Entropy Engine: Vulkan PBR Renderer

A physically-based rendering (PBR) engine built in C++ using Vulkan, featuring a custom graphics pipeline framework, an entity-component-system (ECS) powered by entt, and an interactive ImGui-based UI for real-time scene manipulation.

This renderer implements PBR entirely through Vulkan shaders without ray tracing extensions.

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Features

• Physically-Based Rendering (PBR): Realistic material rendering using physically-based shading models in GLSL shaders.

• Custom Graphics Pipeline Framework: An extensible system to easily define, manage, and swap custom Vulkan graphics pipelines.

• Entity-Component System (ECS): Powered by entt to manage entities with components like:

  • TransformComponent
  • MeshComponent
  • MaterialComponent
  • CameraComponent
  • LightComponent

• Scene Editor UI: Built using ImGui and ImGuizmo for interactive object manipulation (translate, rotate, scale) and scene inspection.

• Scene Serialization: Save and load entire scenes in human-readable YAML format.

• Asset Loading: Load 3D models via Assimp and support for SPIR-V shader loading.

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Dependencies

• Vulkan SDK
• GLFW
• ImGui
• ImGuizmo
• glm
• spdlog
• entt
• yaml-cpp
• Assimp

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Working

• Entities are created and assigned components (Transform, Mesh, Material).

• The Renderer iterates over entities and submits draw calls based on their components.

• Graphics Pipelines are defined via an internal framework, enabling easy creation of multiple render passes and specialized pipelines.

• ImGui UI allows:

  • Viewing entity hierarchy and properties.
  • Manipulating transforms with ImGuizmo.
  • Adjusting material properties in real-time.

• Scenes can be saved/loaded to YAML, preserving the entity hierarchy and properties.

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Build Instructions

Requirements:

• Premake
• C++17
• Vulkan SDK

git clone https://github.com/sanjay004mk/entropy-engine.git
cd entropy-engine
premake5 vs2022

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Screenshots