Blackhole Effect Shader

Read a tutorial on this at: https://medium.com/@mariosubspace/blackhole-shader-in-unity-eb7d93af9577

Content

Blackhole_URP_Unity-6

Updated project and shader for URP using Unity 6.

• Handwritten shader has copious comments to describe what's going on.
• The new URP _CameraOpaqueTexture texture does not include other transparent objects, so multiple blackholes do not blend with each other like they did before.
• Added a Global Strength parameter to control the overall effect.
• Added screen-based derivative anti-aliasing to the hole edge.
• If you copy the shader into your project, your URP Pipeline Asset must have Opaque Texture enabled.
• Look under Assets/MAG/Blackhole Effect

Blackhole_Unity-2017

Legacy shader using Built-in pipeline.

• Old version used Shader Forge and is not very readable. Shader Forge is also no longer available.
• Should still work if you are using the Legacy Built-In Pipeline.
• Look under Assets/MAG/Blackhole Effect
• Probably ignore "Gradient Smoothing", I am not sure I had finished that one.