Game Development Reference
In-Depth Information
Materials
Materials are instances of
THREE.Material
that define how objects appear. There are
several common material subclasses:
Constructor
Explanation
MeshBasicMaterial
It is not affected by lighting (a characteristic called
unlit
), so
this is usually used to display a solid color or a wireframe.
Two adjacent, same-colored, unlit surfaces are difficult to tell
apart.
MeshNormalMaterial
The red/green/blue values of the colors displayed by this
material are based on the magnitude of the x/y/z values of
the faces' normal vectors. (A
normal
vector is perpendicular
to a surface.) This material is unlit and useful for quickly
distinguishing the shape of an object.
MeshDepthMaterial
It is an unlit material that shows shades of gray, with
brightness depending on the distance from the camera.
It is useful when designing scenes before applying more
realistic textures.
MeshLambertMaterial
Faces are affected by lighting, but are not shiny. Specifically,
lighting is calculated per-vertex and is interpolated over faces.
It will appear black if there are no lights in the scene.
MeshPhongMaterial
Faces are affected by lighting, and can be shiny. Specifically,
lighting is calculated per-
texel
(texture pixel), so this will be
more accurate than Lambert materials when the light source is
close to the object in question. It will appear black if there are
no lights in the scene.
