threejs-geometry

Optimize Three.js geometry by using indexed BufferGeometry, merging static meshes, and rendering repeated objects with instancing to reduce draw calls and improve frame rate. These techniques minimize overhead when rendering complex 3D scenes with many objects.

Create custom Three.js meshes by defining BufferGeometry with specific vertex attributes including positions, indices, normals, UVs, colors, and interleaved attributes for tailored models and materials. This allows precise control over 3D geometry structure.

Generate built-in Three.js primitives like boxes, spheres, planes, cylinders, torus shapes, and text meshes for rapid scene building. These standard geometries provide foundational 3D objects without manually defining vertex data.

Three.js instancing works for rendering thousands of repeated objects in one scene by using instanced rendering to reduce draw calls and improve frame rate. This approach is ideal for procedural 3D product demos with massive object counts.

You need to recompute normals and bounds when modifying Three.js BufferGeometry to ensure correct lighting, accurate collision detection, and proper view frustum culling. Geometry utilities handle merging, centering, scaling, and recomputing these attributes.

You can create path-based shapes, lines, points, and point clouds using Three.js BufferGeometry for modeling and optimization tasks. These structures support custom extruded shapes and wireframes alongside standard 3D meshes.