWindowIcon(QIcon("../resources/icon.png"));
}
MainWindow::~MainWindow()
{
delete ui;
}

32
cmake/include/git_submodule.cmake
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@ -1,32 +0,0 @@
################################################################################
## Author: Shaun Reed | Contact: shaunrd0@gmail.com | URL: www.shaunreed.com ##
## ##
## CMake function to update git submodules ##
################################################################################
include_guard()
find_package(Git)
# _PATH: Path to git submodule location that we want to update
# + submodule_update(extern/assimp)
function(submodule_update _PATH)
if (NOT QTK_UPDATE_SUBMODULES)
return()
endif()
if (NOT GIT_FOUND)
message(FATAL_ERROR "[Qtk] Error: No git executable found")
endif()
execute_process(
COMMAND ${GIT_EXECUTABLE} submodule update --init --force "${_PATH}"
RESULT_VARIABLE result
)
if (NOT result EQUAL 0)
message(
FATAL_ERROR
"[Qtk] Error: Unable to update git submodule at ${_PATH}"
)
endif()
endfunction()

1
extern/assimp/assimp vendored

@ -1 +0,0 @@
Subproject commit bd64cc88dff17f118ecf32ebcbacaf566f6b6449

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48
src/abstractscene.cpp
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@ -1,48 +0,0 @@
/*##############################################################################
## Author: Shaun Reed ##
## Legal: All Content (c) 2022 Shaun Reed, all rights reserved ##
## About: Classes for managing objects and data within a scene ##
## ##
## Contact: shaunrd0@gmail.com | URL: www.shaunreed.com | GitHub: shaunrd0 ##
##############################################################################*/
#include <abstractscene.h>
#include <camera3d.h>
#include <resourcemanager.h>
#include <texture.h>
using namespace Qtk;
Camera3D Scene::mCamera;
QMatrix4x4 Scene::mProjection;
/*******************************************************************************
* Constructors, Destructors
******************************************************************************/
Scene::Scene()
{
mCamera.transform().setTranslation(0.0f, 0.0f, 20.0f);
mCamera.transform().setRotation(-5.0f, 0.0f, 1.0f, 0.0f);
}
Scene::~Scene()
{
for (auto & mesh : mMeshes) delete mesh;
for (auto & model : mModels) delete model;
if (mSkybox != Q_NULLPTR) delete mSkybox;
}
void Scene::privDraw()
{
if (!mInit) {
initializeOpenGLFunctions();
init();
mInit = true;
}
if (mSkybox != Q_NULLPTR) mSkybox->draw();
for (auto & model : mModels) model->draw();
for (const auto & mesh : mMeshes) mesh->draw();
}

55
src/abstractscene.h
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@ -1,55 +0,0 @@
/*##############################################################################
## Author: Shaun Reed ##
## Legal: All Content (c) 2022 Shaun Reed, all rights reserved ##
## About: Classes for managing objects and data within a scene ##
## ##
## Contact: shaunrd0@gmail.com | URL: www.shaunreed.com | GitHub: shaunrd0 ##
##############################################################################*/
#ifndef QTK_SCENE_H
#define QTK_SCENE_H
#include <camera3d.h>
#include <meshrenderer.h>
#include <model.h>
#include <skybox.h>
#include <QMatrix4x4>
namespace Qtk {
class Scene : protected QOpenGLFunctions {
friend class MainWidget;
public:
Scene();
~Scene();
virtual void init() = 0;
virtual void draw() { privDraw(); };
virtual void update() = 0;
static Camera3D & Camera() { return mCamera;}
static QMatrix4x4 View() { return mCamera.toMatrix();}
static QMatrix4x4 & Projection() { return mProjection;}
inline Skybox * getSkybox() {return mSkybox;}
inline void setSkybox(Skybox * skybox) {
mSkybox = skybox;
}
private:
static Camera3D mCamera;
static QMatrix4x4 mProjection;
bool mInit = false;
void privDraw();
protected:
Skybox * mSkybox;
std::vector<MeshRenderer *> mMeshes;
std::vector<Model *> mModels;
};
}
#endif // QTK_SCENE_H

1
src/camera3d.cpp
View File

@ -8,7 +8,6 @@
#include <camera3d.h>
using namespace Qtk;
const QVector3D Camera3D::LocalForward(0.0f, 0.0f, -1.0f);
const QVector3D Camera3D::LocalUp(0.0f, 1.0f, 0.0f);

22
src/camera3d.h
View File

@ -12,11 +12,10 @@
#include <QDebug>
#include <transform3D.h>
#include <qtkapi.h>
namespace Qtk {
class QTKAPI Camera3D {
public:
class Camera3D {
public:
// Constants
static const QVector3D LocalForward;
static const QVector3D LocalUp;
@ -38,7 +37,7 @@ namespace Qtk {
inline QVector3D up() const
{ return mTransform.rotation().rotatedVector(LocalUp);}
private:
private:
Transform3D mTransform;
QMatrix4x4 mWorld;
@ -46,19 +45,18 @@ namespace Qtk {
friend QDataStream & operator<<(QDataStream & out, Camera3D & transform);
friend QDataStream & operator>>(QDataStream & in, Camera3D & transform);
#endif
};
};
Q_DECLARE_TYPEINFO(Camera3D, Q_MOVABLE_TYPE);
// Qt Streams
#ifndef QT_NO_DATASTREAM
QDataStream & operator<<(QDataStream & out, const Camera3D & transform);
QDataStream & operator>>(QDataStream & in, Camera3D & transform);
QDataStream & operator<<(QDataStream & out, const Camera3D & transform);
QDataStream & operator>>(QDataStream & in, Camera3D & transform);
#endif
#ifndef QT_NO_DEBUG_STREAM
QDebug operator<<(QDebug dbg, const Camera3D & transform);
QDebug operator<<(QDebug dbg, const Camera3D & transform);
#endif
}
Q_DECLARE_TYPEINFO(Qtk::Camera3D, Q_MOVABLE_TYPE);
#endif // QTK_CAMERA3D_H

1
src/input.cpp
View File

@ -13,7 +13,6 @@
#include <input.h>
using namespace Qtk;
/*******************************************************************************
* Static Helper Structs

16
src/input.h
View File

@ -12,13 +12,11 @@
#include <QPoint>
#include <Qt>
#include <qtkapi.h>
#include <qtkwidget.h>
namespace Qtk {
class QTKAPI Input {
friend class Qtk::QtkWidget;
public:
class Input {
friend class MainWidget;
public:
// Possible key states
enum InputState
{
@ -51,7 +49,8 @@ namespace Qtk {
static QPoint mousePosition();
static QPoint mouseDelta();
private:
private:
// State updating
static void update();
static void registerKeyPress(int key);
@ -59,7 +58,6 @@ namespace Qtk {
static void registerMousePress(Qt::MouseButton button);
static void registerMouseRelease(Qt::MouseButton button);
static void reset();
};
}
};
#endif // QTOPENGL_INPUT_H

