Hexagon Grid in UE4 Niagara

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Hexagon Grid in UE4 Niagara

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Title: Create Hexagon Grid Effect in Niagara | Unreal Engine Tutorial

Intro:
Hi guys, I’m Asifaji, and welcome back to CGHOW! Today, we’re creating a hexagon grid effect in Unreal Engine using Niagara. Let’s get started!

Step 1: Setting Up Niagara

• First, we create a new Niagara particle system. I’ll take the default Fountain system and rename it “Hexagon Grid.”
• Disable the unnecessary components, such as forces and spawn rate. We need a grid-based particle system.

Step 2: Creating the Hexagon Grid

• To create the grid, use the Grid Spawn Particle system. Set the grid’s location with “Grid Location.”
• I only need the grid on the X and Y axes, so set the Z-axis to 0.
• Set the particle life to a constant value of 10 and keep it infinite for the lifetime.

Step 3: Adding Hexagon Mesh

• To shape the grid into hexagons, I create a simple hexagonal mesh and scale it down to fit.
• After that, I import the mesh into Unreal Engine, replace the sprite renderer with the mesh renderer, and adjust the mesh size to 0.5.

Step 4: Styling the Grid

• To get the hexagon grid to look like the one in my previous tutorial, I’ll apply a gradient to alternate between black and white using material logic.
• The key here is using a sine function or offset values to create the alternating rows. I adjust the texture to apply the gradient effect in the Niagara system.

Step 5: Adding Offsets and Animating the Grid

• To offset every other row, I modify the Y-axis position by adding a custom offset value. This creates the staggered hexagon rows you see in the grid.
• For animating, I randomize the scale on the Z-axis, adjusting it between 0 and 1 for a more dynamic effect.

Step 6: Fine-Tuning and Adding Variations

• Duplicate the emitter and adjust values like color and size to create multiple layers or “steps” within the grid.
• To adjust the color strength, you can add or multiply the color’s intensity.
• I also show how to synchronize the scaling for all emitters and add variations in color and size.

Step 7: Final Look and Simulation

• After applying these steps, you’ll have a dynamic hexagonal grid effect that looks great in the viewport.
• Finally, I demonstrate how to simulate and showcase the result in full-screen mode.

Outro:
That’s it for today’s tutorial! I hope you found this helpful. Don’t forget to like, share, and subscribe to CGHOW for more Unreal Engine tutorials. Keep learning, and I’ll see you in the next video. Bye!

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Additional Notes for Blog Post:

• Tags: #UnrealEngine #Niagara #HexagonGrid #VFX #GameDev
• Key Points in Bold:
  • Create a Niagara particle system and set up a grid spawn.
  • Use a custom hexagon mesh for the grid.
  • Apply color gradients and offsets for hexagonal row effects.
  • Animate and randomize particle sizes for dynamic effects.
  • Duplicate emitters for multi-layer effects with different color variations.

This format should be a great fit for your CGHOW YouTube tutorials and CGHOW.com blog. Let me know if you need any adjustments!