Embergen for Beginners | Create a Realistic Tornado with Fire in 5 Minutes

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Content

1. Interface Overview

  • Open the software and observe the default viewport.
  • Learn basic navigation controls:
  • Right-click → rotate camera
  • Left-click → interact/select
  • W, A, S, D → move like a game
  • Q → move down
  • E → move up
  • Ctrl + Space → maximize/minimize panels.

2. Understanding the Main Panels

  • Viewport: The main screen where you see your simulation.
  • Timeline: Located at the bottom; controls playback and looping.
  • Node Graph: Clicking any node shows its properties below.

3. Setting Up a Simulation Container

  • Click on Simulation.
  • Adjust Container Dimensions (simulation happens inside this box).
  • Larger dimensions require more computing power.
  • Monitor Voxel Count:
  • Higher voxels = slower simulation
  • Adjust the size until your system handles it smoothly.

4. Adding a Volume Simulation

  • Click Emitter → choose Volume.
  • Nothing appears yet because a shape must be connected.
  • Go to Shape → Primitives and insert a shape (e.g., Sphere or Box).
  • Adjust the shape size based on your needs.

5. Adding Smoke or Fire

  • Scroll down to Fuel / Smoke options:
  • Set Fuel Image → enables fire
  • Set Smoke Image → enables smoke
  • You can disable fire or smoke by selecting No Image.

6. Creating a Tornado (Basic Setup)

  • Use a Cylinder shape as the emitter.
  • Add a Force:
  • Go to Forces → add Force Line.
  • This controls the movement direction of the smoke/fire.

7. Adjusting Force Settings

  • Push Strength:
  • Controls how fast the smoke moves upward.
  • Twist Strength:
  • Controls the rotation of the tornado.
  • Negative value = rotates one direction
  • Positive value = rotates opposite direction
  • Repel Strength:
  • Pushes particles outward or inward.
  • Positive = tornado widens at the top
  • Negative = tornado narrows at the top

8. Hiding the Container Box

  • Press B in the viewport to hide the boundary box.

9. Adding Fire for a Better Look

  • Go to Fuel Engine.
  • Increase fuel values to add visible fire inside the tornado.

10. Final Result

  • After adjusting twist, force, and fuel:
  • A basic tornado simulation is ready.