105
src/qtkwidget.cpp → src/mainwidget.cpp
View File

@ -9,36 +9,36 @@
#include <QKeyEvent>
#include <input.h>
#include <qtkwidget.h>
#include <mesh.h>
#include <abstractscene.h>
#include <object.h>
#include <scene.h>
#include <mainwidget.h>
using namespace Qtk;
/*******************************************************************************
* Constructors, Destructors
******************************************************************************/
QtkWidget::QtkWidget() : mScene(Q_NULLPTR), mDebugLogger(Q_NULLPTR)
MainWidget::MainWidget() : mDebugLogger(Q_NULLPTR)
{
initializeWidget();
}
// Constructor for using this widget in QtDesigner
QtkWidget::QtkWidget(QWidget *parent) : QOpenGLWidget(parent),
mScene(Q_NULLPTR), mDebugLogger(Q_NULLPTR)
MainWidget::MainWidget(QWidget *parent) : QOpenGLWidget(parent), mDebugLogger(Q_NULLPTR)
{
initializeWidget();
}
QtkWidget::QtkWidget(const QSurfaceFormat &format)
: mScene(Q_NULLPTR), mDebugLogger(Q_NULLPTR)
MainWidget::MainWidget(const QSurfaceFormat &format)
: mDebugLogger(Q_NULLPTR)
{
setFormat(format);
setFocusPolicy(Qt::ClickFocus);
}
QtkWidget::~QtkWidget()
MainWidget::~MainWidget()
{
makeCurrent();
teardownGL();
@ -49,26 +49,80 @@ QtkWidget::~QtkWidget()
* Private Member Functions
******************************************************************************/
void QtkWidget::teardownGL()
void MainWidget::teardownGL()
{
// Nothing to teardown yet...
}
void MainWidget::initObjects()
{
mScene = new Scene;
// Drawing a primitive object using Qt and OpenGL
// The Object class only stores basic QOpenGL* members and shape data
// + Within mainwidget, mObject serves as a basic QOpenGL example
mObject = new Object("testObject");
mObject->setVertices(Cube(QTK_DRAW_ELEMENTS).vertices());
mObject->setIndices(Cube(QTK_DRAW_ELEMENTS).indices());
mObject->mProgram.create();
mObject->mProgram.addShaderFromSourceFile(QOpenGLShader::Vertex,
":/solid-ambient.vert");
mObject->mProgram.addShaderFromSourceFile(QOpenGLShader::Fragment,
":/solid-ambient.frag");
mObject->mProgram.link();
mObject->mProgram.bind();
mObject->mVAO.create();
mObject->mVAO.bind();
mObject->mVBO.create();
mObject->mVBO.setUsagePattern(QOpenGLBuffer::StaticDraw);
mObject->mVBO.bind();
mObject->mVBO.allocate(mObject->vertices().data(),
mObject->vertices().size()
* sizeof(mObject->vertices()[0]));
mObject->mProgram.enableAttributeArray(0);
mObject->mProgram.setAttributeBuffer(0, GL_FLOAT, 0,
3, sizeof(mObject->vertices()[0]));
mObject->mProgram.setUniformValue("uColor", QVector3D(1.0f, 0.0f, 0.0f));
mObject->mProgram.setUniformValue("uLightColor", WHITE);
mObject->mProgram.setUniformValue("uAmbientStrength", 0.75f);
mObject->mVBO.release();
mObject->mVAO.release();
mObject->mProgram.release();
mObject->mTransform.setTranslation(13.0f, 0.0f, -2.0f);
}
/*******************************************************************************
* Inherited Virtual Member Functions
******************************************************************************/
void QtkWidget::paintGL()
void MainWidget::paintGL()
{
// Clear buffers
glClear(GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT);
// Draw the scene first, since it handles drawing our skybox
if (mScene != Q_NULLPTR) mScene->draw();
mScene->draw();
// Draw any additional objects within mainwidget manually
mObject->mProgram.bind();
mObject->mVAO.bind();
mObject->mProgram.setUniformValue("uModel", mObject->mTransform.toMatrix());
mObject->mProgram.setUniformValue("uView", Scene::Camera().toMatrix());
mObject->mProgram.setUniformValue("uProjection", Scene::Projection());
glDrawElements(GL_TRIANGLES, mObject->indices().size(),
GL_UNSIGNED_INT, mObject->indices().data());
mObject->mVAO.release();
mObject->mProgram.release();
}
void QtkWidget::initializeGL()
void MainWidget::initializeGL()
{
initializeOpenGLFunctions();
// Connect the frameSwapped signal to call the update() function
@ -96,9 +150,12 @@ void QtkWidget::initializeGL()
glClearDepth(1.0f);
glClearColor(0.0f, 0.25f, 0.0f, 0.0f);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
// Initialize default objects within the scene
initObjects();
}
void QtkWidget::resizeGL(int width, int height)
void MainWidget::resizeGL(int width, int height)
{
Scene::Projection().setToIdentity();
Scene::Projection().perspective(45.0f,
@ -111,16 +168,16 @@ void QtkWidget::resizeGL(int width, int height)
* Protected Slots
******************************************************************************/
void QtkWidget::update()
void MainWidget::update()
{
updateCameraInput();
if (mScene != Q_NULLPTR) mScene->update();
mScene->update();
QWidget::update();
}
void QtkWidget::messageLogged(const QOpenGLDebugMessage &msg)
void MainWidget::messageLogged(const QOpenGLDebugMessage &msg)
{
QString error;
@ -185,7 +242,7 @@ void QtkWidget::messageLogged(const QOpenGLDebugMessage &msg)
* Protected Helpers
******************************************************************************/
void QtkWidget::keyPressEvent(QKeyEvent *event)
void MainWidget::keyPressEvent(QKeyEvent *event)
{
if (event->isAutoRepeat()) {
// Do not repeat input while a key is held down
@ -195,7 +252,7 @@ void QtkWidget::keyPressEvent(QKeyEvent *event)
}
}
void QtkWidget::keyReleaseEvent(QKeyEvent *event)
void MainWidget::keyReleaseEvent(QKeyEvent *event)
{
if (event->isAutoRepeat()) {
event->ignore();
@ -204,12 +261,12 @@ void QtkWidget::keyReleaseEvent(QKeyEvent *event)
}
}
void QtkWidget::mousePressEvent(QMouseEvent *event)
void MainWidget::mousePressEvent(QMouseEvent *event)
{
Input::registerMousePress(event->button());
}
void QtkWidget::mouseReleaseEvent(QMouseEvent *event)
void MainWidget::mouseReleaseEvent(QMouseEvent *event)
{
Input::registerMouseRelease(event->button());
}
@ -219,7 +276,7 @@ void QtkWidget::mouseReleaseEvent(QMouseEvent *event)
* Private Helpers
******************************************************************************/
void QtkWidget::initializeWidget()
void MainWidget::initializeWidget()
{
QSurfaceFormat format;
format.setRenderableType(QSurfaceFormat::OpenGL);
@ -237,7 +294,7 @@ void QtkWidget::initializeWidget()
setFocusPolicy(Qt::ClickFocus);
}
void QtkWidget::printContextInformation()
void MainWidget::printContextInformation()
{
QString glType;
QString glVersion;
@ -273,7 +330,7 @@ void QtkWidget::printContextInformation()
}
void QtkWidget::updateCameraInput()
void MainWidget::updateCameraInput()
{
Input::update();
// Camera Transformation

71
src/mainwidget.h Normal file
View File

@ -0,0 +1,71 @@
/*##############################################################################
## Author: Shaun Reed ##
## Legal: All Content (c) 2022 Shaun Reed, all rights reserved ##
## About: Main window for Qt6 OpenGL widget application ##
## ##
## Contact: shaunrd0@gmail.com | URL: www.shaunreed.com | GitHub: shaunrd0 ##
##############################################################################*/
#ifndef QTK_MAINWIDGET_H
#define QTK_MAINWIDGET_H
#include <iostream>
#include <QMatrix4x4>
#include <QOpenGLDebugLogger>
#include <QOpenGLFunctions>
#include <QOpenGLWidget>
#define QTK_DEBUG
class MeshRenderer;
class Model;
class Object;
class Scene;
class Skybox;
class Texture;
class MainWidget : public QOpenGLWidget,
protected QOpenGLFunctions {
Q_OBJECT;
public:
// Constructors
MainWidget();
explicit MainWidget(QWidget *parent);
explicit MainWidget(const QSurfaceFormat &format);
~MainWidget() override;
private:
void teardownGL();
void initObjects();
public:
// Inherited virtual Members
void paintGL() override;
void initializeGL() override;
void resizeGL(int width, int height) override;
protected slots:
void update();
void messageLogged(const QOpenGLDebugMessage &msg);
// Protected Helpers
protected:
void keyPressEvent(QKeyEvent *event);
void keyReleaseEvent(QKeyEvent *event);
void mousePressEvent(QMouseEvent *event);
void mouseReleaseEvent(QMouseEvent *event);
private:
// Private helpers
void initializeWidget();
void printContextInformation();
void updateCameraInput();
Scene * mScene;
Object * mObject;
QOpenGLDebugLogger * mDebugLogger;
};
#endif // QTK_MAINWIDGET_H

15
src/mainwindow.cpp Normal file
View File

@ -0,0 +1,15 @@
#include "mainwindow.h"
#include "ui_mainwindow.h"
MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow)
{
ui->setupUi(this);
setWindowIcon(QIcon("../resources/icon.png"));
}
MainWindow::~MainWindow()
{
delete ui;
}

