procedural sun generator

Procedural Sun Generator (Geometry Nodes)

Build a living star in seconds. This Geometry Nodes rig lets you art-direct every part of the sun—surface granulation, sunspots, limb darkening, looping convection motion, fiery prominences, and a soft volumetric corona—without painting a single texture. Perfect for space shots, sci-fi UI, skyboxes, and motion graphics.

What you control

• Scale & Distance: Physical-size slider with camera-safe falloff so it reads at any focal length.
• Surface Detail: Granulation size, contrast, speed, and loop length (one master Time control).
• Sunspots & Active Regions: Density, size, softness, and drift across the surface.
• Limb Darkening: Dial in realistic edge falloff for a photographic look.
• Prominences/Flares: Procedural arc ribbons around the limb with rate, length, curl, and turbulence.
• Corona/Halo: Volumetric thickness, intensity, and fade distance—works in Eevee or Cycles.
• Color Temperature: From warm G-type “Sun” to stylized red/blue stars in one slider.
• Masks & Passes: Disk, Limb, Spots, Prominences, and Corona masks for the Compositor.