Unity URP Fast Planet Atmospheres

Shaders, materials, and a prefab setup for planetary atmospheres in Unity (URP). Most atmosphere shaders use raymarching, but that can be performance intensive, so I used some math to (hopefully) make it more performant. I used URP version 14, but as long as your URP version supports Custom Function nodes, it should work.

Atmosphere radius, density, and colors can be customized.

The atmosphere transitions seemlessly from space to planetside.

Feel free to use this however you'd like :)

The skybox from the screenshots is available for FREE on the Unity Asset Store at Nebula Skyboxes | 2D Sky | Unity Asset Store