9
app/mainwindow.h → src/mainwindow.h
View File

@ -1,19 +1,15 @@
#ifndef MAINWINDOW_H
#define MAINWINDOW_H
#include <unordered_map>
#include <QMainWindow>
#include "qtk-widget_export.h"
#include <examplescene.h>
#include "main-widget_export.h"
namespace Ui {
class MainWindow;
}
class QTK_WIDGET_EXPORT MainWindow : public QMainWindow
class MAIN_WIDGET_EXPORT MainWindow : public QMainWindow
{
Q_OBJECT
@ -23,7 +19,6 @@ public:
private:
Ui::MainWindow *ui;
std::unordered_map<std::string, Qtk::Scene*> mScenes;
};
#endif // MAINWINDOW_H

20
app/mainwindow.ui → src/mainwindow.ui
View File

@ -14,27 +14,17 @@
<string>Qtk - MainWindow</string>
</property>
<widget class="QWidget" name="centralwidget">
<widget class="QWidget" name="qWidget" native="true">
<property name="geometry">
<rect>
<x>0</x>
<y>0</y>
<width>801</width>
<height>561</height>
</rect>
</property>
<widget class="Qtk::QtkWidget" name="openGLWidget">
<widget class="MainWidget" name="openGLWidget">
<property name="geometry">
<rect>
<x>10</x>
<y>10</y>
<width>781</width>
<height>541</height>
<width>775</width>
<height>550</height>
</rect>
</property>
</widget>
</widget>
</widget>
<widget class="QMenuBar" name="menubar">
<property name="geometry">
<rect>
@ -104,9 +94,9 @@
</widget>
<customwidgets>
<customwidget>
<class>Qtk::QtkWidget</class>
<class>MainWidget</class>
<extends>QOpenGLWidget</extends>
<header>qtkwidget.h</header>
<header>mainwidget.h</header>
</customwidget>
</customwidgets>
<resources/>

1
src/mesh.cpp
View File

@ -8,7 +8,6 @@
#include <mesh.h>
using namespace Qtk;
Cube::Cube(DrawMode mode)
{

56
src/mesh.h
View File

@ -12,27 +12,25 @@
#include <QVector2D>
#include <QVector3D>
#include <qtkapi.h>
#include <transform3D.h>
namespace Qtk {
class MeshRenderer;
class Object;
class MeshRenderer;
class Object;
// Define vertices for drawing a cube using two faces (8 vertex points)
// Front Vertices
// Define vertices for drawing a cube using two faces (8 vertex points)
// Front Vertices
#define VERTEX_FTR QVector3D( 0.5f, 0.5f, 0.5f) // 1
#define VERTEX_FTL QVector3D(-0.5f, 0.5f, 0.5f) // 2
#define VERTEX_FBL QVector3D(-0.5f, -0.5f, 0.5f) // 3
#define VERTEX_FBR QVector3D( 0.5f, -0.5f, 0.5f) // 4
// Back Vertices
// Back Vertices
#define VERTEX_BTR QVector3D( 0.5f, 0.5f, -0.5f) // 5
#define VERTEX_BTL QVector3D(-0.5f, 0.5f, -0.5f) // 6
#define VERTEX_BBL QVector3D(-0.5f, -0.5f, -0.5f) // 7
#define VERTEX_BBR QVector3D( 0.5f, -0.5f, -0.5f) // 8
// Direction vectors
// Direction vectors
#define VECTOR_UP QVector3D(0.0f, 1.0f, 0.0f)
#define VECTOR_DOWN QVector3D(0.0f, -1.0f, 0.0f)
#define VECTOR_LEFT QVector3D(-1.0f, 0.0f, 0.0f)
@ -40,11 +38,11 @@ namespace Qtk {
#define VECTOR_FORWARD QVector3D(0.0f, 0.0f, 1.0f)
#define VECTOR_BACK QVector3D(0.0f, 0.0f, -1.0f)
// Identity and zero vectors
// Identity and zero vectors
#define VECTOR_ONE QVector3D(1.0f, 1.0f, 1.0f)
#define VECTOR_ZERO QVector3D(0.0f, 0.0f, 0.0f)
// A series of direction vectors to represent cube face normal
// A series of direction vectors to represent cube face normal
#define FACE_TOP VECTOR_UP, VECTOR_UP, VECTOR_UP, \
VECTOR_UP, VECTOR_UP, VECTOR_UP
#define FACE_BOTTOM VECTOR_DOWN, VECTOR_DOWN, VECTOR_DOWN, \
@ -58,7 +56,7 @@ namespace Qtk {
#define FACE_BACK VECTOR_BACK, VECTOR_BACK, VECTOR_BACK, \
VECTOR_BACK, VECTOR_BACK, VECTOR_BACK
// Colors using QVector3Ds as RGB values
// Colors using QVector3Ds as RGB values
#define WHITE VECTOR_ONE
#define BLACK VECTOR_ZERO
#define RED QVector3D(1.0f, 0.0f, 0.0f)
@ -73,15 +71,16 @@ namespace Qtk {
#define UV_RIGHT QVector2D(0.0f, 1.0f)
#define UV_CORNER QVector2D(1.0f, 1.0f)
typedef std::vector<QVector3D> Vertices;
typedef std::vector<QVector3D> Colors;
typedef std::vector<GLuint> Indices;
typedef std::vector<QVector2D> TexCoords;
typedef std::vector<QVector3D> Normals;
enum DrawMode { QTK_DRAW_ARRAYS, QTK_DRAW_ELEMENTS, QTK_DRAW_ELEMENTS_NORMALS };
typedef std::vector<QVector3D> Vertices;
typedef std::vector<QVector3D> Colors;
typedef std::vector<GLuint> Indices;
typedef std::vector<QVector2D> TexCoords;
typedef std::vector<QVector3D> Normals;
struct QTKAPI ShapeBase {
enum DrawMode { QTK_DRAW_ARRAYS, QTK_DRAW_ELEMENTS, QTK_DRAW_ELEMENTS_NORMALS };
struct ShapeBase {
ShapeBase(DrawMode mode=QTK_DRAW_ARRAYS, Vertices v={},Indices i={}, Colors c={},
TexCoords t={}, Normals n={})
: mVertices(v), mColors(c), mIndices(i), mTexCoords(t), mNormals(n)
@ -93,7 +92,7 @@ namespace Qtk {
inline const TexCoords & texCoords() const { return mTexCoords;}
inline const Normals & normals() const { return mNormals;}
protected:
protected:
DrawMode mDrawMode;
Vertices mVertices;
@ -101,9 +100,9 @@ namespace Qtk {
Indices mIndices;
TexCoords mTexCoords;
Normals mNormals;
};
};
struct Shape : public ShapeBase {
struct Shape : public ShapeBase {
friend MeshRenderer;
friend Object;
Shape () {}
@ -115,20 +114,19 @@ namespace Qtk {
virtual inline void setTexCoords(const TexCoords & value) {mTexCoords = value;}
virtual inline void setNormals(const Normals & value) {mNormals = value;}
virtual inline void setShape(const Shape & value) { *this = value;}
};
};
// Primitives inherit from ShapeBase, does not allow setting of shape values
class QTKAPI Mesh {
class Mesh {
};
};
struct QTKAPI Cube : public ShapeBase {
struct Cube : public ShapeBase {
Cube(DrawMode mode=QTK_DRAW_ARRAYS);
};
};
struct QTKAPI Triangle : public ShapeBase {
struct Triangle : public ShapeBase {
Triangle(DrawMode mode=QTK_DRAW_ARRAYS);
};
}
};
#endif // QTK_MESH_H

8
src/meshrenderer.cpp
View File

@ -8,14 +8,14 @@
#include <QImageReader>
#include <abstractscene.h>
#include <meshrenderer.h>
#include <scene.h>
#include <texture.h>
using namespace Qtk;
#include <meshrenderer.h>
// Static QHash that holds all MeshRenderer instances using their mName as keys
Qtk::MeshRenderer::MeshManager Qtk::MeshRenderer::sInstances;
MeshRenderer::MeshManager MeshRenderer::sInstances;
MeshRenderer::MeshRenderer(const char * name, const ShapeBase & shape)
: Object(name, shape), mVertexShader(":/multi-color.vert"),

