3Draster

3Draster is a cross-platform 3D rasterization engine and toolkit designed to enable real-time rendering of 3D scenes. It provides a modular pipeline that mirrors the classic graphics pipeline, from vertex processing and primitive assembly to rasterization, fragment shading, and framebuffer output. The project emphasizes clarity and extensibility, making it suitable for educational use, research, and lightweight game development.

It includes a scene graph, material and lighting models, and support for textures, shadows, and post-processing effects. The engine is designed to work with multiple graphics APIs through abstraction layers, typically including Vulkan, DirectX, and OpenGL-compatible backends. It supports shaders written in a shading language inspired by GLSL/HLSL and includes a small set of sample shaders. The renderer supports both forward and deferred shading paths, as well as tile-based rendering optimizations for memory efficiency on GPUs.

3Draster's architecture is modular, with separate modules for geometry processing, rasterization, and pixel shading, and with a plugin system for additional features such as custom post-processing or terrain rendering. It aims for good performance on mid-range hardware and provides profiling hooks.

The project is released under an open-source license and maintained by a community of developers. Documentation is hosted on its website and associated code repositories. It has been used in academic demonstrations and indie projects as a low-barrier entry point into real-time rendering.