P|AR Term

Parenting

Also known as:Parent-child relationshipChild object

Parenting makes one object or node a child of another so their transforms can be combined hierarchically.

Move an assembly together

A sculpture and its label can share a parent group. Moving that group carries both, while the label can retain its own offset. Parenting does not necessarily merge their meshes or materials. Each child can remain a separate element with its own local transform and animation.

Parenting groups transforms; it does not have to merge the meshes. Play the short loop to compare the movement.

Keeping the same place needs a choice

When an object is assigned to a different parent, the tool may preserve its world transform by recalculating its local values, or preserve its local values and let its visible position change. Both behaviours are possible. Parent rotation and scale can also affect the child in ways that are easy to miss when looking only at the child’s numeric fields.

Useful for an animated composition

A flower’s petals can move individually while the flower as a whole travels with a stem. For a Painta asset, build that relationship in the source model where appropriate, then test the exported motion. Parenting a rigid part is different from skinning a flexible surface to several joints. Choose the simpler relationship that produces the movement the artwork needs.

Related concepts and further reading

Khronos: scene nodes and transforms