multidimensional noise output

[kylemcdonald]

theo's #1133 made me think about ways that i use noise regularly that might also be abstracted.

i would also like to see versions of noise that return multidimensional results. normally i do something like:

ofVec2 a(ofSignedNoise(t, 0), ofSignedNoise(0, t)); // 1D -> 2D
ofVec2 b(ofSignedNoise(x, 0), ofSignedNoise(0, y)); // 2D -> 2D
ofVec3 c(ofSignedNoise(t, 0, 0), ofSignedNoise(0, t, 0), ofSignedNoise(0, 0, t)); // 1D -> 3D
ofVec3 d(ofSignedNoise(x, 0, 0), ofSignedNoise(0, y, 0), ofSignedNoise(0, 0, (x + y) / 2)); // 2D -> 3D

and it would be good to spend some time making sure these are really good ways of doing it, then implement them inside some functions like ofSignedNoise2() and ofSignedNoise3() (for example).

[ofTheo]

so ofSignedNoiseVec2(float x, float y); so ofSignedNoiseVec3(float x, float y, float z);

• would we also want an extra param for time or something else?

multi octave noise could be good to look at too.

[elliotwoods]

also note #1005