Celestia Forums

Will it be posible to get the red spot on jupiter to spin?

At the moment I am using 2 cloud textures oen is the one that makes the cloud basnds moov and the other is spining on a diffirent axsis sentered around the red spot, It looks OK but it could be better.

I assume you realize that the cloud bands all move at different speeds, hence requiring multiple cloud definitions to do it "right". Animated textures have been on the wish list for a very long time.

Multiple cloud definitions? Its only possible to use one cloud layer per planet correct?

Auscreely,

would you please provide an example of your .ssc definition showing how you're using two cloud textures at once?

When I declare more than one, only the first one gets shown.

Thanks!

As far as I am conserned this will be the holly grail for Celestia to achieve. A govian planets atmosphere is very complex and trying to use static cloud textures will new give any of us what we really want. I think the only way to go is to see if Chris could implemant using animated gifs as textures. That way all we would need is a real good moving gif of jupiter to do all the work.

and procedual textures?

A little code modification will do the trick

from

cloudTex->bind()

to

switch (frameNo){
case 1:{
cloudTex1->bind();
break;}
...

I have made animated star corona using random generator.

To get more then one cloud map to show I put another planit smak in the middl of jupiter then raised the cloud lyers.

I think I have 20

Ben working on it, will post it soon so everyone can see it.

now there is a good bit of thinking

Auscreely wrote:To get more then one cloud map to show I put another planit smak in the middl of jupiter then raised the cloud lyers.

I think I have 20

Ben working on it, will post it soon so everyone can see it.

This sounds like a cry for more than one cloud layer per planet How important is it for the cloud layers to be at different altitudes? Is a single cloud layer with multiple textures good enough?

--Chris

Chris,

Personally, I'd like to be able to specify different heights, if only because the various cloud layers really are at different heights. It's true that multiple textures at the same height would be very useful, so long as they're rendered in the order specified in the .SSC file. That way we could see the "lower" layers through the transparencies of the upper ones.

Also, imagine being able to float between the cloud layers of Jupiter among the intelligent balloons... Oh, sorry, that's an SF story I read.

It would be better to do seperate or dual cloud maps simply for the fact of altitude and for rotating the clouds in diferent directions such as jovians.

I am almost finished with the .ssc file fore makeing the red spot spin!

If anyone has a better picture than wat shiped with celestia post it, I want this to look its best.

As for the diffirent cloud lyers spinning at diffirent rates well I took that other cloud texture on The Celestia Hub and split it into sections.

It will be up verry soon hope everyone likes it

Selden Wrote:

Also, imagine being able to float between the cloud layers of Jupiter among the intelligent balloons... Oh, sorry, that's an SF story I read.

I just read one like that last week, was it Wheelers?

Nope, sorry. The story I was thinking of took place during the Shoemaker-Levy 9 collisions and told about what happend to some of Jupiter's inhabitents. I don't remember author or title, though.

Carl Sagan proposed "Floaters" in his book and tv series COSMOS.

Wat is this about a book?
oh well.

can anybody think of a better way to display multipul cloud textures than to put one planit inside another?

Aus',

Not yet. It sounds like you're using the only method currently available.

It sounds like Chris is seriously considering implementing multiple cloud layers in a future release, though.

O.K. if this is the only cerent way I will wate, but I hope that the next 1.2.5 pre, or full version will handle multipule cloud layrs

2010: Odyssey Two has the same idea of intelligent jellyfish/balloons floating in the atmosphere. Might be an interesting add-on...

BTW, this happens to be my first ever post on any board under Linux...