Free Unity 2021.2 Project: GPU Instanced Grass Rendering Techniques (Acerola)

Overview

Acerola (Garrett Gunnell) shares an exploration of grass rendering techniques as a Unity project. Features include GPU instancing, GPU frustum culling, chunked grass position buffers to cover any area, level of detail for distant chunks and a scrolling noise texture to simulate wind.

There are shaders for quad grass and for individual 3D model grass blades, plus a geometry shader grass version, with compute shaders for culling and placement. The README asks people to reference the code rather than use it directly, and the project is free under the MIT license.