Support me on – https://www.patreon.com/Ashif Support me on – paypal.me/9953280644 hi guys i have created this under water scene in unreal engine 4.25 i used Niagara new tool Particle Attribute reader data interface for fish flocks and other Niagara system is bubbles i have also animated fish in material that i will show you in this video.
Video Transcript Summary: “Underwater Scene in Unreal Engine Niagara using Particle Attribute Trigger”
Introduction
Asif Ali introduces the underwater scene created in Unreal Engine using Niagara, specifically highlighting the new Particle Attribute Trigger tool in Unreal Engine 4.25.
Scene Setup
The scene consists of two particle systems: bubbles and fish. The fish particle system utilizes the Particle Attribute Trigger, while the bubbles use basic particles.
Creating the Fish Attractor System
The fish particles are designed to follow red attractor particles. Asif demonstrates how to create a new emitter and adjust spawn rates and colors.
The green particles (representing fish) are set to follow the red particles by using the Particle Attribute Trigger tool.
Using Particle Attribute Trigger Tool
A custom module is created using the Particle Attribute Trigger tool to allow the fish particles to follow the red particle positions.
A random ID is used to make the fish follow different red particles instead of a single one.
Attractor Settings
The attractor’s strength and radius are adjusted to make the fish follow the red particles more effectively.
Asif demonstrates how to apply curl noise and drag for more realistic movement.
Fish Movement and Animation
The fish movement is further controlled using random settings such as velocity orientation, drag, and collision with other objects (e.g., rocks).
Fish animation is controlled via a custom material that includes a dynamic parameter for random distortion of the fish’s movement.
Bubbles Setup
Bubbles are set to rise with random movement using a material that distorts the bubble appearance.
Asif explains the bubble particle setup, including random scaling, rotation, and the use of trails to follow the bubbles.
Additional Settings and Effects
The scale of the scene is increased to make the particles move on a larger scale. Simple grass wind effects are applied to materials to simulate natural movement.
Visibility of the attractor system is adjusted for better visual clarity.
Outro
Asif encourages viewers to comment their thoughts and ideas for future tutorials using the new Particle Attribute Trigger tool.
He also invites comments about any queries related to the video.
Key Takeaways
The Particle Attribute Trigger tool allows for advanced control over particle behaviors, such as making one particle system follow another.
Randomization of particle behavior (ID, movement, size, and speed) enhances the realism of particle interactions.
The fish animation uses a dynamic material with random distortion to simulate fluid-like motion.
Bubble particles are set to rise with random movement, and trails are used for visual effect.
I am Ashif Ali, Real-Time VFX Artist, I make Unreal Engine Niagara Tutorial on this channel. I've made it my mission to share my knowledge and expertise with the world through my YouTube channel. So why not join me on this exciting adventure? Follow me on my social links, subscribe to my channel, and support my growth as a creator. Together, we can create amazing things and take our skills to new heights. And who knows, you might even get access to some of my exclusive files for free!
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Awesome tutorial