Celestia Forums

Hi

I am fairly new to this forum and I would just like you to go easy on me. I don't know wheather I have posted thias in the right place but it is my 2nd post.

Anyways I have a little problem. I have created a solar system around the star 27 Psc. It has 1 planet with rings. The planet is called Mimos. However when I give Mimos a ring texture it acts weird.

1) I used someone elses ring texture and applied it to Mimos.
RESULT: It worked!!!!!

2) Using Adobe Photoshop CS3, I created my own ring texture from a tutorial and applied the texture to Mimos.
RESULT: The ring showed up but the planet texture was as black as space

Plz WTH am I doin wrong. I can create a solar system without ringed planets with perfection but with ringed planets it is a nightmare. If you help me then I will CREATE a solar system WITHOUT ringed planets for you AND name it after you AND give it to you via upload. Note can only do 4 planets and 4 moons at maximum. That is all I know how to create.....So Far

Thanks From Mr Noob Now Nicknamed Noobus

What image format do you use? No .JPG in this ring's case.

You could post the (relevant parts of) your SSC inline on the forum: paste it between a code markup pair (see the 'code' style button above the post window?) so it stands out. Then we can check that you didn't 'break' any other part of the SSC.

Ring textures are most efficiently made as size 1 ?— 2^N pixels, because while all textures must have power of two dimensions, the ring texture is simply uniform with azimuth about the ring. If you saved it as something huge like 2048 ?— 2048, you might have filled your graphics card memory and there's no room for the planet texture, though I would have thought the planet should have been plain white in this case.

A general tip: it a planet has a texture that look wrong, toggle Celestia between full screen and windowed, or resize the window. I find this forces Celestia to 'refresh' textures and they sometimes come back.

Spiff.

hi what size is your ring map
for comparison here is my Saturn ring
http://www.celestiamotherlode.net/creat ... nsRing.zip
it is a 1024x2.png

and your ssc looks fine so the prob is mostliky the ring-map size
if this dose not help can you post a screen shot or two

My ring size is 512x32

... and you still don't say whether screen resize fixed the problem.

Then you are looking at a graphics card bug. To save Selden the job: you should ensure your computer has the latest graphics drivers appropriate to your vendor installed.

By the way, there is a single error in the SSCs, but due to System Maker V1.4 Beta: Albedo 25 is wrong, as albedo can only be between 0 and 1: 0 is totally absorbant, 1 is totally reflective. However, it only controls how bright a planet appears when it is far away and star like in appearance. It is not responsible for your black planet problem.

Spiff.