Night sky for iray?

Super cheese sandwich

Do you know any good night sky for iray?

 

Thanks!

nonesuch00

Haven't tried it yet with a disc set up to be extremely high emissive but Sun & Sky set to the correct time. You can texture map it with the moon. You'd still lack stars though but you could do the same for them but put them on a retangle with just enough emmisive to like the stars not actually emitting enough light to have a noticable influence on the light as the sun, moon, and earthly sources overwhlem those.

If you want HRDIs then search Google or Bing for HRDI Night Sky, there are some, 2 or three of European cities at night (so no skyline) and one or two of a South African suburb at night.

Here is a link to a gallery I made each each of the 24 hours in a day on a Summer Solstice with iRay Sun & Sky so you needn't guess.

http://www.daz3d.com/gallery/#galleries/967096/

 

Deke

I hav taken a regular sky dome, and then changed the default image for a still of a starfield. It works sometims quite well. The higher res the the image the better. Problems can be in the apparent tiling that the program does...repeating some features of the still image in the dome.

mjc1016

Deke said:

I hav taken a regular sky dome, and then changed the default image for a still of a starfield. It works sometims quite well. The higher res the the image the better. Problems can be in the apparent tiling that the program does...repeating some features of the still image in the dome.

Many domes are set up to take an image that is twice as long as it is high without tiling.

nonesuch00

nonesuch00 said:

Haven't tried it yet with a disc set up to be extremely high emissive but Sun & Sky set to the correct time. You can texture map it with the moon. You'd still lack stars though but you could do the same for them but put them on a retangle with just enough emmisive to like the stars not actually emitting enough light to have a noticable influence on the light as the sun, moon, and earthly sources overwhlem those.

If you want HRDIs then search Google or Bing for HRDI Night Sky, there are some, 2 or three of European cities at night (so no skyline) and one or two of a South African suburb at night.

Here is a link to a gallery I made each each of the 24 hours in a day on a Summer Solstice with iRay Sun & Sky so you needn't guess.

http://www.daz3d.com/gallery/#galleries/967096/

 

Actually I think I could use LAMH instancing to scatter a bunch of emmisive disc stars on a plane randomly rander than create an image manually with an image editor. 

Jimbow

nonesuch00 said:

 

Actually I think I could use LAMH instancing to scatter a bunch of emmisive disc stars on a plane randomly rander than create an image manually with an image editor. 

Why not just have them scattered on a very big sphere and turn off the sphere's visibility? Do you have any of the fancy instance scripts? I imagine actual star meshes (they could just be flat discs) would render very, very fast, and you could control their colour temperature and intensity on the fly.

Jimbow

Come to think of it, you could potentially mix 3D stars in the scene with a sky HDRI that's stopped down.

nonesuch00

Jimbow said:

nonesuch00 said:

 

Actually I think I could use LAMH instancing to scatter a bunch of emmisive disc stars on a plane randomly rander than create an image manually with an image editor. 

Why not just have them scattered on a very big sphere and turn off the sphere's visibility? Do you have any of the fancy instance scripts? I imagine actual star meshes (they could just be flat discs) would render very, very fast, and you could control their colour temperature and intensity on the fly.

That's even better thanks. I will look into it.