Bug : WaterVolume/River Component materil realtime reflection failure

Github Issue:

https://github.com/aws/lumberyard/issues/412

Describe the bug

WaterVolume/River Component materil realtime reflection failure(from 1.16)

Steps to reproduce

  1. create new level, add some building or vegetation around
    2.create new entity with WaterVolume/River component.
    3.create new material, select WaterVolume Shader
    4.enable Realtime Reflection in material editor shader generation params
    5.assign material to WaterVolume/River component.
    Expected behavior
    WaterVolume Component materil realtime reflection like version 1.15

Screenshots/Logs:
enable Realtime Reflection property:
1
WaterVolume Component materil realtime reflection in lumberyard version 1.19:
2
WaterVolume Component materil realtime reflection in lumberyard version 1.15:
3

Lumberyard version
v1.19.0.0 - Build 918128