Use Meshy 8K Texture Resolution Without the Old hd_texture Flag

Meshy's July 2026 API changelog adds a practical migration point for teams generating higher-resolution 3D assets: use the new texture_resolution parameter instead of relying on the older hd_texture boolean.

The new parameter supports 2k, 4k, and 8k on Image to 3D, Multi-Image to 3D, Text to 3D Refine, and Retexture endpoints. Meshy says 8K base-color generation costs 15 credits, while 2K and 4K remain 10 credits. At 8K, PBR maps are generated at 4K and no emission map is produced, so pipelines that expect a full PBR bundle should check output fields before swapping defaults.

Use this as a quick API cleanup item if your scripts still send hd_texture: true. Meshy still honors it as equivalent to texture_resolution: "4k", but the new parameter is clearer, supports 8K explicitly, and makes pricing behavior easier to review before batch generation.