Underwater Bubbles Effect

Documentation for every setting is included inside the geometry nodes setup, open the node tree and you'll find it in the documentation frame on the left.

A procedural underwater bubble system built with Geometry Nodes simulation zones. Bubbles emit from the object's origin, so simply move and rotate the emission direction property from the geometry nodes properties to aim the stream.

perfect for a diver's breath, a seabed vent, or seepage from rock cracks. Adjust emission amount, speed, direction, spread, emitter radius, buoyancy, drag, turbulence, size, and growth from the modifier panel. Bubbles rise and accelerate as water pressure drops, gently wobble and jostle apart from their neighbors, and pop when they reach the water surface. Assign a collision collection to make them bounce and slide around obstacles, and set a surface object or height so they escape realistically at the top. Each bubble is a double-walled shell for convincing refraction in EEVEE and Cycles. After changing settings, jump back to frame 1 to reset the simulation.