verve.gl — GPU instancing

A 16×16 field of 256 hue-varied cubes rendered in a single instanced draw call. Per-instance TRANSLATION, ROTATION, SCALE, and _COLOR_0 attributes are stored in the vmesh instances section (decoded from EXT_mesh_gpu_instancing in the source GLB). GlScene emits one draw_pbr_instanced command; both WebGL2 and WebGPU backends dispatch a single instanced draw for all 256 cubes.

Drag to orbit · wheel to zoom. All 256 cubes are drawn in one GPU call via variant_instanced + draw_pbr_instanced (wire tag 27).