Planar reflections for URP

Techniques / Implementation

It uses a Render Texture. So the scene need to be rendered twice, performance depends on the complexity of the scene, render texture size and camera configuration (mostly post-rendering).

Near clip of the reflection camera is adjusted to the plane position (oblique projection) so anything behind the plane could be rendered.

Culling mask of the camera can be used if you need to remove something from the reflection.

Orthogonal and Perspective camera are supported.

URP support.

HDRP support, but It's not our purpose to replace unity built in.

Auto mode, so you don't need to worry about anything (just 3 things in the inspector) or manually, so you can tweak performance as much as you need.

Package includes

• 3 base subgraphs

• 7 shaders (Opaque/Transparent)

  • Reflection:

    Reflection, Opaque.

  • TransparentReflection:

    Reflection with alpha.

  • ReflectionWithTexture:

    Blend an Albedo texture and the reflection by a factor.

  • TransparentReflection

    Blend an Albedo texture and the reflection by a factor with alpha.

  • ReflectionWithDistortion

    Reflection with distortion using a normal map, Opaque

  • TransparentReflectionWithDistortion

    Reflection with distortion using a normal map with alpha.

  • Rain

    Beautiful animated rain shader :)

• Documentation

Future plans:

If you are interested in any of the following features or another, please contact us so we could think about it.

Recursive mirrors

There is a basic / buggy implementation already in the asset but it's still
a work in progress.

Backport to Unity 2019?