Animated Rain/Waterdrop Material

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This material set is used for rain flow effect on surfaces like glass windows or solid surfaces.

  • Supported Target Platforms
  • Supported Engine Versions
    4.17-4.21

Description


Update 2! (Update Approved)

Dynamic Rain Volume with rain particles is added as a usage option. It is not as realistic as the original usage of the material but it is very easy to make an area look like it's under rain by placing the volume over the area.

Using on scenes:

https://youtu.be/hswSf5Kq_ks

https://youtu.be/3ab1Vof87rM

How to scale Dynamic Rain Volume?

https://youtu.be/eKJWjPw7LYs


Update!

Post process version of the material is added to the pack. Same parameters are useable on post process material.

Please check this video out:

https://www.youtube.com/watch?v=7Y7bWyG-_Dw


Material tweak video:

https://www.youtube.com/watch?v=V4cvskmZ5Gc

Unreal Engine - Rain Material Implementation Tutorial

https://www.youtube.com/watch?v=TxjYz9l3WX8

Rain Material on Unreal Engine Interface

https://www.youtube.com/watch?v=K2_0RWK-7fE

Rain Material on Unreal Engine Interface 2

https://www.youtube.com/watch?v=tWy7ulHT6wo

Material has 2 types of usage:

1. For vertical surfaces that let the rain flow down (Rain_flow_material)

2. For horizontal surfaces that rain fall on them (Ground_rain_normal_overlay)

Technical Details


Installation: Copy the archive content to your unreal project content folder.

Follow the steps on this video: https://www.youtube.com/watch?v=TxjYz9l3WX8

General flow speed: Set 0 to stop all flowing.

Mask general flow speed: If general flow speed is not 0, this will set the general speed of vertical flow piles.

Bottom layer flow speed: Set 0 to stop 1/3 of drops.

Bottom mask flow speed: This will set the partial speed of vertical flow piles on bottom layer. Set it 0 to hide 1/3 of vertical flows.

Middle layer flow speed: Set 0 to stop 1/3 of drops.

Middle mask flow speed: This will set the partial speed of vertical flow piles on middle layer. Set it 0 to hide 1/3 of vertical flows.

Top layer flow speed: Set 0 to stop 1/3 of drops.

Top mask flow speed: This will set the partial speed of vertical flow piles on top layer. Set it 0 to hide 1/3 of vertical flows.

IOR: Index of refraction value

Opacity-control: Material opacity value

Specular amount: Material specular value

Static speed: This value will set the flow speed of tiny drops between static drops.

Static drop on?: Set it to 1 for horizontal surfaces that has no flow. (General flow speed must also set to 0)

Static drop speed: This is the refresh rate of changing positions of the drops which looks like rain fall on surface.

UV multiplier: Tile multiplier of the general Material.

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