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Hot Spring builds photorealistic hot tubs and spas inside Blender, with water that moves, jets that blast, air bubbles that rise and a soft looped water sound. Pick one of 27 designs modeled on real tubs, from portable acrylic spas with loungers to in-ground mosaic spas, raised spillover spas, rooftop infinity edges, whirlpool baths, inflatable tubs, cedar barrels with a wood stove and Japanese hinoki ofuro, then change anything. The tub rebuilds live as you drag.

Everything loops seamlessly, so a render of any length plays without a jump. The water surface ripples and churns over the jets, pressurized water streams out of every jet as white plumes, air bubbles rise from the floor, and caustics dance on the seats under water. Soap foam, floating soap bubbles and steam are optional, and so is the looped sound: jets, an air bubbler, calm water or a waterfall, playing in the viewport and in rendered video.

The shell has real molded seats, loungers, armrests and a footwell, with jets, pillows, a skimmer, cup holders, LED lights and a control panel. Choose the outline, seating, cabinet cladding, deck or paving around it, steps, a hard cover (closed, folded or on a lifter) and the shell finish, from pearl acrylic and mosaic tiles to pebble and stainless steel.

Water that moves
Jets, rising bubbles, ripples and underwater caustics, all looping seamlessly.

27 designs to start from
Portable spas, in-ground mosaic spas, infinity edges, whirlpool baths, inflatables, cedar barrels and Japanese ofuro.

One click, a new hot tub
Pick a design or press Surprise Me in the sidebar, and the tub rebuilds in a moment.

Soap, steam and light
Switch on soap foam, floating soap bubbles, steam and LED lights in any color.

Features

• 27 designs in four families: hot tubs, built-in spas, whirlpool baths and specialty tubs
• 8 constructions: portable spa, built-in, raised wall, infinity edge, whirlpool bath, inflatable, cedar barrel and ofuro
• 9 outlines and 8 seating layouts with loungers, benches and swim spas
• Animated water, jet plumes, rising bubbles and underwater caustics, all looping seamlessly
• Optional soap foam, soap bubbles, steam and looped water sound
• LED lights in 7 colors plus a color cycle, waterfalls and wood stoves
• 12 shell finishes, 5 cabinet claddings, 7 cabinet colors and 4 surrounds
• Condition: new, used, old and dirty, or neglected with algae water and floating leaves
• Hard covers in 4 colors: closed, folded or on a lifter
• Surprise button for endless random tubs
• Picture-driven sidebar and Shift+A menu
• Photoreal in both Cycles and EEVEE

Requires Blender 4.2 or newer. Tested on Blender 4.2, 4.5 and 5.2 LTS.