Loading ...
Loading ...
Loading ...
Usage
Use Weld 3D when issues occur with the geometry. Don’t use it everywhere just because it’s
there, as it influences render time.
Weld 3D is intended to be used as a mesh robustness tool and not as a mesh editing tool to
merge vertices. If you can see the gap between the vertices you want to weld in the 3D view,
you are probably misusing Weld 3D. Unexpected things may happen when you do this; do so
at your own peril.
Limitations
Setting the tolerance too large can cause edges/faces to collapse to points.
If your model has detail distributed over several orders of scale, picking a tolerance value can
be hard or impossible.
For example, suppose you have a model of the International Space Station and there are lots
of big polygons and lots of really tiny polygons. If you set the tolerance too large, small
polygons that shouldn’t merge do; if you set the tolerance too small, some large polygons
won’t be merged.
Vertices that are far from the origin can fail to merge correctly. This is because bignumber +
epsilon can exactly equal bignumber in float math. This is one reason it may be best to merge
in local coordinates and not in world coordinates.
Sometimes Weld 3D-ing a mesh can make things worse. Take Fusion’s cone, for instance. The
top vertex of the cone is currently duplicated for each adjoining face, and they all have
different normals. If you weld the cone, the top vertices merge and only have one normal,
making the lighting look weird.
Weld 3D is not multithreaded.
Warning
Do not misuse Weld 3D to simplify (reduce the polygon count of) meshes. It is designed to
efficiently weld vertices that differ by only very small values, like a 0.001 distance.
Common Controls
Settings Tab
The Settings tab in the Inspector is duplicated in other 3D nodes. These common controls are
described in detail at the end of this chapter in “The Common Controls” section.
Chapter 893D Nodes 1702
Loading ...
Loading ...
Loading ...