Brushed metal with a Ward anisotropic highlight
In your harnessGodot shaderMIT
Brushed metal with a custom light function: a Ward anisotropic specular stretched along a brushing direction (linear along the tangent or circular around a UV centre) plus fine procedural brush streaks.
What it takes and gives
- Shader type
- spatial
- Parameters
- metal_color (vec4 = 0.82, 0.83, 0.85, 1), roughness_along (float = 0.08), roughness_across (float = 0.45), circular (bool = no), circle_center_u (float = 0.5), circle_center_v (float = 0.5), streak_density (float = 600), streak_strength (float = 0.25) and 2 more
- Use it on
- A mesh with UVs and tangents.
- Result
- Metal with a bright highlight smeared along the brushing, here as rings across a spun disc.
- Renderers
- compatibility: compiled and rendered, forward plus: not verified, mobile: not verified
- Placement
- res://baltor/godot_shaders/brushed_metal_anisotropic/
Limits. Ignores environment reflections: only scene lights give specular, so add a light or use Godot's built-in ANISOTROPY output when reflections matter. Ward's model is not energy conserving at grazing angles. Circular brushing needs UVs centred on the disc (the CylinderMesh caps qualify).
Details
- Kind
- Godot shader
- Engine
- Godot 4.3 or later
- Files
- 11 files, 72.7 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
- Ward anisotropic BRDF (Ward 1992), Fragment-to-light varying for a per-pixel tangent frame, Value noise with quintic interpolation and fractional Brownian motion for brush streaks
- Tags
- godot shader, spatial, metal, anisotropic, brushed, ward brdf, custom light function
- Identity
library.supply.creative_originals.b0a827b7642486287664d935.9d4d90fc240d4b67- Version
9d4d90fc240d4b67ad97e00d451460ad2845916759e3ec59126dce5b62520396
The version is the SHA-256 of the item your harness downloads; every file in it names its own checksum.
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