Swirling portal disc
In your harnessGodot shaderMIT
Unlit portal surface: spiral arms twist toward the centre in polar coordinates, a bright rim ring and a dark core frame it, noise sparkles drift inward, and everything outside the disc is transparent.
What it takes and gives
- Shader type
- spatial
- Render modes
- unshaded, cull_disabled, depth_draw_opaque, shadows_disabled
- Parameters
- outer_color (vec4 = 0.45, 0.15, 0.95, 1), inner_color (vec4 = 0.2, 0.9, 1, 1), core_color (vec4 = 0.02, 0, 0.05, 1), rim_color (vec4 = 1, 0.85, 1, 1), arms (int = 4), twist (float = 6), spin_speed (float = 2), core_radius (float = 0.12) and 3 more
- Use it on
- A quad or disc with UVs spanning 0 to 1; the portal fills the inscribed circle.
- Result
- A spinning purple and cyan spiral disc with a dark centre and a bright outer ring.
- Renderers
- compatibility: compiled and rendered, forward plus: not verified, mobile: not verified
- Placement
- res://baltor/godot_shaders/swirl_portal/
Limits. Flat effect on a card; it has no depth or parallax. The polar angle has a seam where atan wraps, hidden by whole numbers of arms but visible with sparkles at high zoom. Unshaded, so it ignores scene light.
Details
- Kind
- Godot shader
- Engine
- Godot 4.3 or later
- Files
- 11 files, 73.8 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
- Polar coordinate spiral (angle plus twist over radius), Thresholded value noise sparkles, MurmurHash3 32-bit finalizer over prime-combined lattice coordinates as a hash
- Tags
- godot shader, spatial, portal, vortex, polar coordinates, magic, sci-fi
- Identity
library.supply.creative_originals.9751df0060b0483e977f639f.90ef7b68333e2243- Version
90ef7b68333e2243635f63e2f0f69d6024b740f55584b752dd9f83871c48fc6a
The version is the SHA-256 of the item your harness downloads; every file in it names its own checksum.
Related files
Energy beam with scrolling core and jitterIn your harness
Radar display with sweep and fading blipsIn your harness
Demoscene tunnel from polar coordinatesIn your harness
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