Niagara Tutorial: Simple GPU Emitter | UE Content Examples Reconstruction

Version: 4.26, 中文
Created: 2021-01-22, Updated: 2021-03-25
Author: Cyanhall
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1. Preparation

This is the effect we are going to make in this tutorial.

Note: The main content of this tutorial comes from the Content Examples that come with Unreal Engine

Tip: Use ⬆️ ⬇️ to turn the page up and down. We recommend browsing with a large screen for a better reading experience.

Full Tutorials:

1. UE Niagara: Simple Sprite Emitter
2. UE Niagara: Simple Mesh Emitter
3. UE Niagara: Simple GPU Emitter
4. UE Niagara: Sprite Facing
5. UE Niagara: Blend Attributes By Value
6. UE Niagara: Static Beams
7. UE Niagara: Dynamic Beams
8. UE Niagara: Multiple Renderers
9. UE Niagara: Location Events
10. UE Niagara: Expressions

3. Let's start the reconstruction

Right click and select FX => Niagara System to create.

4. Create Niagara System

Select Empty template, click + and Finish

5. Create Niagara System

As a result, we get a Niagara System asset, click to open it.

6. Empty Niagara System

You can see that we have an empty Niagara system.

7. Sim Target

Select Emitter Properties, set Sim Target to GPUCompute Sim, and check Fixed Bounds.

8. Spawn Rate

Click on the + sign to the right of the Emitter Update to add the Spawn Rate module.

Spawn Rate: Number of particles per second to spawn.

9. Spawn Rate

Set the Spawn Rate value to 1000.0.

Spawn 1000.0 particle per second.

10. Spawn Burst Instantaneous

Click on the + sign to the right of the Emitter Update to add the Spawn Burst Instantaneous module

11. Spawn Burst Instantaneous

Set Spawn Count to 3500

12. Initialize Particles

Select Initialize Particles and set:

1. Color Mode to Direct Set
2. Sprite Scale Mode to Uniform and its value to 1.5

13. Sphere Location

Add the Sphere Location module in the Particles Spawn section.

14. Sphere Radius

Set Sphere Radius to 10.0

15. Scale Sprite Size

Add the Scale Sprite Size module to the Particles Update section.

16. Scale Sprite Size

Edit the Scale Factor's value to Vector 2DFrom Float.

17. Scale Sprite Size

Set its value type to Float from Curve.

18. Scale Sprite Size

Edit this curve to control its value over time

19. Scale Sprite Size

Select the first point and drag it to the bottom.

Note: Here you can also select this point and directly set its Time to: 0 and Value to 0.

20. Scale Sprite Size

Mouse over the small red circle, right click, and select Add key to Curve.

21. Scale Sprite Size

Set the Time of the newly added point to 0.15 and the Value to 1.

22. Scale Sprite Size

In the same way, add a point: Time is 0.75 and Value is 1.

Then select each point, right-click, and select Auto.

23. Curl Noise Force

Add Curl Noise Force module to the Particle Update section.

24. Curl Noise Force

Click the first Fix issue button to add its dependency on the SolveForcesAndVelocity module.

25. Curl Noise Force

1. set Noise Strength to 125.0
2. Set Noise Frequency to 25.0.
3. Select the value of Noise Quality/Cost as Baked(Low).
4. set the value of Pan Noise Field to (X: 1, Y: 1, Z: 1