Product 3D modelling: geometry, inputs and files

3D modelling creates an object’s digital geometry. Rendering turns it into an image; animation shows changes over time. Requirements follow the use: a product close-up, a whole-scene view and an editable handover may need different detail levels.

What inputs can be used?

Useful inputs include dimensioned drawings, CAD files, photographs and samples. References should show all important sides. A photograph does not verify hidden dimensions. Agree missing information, especially when the model must represent a specific product.

Geometry, detail and materials

Check proportions and shape first, then visible details and materials for the planned views. Specify internals and moving parts separately if animation needs them. Unnecessary complexity can make later use harder.

Handover and further use

Agree file format, organisation and whether delivery includes the model, renders or both. A presentation model is not automatically production documentation or ready for 3D printing. Product and fencing examples show geometry used for visualisation.

Project checklist

• Record dimension sources and assumptions for missing data.
• Review geometry at the close-up required for final output.
• Open the delivered model in the agreed software.