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On 12/02/2015 04:59, Mike Horvath wrote:
> Also, I was looking at some pictures of the ISS, and their solar panels
> have a coppery sheen to them. How do I mimic that? Here's my current
> solar panel texture:
>
> #local solar_panel_texture = texture
...
> finish {Glossy}
Instead of using a standard "finish" define your own with a reflection
rgb close to one for copper.
reflection {
rgb <0.722,0.451,0.200>
fresnel 0
falloff 0.000
exponent 1.000
metallic 0.500
}
--
Regards
Stephen
Post a reply to this message
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Le 15-02-12 00:22, Mike Horvath a écrit :
> On 2/11/2015 3:46 AM, Le_Forgeron wrote:
>> What is the diameter of the rotating body ? compare it to the
>> triangulated support used to attach the agridomes and to the section of
>> the six lines which are making a star around the central axis: if you
>> were able to make such big lines inside, why is the outer support meshed
>> of thinner diameter ?
>
> The radius of the habitat is close to 300 meters. The metal rods are 2
> meters thick in both cases.
>
>
>
>>>> In Babylon 5, the central axis is a support for a transportation system
>>>> (kind of metro). Presently here, it does not seems to have a purpose
>>>> and
>>>> its length (as a single segment) is unrealistic. Or I get really wrong
>>>> about the scale of the spinning colony.
>>>
>>> The central axis is actually the light source. It serves no structural
>>> function.
>>
>> Make that central light modular (segments would have to be replaced as
>> they get broken): small linear section as pavement on the cylinder. at
>> least 6 sections (but more according to the diameter) to cover the round
>> perimeter. A small variation of hue and saturation of the white "light"
>> colour along the axis might be interesting.
>>
>
> Segmenting the light source would create strange shadows on the
> interior. Not sure what you mean about the pavement and 6 sections. I
> would like to make the light source more yellow, but haven't figured out
> how. Here's the LightSys code I use:
>
> #local Lightsys_Scene_Scale = Meters * 100; // 1 = 1cm?
> #local light_lumens = 2; // float
> #local light_temp = Daylight(6100); // float in kelvin°
> #local light_color = Light_Color(light_temp, light_lumens);
If you reduce the value for Daylight() somewhat, it will get yellower,
and to a redish tint if you reduce it enough.
Try something like:
#local light_temp = Daylight(5950);
Alain
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On 2/12/2015 3:28 AM, Thomas de Groot wrote:
> I have been wondering about those six circular windows. While rotating
> do they not create a kind of blinking effect?
>
The effect is probably similar to the one experienced by farmers living
near and under wind power turbines. It is probably annoying. I could
replace the holes in the outer shell with a single cylindrical groove to
remove the effect, but it wouldn't make structural sense.
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On 2/12/2015 6:39 AM, Stephen wrote:
> On 12/02/2015 04:59, Mike Horvath wrote:
>> Also, I was looking at some pictures of the ISS, and their solar panels
>> have a coppery sheen to them. How do I mimic that? Here's my current
>> solar panel texture:
>>
>> #local solar_panel_texture = texture
>
> ...
> > finish {Glossy}
>
> Instead of using a standard "finish" define your own with a reflection
> rgb close to one for copper.
>
>
> reflection {
> rgb <0.722,0.451,0.200>
> fresnel 0
> falloff 0.000
> exponent 1.000
> metallic 0.500
> }
>
I just tried that but didn't notice much of a difference. Maybe because
I am using parallel lights and camera?
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On 2/12/2015 4:02 PM, Alain wrote:
>> Segmenting the light source would create strange shadows on the
>> interior. Not sure what you mean about the pavement and 6 sections. I
>> would like to make the light source more yellow, but haven't figured out
>> how. Here's the LightSys code I use:
>>
>> #local Lightsys_Scene_Scale = Meters * 100; // 1 = 1cm?
>> #local light_lumens = 2; // float
>> #local light_temp = Daylight(6100); // float in kelvin°
>> #local light_color = Light_Color(light_temp, light_lumens);
>
> If you reduce the value for Daylight() somewhat, it will get yellower,
> and to a redish tint if you reduce it enough.
> Try something like:
> #local light_temp = Daylight(5950);
>
>
>
> Alain
Here's the material for the central axis lamp. I would like it to look a
little dimmer and yellower. What should I change?
texture {pigment {gamma_color_adjust(light_color) transmit 1}}
interior
{
media
{
emission gamma_color_adjust(light_color)
density
{
cylindrical
color_map
{
[0 srgb 0]
[1 srgb 1]
}
scale lamp_radius
rotate x * 90
}
}
}
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On 13-2-2015 0:07, Mike Horvath wrote:
> On 2/12/2015 3:28 AM, Thomas de Groot wrote:
>> I have been wondering about those six circular windows. While rotating
>> do they not create a kind of blinking effect?
>>
>
>
> The effect is probably similar to the one experienced by farmers living
> near and under wind power turbines. It is probably annoying. I could
> replace the holes in the outer shell with a single cylindrical groove to
> remove the effect, but it wouldn't make structural sense.
If structural sense is the only thing that matters (and not a view to
the outside) why not provide smaller holes set on different circular
paths between inner and outer shells, so that they do not coincide?
--
Thomas
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Am 13.02.2015 um 00:09 schrieb Mike Horvath:
>> Instead of using a standard "finish" define your own with a reflection
>> rgb close to one for copper.
