Sky radiance model

Hi Everyone,

I have a radiance distribution model over the sky dome, is there a way to
use my model to generate the sky not using gensky or gendaylit?

Cheers,

Ehsan

Hi Ehsan,

There are ways to do this, but you need to be a little more specific about what data you are starting from. Otherwise, it's difficult to offer direction.

Best,
-Greg

···

From: "Ehsan M.Vazifeh" <[email protected]>
Date: January 31, 2014 2:27:23 AM PST

Hi Everyone,

I have a radiance distribution model over the sky dome, is there a way to use my model to generate the sky not using gensky or gendaylit?

Cheers,

Ehsan

Dear Greg,

I developed a model which applies angular distance between any point on the
sky and Sun disc to calculate radiance fraction and then having radiance
distribution and horizontal diffuse irradiation, radiance or even luminance
of each point under clear sky condition can be calculated! I hope this
information can be useful:)

Cheers,

Ehsan

···

On Feb 1, 2014 2:47 AM, "Greg Ward" <[email protected]> wrote:

Hi Ehsan,

There are ways to do this, but you need to be a little more specific about
what data you are starting from. Otherwise, it's difficult to offer
direction.

Best,
-Greg

*From: *"Ehsan M.Vazifeh" <[email protected]>

*Date: *January 31, 2014 2:27:23 AM PST

Hi Everyone,

I have a radiance distribution model over the sky dome, is there a way to
use my model to generate the sky not using gensky or gendaylit?

Cheers,

Ehsan

_______________________________________________
Radiance-general mailing list
[email protected]
http://www.radiance-online.org/mailman/listinfo/radiance-general

Note:
By radiance distribution and radiance fraction I meant ratio of radiance of
each patch over sum of radiance of all patches.

Best,
Ehsan

···

On Feb 1, 2014 4:00 AM, "Ehsan M.Vazifeh" <[email protected]> wrote:

Dear Greg,

I developed a model which applies angular distance between any point on
the sky and Sun disc to calculate radiance fraction and then having
radiance distribution and horizontal diffuse irradiation, radiance or even
luminance of each point under clear sky condition can be calculated! I hope
this information can be useful:)

Cheers,

Ehsan
On Feb 1, 2014 2:47 AM, "Greg Ward" <[email protected]> wrote:

Hi Ehsan,

There are ways to do this, but you need to be a little more specific
about what data you are starting from. Otherwise, it's difficult to offer
direction.

Best,
-Greg

*From: *"Ehsan M.Vazifeh" <[email protected]>

*Date: *January 31, 2014 2:27:23 AM PST

Hi Everyone,

I have a radiance distribution model over the sky dome, is there a way to
use my model to generate the sky not using gensky or gendaylit?

Cheers,

Ehsan

_______________________________________________
Radiance-general mailing list
[email protected]
http://www.radiance-online.org/mailman/listinfo/radiance-general

Well, you can follow the example in skybright.cal to translate your equations to something Radiance can use directly. The documentation is in:

  http://radsite.lbl.gov/radiance/refer/filefmts.pdf

And there are tutorial chapters in "Rendering with Radiance" if you have a copy of that.

-Greg

···

From: "Ehsan M.Vazifeh" <[email protected]>
Date: February 1, 2014 1:42:42 PM PST

Note:
By radiance distribution and radiance fraction I meant ratio of radiance of each patch over sum of radiance of all patches.

Best,
Ehsan

On Feb 1, 2014 4:00 AM, "Ehsan M.Vazifeh" <[email protected]> wrote:
Dear Greg,

I developed a model which applies angular distance between any point on the sky and Sun disc to calculate radiance fraction and then having radiance distribution and horizontal diffuse irradiation, radiance or even luminance of each point under clear sky condition can be calculated! I hope this information can be useful:)

Cheers,

Ehsan

On Feb 1, 2014 2:47 AM, "Greg Ward" <[email protected]> wrote:
Hi Ehsan,

There are ways to do this, but you need to be a little more specific about what data you are starting from. Otherwise, it's difficult to offer direction.

Best,
-Greg

From: "Ehsan M.Vazifeh" <[email protected]>
Date: January 31, 2014 2:27:23 AM PST

Hi Everyone,

I have a radiance distribution model over the sky dome, is there a way to use my model to generate the sky not using gensky or gendaylit?

Cheers,

Ehsan

_______________________________________________
Radiance-general mailing list
[email protected]
http://www.radiance-online.org/mailman/listinfo/radiance-general

_______________________________________________
Radiance-general mailing list
[email protected]
http://www.radiance-online.org/mailman/listinfo/radiance-general

Dear Greg,

Thank you for your advice. I'll do my best.

Cheers,

Ehsan

···

On Feb 2, 2014 8:54 PM, "Greg Ward" <[email protected]> wrote:

Well, you can follow the example in skybright.cal to translate your
equations to something Radiance can use directly. The documentation is in:

http://radsite.lbl.gov/radiance/refer/filefmts.pdf

And there are tutorial chapters in "Rendering with Radiance" if you have a
copy of that.

-Greg

*From: *"Ehsan M.Vazifeh" <[email protected]>

*Date: *February 1, 2014 1:42:42 PM PST

Note:
By radiance distribution and radiance fraction I meant ratio of radiance
of each patch over sum of radiance of all patches.

Best,
Ehsan
On Feb 1, 2014 4:00 AM, "Ehsan M.Vazifeh" <[email protected]> wrote:

Dear Greg,

I developed a model which applies angular distance between any point on
the sky and Sun disc to calculate radiance fraction and then having
radiance distribution and horizontal diffuse irradiation, radiance or even
luminance of each point under clear sky condition can be calculated! I hope
this information can be useful:)

Cheers,

Ehsan
On Feb 1, 2014 2:47 AM, "Greg Ward" <[email protected]> wrote:

Hi Ehsan,

There are ways to do this, but you need to be a little more specific
about what data you are starting from. Otherwise, it's difficult to offer
direction.

Best,
-Greg

*From: *"Ehsan M.Vazifeh" <[email protected]>

*Date: *January 31, 2014 2:27:23 AM PST

Hi Everyone,

I have a radiance distribution model over the sky dome, is there a way
to use my model to generate the sky not using gensky or gendaylit?

Cheers,

Ehsan

_______________________________________________
Radiance-general mailing list
[email protected]
http://www.radiance-online.org/mailman/listinfo/radiance-general

_______________________________________________

Radiance-general mailing list
[email protected]
http://www.radiance-online.org/mailman/listinfo/radiance-general

_______________________________________________
Radiance-general mailing list
[email protected]
http://www.radiance-online.org/mailman/listinfo/radiance-general