Posts by Buzz

by Buzz
21.09.2009, 20:17
Forum: Textures
Topic: ESO Milky Way panorama
Replies: 3
Views: 4964

Re: ESO Milky Way panorama

@Fridger: you're right, it's only useful for displaying a view of the Milky Way from the surroundings of the Solar system. And of course I agree that the ultimate goal should be to render everything in 3D in a way that resembles the ESO picture. Until we have the ability to add dark/reflection nebul...
by Buzz
20.09.2009, 17:46
Forum: Textures
Topic: ESO Milky Way panorama
Replies: 3
Views: 4964

ESO Milky Way panorama

ESO has published a beautiful 6000 x 3000 pixel panorama of the Milky Way, made by Serge Brunier with a regular digital camera ( http://www.sergebrunier.com/gallerie/pleinciel/index-eng.html , this page also includes a link to an online full screen 3D interactive panorama). It can be downloaded here...
by Buzz
20.09.2008, 19:19
Forum: Celestia Users
Topic: Mitaka Version 1.0 was released
Replies: 149
Views: 100640

Re: Mitaka Version 1.0 was released

There is a new version: I just downloaded the 1.2.0 beta from this page: http://www.orihalcon.jp/mitakaplus/index_e.html#download.
by Buzz
25.02.2008, 21:10
Forum: Development
Topic: Particle System / Volumetric fills / Clouds
Replies: 18
Views: 14558

Re: Particle System / Volumetric fills / Clouds

I see, good to know. This of course makes it impossible to create nebulae that are not purely emissive. I would be interested to see what can be created with depth sorted sprites and to see how large the performance impact is. Is this something that is easy to add as an option?

Buzz
by Buzz
25.02.2008, 20:36
Forum: Development
Topic: Particle System / Volumetric fills / Clouds
Replies: 18
Views: 14558

Re: Particle System / Volumetric fills / Clouds

I have started some simple experiments with point sprites. What I am trying to do is to obscure "emission nebulae" by dark nebula. I am using a partly transparant png as the texture. Although I am not using "blend add", the opaque sprites always appear in front of the transparant ones, even if they ...
by Buzz
23.02.2008, 17:17
Forum: Development
Topic: Particle System / Volumetric fills / Clouds
Replies: 18
Views: 14558

Re: Particle System / Volumetric fills / Clouds

Oops, no I didn't have them turned on! I do see the 'spriteneb' now, thanks Chris!
by Buzz
23.02.2008, 15:25
Forum: Development
Topic: Particle System / Volumetric fills / Clouds
Replies: 18
Views: 14558

Re: Particle System / Volumetric fills / Clouds

I want to find out how point sprites work, and installed Chris' spriteneb addon as a first step. The add-on is found in Celestia, but when I go to it I don't see anything. OpenGL 2.0 was used. I am running Vista home premium 32 bits with an ATI 2600 XT. I was wondering if this could have anything to...
by Buzz
16.11.2007, 16:34
Forum: Development
Topic: Windows Vista Peculiarities and Adjustments
Replies: 30
Views: 22309

Re: Windows Vista Peculiarities and Adjustments

Hm, yes, the thought crossed my mind. I found the announcement here: http://forums.nvidia.com/lofiversion/index.php?t29101.html. Use at your own risk I guess!
by Buzz
16.11.2007, 15:51
Forum: Development
Topic: Windows Vista Peculiarities and Adjustments
Replies: 30
Views: 22309

Re: Windows Vista Peculiarities and Adjustments

I had problems with full screen display of Celestia in Vista: the refresh rate was really low, 60 Hz I think. Updating drivers did not help. What did help was a little tool called Direct Refresh: [direct link removed, see my next message]
by Buzz
27.01.2007, 22:55
Forum: Physics and Astronomy
Topic: Mystery documentary
Replies: 11
Views: 9235

Re: Mystery documentary

Hi Eelco, Thank you for your extensive post! But I'm afraid your suggestion is not correct. I had a look at the Powers of Ten again, and confirmed it is something else. The Powers or Ten is very nice; its simplicty is its strength: there are no camera movements, the camera just zooms out, while show...
by Buzz
20.01.2007, 21:22
Forum: Physics and Astronomy
Topic: Mystery documentary
Replies: 11
Views: 9235

Re: Mystery documentary

Well, actually I have a better, larger version (13 MB mpeg) that I downloaded from somewhere years ago, and I cannot find out where it comes from! It is a bit different from the youtube version, as it travels the other way: from outside the Milky Way towards Earth, and it does not include the rather...
by Buzz
20.01.2007, 17:30
Forum: Physics and Astronomy
Topic: Mystery documentary
Replies: 11
Views: 9235

Mystery documentary

Does anybody happen to know what documentary this clip is from? I have known it for quite some time and keep wondering...
http://www.youtube.com/watch?v=3wskk3U1k-w
by Buzz
27.12.2006, 20:50
Forum: Celestia Users
Topic: 1.5.0 prerelease 2
Replies: 121
Views: 91544

Re: 1.5.0 prerelease 2

As I wrote before, the "glowing moons" don't work for me. This time I wanted to see some examples. An illustration of what Selden said can be seen on APOD: http://antwrp.gsfc.nasa.gov/apod/ap060622.html . Planets do have a halo here, but their interior is washed out with a uniform colour. Buzz PS: I...
by Buzz
23.12.2006, 17:49
Forum: Celestia Users
Topic: 1.5.0 prerelease 2
Replies: 121
Views: 91544

Re: 1.5.0 prerelease 2

I am glad you agree at least partially! Here is a link to a picture of the effect in an earlier topic:
http://www.shatters.net/forum/viewtopic.php?t=10080&start=90
by Buzz
23.12.2006, 14:25
Forum: Celestia Users
Topic: 1.5.0 prerelease 2
Replies: 121
Views: 91544

Re: 1.5.0 prerelease 2

Hello All, I haven't contributed to the forum for a while, but now I'd like to say someting about the new planet and star rendering. I do understand showing halos around planets is meant to give an impression of higher brightness, but it does not work for me. To me the impression is of a luminous ob...
by Buzz
05.05.2006, 22:10
Forum: Petit Bistro Entropy
Topic: More postcards
Replies: 5
Views: 6845

Re: More postcards

There are some nice movies too! Have a look here: http://saturn.jpl.nasa.gov/multimedia/videos/videos.cfm?categoryID=17&subCategoryID=52
"A View from Huygens - Jan. 14, 2005" and "Titan Descent Data Movie with Bells and Whistles" are quite nice.
by Buzz
27.11.2005, 15:02
Forum: Add-on development
Topic: New Auaroras for Earth
Replies: 13
Views: 13003

Re: New Auaroras for Earth

Very nice! I especially like the ground view.
by Buzz
25.11.2005, 22:24
Forum: Celestia Users
Topic: Smallest possible object in Celestia
Replies: 11
Views: 9107

Re: Smallest possible object in Celestia

That does not mean it cannot be exciting in the future.
by Buzz
25.11.2005, 22:13
Forum: Celestia Users
Topic: Smallest possible object in Celestia
Replies: 11
Views: 9107

Re: Smallest possible object in Celestia

There are very high resolution textures for parts of Earth, and human scale models like Stonehenge. So if one would zoom in to regions like that, a nice experience is definitely possible! Edit: Selden has made some very nice addons showing the galaxy distributions in the distant universe, so zooming...

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