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MoonGLMATH: Math library for MoonGL

MoonGLMATH is a Lua math library for MoonGL.

It runs on GNU/Linux and on Windows (MSYS2/MinGW-w64) and requires Lua (>=5.3).

Authored by: Stefano Trettel

License

MIT/X11 license (same as Lua). See LICENSE.

Documentation

See the Reference Manual.

Getting and installing

Setup the build environment as described here, then:

$ git clone https://github.com/stetre/moonglmath
$ cd moonglmath
moonglmath$ make
moonglmath$ make install # or 'sudo make install' (Ubuntu)

Example

The example below creates a few vectors and matrices and performs some operations on them, just to give a taste of MoonGLMATH.

Other examples can be found in the examples/ directory contained in the release package.

-- Script: hello.lua

glmath = require("moonglmath")

-- create a few size-3 vectors and 3x3 matrices:
u = glmath.vec3(2.3, 1.5, math.pi)
v = glmath.vec3(1, 2, 3)
A = glmath.mat3(3, 1, 5, 2, 8, 7, 9, 4, 6)
I = glmath.mat3() -- identity

s = u * v    -- dot product
w = u % v    -- cross product
s = A:det()  -- determinant
B = A^-1     -- matrix inverse
B = A:inv()  -- matrix inverse
A = B * A    -- matrix multiplication
I = A^-1 * A -- matrix multiplication
w = A * v    -- matrix*vector

print(u[1], u[2], u[3]) -- vector components
print(u.x, u.y, u.z) -- position syntactic sugar
print(u.r, u.g, u.b) -- color syntactic sugar
print(u.s, u.t, u.p) -- texture syntactic sugar

The script can be executed at the shell prompt with the standard Lua interpreter: