18 lines
896 B
Markdown
18 lines
896 B
Markdown
# Brush Authoring
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Brushes are persisted blockout geometry stored as `ActorKind::Brush + BrushDesc`.
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## MVP Scope
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- `BrushDesc::default()` creates an additive cube brush.
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- Each face stores a stable ID, plane, vertices, optional material/texture refs, UV offset/scale/rotation, and smoothing group.
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- Hydration builds generated mesh children from active brush components and strips those children before scene save.
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- Brush actors validate separately from primitives and imported/static mesh actors.
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- The Actor Inspector Add Component shelf can add a **Brush** component. The Brush card exposes kind, face count, shadow flags, and cube reset.
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## Current Limits
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- Only convex authored faces are supported by the mesh builder.
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- Subtractive brushes are stored as markers but are not evaluated as CSG.
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- Face, edge, vertex, clipping, and primitive brush creation tools are future roadmap work.
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