What problem does it solve? High-detail 3D models often look faceted up close or stall the renderer when shipped unoptimized. This Skill guides the creation of believable close-up geometry and its conversion into practical runtime assets with LODs, instancing, and efficient loading. ## Core Features & Use Cases - Close-Up Modeling Guidance: Separates detail into silhouette, surface form, and microdetail, with rules for bevels, normals, curve segments, procedural swept branches, and scanned rock geometry. - Runtime Optimization: Covers glTF/GLB export validation, Three.js LOD thresholds with hysteresis, InstancedMesh for repeated geometry, shadow cost control, and geometry compression. - Startup & Interaction Performance: Prioritizes hero geometry loading, defers optional detail, uses proxies for selection and collision, and defines verification steps for frame time and draw calls. - Use Case: A developer building a Three.js landing page with a hero tree and stone scene uses this Skill to model smooth swept trunks, instance leaf cards, and configure LOD transitions that hold 60fps on mobile. ## Quick Start Use the 3d-high-poly-models skill to build a detailed hero model for my Three.js scene and prepare optimized runtime LODs for it.
