Developer reports AI agents fail at functional 3D model generation despite 2D art proficiency

According to a Hacker News thread, a developer reported that AI generation excels at elaborate 2D figurines and characters but fails to produce even simple functional 3D geometry, specifically a wedge ramp for a robot vacuum. The report indicates a capability gap between 2D aesthetic generation and 3D functional design, suggesting limitations in spatial reasoning or geometry validation within current agent systems. This constraint may affect agent applications requiring 3D asset generation.