Rain on a window with running drops
In your harnessGodot shaderMIT
Window pane covered in rain: static droplets of random size scattered in cells, drops that run down with trails, each drop refracting a sharp upside-down view while the glass between them shows a blurred, misted scene.
What it takes and gives
- Shader type
- spatial
- Render modes
- unshaded, cull_disabled, depth_draw_never, shadows_disabled
- Parameters
- screen_texture (sampler2D), drop_density (float = 12), drop_size (float = 0.28), runner_columns (float = 7), runner_speed (float = 0.35), refraction (float = 0.06), mist_blur (float = 3), mist_tint (vec4 = 0.82, 0.87, 0.92, 1) and 1 more
- Use it on
- A quad (the pane) in front of the scene, with UV v pointing down the glass.
- Result
- A misty pane with clear beads of water showing sharp, bent bits of the scene, and drops sliding down.
- Renderers
- compatibility: compiled and rendered, forward plus: not verified, mobile: not verified
- Placement
- res://baltor/godot_shaders/rain_glass_droplets/
Limits. Screen-space refraction cannot show what is off screen and does not invert the view like a real lens. Drops do not merge or interact; runners can pass through static drops. The mist blur depends on the screen texture's mipmaps.
Details
- Kind
- Godot shader
- Engine
- Godot 4.3 or later
- Files
- 11 files, 71.0 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
- Hashed cellular droplet placement, Screen texture refraction with mip-level blur, Column-based running drops with trails, MurmurHash3 32-bit finalizer over prime-combined lattice coordinates as a hash
- Tags
- godot shader, spatial, rain, glass, droplets, refraction, window
- Identity
library.supply.creative_originals.168f05bc52797616041b2e70.f9721756339c1023- Version
f9721756339c1023cce55c9d34d9fb2eac5cea2f2a88f88cfe613f42fd4b2070
The version is the SHA-256 of the item your harness downloads; every file in it names its own checksum.
Related files
Screen-space glass refraction with dispersionIn your harness
Wet cobblestones with rain puddles and ripplesIn your harness
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