Choose the shape before choosing the workflow
The right approach depends on whether your reference defines an outline, suggests a volume, or must reproduce measured surfaces.
Choose this when
Choose a relief when the artwork is mainly a silhouette, icon, or high-contrast drawing.
Trace the outline, extrude it to a deliberate thickness, and add a backing plate if separate elements would otherwise float.
The image supplies a reliable front-facing shape, but not a trustworthy full back or side profile. This approach avoids inventing unnecessary geometry.
Choose this when
Choose an image-led sculpt when the reference depicts a character, ornament, or other organic object.
Create a volumetric starting point, inspect it from every side, and edit the base, narrow features, and unsupported areas.
A generated 3d model from image may suggest the overall form, but unseen surfaces are interpretations. Treat the result as a draft for printing, not a verified replica.
Choose this when
Choose measured modeling when a part must fit, fasten, seal, or carry a load.
Take dimensions and build the critical surfaces to those measurements; use the image only as an appearance reference.
Perspective and lens distortion make a photograph unreliable for tolerances. Visual resemblance alone cannot establish whether a mechanical part will fit.