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threejs-geometry

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Three.js geometry creation - built-in shapes, BufferGeometry, custom geometry, instancing. Use when creating 3D shapes, working with vertices, building custom meshes, or optimizing with instanced rendering.

When to use

• You need to create or optimize geometry in Three.js.
• The task involves built-in shapes, custom `BufferGeometry`, vertices, or instanced rendering.
• You are working on mesh structure rather than scene setup or materials alone.

When not to use

• Use this skill only when the task clearly matches the scope described above.
• Do not treat the output as a substitute for environment-specific validation, testing, or expert review.
• Stop and ask for clarification if required inputs, permissions, safety boundaries, or success criteria are missing.

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