DNA in UE4 Niagara

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DNA in UE4 Niagara

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Title: Create DNA Structure in Unreal Engine Niagara | Step-by-Step Tutorial

Intro:
Hi guys, I’m Asif Ali, and you’re watching another CGHOW video! Today, we’re going to create a DNA structure using Unreal Engine Niagara. Let’s dive right in!

Step 1: Setting Up

• First things first, don’t forget to subscribe to my channel and hit the bell icon to stay updated with all new videos!
• For this DNA structure, I need two spirals of balls connected with pipes. I’ll keep it simple for now, but feel free to experiment by adding multiple balls and adjusting the structure as needed.

Step 2: Creating the Niagara Particle System

• I’m starting with a Fountain Particle System and replacing the default emitter with a sphere mesh.
• I’ll apply a basic material to the sphere and use Particle Color to connect it with the emissive output for some glow effect.

Step 3: Adjusting the Sphere

• Rename the sphere to “Red” and set up a simple spiral using sine and cosine functions for the X and Y axes.
• Adjust the settings to control the shape and size of the spiral. You can also tweak the spawn rate and the size of the particles.

Step 4: Creating the Second Spiral

• Duplicate the red spiral and change its color to green. The two spirals will be moving in opposite directions, so adjust the values accordingly for proper alignment.
• To add some space between the two spirals, I use initial positions and adjust them based on the particle locations.

Step 5: Creating the Slender (Connecting Pipe)

• To create the slender connecting the spirals, I imported a simple cylinder mesh and adjusted its size.
• Use the Reader Attribute module to read the positions of the particles and adjust the cylinder’s orientation to connect the two spirals.

Step 6: Aligning the Slender

• Now, I need the slender (cylinder) to face the particles correctly. I do this by calculating the direction between the particles and applying it to the cylinder.

Step 7: Finalizing the Structure

• I tweak the scaling of the particles and slender based on the direction vector, so everything is aligned properly.
• Use a spring force to prevent the particles from moving too far apart when animated. This keeps the structure stable while still allowing for movement.

Step 8: Animation

• To animate the DNA, I add Curl Noise to the red particles and apply a spring force to make them move but return to their original positions. This creates a dynamic effect while keeping the spirals intact.

Step 9: Testing the Animation

• Once everything is set up, I adjust the spawn parameters and check how the animation looks in the viewport.
• You can tweak the number of particles or adjust the effect using user parameters for more control.

Outro:
And that’s how you create a DNA structure in Unreal Engine Niagara! I hope you found this tutorial helpful. Let me know in the comments if you have any questions or suggestions. Don’t forget to subscribe to my channel for more tutorials. Thanks for watching, and keep learning!

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Key Points in Bold:

• Create the DNA structure using spirals and connecting pipes in Niagara.
• Customize the spheres and particles using sine and cosine functions.
• Import and adjust the slender mesh to connect the spirals.
• Use spring force for stability and Curl Noise for animation.
• Control the particle spawn rate and sizes for dynamic effects.

Tags:

#UnrealEngine #Niagara #VFX #GameDev #DNAstructure #ParticleSystem