Rust over paint material with chipped edges
In your harnessBlender toolMIT
Build a painted steel node material that rusts in noise patches and in crevices found by ambient occlusion, with a thin ring of bare steel where the paint chips, and coverage, cavity weight and chip width as parameters. Use it for ships, machines, vehicles and post-industrial scenes.
What it takes and gives
- Operator
- baltor.material_rust_paint
- Parameters
- material_name, paint_color, coverage, cavity_weight, ao_distance, chip_width, rust_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. The cavity term uses the Ambient Occlusion shader node, which Cycles evaluates by ray tracing and EEVEE approximates in screen space, so rust in crevices differs between them. Rust spreads by noise thresholds, not by any corrosion model, and has no streaks below edges. 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, 121.3 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
- Nested threshold masks from one scalar field for rust and chipped paint, Ambient occlusion as a cavity mask, Mixing three Principled shaders by masks
- Tags
- blender, material, shader nodes, rust, weathering, procedural texture, metal
- Identity
library.supply.creative_originals.dfe7e619067e04cd931addeb.3639ae600fc9d907- Version
3639ae600fc9d907e2ec4877a71211161fde8305a95dbcaf1b2d5fc1b05e1326
The version is the SHA-256 of the item your harness downloads; every file in it names its own checksum.
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