Caliber

Caliber is a lightweight, performance-focused 3D graphics framework written in modern C++20. It serves as a testbed for Physically Based Rendering (PBR), procedural animation, and custom game engine architecture.

Stack

• Core Language: C++20 (Utilizing modern features, move semantics, and aggregate initialization)
• Graphics API: OpenGL 4.6 (Core Profile)
• Extension Loader: GLAD (Dynamically loads modern OpenGL functions)
• Window & Input: GLFW 3 (Handles cross-platform window creation, mouse delta capture, and keyboard state)
• Mathematics: GLM (OpenGL Mathematics for matrix transformations, quaternions, and vector calculus)
• Asset Pipeline: Assimp (Open Asset Import Library for parsing complex .gltf hierarchies and materials)
• GUI / Tooling: Dear ImGui (Immediate-mode GUI for real-time debugging of PBR materials and lighting states)
• Build System: CMake (Standardized, cross-platform build generation)

Core Features

• Physically Based Rendering (PBR): Full metallic/roughness workflow with HDR lighting support.
• Complex Model Loading: Integrates Assimp to parse glTF nodes, meshes, and hierarchical transformations.
• Procedural Animation System: Mathematical, frame-independent animation controller handling weapon recoil, slide mechanics, and magazine drops.
• FPS Viewmodel Physics: Features a spring-based viewmodel sway system that reacts to mouse delta for heavy, realistic weapon handling.
• Dynamic Lighting: Real-time muzzle flashes tied directly to the weapon's local coordinate space.
• ImGui Integration: Real-time debugging and parameter tuning for materials, transforms, and lights.

Build Instructions (CMake)

Caliber uses a standard CMake build system.

# Clone the repository
git clone https://github.com/Virus2466/caliber.git
cd caliber

mkdir build
cd build
cmake ..
cmake --build .

Gallery