AAAA Render Pipeline (Unity SRP)

🚧 An experimental Unity render pipeline.

The main goals of the project are:

• GPU Driven pipeline.
• Modern high fidelity rendering techniques.
• Minimal reliance on temporal algorithms.
• Pushing technical constraints of Unity.

Unity and Graphics API Versions

🔨 Developed with Unity 6000.0.26f1.

❎ Only Windows/DirectX 12 configuration is supported at the moment.

Rendering Techniques

• GPU Driven pipeline
  • Hierarchical meshlet LODs
  • Frustum, Cone, and Occlusion Culling (Two-Pass)
• Visibility Buffer + GBuffer
• PBR lighting
  • Cook-Torrance BRDF
  • Image-Based Lighting
    • Irradiance and Pre-Filtered Environment maps generated from an HDR cubemap
• Cascaded Shadow Mapping
• PCF 5x5 Soft Shadows
• Clustered Lighting
• XeGTAO
  • Bent Normals
  • "Micro Shadowing": directional light contact shadow approximation
• HiZ SSR
• SMAA
• FSR 1.0
• ACES/Neutral Tonemapping

API Features

• ShaderModel 6.6 bindless resources (right here in Unity!)
• In-Editor PIX for Windows integration

Project Structure

• Packages/com.deltation.aaaa-rp: Unity SRP package.
• DELTationBindlessPlugin: native Unity plugin providing support for bindless and PIX integration.

External Dependencies

• zeux/meshoptimizer: mesh simplification and meshlet generation.
• KarypisLab/METIS: graph partitioning.
• TsudaKageyu/minhook: WinAPI hooking library.