>>
>>
>> reflection {
>> rgb <0.722,0.451,0.200>
>> fresnel 0
>> falloff 0.000
>> exponent 1.000
>> metallic 0.500
>> }
>>
>
>
> I just tried that but didn't notice much of a difference. Maybe because
> I am using parallel lights and camera?
You need something to reflect.
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On 13/02/2015 11:00, clipka wrote:
> Am 13.02.2015 um 00:09 schrieb Mike Horvath:
>
>>> Instead of using a standard "finish" define your own with a reflection
>>> rgb close to one for copper.
>>>
>>>
>>> reflection {
>>> rgb <0.722,0.451,0.200>
>>> fresnel 0
>>> falloff 0.000
>>> exponent 1.000
>>> metallic 0.500
>>> }
>>>
>>
>>
>> I just tried that but didn't notice much of a difference. Maybe because
>> I am using parallel lights and camera?
>
> You need something to reflect.
>
Even a simple sky sphere will do.
Here is the one I use to start with.
#declare Shadow_Clouds_Top =
pigment {
color rgbft <0.196,0.600,0.800,0.000,0.000>
}
#declare Shadow_Clouds_Mid =
pigment {
bozo
color_map {
[0.000 rgbft <0.850,0.850,0.850,0.000,0.000>]
[0.100 rgbft <0.750,0.750,0.750,0.000,0.000>]
[0.500 rgbft <1.000,1.000,1.000,0.000,1.000>]
}
rotate <0.0,0.0,90.000>
rotate <180.000,0.0,0.0>
scale <1.000,6.000,6.000>
rotate <-180.000,0.000,-90.000>
turbulence <0.650,0.650,0.650>
octaves 6
lambda 2.000
omega 0.700
}
#declare Shadow_Clouds_Bot =
pigment {
bozo
color_map {
[0.000 rgbft <0.850,0.850,0.850,0.000,0.000>]
[0.100 rgbft <0.750,0.750,0.750,0.000,0.000>]
[0.500 rgbft <1.000,1.000,1.000,0.000,1.000>]
}
rotate <0.0,0.0,90.000>
rotate <180.000,0.0,0.0>
scale <1.000,6.000,6.000>
rotate <-180.000,0.000,-90.000>
translate <0.000,-0.150,0.000>
turbulence <0.650,0.650,0.650>
octaves 6
lambda 2.000
omega 0.700
}
#declare SkySphere1 =
sky_sphere {
pigment{ Shadow_Clouds_Top }
pigment{ Shadow_Clouds_Mid }
pigment{ Shadow_Clouds_Bot }
}
--
Regards
Stephen
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On 2/13/2015 6:21 AM, Stephen wrote:
> Even a simple sky sphere will do.
> Here is the one I use to start with.
>
>
> #declare Shadow_Clouds_Top =
> pigment {
> color rgbft <0.196,0.600,0.800,0.000,0.000>
> }
>
> #declare Shadow_Clouds_Mid =
> pigment {
> bozo
> color_map {
> [0.000 rgbft <0.850,0.850,0.850,0.000,0.000>]
> [0.100 rgbft <0.750,0.750,0.750,0.000,0.000>]
> [0.500 rgbft <1.000,1.000,1.000,0.000,1.000>]
> }
>
> rotate <0.0,0.0,90.000>
> rotate <180.000,0.0,0.0>
> scale <1.000,6.000,6.000>
> rotate <-180.000,0.000,-90.000>
> turbulence <0.650,0.650,0.650>
> octaves 6
> lambda 2.000
> omega 0.700
> }
>
> #declare Shadow_Clouds_Bot =
> pigment {
> bozo
> color_map {
> [0.000 rgbft <0.850,0.850,0.850,0.000,0.000>]
> [0.100 rgbft <0.750,0.750,0.750,0.000,0.000>]
> [0.500 rgbft <1.000,1.000,1.000,0.000,1.000>]
> }
>
> rotate <0.0,0.0,90.000>
> rotate <180.000,0.0,0.0>
> scale <1.000,6.000,6.000>
> rotate <-180.000,0.000,-90.000>
> translate <0.000,-0.150,0.000>
> turbulence <0.650,0.650,0.650>
> octaves 6
> lambda 2.000
> omega 0.700
> }
>
>
> #declare SkySphere1 =
> sky_sphere {
> pigment{ Shadow_Clouds_Top }
> pigment{ Shadow_Clouds_Mid }
> pigment{ Shadow_Clouds_Bot }
>
> }
>
>
Here's my render with your skysphere. I still don't see any copper tint
to the solar panels. It's not a big deal though.
Post a reply to this message
Attachments:
Download 'gh_scene_spinner_cutaway_15.png' (100 KB)
Preview of image 'gh_scene_spinner_cutaway_15.png'
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On 2/13/2015 3:20 AM, Thomas de Groot wrote:
> On 13-2-2015 0:07, Mike Horvath wrote:
>> On 2/12/2015 3:28 AM, Thomas de Groot wrote:
>>> I have been wondering about those six circular windows. While rotating
>>> do they not create a kind of blinking effect?
>>>
>>
>>
>> The effect is probably similar to the one experienced by farmers living
>> near and under wind power turbines. It is probably annoying. I could
>> replace the holes in the outer shell with a single cylindrical groove to
>> remove the effect, but it wouldn't make structural sense.
>
> If structural sense is the only thing that matters (and not a view to
> the outside) why not provide smaller holes set on different circular
> paths between inner and outer shells, so that they do not coincide?
>
I'm not sure I understand. Having holes of any kind would still produce
blinking I think.
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