Atmospheres with Multiple Star Lighting
Posted: 18.11.2005, 01:28
Hello all. I've got a question about a possible development issue.
Basically what I'm trying to do is create an add-on of a binary system with an earth-like planet lit by 2 G type stars (ie Sol/Lucifer from 2010: Odyssey 2). The problem I'm having is while the clouds and surface of the planet are perfectly lit by the two stars, the atmosphere is only rendered for one star.
Example 1:
*Earth2 and Saturn 2 are backlit by the other star, but the atmosphere effects are only rendered from the star shown in this image.
Example 2:
*The sky is black on one side and blue on the other, even though both sides are about equally illuminated.
Example 3:
*This example shows the atmosphere effects from the surface of the planet. Even though both stars have about the same app mag from the surface, only one side gets the sunset effect (top). In the lower-left frame, everything except the sky is illuminated. On the other side of the planet (lower-right) the sky is properly lit.
So my question is, is it possible to change the code to allow simultaneous atmosphere effects for more than one star at a time?
Note: In my test system, I placed Earth2 in an orbit around Saturn2, which orbits one of the two binary stars (HB1). The other binary (HB2) is 3x as far from Saturn2 as HB1, but is 3x more luminous so (in my limited understanding of astronomy) both planets should get about equal lighting when in between the two stars. Also, all images were captured directly with no modifications.
Basically what I'm trying to do is create an add-on of a binary system with an earth-like planet lit by 2 G type stars (ie Sol/Lucifer from 2010: Odyssey 2). The problem I'm having is while the clouds and surface of the planet are perfectly lit by the two stars, the atmosphere is only rendered for one star.
Example 1:
*Earth2 and Saturn 2 are backlit by the other star, but the atmosphere effects are only rendered from the star shown in this image.
Example 2:
*The sky is black on one side and blue on the other, even though both sides are about equally illuminated.
Example 3:
*This example shows the atmosphere effects from the surface of the planet. Even though both stars have about the same app mag from the surface, only one side gets the sunset effect (top). In the lower-left frame, everything except the sky is illuminated. On the other side of the planet (lower-right) the sky is properly lit.
So my question is, is it possible to change the code to allow simultaneous atmosphere effects for more than one star at a time?
Note: In my test system, I placed Earth2 in an orbit around Saturn2, which orbits one of the two binary stars (HB1). The other binary (HB2) is 3x as far from Saturn2 as HB1, but is 3x more luminous so (in my limited understanding of astronomy) both planets should get about equal lighting when in between the two stars. Also, all images were captured directly with no modifications.
