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 |
Just to update on this. The 'bozo' pattern as a pigment appears to be okay with
'phase'. It does not shift when used as a 'normal' pattern. This in WinPov 3.1
anyhow. The Docs don't seem to actually list this out anywhere but gives an
idea as to what types of pattern will not work with phase. Obviously the Docs
are never 100% the answer to every question but then nothing is.
Bob
"Bob Hughes" <omn### [at] hotmail com?subject=PoV-News:> wrote in message
news:38c2b423@news.povray.org...
| Some patterns can't use 'phase', as the Windows Help says, it can't be applied
| to patterns which don't work with normal_map or slope_map.
| Look for 'phase' then check under Frequency and Phase, near the end it tells
| what can and can't do. Curiously it doesn't say 'bozo' will not work with it
| though.
|
| Bob
|
| "Chris Huff" <chr### [at] yahoocom> wrote in message
| news:chrishuff_99-97F6DD.09185105032000@news.povray.org...
| | In article <38c2410f@news.povray.org>, "Equiprawn" <equ### [at] tinetie>
| | wrote:
| |
| | > However, I had always thought that the way you got a ripling water
| | > effect was to cycle the phase modifier for the normal from 0 to 1.
| | > But when I did this (in Moray) using a bozo normal, my pattern
| | > stayed fixed, and this kind of hard line just moved about the
| | > texture. What am I doing wrong? What is the correct way to get
| | > animeted rippling water using normals?
| |
| | Have you tried other patterns? Maybe you should try using ripples or
| | waves, or maybe wrinkles. Also, you can use a phase higher than 1 to get
| | more cycles.
| |
| |
| | > And just a quick aside question, bould it be possible to use my final
| | > animated normal as input to a isosurface sphere to get rippling geometry?
| |
| | No...but you can use the same pattern in a pigment as part of an
| | isosurface function. This is untested, but should get you started:
| | #declare WaveFunc =
| | function {
| | pigment {wrinkles phase clock*3
| | color_map {
| | [0 color Black]
| | [1 color White]
| | }
| | }
| | }
| | #declare WaveDepth = 0.3;
| |
| | isosurface {
| | function {sqrt(sqr(x) + sqr(y) + sqr(z)) - 1
| | - (WaveFunc(x, y, z)*WaveDepth)
| | }
| | ...
| | }
| |
| | --
| | Chris Huff
| | e-mail: chr### [at] yahoocom
| | Web page: http://chrishuff.dhs.org/
|
|
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