Procedural 2D grass field with wind
In your harnessGodot shaderMIT
Fill a rectangle with layers of grass blades drawn procedurally: each blade has its own height, width, lean and colour, bends with travelling wind, and back layers are darker for depth.
What it takes and gives
- Shader type
- canvas_item
- Parameters
- front_color (vec4 = 0.42, 0.72, 0.25, 1), back_color (vec4 = 0.12, 0.32, 0.12, 1), tip_color (vec4 = 0.8, 0.85, 0.45, 1), blades (float = 60), blade_height (float = 0.55), wind_strength (float = 0.06), wind_speed (float = 1.4), layers (int = 3)
- Use it on
- A ColorRect (or any CanvasItem) sized to the area to fill; UVs span 0 to 1 across it.
- Result
- A strip of layered green grass blades with light tips swaying in front of a blue sky.
- Renderers
- compatibility: compiled and rendered, forward plus: not verified, mobile: not verified
- Placement
- res://baltor/godot_shaders/grass_field_2d/
Limits. Blades are flat colour without lighting. Very strong wind bends blades beyond the neighbour search and clips them. Cost is layers times three blade tests per pixel.
Details
- Kind
- Godot shader
- Engine
- Godot 4.3 or later
- Files
- 11 files, 62.6 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 blade placement per slot with neighbour search, Height-squared wind bending, Back-to-front layer compositing, MurmurHash3 32-bit finalizer over prime-combined lattice coordinates as a hash
- Tags
- godot shader, canvas item, grass, field, wind, foliage, procedural
- Identity
library.supply.creative_originals.53a0a06af6c118e174ffa629.391ded73ea99cf5a- Version
391ded73ea99cf5a5326d89d35f9611876443cfc788af334d4a01945c56c303d
The version is the SHA-256 of the item your harness downloads; every file in it names its own checksum.
Related files
Wind sway for 2D plants and bannersIn your harness
Grass blades swaying in travelling wind gustsIn your harness
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