Tor Olav Kristensen wrote:
> stbenge <UN### [at] hotmailcom> wrote:
>> Those other ones were quite buggy. Odd numbers wouldn't work, the
>> function for testing the control pigment wasn't accurate, and the thing
>> was not filling a unit cube correctly.
>>
>> While testing this, also I realized that the more it stretches a
>> height_field, the slower it becomes. I wish I could make it more
>> efficient somehow.
> 
> Hi Samuel
> 
> I had a look at your macro to see if I could make it more efficient.
> Here's what I came up with:
>
> But I'm not sure if it still works like you intended.

It seems to work better than my versions.

With the changes you made, it might be actually be advantageous to use 
this instead of an isosurface for some things.

Thanks! If I release another version of hf_tools.inc, I'll include your 
version and give you proper credit :)

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