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Hi,
the attached code produces a helix, as intended. But most of the
segments are white, rather than the colours prescribed. What am I doing
wrong?
For non-biologists: This is supposed to be a schematic drawing of a
protein sequence found in those mitochondrial proteins which are
manufactured in the cytosol. All basic amino acids (blue) occur in a
particular quadrant, the remaining quadrants are hydrophobic (green) or
polar (orange). This specific arrangement is recognised by a protein
transporter which imports these proteins into the mitochondrium.
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Attachments:
Download 'helix.pov.txt' (9 KB)
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On Fri, 30 Apr 2004 17:20:48 +0200, Dr Engelbert Buxbaum
<eng### [at] hotmail com> wrote:
> Hi,
>
> the attached code produces a helix, as intended. But most of the
> segments are white, rather than the colours prescribed. What am I doing
> wrong?
>
> For non-biologists: This is supposed to be a schematic drawing of a
> protein sequence found in those mitochondrial proteins which are
> manufactured in the cytosol. All basic amino acids (blue) occur in a
> particular quadrant, the remaining quadrants are hydrophobic (green) or
> polar (orange). This specific arrangement is recognised by a protein
> transporter which imports these proteins into the mitochondrium.
You need to scale your colors down by a factor of 1/255. POV-Ray expects
color components to be in the range [0.0, 1.0]. Going beyond 1.0 makes
your objects very, very bright. The only reason some segments are yellow
or cyan is because they have one color component being zero.
---
FE
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Fredrik Eriksson wrote:
> You need to scale your colors down by a factor of 1/255. POV-Ray expects
> color components to be in the range [0.0, 1.0]. Going beyond 1.0 makes
> your objects very, very bright. The only reason some segments are yellow
> or cyan is because they have one color component being zero.
Ah, I knew I had done something wrong. Thanks for the help.
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