# Root points projection [Root points](https://cgtoolbox.gitbook.io/cgtoolbox-docs/pcg-painter/tool-documentation#tool-steps) are created during brush strokes on objets, but can be projected again after their creation on visible objects, in case the objects moves.

Root points painted | Object moved | Root points re-projected / baked

This can be done using the PCGPainter parameters of any PCGPainterActor:
Use the "BakeProjectedRootPoints" to re-project and re-baked root points on visible objects, scattered points will be recreated using the new root point positions. **Projection mode:** Two projection modes are available: * "Hit normal", the root points will be projected in a direction defined by the hit normal of the existing root points when there where drawn the first time. * "World Z", the root points will be projected using a top - down direction only.

Hit normal projection

World Z projection

**RaycastLenghtMultiplier:** This parameter is used to create the projection lenght, it's defined using the brush strokes radius \* RaycastLengthMultiplier. **Show trace debug:** If on, green lines will be displayed with the lenght and orientation of the projection on each root points. **Draw time:** The amount of time in second the debug projection lines will be displayed. **Bake root points on end stroke:** If ON, force to rebake the root points on each brush strokes "mouse release". ***