New 3D nebula

[jll]

Hello,

Although Fridger and Toti did a fantastic work on the galaxies (many many thanks ), nebula remain complex to build .

Here is my small contribution :

- A new 3DS model of Helix with visible inner texture
http://j.leboutet.free.fr/celestia/models/HelixModelV2.zip
You need to download the original zip and replace the model with the new one.




- M57 The Ring Nebula http://j.leboutet.free.fr/celestia/models/NGC6720-M57-RingNebula-3D.zip

Standard view


3/4 view


inner view


- Others to come
RCW79


Cat's Eyes


Bye JLL

[bh]

Cor! looks stunning.

regards...bh.

[ElChristou]

Seems pretty good indeed... Tx for the work.

[ANDREA]

Sorry, but opening M57 file WinZip gives me this error:
"It does not appear to be a valid archive".
Someone has installed it?
Thank you for the info.
Bye

Andrea

[jll]

Damned it seems a problem occurs in my upload ...

I correct the problem, ... and test download
All is fine now.
Thanks for advice.

Abroad of this problem I have a little question for Mac owners :
Is there a problem if zip archive or file names contain spaces ?

Have fun
JLL

[alphap1us]

Hi JLL,
It should not break anyhting to include spaces in a file name on Macs or Linux, however you should always avoid this just to be safe. Use a dash or an underscore instead.

Cheers,
Joe

[ANDREA]

Damned it seems a problem occurs in my upload ...
I correct the problem, ... and test download
All is fine now. Thanks for advice. Have fun JLL

Hello Jll, thank you, now it's OK.
A very nice Extra!
Bye

Andrea

[sundog]

Thanks for your work Jll, I haven't tryed it out yet, but I will.

That second pic looks gorgeous.



cheers

sundog

[darthyip]

Jll

I get a strange effect on the outer disc part when rotating. If I'm looking at it from the side at an angle, part of the texture appears/disappears (depending on which way I'm rotating) in strips. It seems to only happen where the bubble part is behind the disc. I hope this makes sense, I don't know the proper names of features. I'd upload a pic, but I don't have a website to link to.

It's still a great model though, improved over the last one. M57 is my favorite and I'm looking forward to the cat's eyes. Great work.

[selden]

Darthyip,

Unfortunately, the effect you see is due to a deficiency in how Celestia draws a Nebula object. The facets are drawn in the order they're defined in the model. They are not depth sorted.

[jll]

May be also that the structure that I used to build my model does not facilitate the representation in celestia :


The inner plate gives some side effects when we move around.
I dont know if this structure is realistic ?

I made another 3D model of NGC3132 (based on killeen's add-on) without this plate. http://j.leboutet.free.fr/celestia/models/NGC3132_EightBurstNebula_3D.zip

Do you think it's better without the plate ?







JLL

[darthyip]

I figured it had to do something with Celestia's rendering.

I still get the same effect with the new NGC 3132 you provided. Not sure what's still causing it. I say stick with what you were doing before. It's only a very minor quibble, and your nebulas look amazing to begin with. Keep up the good work.