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Edge wear material from the Bevel node

In your harnessBlender toolMIT

Build a painted-metal node material that wears through to bare metal along convex edges: the Bevel node normal is compared with the true normal, and the edge term is broken up by noise into chips. Use it for tools, vehicles, props and game assets that need handled edges.

Render of Edge wear material from the Bevel node
The render its check recorded in Blender 5.2.1, 192 by 192 pixels.

What it takes and gives

Operator
baltor.material_edge_wear
Parameters
material_name, paint_color, metal_color, wear_width, sensitivity, wear_amount, noise_scale, assign
Result
One material with a node tree; assigned to the active object.
Blender
4.2 or later
Axes
Blender Z up, -Y forward
Units
metres

Limits. Relies on the Bevel shader node, which only Cycles evaluates; EEVEE returns the plain normal, so no wear appears there. Detects convex and concave edges alike within the radius. Noise-based chips, not a wear simulation. Rendered here with Cycles CPU only. Verified in Blender 5.2.1; written for the 4.2 API.

Details

Kind
Blender tool
Engine
Blender 4.2 or later
Files
11 files, 118.9 KB
Licence
MIT
Declared effects
runs commands
Checked with
Blender 5.2.1, background (Cycles CPU for previews)
Checks
addon install and enable, operator runs with defaults, blender data matches core, addon disable unregisters, script mode runs, clean reopen addon file, clean reopen script file, gltf separate export, engine output clean
Techniques
Bevel shader normal versus true normal as an edge detector, Noise-modulated threshold for chipped wear, Mix shader between paint and metal
Tags
blender, material, shader nodes, edge wear, weathering, bevel, cycles
Identity
library.supply.creative_originals.038a16fcddb8dd6a3925894b.3f87d21275851c58
Version
3f87d21275851c58ae71440c5fd64369abba714d398553a579c943078aae8da2

The version is the SHA-256 of the item your harness downloads; every file in it names its own checksum.

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