Installation

In Blender open Edit, Preferences, Get Extensions, then use Install from Disk and pick the zip.

Usage

1. Open the sidebar (N) in the 3D Viewport and click the Volcano tab.
2. With nothing selected, pick a design in the gallery (or step through them with the arrows) and click Add Volcano. Shift+A, Volcano works too.
3. Select the volcano to edit it: the volcano type picture, then the Shape, Lava, Ground, Smoke, Rocks and Detail tabs. Everything rebuilds live.
4. Use Surprise for a new random volcano, Vary for a variation of the current one and the palette button for a new look.
5. Lava moves when you play the timeline; Animated Lava and its speed are in the Lava tab, Animation.

Rendering tips

• Lava is emissive and lights the scene; turn on Glow Lights for light on the ground and the smoke.
• Plumes are volumes: in EEVEE raise Volumes, Samples for smoother smoke on big volcanoes.
• Kilometer-scale volcanoes set the camera and viewport clip distance for you.