11
src/meshrenderer.h
View File

@ -10,12 +10,10 @@
#include <mesh.h>
#include <object.h>
#include <qtkapi.h>
namespace Qtk {
class QTKAPI MeshRenderer : public Object {
public:
class MeshRenderer : public Object {
public:
// Delegate constructors
MeshRenderer(const char * name, Vertices vertices, Indices indices,
DrawMode mode=QTK_DRAW_ARRAYS)
@ -68,13 +66,12 @@ namespace Qtk {
// Static QHash of all mesh objects within the scene
typedef QHash<QString, MeshRenderer *> MeshManager;
private:
private:
static MeshManager sInstances;
int mDrawType;
bool mHasTexture;
std::string mVertexShader, mFragmentShader;
};
}
};
#endif // QTK_MESHRENDERER_H

8
src/model.cpp
View File

@ -9,12 +9,12 @@
#include <QFileInfo>
#include <abstractscene.h>
#include <model.h>
#include <resourcemanager.h>
#include <scene.h>
#include <texture.h>
#include <resourcemanager.h>
#include <model.h>
using namespace Qtk;
Model::ModelManager Model::mManager;

35
src/model.h
View File

@ -16,6 +16,7 @@
#include <QOpenGLShaderProgram>
#include <QOpenGLTexture>
#include <QOpenGLVertexArrayObject>
#include <QOpenGLFunctions>
// Assimp
#include <assimp/Importer.hpp>
@ -23,29 +24,28 @@
#include <assimp/scene.h>
// QTK
#include <qtkapi.h>
#include <transform3D.h>
namespace Qtk {
struct QTKAPI ModelVertex {
struct ModelVertex {
QVector3D mPosition;
QVector3D mNormal;
QVector3D mTangent;
QVector3D mBitangent;
QVector2D mTextureCoord;
};
};
struct QTKAPI ModelTexture {
struct ModelTexture {
GLuint mID;
QOpenGLTexture * mTexture;
std::string mType;
std::string mPath;
};
};
class Model;
class Model;
class QTKAPI ModelMesh : protected QOpenGLFunctions {
public:
class ModelMesh : protected QOpenGLFunctions {
public:
friend Model;
typedef std::vector<ModelVertex> Vertices;
typedef std::vector<GLuint> Indices;
@ -65,7 +65,7 @@ namespace Qtk {
{ initMesh(vertexShader, fragmentShader);}
~ModelMesh() {}
private:
private:
void initMesh(const char * vert, const char * frag);
// ModelMesh Private Members
@ -73,7 +73,7 @@ namespace Qtk {
QOpenGLVertexArrayObject * mVAO;
QOpenGLShaderProgram * mProgram;
public:
public:
inline void draw() { draw(*mProgram);}
void draw(QOpenGLShaderProgram & shader);
@ -82,13 +82,13 @@ namespace Qtk {
Indices mIndices;
Textures mTextures;
Transform3D mTransform;
};
};
class QTKAPI Model : public QObject {
Q_OBJECT
class Model : public QObject {
Q_OBJECT
public:
public:
inline Model(const char * name, const char * path,
const char * vertexShader=":/model-basic.vert",
const char * fragmentShader=":/model-basic.frag")
@ -120,7 +120,7 @@ namespace Qtk {
static Model * getInstance(const char * name);
typedef QHash<QString, Model *> ModelManager;
private:
private:
static ModelManager mManager;
void loadModel(const std::string & path);
void processNode(aiNode * node, const aiScene * scene);
@ -135,7 +135,6 @@ namespace Qtk {
std::vector<ModelMesh> mMeshes;
std::string mDirectory;
const char * mVertexShader, * mFragmentShader, * mName;
};
}
};
#endif // QTK_MODEL_H

2
src/object.cpp
View File

@ -7,5 +7,3 @@
##############################################################################*/
#include <object.h>
using namespace Qtk;

14
src/object.h
View File

@ -14,13 +14,12 @@
#include <QOpenGLVertexArrayObject>
#include <mesh.h>
#include <qtkapi.h>
namespace Qtk {
class QTKAPI Object : public QObject {
Q_OBJECT
public:
class Object : public QObject {
Q_OBJECT
public:
friend MeshRenderer;
// Initialize an object with no shape data assigned
Object(const char * name)
@ -55,9 +54,8 @@ namespace Qtk {
Shape mShape;
const char * mName;
private:
private:
QOpenGLTexture * mTexture;
};
}
};
#endif // QTK_OBJECT_H

2
src/qtkresources.h.in
View File

@ -1,2 +0,0 @@
#define QTK_RESOURCES "@QTK_RESOURCES@"

74
src/qtkwidget.h
View File

@ -1,74 +0,0 @@
/*##############################################################################
## Author: Shaun Reed ##
## Legal: All Content (c) 2022 Shaun Reed, all rights reserved ##
## About: Main window for Qt6 OpenGL widget application ##
## ##
## Contact: shaunrd0@gmail.com | URL: www.shaunreed.com | GitHub: shaunrd0 ##
##############################################################################*/
#ifndef QTK_QTKWIDGET_H
#define QTK_QTKWIDGET_H
#include <iostream>
#include <QMatrix4x4>
#include <QOpenGLDebugLogger>
#include <QOpenGLFunctions>
#include <QOpenGLWidget>
#include <qtkapi.h>
#include <abstractscene.h>
namespace Qtk {
class QTKAPI QtkWidget : public QOpenGLWidget,
protected QOpenGLFunctions {
Q_OBJECT;
public:
// Constructors
QtkWidget();
explicit QtkWidget(QWidget *parent);
explicit QtkWidget(const QSurfaceFormat &format);
~QtkWidget() override;
private:
void teardownGL();
public:
// Inherited virtual Members
void paintGL() override;
void initializeGL() override;
void resizeGL(int width, int height) override;
inline Qtk::Scene * getScene() {return mScene;}
inline void setScene(Qtk::Scene * scene) {
if (mScene != Q_NULLPTR) delete mScene;
mScene = scene;
}
protected slots:
void update();
#ifdef QTK_DEBUG
void messageLogged(const QOpenGLDebugMessage &msg);
#endif
// Protected Helpers
protected:
void keyPressEvent(QKeyEvent *event);
void keyReleaseEvent(QKeyEvent *event);
void mousePressEvent(QMouseEvent *event);
void mouseReleaseEvent(QMouseEvent *event);
private:
// Private helpers
void initializeWidget();
void updateCameraInput();
Qtk::Scene * mScene;
#ifdef QTK_DEBUG
void printContextInformation();
QOpenGLDebugLogger * mDebugLogger;
#endif
};
}
#endif // QTK_QTKWIDGET_H

27
src/qtkapi.h → src/resourcemanager.cpp
View File

@ -1,23 +1,24 @@
/*##############################################################################
## Author: Shaun Reed ##
## Legal: All Content (c) 2022 Shaun Reed, all rights reserved ##
## About: Main window for Qt6 OpenGL widget application ##
## About: Manage files and resources used by qtk ##
## ##
## Contact: shaunrd0@gmail.com | URL: www.shaunreed.com | GitHub: shaunrd0 ##
##############################################################################*/
#ifndef QTK_QTKAPI_H
#define QTK_QTKAPI_H
#include <QtCore/QtGlobal>
#include "resourcemanager.h"
#include <algorithm>
#include <string>
#include <QtGlobal>
#ifdef QTK_SHARED
# if defined(QTK_EXPORT)
# define QTKAPI Q_DECL_EXPORT
# else
# define QTKAPI Q_DECL_IMPORT
# endif
#else
# define QTKAPI
static std::string nixPath(std::string path)
{
#ifdef Q_OS_WINDOWS
std::replace(path.begin(), path.end(), '\\', '/');
#endif
return path;
}
#endif //QTK_QTKAPI_H
std::string RM::resourcesDir =
std::string(__FILE__).substr(0, nixPath(__FILE__).find("src/"))
+ "resources/";

6
app/resourcemanager.h → src/resourcemanager.h
View File

@ -8,8 +8,6 @@
#include <string>
#include <src/qtkresources.h>
#ifndef QTK_RESOURCEMANAGER_H
#define QTK_RESOURCEMANAGER_H
@ -28,8 +26,10 @@ public:
*/
static std::string getPath(const std::string & path) {
// Only construct qtk resource path if in qrc format; else return it as-is
return path[0] == ':' ? QTK_RESOURCES + path.substr(1) : path;
return path[0] == ':' ? resourcesDir + path.substr(2) : path;
}
static std::string resourcesDir;
} RM;
#endif //QTK_RESOURCEMANAGER_H

