Learn the modeler LEARNEvery mode, onceA photograph of each of the editor's eleven modes and the three screens it sends you to, with what each one is for and what it refuses. LEARNA prop from a scanAn STL from a 3D scanner, in millimetres, cleaned, painted and exported as a GLB you can drop into a scene. LEARNA vase from a profileA body of revolution turned from a hand-drawn profile, edited with extrude and loop cut, mirrored and arrayed, and given a material and a texture — no external file at all. LEARNA lit cornerA second asset imported into an existing project, placed with the gizmo and its pivot, and staged in Scene mode — a light, shadows, an environment and post — then exported as one GLB with both objects as nodes. LEARNA character from a bare meshA bare, unskinned robot mesh gets an auto-rig, weight-painted skin, a posed clip, a morph with a real driver, and comes out as a GLB you can drop into a game. LEARNBorrowing a walk: retarget a clipA real Khronos sample rig's own walk cycle, auto-mapped onto case 4's character and landed as a second clip, root motion extracted along the way. LEARNAn agent beside youCase 1's own STL-to-GLB flow, redone by an agent over the real MCP tool surface on a document a person already has open — with a shared undo stack that will not let the agent take back a person's own step.