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On 2/11/2016 4:28 PM, Sven Littkowski wrote:
> At the moment, I am using around 2,000 light sources for my ship inside.
> This is, to simulate a long stripe of light (5 km long) and with a white
> inside and sunset colors to the side.
>
> But I am considering to make the central cylinder along the middle axis
> much thicker, and to put an .hdr image around it, emitting light. This
> might MAYBE save me a lot of computing time.
>
> Right now, I have to try to find out, how to create such an .hdr file.
> The wise Internet will tell me...
>
IIRC POV-ray has a limit of 128 light sources.
Mike
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Am 12.02.2016 um 09:59 schrieb Mike Horvath:
> On 2/11/2016 4:28 PM, Sven Littkowski wrote:
>> At the moment, I am using around 2,000 light sources for my ship inside.
>> This is, to simulate a long stripe of light (5 km long) and with a white
>> inside and sunset colors to the side.
>>
>> But I am considering to make the central cylinder along the middle axis
>> much thicker, and to put an .hdr image around it, emitting light. This
>> might MAYBE save me a lot of computing time.
>>
>> Right now, I have to try to find out, how to create such an .hdr file.
>> The wise Internet will tell me...
>>
>
> IIRC POV-ray has a limit of 128 light sources.
IIRC you're wrong ;)
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Am 12.02.2016 um 09:35 schrieb Sven Littkowski:
> UPDATE
>
> Habitat was filled with air.
>
> Problem:
>
> while it looks acceptably good on the daytime side, the sunset side
> misses a lot of those colors, and the nighttime side is also wrong.
> Please have a try on your own and help, if you got some ideas. Thanks.
As soon as you use media, you really need to use regular light sources.
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Hi.
Do you mean the dark parts on the water surface? If so, this may been
caused by the waves.
Indeed, my air cylinder has the same side as the inner walls of the
habitat cylinder, but you cannot see those inner walls, as the landscape
cylinder and water cylinder are smaller and thus cover the habitat
cylinder inside walls all over.
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Oh gosh. And an emitting long bar would be soooo good to simulate a long
fluorescent light source. Well, I will keep it for now this way. Who
knows, maybe some smart programmer will add such possibility (media
supporting emitting surfaces) to the next version of POV-Ray..? O:)
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UPDATE
Just for now, see here a 10 meter wide four-lane road from just below
the middle axis construction, 100 m above the road, and 1.70m above the
road.
The hills range up to 100 m high.
I am not yet happy with the waves.
After that all has been fixed, I will start to work on the land texture.
Then there will be grass, and trees. Maybe some fields (though most of
the vegetables, fruits, and meat will be grown in vitro). Finally, then
I will work on the buildings.
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Attachments:
Download 'sl - colony ship ic.png' (57 KB)
Download 'sl - colony ship id.png' (104 KB)
Download 'sl - colony ship i.png' (63 KB)
Preview of image 'sl - colony ship ic.png'
Preview of image 'sl - colony ship id.png'
Preview of image 'sl - colony ship i.png'
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On 2/12/2016 2:43 PM, Sven Littkowski wrote:
> UPDATE
>
> The hills range up to 100 m high.
>
> I am not yet happy with the waves.
>
I for one cannot see enough detail in your images to comment.
They are too small.
Incidently you really should quote, in your replies, who and what you
are replying to. IMO
--
Regards
Stephen
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Am 12.02.2016 um 15:37 schrieb Sven Littkowski:
> Oh gosh. And an emitting long bar would be soooo good to simulate a long
> fluorescent light source. Well, I will keep it for now this way. Who
> knows, maybe some smart programmer will add such possibility (media
> supporting emitting surfaces) to the next version of POV-Ray..? O:)
Unlikely.
To UberPOV, maybe, as it would be a lot easier to implement in a
stochastic renderer.
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Am 12.02.2016 um 19:26 schrieb Stephen:
> Incidently you really should quote, in your replies, who and what you
> are replying to. IMO
I agree with Stephen; a good newsreader will present the thread as a
tree, but even then it is sometimes tedious to trace back what post
you're replying to. On the web interface it is virtually impossible, as
it just gives you a linear list of all the posts.
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On 2/12/2016 8:12 AM, clipka wrote:
> Am 12.02.2016 um 09:59 schrieb Mike Horvath:
>> On 2/11/2016 4:28 PM, Sven Littkowski wrote:
>>> At the moment, I am using around 2,000 light sources for my ship inside.
>>> This is, to simulate a long stripe of light (5 km long) and with a white
>>> inside and sunset colors to the side.
>>>
>>> But I am considering to make the central cylinder along the middle axis
>>> much thicker, and to put an .hdr image around it, emitting light. This
>>> might MAYBE save me a lot of computing time.
>>>
>>> Right now, I have to try to find out, how to create such an .hdr file.
>>> The wise Internet will tell me...
>>>
>>
>> IIRC POV-ray has a limit of 128 light sources.
>
> IIRC you're wrong ;)
>
Is this wiki page wrong?
http://wiki.povray.org/content/Reference:Light_Source
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