Nebula Effect | Unreal Engine Niagara Tutorials | UE4 Niagara Nebula - CGHOW

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hi guys today i have created this nebula effect in unreal engine Niagara. its very simple and i have 6-8 variation of this effect just my changing texture in materials. and this this from scratch tutorial.
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Nebula Effect | Unreal Engine Niagara Tutorials | UE4 Niagara Nebula

Video Summary:

Topic: Creating a Nebula Effect in Unreal Engine Niagara.
Overview: Asif Ali demonstrates how to create a dynamic nebula effect where the texture can be changed, and the entire effect responds accordingly.

Key Points:

Creating the Particle System:
- Begin by creating a new Niagara particle system.
- Use a sphere location or static mesh location for spawning particles.
- Apply curl noise for random motion and drag to slow down the particles.
- Use vortex force to rotate the particles, creating the nebula movement.
- Utilize GPU for handling large numbers of particles (e.g., 10,000).
Mesh Creation (Maya):
- The nebula shape is made using a torus mesh with noise applied using Maya’s deform modifier.
- Multiple duplications and scaling are done to create a randomized look for the nebula.
Material Setup:
- Dynamic parameters are added to the material to change the color of the nebula particles.
- Apply a texture to the material, which dynamically responds per particle.
- Use a dynamic parameter (float) to control the color, which is connected to the UVs of the mesh.
Particle System Adjustments:
- Different spawn rates and color values are used to create varied effects like glow and streaks.
- Color noise is applied to give the nebula a more organic look with random movement.
- Adjustments in particle size and velocity alignments are made for different behaviors in the nebula system.
Mesh Creation in Maya (Detail):
- In Maya, the mesh is created by applying a noise modifier to a torus and adjusting its radius and segments to create random variations.
- Duplication and scaling are done to generate the desired nebula shape.

Notes and Tips:

Material Changes: Changing the texture in the material dynamically changes the entire nebula effect, offering flexibility for various nebula looks.
Performance Considerations: When using thousands of particles (like 10,000), ensure the effect is optimized for GPU use.
Custom Mesh Creation: Using simple geometry and deforming it with noise in Maya can create complex nebula shapes without overly complex modeling.

CGHOW | Ashif Ali