UnityURP-MobileScreenSpacePlanarReflection

UnityURP-MobileScreenSpacePlanarReflection

A simple and fast ScreenSpacePlanarReflection(SSPR) as a standalone reusable RendererFeature in URP.
Can run on PC/console/vulkan android, other platforms not tested but should work if compute shader is supported.

• See runtime video here: https://youtu.be/Cy46A8EyX4Q
• download pre-built .apk here: https://drive.google.com/file/d/14Z_Gjb1ADz8RhcBgAFpa96dm-oQuOyQx/view?usp=sharing

SSPR ON

SSPR OFF

SSPR ON

SSPR OFF

On Adreno630 GPU android mobile device(almost all 2018/2019 flagship android mobiles), Toggle SSPR ON/OFF:

• cost https://zhuanlan.zhihu.com/p/150890059). Instead, we will use RenderTexture color format RFloat / ARGBHalf to produce similar result.

Editor

2020.3.33f1 LTS

Implementation reference

• http://remi-genin.fr/blog/screen-space-plane-indexed-reflection-in-ghost-recon-wildlands/
• http://advances.realtimerendering.com/s2017/PixelProjectedReflectionsAC_v_1.92_withNotes.pdf
• https://zhuanlan.zhihu.com/p/150890059
• https://github.com/Steven-Cannavan/URP_ScreenSpacePlanarReflections
• UE4 source - PostProcessPixelProjectedReflectionMobile.usf (UE4 4.26)

Change log

• 2020-08-23: add iOS/OSX support (with the help of MusouCrow)
• 2022-05-02: upgrade project to Unity2020.3.33f1, merged a bug fix in MobileSSPRComputeShader.compute