Target platforms are Android Google Filament, Three.js/WebGL, mobile XR, and VITURE glasses. Build an editable real-time hero character, not a presentation render.

Coordinate and scale: meters, Y-up, +Z forward, feet grounded at Y=0, root/pivot centered between all four paws. Height to ear tips is 0.45 m. Apply transforms before delivery.

LOD0 target is 85,000 triangles. Keep no more than 100 deforming joints, no more than four skin influences per vertex, preferably eight materials or fewer and twelve draw calls or fewer. Use clean quad topology at the editable optimized stage. Concentrate loops around eyelids, eyes, muzzle, mouth corners, cheeks, jaw hinge, ears, shoulders, elbows, wrists, hips, knees, ankles, paws, and tail base. Avoid long thin triangles, non-manifold edges, doubled surfaces, internal shells, floating fur cards, and accidental intersections.

Required logical meshes: `NexiOrganicCoat` as the continuous skinned organic body/head/facial mesh; separate eyes; separate teeth and tongue; separate collar; separate medallion; separate optional silhouette fur-card meshes. Do not split the facial region into disconnected organic pieces.

Use standard metallic-roughness glTF PBR materials. Supply 4K source maps: base color, OpenGL normal, ambient occlusion, roughness, metalness, and emissive. Base color and emissive use sRGB; normal, AO, roughness, and metalness use linear data. Do not require procedural Blender nodes, particle hair, UDIMs, geometry shaders, custom runtime shaders, external web resources, or unsupported texture extensions.

Final primary GLB must load without Draco, Meshopt, or KTX2 decoders. Compression variants may be supplied separately but cannot replace the uncompressed compatible master. Textures must be available separately and embedded in the primary GLB download when possible.

No environment, floor, lighting rig, camera, background, hidden reference meshes, control shapes, or presentation platform may be included in the application GLB. Preserve editable rig controls in FBX/source delivery but export only deform bones and required runtime nodes to GLB.