133
app/examplescene.cpp → src/scene.cpp
View File

@ -6,27 +6,32 @@
## Contact: shaunrd0@gmail.com | URL: www.shaunreed.com | GitHub: shaunrd0 ##
##############################################################################*/
#include <abstractscene.h>
#include <camera3d.h>
#include <texture.h>
#include <meshrenderer.h>
#include <model.h>
#include <resourcemanager.h>
#include <examplescene.h>
#include <texture.h>
using namespace Qtk;
#include <scene.h>
Camera3D Scene::mCamera;
QMatrix4x4 Scene::mProjection;
/*******************************************************************************
* Constructors, Destructors
******************************************************************************/
ExampleScene::ExampleScene()
Scene::Scene()
{
Camera().transform().setTranslation(0.0f, 0.0f, 20.0f);
Camera().transform().setRotation(-5.0f, 0.0f, 1.0f, 0.0f);
mCamera.transform().setTranslation(0.0f, 0.0f, 20.0f);
mCamera.transform().setRotation(-5.0f, 0.0f, 1.0f, 0.0f);
init();
}
ExampleScene::~ExampleScene()
Scene::~Scene()
{
delete mTestPhong;
delete mTestSpecular;
@ -34,7 +39,6 @@ ExampleScene::~ExampleScene()
delete mTestAmbient;
for (auto & mesh : mMeshes) delete mesh;
for (auto & model : mModels) delete model;
delete mSkybox;
}
@ -42,13 +46,10 @@ ExampleScene::~ExampleScene()
* Public Member Functions
******************************************************************************/
void ExampleScene::init()
void Scene::init()
{
Qtk::Skybox * sb = new Qtk::Skybox("Skybox");
setSkybox(sb);
// Initialize Phong example cube
mTestPhong = new Qtk::MeshRenderer("phong", Qtk::Cube());
mTestPhong = new MeshRenderer("phong", Cube());
mTestPhong->mTransform.setTranslation(3.0f, 0.0f, -2.0f);
mTestPhong->setShaders(":/solid-phong.vert", ":/solid-phong.frag");
mTestPhong->init();
@ -75,7 +76,7 @@ void ExampleScene::init()
// Initialize Ambient example cube
mTestAmbient = new Qtk::MeshRenderer("ambient", Cube());
mTestAmbient = new MeshRenderer("ambient", Cube());
mTestAmbient->mTransform.setTranslation(7.0f, 0.0f, -2.0f);
mTestAmbient->setShaders(":/solid-ambient.vert", ":/solid-ambient.frag");
mTestAmbient->init();
@ -99,7 +100,7 @@ void ExampleScene::init()
mTestAmbient->mProgram.release();
// Initialize Diffuse example cube
mTestDiffuse = new Qtk::MeshRenderer("diffuse", Cube());
mTestDiffuse = new MeshRenderer("diffuse", Cube());
mTestDiffuse->mTransform.setTranslation(9.0f, 0.0f, -2.0f);
mTestDiffuse->setShaders(":/solid-diffuse.vert", ":/solid-diffuse.frag");
mTestDiffuse->init();
@ -123,7 +124,7 @@ void ExampleScene::init()
mTestDiffuse->mProgram.release();
// Initialize Specular example cube
mTestSpecular = new Qtk::MeshRenderer("specular", Cube());
mTestSpecular = new MeshRenderer("specular", Cube());
mTestSpecular->mTransform.setTranslation(11.0f, 0.0f, -2.0f);
mTestSpecular->setShaders(":/solid-specular.vert", ":/solid-specular.frag");
mTestSpecular->init();
@ -151,31 +152,31 @@ void ExampleScene::init()
//
// Model loading
mModels.push_back(new Qtk::Model("backpack", ":/models/backpack/backpack.obj"));
mModels.push_back(new Model("backpack", ":/models/backpack/backpack.obj"));
// Sometimes model textures need flipped in certain directions
mModels.back()->flipTexture("diffuse.jpg", false, true);
mModels.back()->mTransform.setTranslation(0.0f, 0.0f, -10.0f);
mModels.push_back(new Qtk::Model("bird", ":/models/bird/bird.obj"));
mModels.push_back(new Model("bird", ":/models/bird/bird.obj"));
mModels.back()->mTransform.setTranslation(2.0f, 2.0f, -10.0f);
// Sometimes the models are very large
mModels.back()->mTransform.scale(0.0025f);
mModels.back()->mTransform.rotate(-110.0f, 0.0f, 1.0f, 0.0f);
mModels.push_back(new Qtk::Model("lion", ":/models/lion/lion.obj"));
mModels.push_back(new Model("lion", ":/models/lion/lion.obj"));
mModels.back()->mTransform.setTranslation(-3.0f, -1.0f, -10.0f);
mModels.back()->mTransform.scale(0.15f);
mModels.push_back(new Qtk::Model("alien", ":/models/alien-hominid/alien.obj"));
mModels.push_back(new Model("alien", ":/models/alien-hominid/alien.obj"));
mModels.back()->mTransform.setTranslation(2.0f, -1.0f, -5.0f);
mModels.back()->mTransform.scale(0.15f);
mModels.push_back(new Qtk::Model("scythe", ":/models/scythe/scythe.obj"));
mModels.push_back(new Model("scythe", ":/models/scythe/scythe.obj"));
mModels.back()->mTransform.setTranslation(-6.0f, 0.0f, -10.0f);
mModels.back()->mTransform.rotate(-90.0f, 1.0f, 0.0f, 0.0f);
mModels.back()->mTransform.rotate(90.0f, 0.0f, 1.0f, 0.0f);
mModels.push_back(new Qtk::Model("masterChief", ":/models/spartan/spartan.obj"));
mModels.push_back(new Model("masterChief", ":/models/spartan/spartan.obj"));
mModels.back()->mTransform.setTranslation(-1.5f, 0.5f, -2.0f);
@ -185,7 +186,7 @@ void ExampleScene::init()
// Render an alien with specular
// Test alien Model with phong lighting and specular mapping
mMeshes.push_back(
new Qtk::MeshRenderer("alienTestLight", Triangle(Qtk::QTK_DRAW_ELEMENTS)));
new MeshRenderer("alienTestLight", Triangle(QTK_DRAW_ELEMENTS)));
mMeshes.back()->mTransform.setTranslation(4.0f, 1.5f, 10.0f);
mMeshes.back()->mTransform.scale(0.25f);
// This function changes values we have allocated in a buffer, so init() after
@ -193,7 +194,7 @@ void ExampleScene::init()
mMeshes.back()->init();
mModels.push_back(
new Qtk::Model("alienTest", ":/models/alien-hominid/alien.obj",
new Model("alienTest", ":/models/alien-hominid/alien.obj",
":/model-specular.vert", ":/model-specular.frag")
);
mModels.back()->mTransform.setTranslation(3.0f, -1.0f, 10.0f);
@ -213,7 +214,7 @@ void ExampleScene::init()
// Test spartan Model with phong lighting, specular and normal mapping
mMeshes.push_back(
new Qtk::MeshRenderer("spartanTestLight", Triangle(QTK_DRAW_ELEMENTS))
new MeshRenderer("spartanTestLight", Triangle(QTK_DRAW_ELEMENTS))
);
mMeshes.back()->mTransform.setTranslation(1.0f, 1.5f, 10.0f);
mMeshes.back()->mTransform.scale(0.25f);
@ -222,7 +223,7 @@ void ExampleScene::init()
mMeshes.back()->init();
mModels.push_back(
new Qtk::Model("spartanTest", ":/models/spartan/spartan.obj",
new Model("spartanTest", ":/models/spartan/spartan.obj",
":/model-normals.vert", ":/model-normals.frag")
);
mModels.back()->mTransform.setTranslation(0.0f, -1.0f, 10.0f);
@ -241,7 +242,7 @@ void ExampleScene::init()
// Test basic cube with phong.vert and phong.frag shaders
mMeshes.push_back(
new Qtk::MeshRenderer("testLight", Triangle(QTK_DRAW_ELEMENTS)));
new MeshRenderer("testLight", Triangle(QTK_DRAW_ELEMENTS)));
mMeshes.back()->mTransform.setTranslation(5.0f, 1.25f, 10.0f);
mMeshes.back()->mTransform.scale(0.25f);
mMeshes.back()->setDrawType(GL_LINE_LOOP);
@ -250,7 +251,7 @@ void ExampleScene::init()
mMeshes.back()->init();
mMeshes.push_back(
new Qtk::MeshRenderer("testPhong", Cube(QTK_DRAW_ARRAYS)));
new MeshRenderer("testPhong", Cube(QTK_DRAW_ARRAYS)));
mMeshes.back()->mTransform.setTranslation(5.0f, 0.0f, 10.0f);
mMeshes.back()->setShaders(":/phong.vert", ":/phong.frag");
mMeshes.back()->setColor(QVector3D(0.0f, 0.25f, 0.0f));
@ -290,25 +291,25 @@ void ExampleScene::init()
// Create simple shapes using MeshRenderer class and data in mesh.h
mMeshes.push_back(
new Qtk::MeshRenderer("rightTriangle", Triangle(QTK_DRAW_ELEMENTS)));
new MeshRenderer("rightTriangle", Triangle(QTK_DRAW_ELEMENTS)));
mMeshes.back()->mTransform.setTranslation(-5.0f, 0.0f, -2.0f);
mMeshes.push_back(
new Qtk::MeshRenderer("centerCube", Cube(QTK_DRAW_ELEMENTS)));
new MeshRenderer("centerCube", Cube(QTK_DRAW_ELEMENTS)));
mMeshes.back()->mTransform.setTranslation(-7.0f, 0.0f, -2.0f);
mMeshes.push_back(
new Qtk::MeshRenderer("leftTriangle", Triangle(QTK_DRAW_ELEMENTS)));
new MeshRenderer("leftTriangle", Triangle(QTK_DRAW_ELEMENTS)));
mMeshes.back()->mTransform.setTranslation(-9.0f, 0.0f, -2.0f);
mMeshes.back()->setDrawType(GL_LINE_LOOP);
mMeshes.push_back(
new Qtk::MeshRenderer("topTriangle", Triangle(QTK_DRAW_ELEMENTS)));
new MeshRenderer("topTriangle", Triangle(QTK_DRAW_ELEMENTS)));
mMeshes.back()->mTransform.setTranslation(-7.0f, 2.0f, -2.0f);
mMeshes.back()->mTransform.scale(0.25f);
mMeshes.push_back(
new Qtk::MeshRenderer("bottomTriangle", Triangle(QTK_DRAW_ELEMENTS)));
new MeshRenderer("bottomTriangle", Triangle(QTK_DRAW_ELEMENTS)));
mMeshes.back()->mTransform.setTranslation(-7.0f, -2.0f, -2.0f);
mMeshes.back()->mTransform.scale(0.25f);
mMeshes.back()->setDrawType(GL_LINE_LOOP);
@ -321,7 +322,7 @@ void ExampleScene::init()
// RGB Normals cube to show normals are correct with QTK_DRAW_ARRAYS
mMeshes.push_back(
new Qtk::MeshRenderer("rgbNormalsCubeArraysTest", Cube(QTK_DRAW_ARRAYS)));
new MeshRenderer("rgbNormalsCubeArraysTest", Cube(QTK_DRAW_ARRAYS)));
mMeshes.back()->mTransform.setTranslation(5.0f, 0.0f, 4.0f);
mMeshes.back()->setShaders(":/rgb-normals.vert", ":/rgb-normals.frag");
mMeshes.back()->init();
@ -343,7 +344,7 @@ void ExampleScene::init()
// RGB Normals cube to show normals are correct with QTK_DRAW_ELEMENTS_NORMALS
mMeshes.push_back(
new Qtk::MeshRenderer("rgbNormalsCubeElementsTest", Cube(QTK_DRAW_ELEMENTS_NORMALS)));
new MeshRenderer("rgbNormalsCubeElementsTest", Cube(QTK_DRAW_ELEMENTS_NORMALS)));
mMeshes.back()->mTransform.setTranslation(5.0f, 0.0f, 2.0f);
mMeshes.back()->setShaders(":/rgb-normals.vert", ":/rgb-normals.frag");
mMeshes.back()->init();
