Why are Screen Space Reflections Unique?

Guide To Beautiful Games In Unity

Screen Space Reflection

Screen space reflection (SSR) is a technique where image data of the rendered scene is reused to calculate reflections. It is commonly used to create more subtle reflections such as on wet floor surfaces or in puddles.

How to setup SSR?

First of all, add Reflection probe from Add(Right-click) > Light >Reflection Probe and then size it to match the size of the scene

Then set the Type to Realtime and check the Use influence volume

Then open the HDRP Asset and check the Screen Space reflection and Compress Reflection probe cache.

Now add Screen Space Reflection inside your global volume.

If you get the does not support error while adding the Screen space reflection override then go to project settings and check all the Screen space reflection of all HDRP quality.

Now setup your Screen space reflection settings in your global volume.

And this is the final result.

The reason for its uniqueness is that it gives a lifelike and accurate reflections in different qualities even if it is hardware intensive unlike reflection probe which tries to give accurate reflection.

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