Waving flag with a pinned edge
In your harnessGodot shaderMIT
Animate a flag on a subdivided quad: travelling waves grow away from the pole edge, a droop adds weight, analytic derivatives rebuild the normals, and the face shows procedural stripes and a disc or an assigned texture.
What it takes and gives
- Shader type
- spatial
- Render modes
- cull_disabled
- Parameters
- flag_texture (sampler2D), stripe_a (vec4 = 0.1, 0.25, 0.6, 1), stripe_b (vec4 = 0.95, 0.95, 0.92, 1), emblem_color (vec4 = 0.9, 0.7, 0.15, 1), stripes (int = 5), amplitude (float = 0.12), wavelength (float = 0.9), speed (float = 3) and 2 more
- Use it on
- A QuadMesh (or plane) with enough subdivisions along U; the pole side must be at U = 0., Optional: a flag image for
flag_texture. - Result
- A striped flag with a gold disc rippling in waves that start at the pole.
- Renderers
- compatibility: compiled and rendered, forward plus: not verified, mobile: not verified
- Placement
- res://baltor/godot_shaders/flag_wave_cloth/
Limits. Not a cloth simulation: no gravity response to orientation, no wind direction and no collision. Normals come from the UV-space function, assuming an unscaled quad, so strongly non-uniform scale skews lighting. Shadows follow the moving shape.
Details
- Kind
- Godot shader
- Engine
- Godot 4.3 or later
- Files
- 11 files, 54.9 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
- Travelling sine waves weighted by distance from a pinned edge, Finite-difference normals of a displacement function
- Tags
- godot shader, spatial, flag, cloth, wind, vertex animation, banner
- Identity
library.supply.creative_originals.4ce0d757065cae57726f7146.e54c379a9004f0ea- Version
e54c379a9004f0ea563a428c0b5351f87509f6dacdeaed09aedfaaee393c235e
The version is the SHA-256 of the item your harness downloads; every file in it names its own checksum.
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