@ -368,7 +369,7 @@ void ExampleScene::init()
// + UVs required duplicating element position data from QTK_DRAW_ELEMENTS
// + This is because the same position must use different UV coordinates
mMeshes.push_back(
new Qtk::MeshRenderer("uvCubeArraysTest", Cube(QTK_DRAW_ARRAYS)));
new MeshRenderer("uvCubeArraysTest", Cube(QTK_DRAW_ARRAYS)));
mMeshes.back()->mTransform.setTranslation(-3.0f, 0.0f, -2.0f);
mMeshes.back()->setShaders(":/texture2d.vert", ":/texture2d.frag");
mMeshes.back()->init();
@ -396,7 +397,7 @@ void ExampleScene::init()
// Test drawing a cube with texture coordinates using glDrawElements
mMeshes.push_back(
new Qtk::MeshRenderer("uvCubeElementsTest", Cube(QTK_DRAW_ELEMENTS_NORMALS)));
new MeshRenderer("uvCubeElementsTest", Cube(QTK_DRAW_ELEMENTS_NORMALS)));
mMeshes.back()->mTransform.setTranslation(-1.7f, 0.0f, -2.0f);
mMeshes.back()->setShaders(":/texture2d.vert", ":/texture2d.frag");
mMeshes.back()->init();
@ -422,7 +423,7 @@ void ExampleScene::init()
// Texturing a cube using a cube map
// + Cube map texturing works with both QTK_DRAW_ARRAYS and QTK_DRAW_ELEMENTS
mMeshes.push_back(
new Qtk::MeshRenderer("testCubeMap", Cube(QTK_DRAW_ELEMENTS)));
new MeshRenderer("testCubeMap", Cube(QTK_DRAW_ELEMENTS)));
mMeshes.back()->mTransform.setTranslation(-3.0f, 1.0f, -2.0f);
mMeshes.back()->mTransform.setRotation(45.0f, 0.0f, 1.0f, 0.0f);
mMeshes.back()->setShaders(":/texture-cubemap.vert", ":/texture-cubemap.frag");
@ -449,7 +450,7 @@ void ExampleScene::init()
// Create a cube with custom shaders
// + Apply RGB normals shader and spin the cube for a neat effect
mMeshes.push_back(
new Qtk::MeshRenderer("rgbNormalsCube", Cube(QTK_DRAW_ARRAYS)));
new MeshRenderer("rgbNormalsCube", Cube(QTK_DRAW_ARRAYS)));
mMeshes.back()->mTransform.setTranslation(5.0f, 2.0f, -2.0f);
mMeshes.back()->setShaders(":/rgb-normals.vert", ":/rgb-normals.frag");
mMeshes.back()->init();
@ -471,7 +472,7 @@ void ExampleScene::init()
// RGB Normals triangle to show normals are correct with QTK_DRAW_ARRAYS
mMeshes.push_back(
new Qtk::MeshRenderer("rgbTriangleArraysTest", Triangle(QTK_DRAW_ARRAYS)));
new MeshRenderer("rgbTriangleArraysTest", Triangle(QTK_DRAW_ARRAYS)));
mMeshes.back()->mTransform.setTranslation(7.0f, 0.0f, 2.0f);
mMeshes.back()->setShaders(":/rgb-normals.vert", ":/rgb-normals.frag");
mMeshes.back()->init();
@ -492,7 +493,7 @@ void ExampleScene::init()
// RGB Normals triangle to show normals are correct with QTK_DRAW_ELEMENTS
mMeshes.push_back(
new Qtk::MeshRenderer("rgbTriangleElementsTest",
new MeshRenderer("rgbTriangleElementsTest",
Triangle(QTK_DRAW_ELEMENTS_NORMALS)));
mMeshes.back()->mTransform.setTranslation(7.0f, 0.0f, 4.0f);
mMeshes.back()->setShaders(":/rgb-normals.vert", ":/rgb-normals.frag");
@ -514,7 +515,7 @@ void ExampleScene::init()
// Test drawing triangle with glDrawArrays with texture coordinates
mMeshes.push_back(
new Qtk::MeshRenderer("testTriangleArraysUV", Triangle(QTK_DRAW_ARRAYS)));
new MeshRenderer("testTriangleArraysUV", Triangle(QTK_DRAW_ARRAYS)));
mMeshes.back()->mTransform.setTranslation(-3.0f, 2.0f, -2.0f);
mMeshes.back()->setShaders(":/texture2d.vert", ":/texture2d.frag");
mMeshes.back()->init();
@ -542,7 +543,7 @@ void ExampleScene::init()
// Test drawing triangle with glDrawElements with texture coordinates
mMeshes.push_back(
new Qtk::MeshRenderer("testTriangleElementsUV",
new MeshRenderer("testTriangleElementsUV",
Triangle(QTK_DRAW_ELEMENTS_NORMALS)));
mMeshes.back()->mTransform.setTranslation(-2.5f, 0.0f, -1.0f);
mMeshes.back()->setShaders(":/texture2d.vert", ":/texture2d.frag");
@ -574,7 +575,7 @@ void ExampleScene::init()
// Example of a cube with no lighting applied
mMeshes.push_back(
new Qtk::MeshRenderer("noLight", Cube(QTK_DRAW_ELEMENTS)));
new MeshRenderer("noLight", Cube(QTK_DRAW_ELEMENTS)));
mMeshes.back()->mTransform.setTranslation(5.0f, 0.0f, -2.0f);
mMeshes.back()->setShaders(":/solid-perspective.vert",
":/solid-perspective.frag");
@ -585,24 +586,28 @@ void ExampleScene::init()
// Create objects that represent light sources for lighting examples
mMeshes.push_back(
new Qtk::MeshRenderer("phongLight", Triangle(QTK_DRAW_ELEMENTS)));
new MeshRenderer("phongLight", Triangle(QTK_DRAW_ELEMENTS)));
mMeshes.back()->mTransform.setTranslation(3.0f, 2.0f, -2.0f);
mMeshes.back()->mTransform.scale(0.25f);
mMeshes.push_back(
new Qtk::MeshRenderer("diffuseLight", Triangle(QTK_DRAW_ELEMENTS)));
new MeshRenderer("diffuseLight", Triangle(QTK_DRAW_ELEMENTS)));
mMeshes.back()->mTransform.setTranslation(9.0f, 2.0f, -2.0f);
mMeshes.back()->mTransform.scale(0.25f);
mMeshes.push_back(
new Qtk::MeshRenderer("specularLight", Triangle(QTK_DRAW_ELEMENTS)));
new MeshRenderer("specularLight", Triangle(QTK_DRAW_ELEMENTS)));
mMeshes.back()->mTransform.setTranslation(11.0f, 2.0f, -2.0f);
mMeshes.back()->mTransform.scale(0.25f);
}
void ExampleScene::draw()
void Scene::draw()
{
Scene::draw();
mSkybox.draw();
for (auto & model : mModels) model->draw();
for (const auto &mesh : mMeshes) mesh->draw();
mTestPhong->mProgram.bind();
mTestPhong->setUniform("uModelInverseTransposed",
@ -611,13 +616,13 @@ void ExampleScene::draw()
"uLightPosition",
MeshRenderer::getInstance("phongLight")->mTransform.translation());
mTestPhong->setUniform("uCameraPosition",
ExampleScene::Camera().transform().translation());
Scene::Camera().transform().translation());
mTestPhong->mProgram.release();
mTestPhong->draw();
mTestAmbient->mProgram.bind();
mTestAmbient->setUniform("uCameraPosition",
ExampleScene::Camera().transform().translation());
Scene::Camera().transform().translation());
mTestAmbient->mProgram.release();
mTestAmbient->draw();
@ -627,7 +632,7 @@ void ExampleScene::draw()
mTestDiffuse->setUniform(
"uLightPosition",
MeshRenderer::getInstance("diffuseLight")->mTransform.translation());
mTestDiffuse->setUniform("uCameraPosition", ExampleScene::Camera().transform().translation());
mTestDiffuse->setUniform("uCameraPosition", Scene::Camera().transform().translation());
mTestDiffuse->mProgram.release();
mTestDiffuse->draw();
@ -638,43 +643,43 @@ void ExampleScene::draw()
mTestSpecular->setUniform(
"uLightPosition",
MeshRenderer::getInstance("specularLight")->mTransform.translation());
mTestSpecular->setUniform("uCameraPosition", ExampleScene::Camera().transform().translation());
mTestSpecular->setUniform("uCameraPosition", Scene::Camera().transform().translation());
mTestSpecular->mProgram.release();
mTestSpecular->draw();
}
void ExampleScene::update()
void Scene::update()
{
auto position = MeshRenderer::getInstance("alienTestLight")->mTransform.translation();
Model::getInstance("alienTest")->setUniform(
"uLight.position", position);
Model::getInstance("alienTest")->setUniform(
"uCameraPosition", ExampleScene::Camera().transform().translation());
"uCameraPosition", Scene::Camera().transform().translation());
auto posMatrix = Model::getInstance("alienTest")->mTransform.toMatrix();
Model::getInstance("alienTest")->setUniform(
"uMVP.normalMatrix", posMatrix.normalMatrix());
Model::getInstance("alienTest")->setUniform(
"uMVP.model", posMatrix);
Model::getInstance("alienTest")->setUniform(
"uMVP.view", ExampleScene::Camera().toMatrix());
"uMVP.view", Scene::Camera().toMatrix());
Model::getInstance("alienTest")->setUniform(
"uMVP.projection", ExampleScene::Projection());
"uMVP.projection", Scene::Projection());
Model::getInstance("alienTest")->mTransform.rotate(0.75f, 0.0f, 1.0f, 0.0f);
position = MeshRenderer::getInstance("spartanTestLight")->mTransform.translation();
Model::getInstance("spartanTest")->setUniform(
"uLight.position", position);
Model::getInstance("spartanTest")->setUniform(
"uCameraPosition", ExampleScene::Camera().transform().translation());
"uCameraPosition", Scene::Camera().transform().translation());
posMatrix = Model::getInstance("spartanTest")->mTransform.toMatrix();
Model::getInstance("spartanTest")->setUniform(
"uMVP.normalMatrix", posMatrix.normalMatrix());
Model::getInstance("spartanTest")->setUniform(
"uMVP.model", posMatrix);
Model::getInstance("spartanTest")->setUniform(
"uMVP.view", ExampleScene::Camera().toMatrix());
"uMVP.view", Scene::Camera().toMatrix());
Model::getInstance("spartanTest")->setUniform(
"uMVP.projection", ExampleScene::Projection());
"uMVP.projection", Scene::Projection());
Model::getInstance("spartanTest")->mTransform.rotate(0.75f, 0.0f, 1.0f, 0.0f);
@ -686,16 +691,16 @@ void ExampleScene::update()
MeshRenderer::getInstance("testPhong")->setUniform(
"uLight.position", position);
MeshRenderer::getInstance("testPhong")->setUniform(
"uCameraPosition", ExampleScene::Camera().transform().translation());
"uCameraPosition", Scene::Camera().transform().translation());
posMatrix = MeshRenderer::getInstance("testPhong")->mTransform.toMatrix();
MeshRenderer::getInstance("testPhong")->setUniform(
"uMVP.normalMatrix", posMatrix.normalMatrix());
MeshRenderer::getInstance("testPhong")->setUniform(
"uMVP.model", posMatrix);
MeshRenderer::getInstance("testPhong")->setUniform(
"uMVP.view", ExampleScene::Camera().toMatrix());
"uMVP.view", Scene::Camera().toMatrix());
MeshRenderer::getInstance("testPhong")->setUniform(
"uMVP.projection", ExampleScene::Projection());
"uMVP.projection", Scene::Projection());
MeshRenderer::getInstance("testPhong")->mProgram.release();
// Rotate lighting example cubes

