Canavar Graphics Engine

A basic graphics engine written with C++ using OpenGL API. I use Qt 6 for window and event management. All 3D math operation is done by Qt 6's math module. The engine has following features:

• Supports loading several 3D model formats thanks to assimp library
• Parent - child node hiearchy
• Transformation of individual meshes of models
• Particle generator
• Terrain, sky, sun, volumetric clouds, water, haze
• Dummy and free cameras
• Directional, point and spot lights
• Easy shader loading and linking
• Framebuffer generation with several attachments and different formats

I will add following features:

• Editor
• WGS84 support
• Terrain generation using DTED
• Albedo generation using satellite images
• Post processing effects

Screenshot

Build

1. Install CMake 3.25.1.
2. Install Visual Studio 2019 and MSVC C++ Compiler.
3. Install Qt 6.4.1 MSVC2019 64bit kit.
4. Clone the repo git clone https://github.com/berkbavas/CanavarGraphicsEngine.git.
5. Create a folder mkdir Build.
6. Enter the folder cd Build.
7. Run CMake cmake ...
8. Open Canavar.sln with Visual Studio 2019.
9. Build & Run with Release config.

Usage

Creating a model can be done with one liner:

Node *aircraft = NodeManager::Instance()->CreateModel("f16c");

NodeManager class automatically register this model to render list. You do not have to do anything else. Ownership belongs to NodeManager. You can remove any node with one liner again.

NodeManager::Instance()->RemoveNode(aircraft);

It is NodeManager's responsibility to the clean up the resources.

Attaching a camera to a node is also easy:

Camera *camera = NodeManager::Instance()->Create(Node::NodeType::DummyCamera);
aircraft->AddChild(camera);

You can set local position of camera:

camera->SetPosition(QVector3D(0, 0, 10));

Now you can set camera as the active camera:

CameraManager::Instance()->SetActiveCamera(camera);

Acknowledgements

I thank Federico Vaccaro for his amazing shaders and Joey de Vries for his OpenGL tutorials.