CGHOW | Ashif Ali

In this tutorial your will learn how to make rain system in unreal engine Niagara. i will also show the process of exporting splash fluid mesh from Houdini to unreal engine with VAT (vertex animation texture)

Houdini Game Developement Tool: https://github.com/sideeffects/gamede…
Butterflies tutorial – https://youtu.be/6f5Mrr_OT6s

#cghow #unrealengine #gamevfx #gamefx #ue4vfx #ue4fx #niagara #unrealengineniagara #unrealenginevfxtutorials

●Upload Your Tutorials/Work – https://cghow.com/
…………………………………………………………………………………………………………
Purchase Effect Package From Unreal engine Marketplace –
●Niagara Effects Pack – http://bit.ly/2LWgZTx
●Advanced Magical FX – http://bit.ly/2XQYyXL
……………………………………………………………………………………………………………………………………
●Patreon – https://www.patreon.com/Ashif
……………………………………………………………………………………………………………………………………

●Follow FB Page – https://www.facebook.com/cghow0/
●Join FB Group – https://www.facebook.com/groups/cghow/
……………………………………………………………………………………………………………………………………
●Android App – http://bit.ly/2XUnhoR
……………………………………………………………………………………………………………………………………
Playlists-
●Unreal Engine Niagara Tutorials – http://bit.ly/2SmPEuT
●Unreal engine VFX Tutorials -http://bit.ly/2JNXyJZ
●Unity VFX Tutorials – http://bit.ly/2XNGlKz
……………………………………………………………………………………………………………………………………
●Discussion & Help Forum – http://bit.ly/2Lo0Er7
……………………………………………………………………………………………………………………………………

Video Summary: Rain Effect Using Houdini and Vertex Animation Textures in Unreal Engine

• Introduction:
  • Ashif Ali, the creator behind CGHOW, presents a tutorial on creating a rain effect using vertex animation textures exported from Houdini into Unreal Engine.
  • The rain effect simulates falling raindrops and dynamic splashes, with a focus on learning the export/import process using Houdini and Unreal Engine.
• Overview:
  • The tutorial demonstrates how a splash effect was created in Houdini and imported into Unreal Engine using vertex animation textures. This includes material setup, particle system configuration, and using dynamic parameters for fine-tuning the visual effect.

Key Points:

1. Creating the Splash in Houdini:
   • The tutorial starts by showing a scene in Houdini, where a splash is animated.
   • The process involves removing unwanted elements and preparing the mesh for export.
   • Export Process:
     • The splash effect is exported as a vertex animation texture using Houdini’s Vertex Animation Texture shelf tool.
     • The texture and mesh are then prepared for Unreal Engine.
2. Importing the Asset into Unreal Engine:
   • In Unreal Engine, the mesh and texture are imported into a new folder.
   • The material for the splash is set up using Unreal’s material editor, where the vertex animation texture is animated in real-time.
3. Setting Up the Particle System:
   • Raindrop Emitter:
     • A basic particle system is created to simulate raindrops falling from the sky.
     • The system uses a mesh for the raindrops, with a simple reflective material and physics parameters like gravity, random mass, and size to add realism.
   • Splash Emitter:
     • The splash effect is triggered when raindrops hit the ground using event generation in the particle system.
     • Dynamic parameters like speed, opacity, and reflection are controlled to create variation in the splash behavior.
4. Adjusting the Effect:
   • The tutorial shows how to control various parameters in real-time, such as the speed and size of raindrops, the splash intensity, and animation speed for the vertex animation texture.
   • A secondary emitter is added for additional splash effects, giving more variation to the rain’s appearance.
5. Additional Effects:
   • A butterfly effect is briefly demonstrated, showing how simple planar meshes and materials can create fluid, dynamic animations, like flying butterflies.
6. Conclusion:
   • The tutorial wraps up by summarizing the steps to create the rain effect using Houdini and Unreal Engine.
   • Viewers are encouraged to experiment with different animations and textures to create their own effects.

Takeaway:

• By following this tutorial, viewers can learn how to integrate Houdini-generated vertex animation textures into Unreal Engine, creating dynamic and visually engaging effects like rain and splashes.
• The tutorial also emphasizes controlling particle behaviors and fine-tuning effects with dynamic parameters.