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Unreal Engine Niagara Tutorial | Download Files
hi, guys today I have created this fire disk effect in unreal engine Niagara. in this effect I will show you I I manage to place 3 disks with the same distance and spawned other elements from in. also check my post-process effect settings to make this even good looking effect.

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Hi guys, I’m Asif Ali, and you’re watching CGHOW! In today’s tutorial, I’ll be showing you how to create a cool Hall effect using Niagara in Unreal Engine 4.27. It looks complex, but it’s actually pretty simple. Let’s dive right into it!

Before we start, don’t forget to subscribe to my channel and click the bell icon so you never miss an update!

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Creating the Hall Effect:

So, let’s break it down step-by-step. This effect might seem complicated, but it’s all about simple elements combined together. Here’s what we’ll be making today:

1. Crack Material
   First, I created a crack texture in Photoshop with random shapes using the Pen Tool. It has two channels: Green and Red.
   • Red Channel: Multiply this with a hot color like reddish-orange to give the crack its glowing effect.
   • Green Channel: Use this for opacity control by connecting it to the opacity mask and setting the material to unlit.
   To make the crack more dynamic, I added a noise texture that affects the red channel, which adds random variation.Then, I used a black body node to introduce color temperature (from red to yellow) and multiplied it for more intensity.
2. Fading Effect
   To fade the material on both sides, I used the Sine function. This way, we create a smooth fade-out for the crack from both ends.

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Creating the Niagara Effect:

Now, let’s create the Niagara effect:

1. Particle Settings
   For the first emitter, I used a sprite with the crack material. The key settings here are:
   • Spawn Rate: 3 particles.
   • Size: 200 (randomly rotated).
   • Lifetime: Infinite.
   I used custom alignment and align sprite to mesh, aligning it to the Z-axis so it faces the camera.The next step was adjusting the particles’ positions to ensure they don’t overlap. I used execution index to distribute the particles evenly along the Y-axis.
2. Second Emitter (Disk Effect)
   The second emitter is a disk shape. I created a new material with a fire texture and used the Red channel for emissive and opacity.To achieve a nice fade effect from the center of the disk, I used a power node and multiply with the texture to control how the opacity fades outward.
3. Smoke and Sparks
   I also added some additional elements like smoke and sparks:
   • Base smoke material: A simple 4×4 smoke texture with random frames and custom alignment.
   • Sparks: Created using a simple spark texture, set to random velocity to simulate sparks flying out.
4. Disks and Rotation
   The disks in the original effect are slightly wobbly, so I added slight rotation on the X-axis to create that wobbling effect.

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Additional Effects:

1. Amber and Sparks
   I duplicated the base effect and used velocity alignment to make the sparks shoot in random directions. I also adjusted the spawn rate and size to get a consistent, continuous emission of sparks.
2. Cylinder Smoke
   To create a rotating smoke effect, I used a cylinder mesh, adjusting its height and radius, and applied random color variation for a more organic feel.

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Final Touches:

Finally, I added some post-processing to enhance the visual appeal:

• Adjusted contrast, gamma, and gain to make the effect pop.
• Chromatic aberration for a more stylized look.
• Tweaked lens flare and shadow settings for extra polish.

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Conclusion:

That’s it! You now have a complete breakdown of how I created this cool Hall effect using Niagara in UE4.27. If you want to download the files for this effect, check the link in the description.

Thanks for watching, and don’t forget to keep learning and improving your skills. See you in the next video!