Billboards and Impostors
Billboards and impostors are textured camera-facing quads. Billboards typically hold a simple static texture, while impostors use more complex (often dynamic) texturing to fake a 3D appearance. They allow adding a large number of simple models to any scene without rendering many polygons.
- Six Grass Rendering Techniques in Unity (2022)
This article surveyed 6 different ways to render grass in Unity: static mesh, geometry + tessellation, procedural rendering + compute, billboarding, unity terrains, and impostors.
