Reference images

Model on top of a photo, sketch, or blueprint.

A reference image is a picture — a photo, hand sketch, or dimensioned drawing — placed on a plane in the scene to model against. Scale it to real size (directly, or by calibrating a known length), position and fade it with opacity, then trace it in 2D with the Sketch tool. It is an aid only: it never exports and is not part of the model.

1. Open the Reference panel from the left sidebar (click its icon) and add an image (or drag one onto the viewport).
2. Set its real-world width, or use Set scale to calibrate it against a known dimension.
3. Adjust opacity, position, and rotation so it sits under your model; lock it to avoid nudging.
4. Switch to 2D view on its plane and trace it with the Sketch tool.