3D Asset Generation

Use this skill when a production needs real meshes rather than primitive stand-ins. It complements threejs-world-generation: that skill owns semantic world planning; this skill owns how unique and repeated meshes enter the world with provenance.

Route by asset role

Need	Tool	Model/path	Why
Repeated vegetation, rocks, generic props	threejs_asset_catalog	CC0 Kenney catalog	Free, coherent, instancing-friendly
Unique object described in words	atlas_3d	tripo-h3.1/text-to-3d	Direct textured/PBR GLB with seeds and face limit
Object matching a concept image	fal_3d	Hunyuan 3D v3.1 Rapid image-to-3D	Better silhouette/style conditioning from one image
Several objects extracted from one regional composition	fal_3d	SAM 3D Objects	Individual and combined GLBs plus placement metadata
Terrain, composition, lighting, camera, final frames	blender_world	Blender 4.5 LTS / Eevee Next	Scene-level control; generated-asset APIs are not world renderers

Never ask a text-to-3D model to generate a whole cinematic world in one mesh. Generate hero objects, use licensed catalogs for high-volume scatter, and assemble everything in Blender from a semantic specification.

Paid-call discipline

Before every first provider call, state the exact provider, model, operation, estimated unit cost, and number of requested outputs. Generate one sample before a batch. As of 2026-08-13:

• Atlas Tripo H3.1: $0.22 untextured; $0.33 standard textures; $0.44 HD textures; detailed geometry adds $0.22; quad mesh adds $0.055.
• fal Hunyuan 3D v3.1 Rapid: $0.225 per generation; PBR adds $0.15.
• fal SAM 3D Objects: $0.02 per reconstruction.

Pricing changes. Confirm the provider page before quoting or running a batch.

Asset prompt contract

Each request describes one isolated object, not a shot: