Impact points

Damage FX Script Component

Modify the constant value of the Damage FX Script Component:

Assets/FORGE3D/DamageFX/Scripts/DamageFX.cs

Amplify Creations Shader Editor Users

Open the DamageFXDistMask function from the Assets/FORGE3D/DamageFX/Shaders/ and change the number of MaxPoints constant matching the number set in the script component. Recompile both Damage FX Functions and all shaders affected by this change.

Modifying shaders by hand

Open the Damage FX Shader sample and search for the existing number of points in the search field of your favorite editor: