Atmosphere Physics

[CCalpha]

A simple atmosphere system would be nice, When I send asteroids to earth that skim through the atmosphere with a periapsis at 10 Km high I'd like to see the atmosphere catch it and watch it as it impacts, burns up or skips out. At the moment you can put something in orbit a couple of meters off earth surface and it will act as though it were in a vacuum.

[Greenleaf]

A simple atmosphere system would be nice, When I send asteroids to earth that skim through the atmosphere with a periapsis at 10 Km high I'd like to see the atmosphere catch it and watch it as it impacts, burns up or skips out. At the moment you can put something in orbit a couple of meters off earth surface and it will act as though it were in a vacuum.

That is certainly true and it is on the short term todo list. It has not been highly prioritized before because most of the play-time is on a scale where a 30 km atmosphere will not be very noticeable anyway, but, as you point out, there are certainly scenarios where it breaks the realism in an obvious way.

[Angel Armageddon]

A simple atmosphere system would be nice, When I send asteroids to earth that skim through the atmosphere with a periapsis at 10 Km high I'd like to see the atmosphere catch it and watch it as it impacts, burns up or skips out. At the moment you can put something in orbit a couple of meters off earth surface and it will act as though it were in a vacuum.

That is certainly true and it is on the short term todo list. It has not been highly prioritized before because most of the play-time is on a scale where a 30 km atmosphere will not be very noticeable anyway, but, as you point out, there are certainly scenarios where it breaks the realism in an obvious way.

How will SPH behave?

[Greenleaf]

>How will SPH behave?


In an unrelated way. We have no plans to model a planetary atmosphere using SPH.

[Angel Armageddon]

Not for the atmosphere but for planets/stars.
But it would be nice to see the atmosphere of a planet get suck off the planet by a very close moon or by a large very fast passing planet.

[Pizzaeater1K]

Not for the atmosphere but for planets/stars.
But it would be nice to see the atmosphere of a planet get suck off the planet by a very close moon or by a large very fast passing planet.

I agree. It would also be nice to watch the atmosphere get thicker in one spot or just rotate around the planet.

[crashman1390]

Not for the atmosphere but for planets/stars.
But it would be nice to see the atmosphere of a planet get suck off the planet by a very close moon or by a large very fast passing planet.

Well, if a planet with an atmosphere was near a star, it would have it's atmosphere get blown off by solar winds, or be super heated.

[Angel Armageddon]

Not for the atmosphere but for planets/stars.
But it would be nice to see the atmosphere of a planet get suck off the planet by a very close moon or by a large very fast passing planet.

Well, if a planet with an atmosphere was near a star, it would have it's atmosphere get blown off by solar winds, or be super heated.

Yes, that would be nice.

[Gordon Freeman]

Doesn't that already happen?

[Physics_Hacker]

Doesn't that already happen?

No, water gets blown off and then closer the planet gets blown apart but no, atmosphere doesn't get blown off planets, currently.