37
app/examplescene.h → src/scene.h
View File

@ -6,31 +6,40 @@
## Contact: shaunrd0@gmail.com | URL: www.shaunreed.com | GitHub: shaunrd0 ##
##############################################################################*/
#ifndef QTK_EXAMPLE_SCENE_H
#define QTK_EXAMPLE_SCENE_H
#ifndef QTK_SCENE_H
#define QTK_SCENE_H
#include <abstractscene.h>
#include <camera3d.h>
#include <skybox.h>
#include <QMatrix4x4>
class MeshRenderer;
class Model;
class ExampleScene : public Qtk::Scene {
class Scene {
public:
ExampleScene();
~ExampleScene();
Scene();
~Scene();
virtual void init();
virtual void draw() override;
virtual void update();
void init();
void draw();
void update();
static Camera3D & Camera() { return mCamera;}
static QMatrix4x4 View() { return mCamera.toMatrix();}
static QMatrix4x4 & Projection() { return mProjection;}
private:
static Camera3D mCamera;
static QMatrix4x4 mProjection;
Qtk::MeshRenderer * mTestPhong;
Qtk::MeshRenderer * mTestSpecular;
Qtk::MeshRenderer * mTestDiffuse;
Qtk::MeshRenderer * mTestAmbient;
Skybox mSkybox;
MeshRenderer * mTestPhong;
MeshRenderer * mTestSpecular;
MeshRenderer * mTestDiffuse;
MeshRenderer * mTestAmbient;
std::vector<MeshRenderer *> mMeshes;
std::vector<Model *> mModels;
};
#endif // QTK_EXAMPLE_SCENE_H
#endif // QTK_SCENE_H

