Particle water fountain with swirl and floor bounce
In your harnessGodot shaderMIT
GPU particle process shader for a fountain: droplets leave a nozzle disc in a cone, swirl around the axis, fall under gravity, bounce once on a floor height and fade from water to spray colour.
What it takes and gives
- Shader type
- particles
- Parameters
- launch_speed (float = 5.5), spread_degrees (float = 9), nozzle_radius (float = 0.06), swirl_speed (float = 0.8), gravity (float = 9.8), floor_height (float = 0), bounce (float = 0.3), droplet_scale (float = 1) and 2 more
- Use it on
- A GPUParticles3D node with a draw pass mesh (for example a small QuadMesh) whose material uses vertex colour as albedo and particle billboarding, as in
demo.tscn. - Result
- An arcing jet of droplets that rises, falls, bounces on the floor height and fades into spray.
- Renderers
- compatibility: compiled and rendered, forward plus: not verified, mobile: not verified
- Placement
- res://baltor/godot_shaders/particles_fountain/
Limits. The floor is an infinite horizontal plane; there is no collision with scene geometry (use Godot's particle collision nodes for that). Each droplet bounces with the same rule, so repeated bounces lose energy quickly. Positions are in world space (local_coords off), so moving the emitter leaves droplets behind as real water would.
Details
- Kind
- Godot shader
- Engine
- Godot 4.3 or later
- Files
- 11 files, 78.5 KB
- Licence
- MIT
- Declared effects
- reads files, runs commands
- Checked with
- Godot 4.7.2, opengl3 compatibility (Mesa llvmpipe, Xvfb)
- Checks
- contract static, engine run, engine log clean, shader in scene, capture written, render not uniform, shader changes pixels
- Techniques
- Integer hash for per-particle random numbers, Uniform sampling of a cone and a disc, Explicit Euler integration with velocity reflection at a plane
- Tags
- godot shader, particles, fountain, water, gravity, bounce
- Identity
library.supply.creative_originals.9b154abed4c5f3866f90d4dc.57bc07eafaf577a4- Version
57bc07eafaf577a420eee6fb5774fa8f709de1146245cdca75299860c8aff039
The version is the SHA-256 of the item your harness downloads; every file in it names its own checksum.
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