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why do maps get so washed out in pov?
the next image will show true MW colors
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true MW colors
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"alphaQuad" <alp### [at] earthlink net> schreef in bericht
news:web.47eb310bda135a0980c7eb9a0@news.povray.org...
> why do maps get so washed out in pov?
>
Try a higher diffuse value (default is 6) in the finish block. I typically
and systematically use diffuse 0.8 every time I use image maps.
Thomas
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"Thomas de Groot" <t.d### [at] inter nlDOTnet> schreef in bericht
news:47eb50a9$1@news.povray.org...
>
> ....(default is 6) ....
Default is 0.6 of course!
Thomas
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alphaQuad wrote:
> why do maps get so washed out in pov?
It may be related to assumed_gamma.
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I have had similar issues in the past, and it is related to gamma correction, as Warp
mentioned.
Read through this thread:
http://news.povray.org/povray.general/thread/%3Cvp9bd1p330mntk3k9dhlfch4csv2215j12%404ax.com%3E/
Then get the macro here:
http://news.povray.org/povray.text.scene-files/thread/%3Ce9e0e19dor0jq2boh8l45o73e8ulm1upjq%404ax.com%3E/
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> why do maps get so washed out in pov?
As others have said, it is due to the gamma. Basically, POV works
internally in linear colour space, then applies gamma correction to the
output before you see it. The problem is that POV treats image maps as
being in linear colour space, but usually they are not.
To fix this, you need to adjust the gamma of your input image map to
compensate in an image editor, usually by a factor of 2.4 (can be either 2.4
or 1/2.4 depending on your program, but you must make the image look
darker).
It would be really helpful if POV had a gamma keyword inside the image map
function, where you could specify if the input image has a non-unity gamma
correction already applied, then POV could undo that before feeding it into
the rendering algorithm.
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read thru them, but conclude that my radiosity file is the color preservation
that works here. nothing else I tried did as well. gamma is at 1.0 as
recommended.
Tiangulation.inc is updated. If you've adopted, replace in include dir.
Had to find patience due to frustration this took more than 3 days.
At least this is the way I'd do it. 1.5 minute render with true color by
radiosity.
Megapov needed for date function. So set your timezone (bkwards) in
megatime.inc.
6 = central. Timezone feature and star-search-set-cam-view still to do.
Hope someone can fix the atmosphere; it is total white now. (planets.inc)
Needs http://home.earthlink.net/~gamma-quadrant/pl-maps.zip
(small) 2.7 meg
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with nice shiny spacecraft you'd want the back stars, didnt think of that. was
thinking of performance.
ok next, the zip and a chance for others to run iwth it..
May I Suggest cool navigation features and a spikey star object rather than
spheres, make features.
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Hope someone can fix the atmosphere; it is total white now. (planets.inc)
Needs http://home.earthlink.net/~gamma-quadrant/pl-maps.zip
(small) 2.7 meg
(report bugs and corrections)
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