- [Instructor] In a 3D program, a map or a texture,
or a texture map, is some image that's used to
vary some material property across the surface.
For example, we could apply an image to the base color.
Maps come in two basic varieties,
procedural and file maps.
A file map is an image stored on disc.
A procedural map is some algorithm or procedure
that synthetically generates a pattern.
Procedural maps come in 2D and 3D varieties.
A 3D procedural map has the additional advantage
of not requiring mapping coordinates on objects.
For any 2D map, procedural or file map,
you need to provide mapping coordinates or a UV layout
in order to tell the map how to wrap around a 3D surface.
But a 3D map doesn't require mapping coordinates.
If you're just rendering a 3D map in 3ds Max,
and you don't need to export to any other application
or engine, then you can actually skip the entire stage
of UV mapping or layout.
The 3D map is applied onto a surface according
to the intersection between that procedural map's pattern
in 3D space, and the volume of the object and where exactly
its polygons are.
Let's take a look at one of the more advanced
procedural textures.
It's called the Uber Noise map.
We'll create one in the Slate Material Editor window.
Right click and from the popup menu, choose Maps,
OSL, and down near at the bottom we'll see Uber Noise.
That new node is automatically selected.
Let's rename it in the parameters.
We'll call it Stucco Bump.
Connect its color output to the bump map input
on this paint material.
And in the viewport, we now see a subtle bump effect
on the wall because this material
is in realistic shading mode.
We can right click and double check
on that Show Realistic Material in Viewport.
Okay, we created the Uber Noise and connected it
to the bump map of our material.
In the following movie we will art direct
the Uber Noise parameters to get the look that we want.