jube/mapmaker — pull request #4 by SRombauts (2014-08-28 20:32:29+00:00)
Title: Fix the wrong size of the array of gradients

- s_gradients array was specified of size 12, and used with a modulus 12,
but is only filled with 8 gradient vectors !
=> if the rest of the array is filled with zeros,
this degrades the variety of the noise produced

- I believe the error comes from having converted a 3D implementation,
where 12 gradients are used (for standard implementation)
- And by the way, using a modulus 8 is much more optimzed by the compiler :)