How It Works in Model Gap Fix

When the game bakes a 2D sprite into a 3D item model, it walks the outline of the opaque pixels and generates thin side faces around the shape. Model Gap Fix slightly lengthens each of these side strips along its own axis so that neighbouring strips overlap at the corners instead of leaving a sub-pixel gap.

The adjustment is tiny (a fraction of a pixel) and does not change an item's overall size, texture, or shape - it only closes the seams. Because it hooks the model-baking step, the fix is computed once when models load and has no per-frame cost.