lovr-icosphere

A small library to generate icospheres with Lua and LÖVR. Inspired by this blog post.

Note: In LÖVR 0.7.1 and on, you can use the lovr.graphics.sphere function to draw filled spheres. This library is still useful for drawing wireframe spheres or "low-poly" spheres.

Usage

local icosphere = require 'icosphere'

function lovr.load()
  local vertices, indices = icosphere(2)

  mesh = lovr.graphics.newMesh(vertices, 'triangles')
  mesh:setVertexMap(indices)
end

function lovr.draw()
  lovr.graphics.setWireframe(true)
  mesh:draw(0, 0, -1, .3, lovr.timer.getTime() * .3)
end

Documentation

vertices, indices = icosphere(n)

The library exports a single function. The function accepts a single integer parameter n representing the number of times to subdivide the sphere. Higher numbers will yield smoother geometry, but each subdivision will quadruple the number of vertices. If n is zero or nil, an the function will generate a regular convex icosahedron with 12 vertices and 20 triangles.

The list of vertices can be passed directly to lovr.graphics.newMesh, and list of indices can be used as the Mesh's vertex map.

License

MIT, see LICENSE for details.