Graphics Reference
In-Depth Information
2. Next, it walks through the faces from the
toBeMerged
geometry and creates
new faces in the
merged
geometry, copying the original normal and colors.
3. As a final step, it copies the
uv
mapping from
toBeMerged
into the
uv
map-
ping of the
merged
geometry.
The result is a single geometry that, when added to the scene, looks like multiple
geometries.
See also
• The main issue with this approach is that it gets harder to color, style, anim-
ate, and transform the objects that are merged together independently. For
Three.js, after the merge, it counts as a single object. It is, however, possible
to apply specific materials to each face. We show you how to do this in the
Using separate materials for faces
recipe in
Chapter 4
,
Materials and Tex-
tures
.