Sign in to follow this  
sandy_bence

what should i pass to the perlin noise function?

Recommended Posts

Whenever my noise function receives an integer, it returns 0.0. As a hack, I normalise the integer values to between 0 & 1 then pass these fractions, which seems to work. Should a 'proper' noise function behave like this? Hope that's clear... For example,
   x           f(x) , x=0...1
0.000000        0.000000
0.062500        0.039380
0.125000        0.067071
0.187500        0.083820
0.250000        0.090620
0.312500        0.088686
0.375000        0.079434
0.437500        0.064462
0.500000        0.045532
0.562500        0.024545
0.625000        0.003522
0.687500        -0.015413
0.750000        -0.030058
0.812500        -0.038149
0.875000        -0.037384
0.937500        -0.025441
1.000000        0.000000
   x            f(x), x=0...8
0.000000        0.000000
0.250000        0.086903
0.500000        0.159596
0.750000        0.122567
1.000000        0.000000
1.250000        -0.053520
1.500000        -0.012297
1.750000        0.037380
2.000000        0.000000
2.250000        -0.159418
2.500000        -0.248051
2.750000        -0.166148
3.000000        0.000000
3.250000        0.065204
3.500000        0.032702
3.750000        -0.022282
4.000000        0.000000
4.250000        0.068747
4.500000        0.066424
4.750000        0.018433
5.000000        0.000000
5.250000        0.041893
5.500000        0.062273
5.750000        0.039840
6.000000        0.000000
6.250000        0.042292
6.500000        0.112942
6.750000        0.105945
7.000000        0.000000
7.250000        -0.038905
7.500000        0.030075
7.750000        0.078379
8.000000        0.000000

Share this post


Link to post
Share on other sites
I don't think that's the way a proper noise function should behave. I'd imagine it would force things be at extremes at regular intervals, which probably wouldn't look right. Doesn't necessarly mean it's wrong and won't work, but it's probably not right.

Share this post


Link to post
Share on other sites
I had this problem too... Didn't bother fixing it though, because I didn't really care much. I realise this doesn't help at you all. [ignore]

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

Sign in to follow this