WdsPjm / Culling-with-Mesh-Shaders

Research project on benefits of NVIDIA Task and Mesh Shaders

Culling with NVIDIA Mesh Shaders

This project studies the possibilites and challenges of NVIDIA Mesh Shaders. With custom meshlet based backface and frustum culling a comparison between Mesh Shader, Compute Shader and standard Vertex Shader is conducted to evaluate possible performance gains, pitfalls and obstacles.

A personal secondary purpose of the project was to implement a C++ framework from ground up using Entity Component System. The EnTT library was used for this.

The 3D Models are from the Stanford 3D Scanning Repository: http://graphics.stanford.edu/data/3Dscanrep/

Video Analysis

List of Dependendies

• Assimp (5.0.1)
• ImGui (1.74)
• EnTT (3.3.0)
• GLM (0.9.9.7)
• Glad (0.1.33)
• GLFW3 (3.3.2)

Points of Interest

• OpenGL Shader and Buffer Setup

  See different Test Scenes

• Meshlet, Bounding Sphere and Bounding Cone creation

  Meshlet Triangle Mesh Header

  Meshlet Triangle Mesh CPP

• Main Loop

  See Context::run()

• Shaders

  See Resources/Shaders/