# The Perfect Input Image for 3D

**Track:** 3D — beginner → intermediate — Generative AI 3D — proposed
**Framework / surface:** ij8 Studio (generation → image-to-3D)
**Level:** Beginner
**Prerequisites:** From Flat Art to 3D

**In one line:** Clean background, even light, centered T-pose — so reconstruction works.

## Theory, aesthetics & inspiration

Reconstruction can only recover what the input makes legible. A clean, uncluttered background lets the model separate figure from void and read an honest silhouette; flat, even illumination describes form rather than baking dramatic shadow into the surface, where it would later fight the renderer's own lights. A centered subject in a neutral T-pose or A-pose — limbs clear of the torso — keeps later rigging unambiguous, echoing the spread-armed convention shared by life drawing and skeletal animation. The discipline is the same one photogrammetry imposes on capture: control the conditions, and the geometry follows. Cast shadows, motion blur, and busy backdrops get read as form, and become defects.