Kirk Andrews wrote:

>> Yikes! How do you "turn a bitmap into a function"? The isosurface part I
>> (think) I've got an idea how to do, as well as adding the bumps. But how
>> do you turn a bitmap into an isosurface function?
> 
> You can turn any pigment into a function, so first declare an image
> pattern pigment, and then declare a function using that pigment.  This is
> my code:

Ooooo! Thanks Kirk - I'd never have thought of that myself. Of course, it
probably is there in the docs, but I'd -never- have figured it out / picked
it up myself.

I've just had an epiphany here - you've opened up so many cool ideas my head
is spinning... thanks for sharing the code. You've just stimulated some
serious creativity - this technique offers so many possibilities (for me at
least.)

Thanks again...

Regards,
-- 
Stefan

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