26
src/skybox.cpp
View File

@ -6,25 +6,23 @@
## Contact: shaunrd0@gmail.com | URL: www.shaunreed.com | GitHub: shaunrd0 ##
##############################################################################*/
#include <abstractscene.h>
#include <skybox.h>
#include <scene.h>
#include <texture.h>
using namespace Qtk;
#include <skybox.h>
Skybox::Skybox(std::string right, std::string top, std::string front,
std::string left, std::string bottom, std::string back,
const std::string & name)
: mVBO(QOpenGLBuffer::VertexBuffer),
mVertices(Cube(QTK_DRAW_ELEMENTS).vertices()),
mIndices(Cube(QTK_DRAW_ELEMENTS).indices())
{
init();
mCubeMap = Texture::initCubeMap(
: mCubeMap(Texture::initCubeMap(
QImage(right.c_str()).mirrored(), QImage(top.c_str()),
QImage(front.c_str()), QImage(left.c_str()),
QImage(bottom.c_str()), QImage(back.c_str()));
}
QImage(bottom.c_str()), QImage(back.c_str()))),
mVBO(QOpenGLBuffer::VertexBuffer),
mVertices(Cube(QTK_DRAW_ELEMENTS).vertices()),
mIndices(Cube(QTK_DRAW_ELEMENTS).indices())
{ init();}
Skybox::Skybox(std::string name)
: Skybox(":/right.png", ":/top.png", ":/front.png",
@ -89,11 +87,13 @@ void Skybox::init()
mVBO.setUsagePattern(QOpenGLBuffer::StaticDraw);
mVBO.bind();
// Allocate vertex positions into VBO
mVBO.allocate(mVertices.data(), mVertices.size() * sizeof(mVertices[0]));
mVBO.allocate(mVertices.data(),
mVertices.size() * sizeof(mVertices[0]));
// Enable attribute array for vertex positions
mProgram.enableAttributeArray(0);
mProgram.setAttributeBuffer(0, GL_FLOAT, 0, 3, sizeof(QVector3D));
mProgram.setAttributeBuffer(0, GL_FLOAT, 0,
3, sizeof(QVector3D));
// Set shader texture unit to 0
mProgram.setUniformValue("uTexture", 0);

13
src/skybox.h
View File

@ -10,19 +10,17 @@
#include <QImage>
#include <QOpenGLBuffer>
#include <QOpenGLFunctions>
#include <QOpenGLShaderProgram>
#include <QOpenGLTexture>
#include <QOpenGLVertexArrayObject>
#include <QOpenGLFunctions>
#include <camera3d.h>
#include <mesh.h>
#include <qtkapi.h>
namespace Qtk {
class QTKAPI Skybox : protected QOpenGLFunctions {
public:
class Skybox : protected QOpenGLFunctions {
public:
// Delegate this constructor to use default skybox images
// + This allows creating a skybox with no arguments ( auto s = new Skybox; )
explicit Skybox(std::string name="Skybox");
@ -35,7 +33,7 @@ namespace Qtk {
void draw();
private:
private:
void init();
Vertices mVertices;
@ -45,7 +43,6 @@ namespace Qtk {
QOpenGLVertexArrayObject mVAO;
QOpenGLBuffer mVBO;
QOpenGLTexture * mCubeMap;
};
}
};
#endif // QTK_SKYBOX_H

1
src/texture.cpp
View File

@ -11,7 +11,6 @@
#include <texture.h>
using namespace Qtk;
QImage * Texture::initImage(const char * image, bool flipX, bool flipY)
{

11
src/texture.h
View File

@ -11,11 +11,9 @@
#include <QOpenGLTexture>
#include <qtkapi.h>
namespace Qtk {
class QTKAPI Texture {
public:
class Texture {
public:
~Texture() {}
// QImage
@ -36,10 +34,9 @@ namespace Qtk {
const char * front, const char * left,
const char * bottom, const char * back);
private:
private:
// Private ctor to prevent creating instances of this class
Texture() {}
};
}
};
#endif // QTOPENGL_TEXTURE_H

21
src/transform3D.cpp
View File

@ -9,7 +9,6 @@
#include <transform3D.h>
using namespace Qtk;
const QVector3D Transform3D::LocalForward(0.0f, 0.0f, 1.0f);
const QVector3D Transform3D::LocalUp(0.0f, 1.0f, 0.0f);
@ -111,10 +110,8 @@ QVector3D Transform3D::right() const
* QT Streams
******************************************************************************/
namespace Qtk {
#ifndef QT_NO_DEBUG_STREAM
QDebug operator<<(QDebug dbg, const Transform3D & transform)
{
QDebug operator<<(QDebug dbg, const Transform3D & transform)
{
dbg << "Transform3D\n{\n";
dbg << "Position: <" << transform.translation().x() << ", "
<< transform.translation().y() << ", "
@ -128,24 +125,20 @@ namespace Qtk {
transform.rotation().scalar() << ">\n}";
return dbg;
}
#endif
#ifndef QT_NO_DATASTREAM
QDataStream & operator<<(QDataStream & out, const Transform3D & transform)
{
QDataStream & operator<<(QDataStream & out, const Transform3D & transform)
{
out << transform.mTranslation;
out << transform.mScale;
out << transform.mRotation;
return out;
}
}
QDataStream & operator>>(QDataStream & in, Transform3D & transform)
{
QDataStream & operator>>(QDataStream & in, Transform3D & transform)
{
in >> transform.mTranslation;
in >> transform.mScale;
in >> transform.mRotation;
transform.m_dirty = true;
return in;
}
#endif
}

28
src/transform3D.h
View File

@ -10,20 +10,15 @@
#ifndef QTK_TRANSFORM3D_H
#define QTK_TRANSFORM3D_H
#include <QDebug>
#include <QMatrix4x4>
#include <QQuaternion>
#include <QVector3D>
#ifndef QT_NO_DEBUG_STREAM
#include <QDebug>
#endif
#include <qtkapi.h>
namespace Qtk {
class QTKAPI Transform3D
{
public:
class Transform3D
{
public:
// Constructors
inline Transform3D() : m_dirty(true),
mScale(1.0f, 1.0f, 1.0f),
@ -93,7 +88,7 @@ namespace Qtk {
static const QVector3D LocalForward, LocalUp, LocalRight;
private:
private:
QVector3D mTranslation;
QQuaternion mRotation;
QVector3D mScale;
@ -101,25 +96,22 @@ namespace Qtk {
bool m_dirty;
#ifndef QT_NO_DATASTREAM
friend QDataStream &operator<<(QDataStream & out, const Transform3D & transform);
friend QDataStream &operator>>(QDataStream & in, Transform3D & transform);
#endif
};
};
Q_DECLARE_TYPEINFO(Transform3D, Q_MOVABLE_TYPE);
// Qt Streams
#ifndef QT_NO_DEBUG_STREAM
QDebug operator<<(QDebug dbg, const Transform3D & transform);
QDebug operator<<(QDebug dbg, const Transform3D & transform);
#endif
#ifndef QT_NO_DATASTREAM
QDataStream &operator<<(QDataStream & out, const Transform3D & transform);
QDataStream &operator>>(QDataStream & in, Transform3D & transform);
QDataStream &operator<<(QDataStream & out, const Transform3D & transform);
QDataStream &operator>>(QDataStream & in, Transform3D & transform);
#endif
}
Q_DECLARE_TYPEINFO(Qtk::Transform3D, Q_MOVABLE_TYPE);
#endif // QTK_TRANSFORM3D_H