mesh-primitives
v1.0.3
Published
a short list of some mesh and primitive modules
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mesh-primitives
In this context a "mesh primitive" is a plain JavaScript object which approximates a renderable 2D or 3D mesh. It is not tied to any larger frameworks or engines.
modules
format
The primitive-*
modules are tailored for rendering purposes (lighting, texturing, etc) and are typically used in prototypes and demos. Often, they are often not numerically robust.
They provide indexed meshes with counter-clockwise triangles. The returned object has the following structure:
{
positions: [ [x, y, z], [x, y, z], ... ],
cells: [ [a, b, c], [a, b, c], ... ],
uvs: [ [u, v], [u, v], ... ],
normals: [ [x, y, z], [x, y, z], ... ]
}
generic mesh modules
a.k.a. "simplicial complexes"
There are a number of other generalized mesh modules on npm. Some of them are numerically robust. These general purpose meshes are often referred to as "simplicial complexes".
{
positions: [ [x, y, z], [x, y, z], ... ], // n-dimensional
cells: [ [a, b, c], [a, b, c], ... ] // optional
}
The positions are not always indexed, and may not provide uvs
or normals
. They don't always represent 2D or 3D meshes, and the winding order might not always be consistent.
Examples:
manipulation
There are dozens of modules for manipulating these data structures on npm, such as:
For a larger list of modules, see stack.gl/packages under the "Geometry" heading.
rendering
There are a variety of modules to facilitate rendering of these 2D and 3D mesh modules.
Canvas2D
ThreeJS
stackgl
License
MIT, see LICENSE.md for details.