Sprites model of Orion-like nebulae (WORK IN PROGRESS)

Post #21by **t00fri** » 17.03.2013, 13:53

Cham wrote: We have the same rendering problem in the standard galactic blobs (gray sprites) as seen at close range or using the zoom feature of Celestia.

Correct. I am experimenting since a long time to improve on this issue.

F.

Cham · Post #22by **Cham** » 17.03.2013, 13:58

t00fri wrote:
Cham wrote: We have the same rendering problem in the standard galactic blobs (gray sprites) as seen at close range or using the zoom feature of Celestia.

Correct. I am experimenting since a long time to improve on this issue.

I may be wrong, but I suspect that these annular artifacts are inevitable, especially with grays.

Post #23by **t00fri** » 17.03.2013, 14:23

Cham wrote:
t00fri wrote:
Cham wrote: We have the same rendering problem in the standard galactic blobs (gray sprites) as seen at close range or using the zoom feature of Celestia.

Correct. I am experimenting since a long time to improve on this issue.

I may be wrong, but I suspect that these annular artifacts are inevitable, especially with grays.

I am convinced that big improvements are possible with a few OpenGL tricks (blending!) and appropriate GLSL shader technology. When CelestialMatters is back up again, I'll get into this issue in more detail.

F.

Cham · Post #24by **Cham** » 18.03.2013, 02:42

A new model, placed inside the NGC 404 galaxy :

NGC404Neb1.jpg

NGC404Neb2.jpg

Cham · Post #25by **Cham** » 18.03.2013, 14:50

A large Open Cluster in NGC 404 :

OpenCluster1.jpg

OpenCluster2.jpg

Cham · Post #26by **Cham** » 21.03.2013, 01:33

My latest models are shown on CM :

http://forum.celestialmatters.org/viewt ... =8835#8835

omega13a · Post #27by **omega13a** » 31.05.2013, 05:10

Have you made any more progress? I would really like to use these in my Omega Galaxy add-on.

buggs_moran · Post #28by **buggs_moran** » 20.06.2013, 01:53

Afraid I've been gone a long time, but it was great to see this. This is very nice work Cham! Did you see the 3D visualiztion of M57 a couple weeks ago?
Dr. Frank Summers' work was done in Maya, but I imagine it would translate pretty easily to sprites in Celestia...
He did a short hangout on how he came up with the 3d structure...
http://youtu.be/Cgquh31FDys

The STSCI video https://www.youtube.com/watch?v=_a94pl2lrYM

Here is the Hubble link for those interested http://hubblesite.org/newscenter/archive/releases/2013/13/

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Sprites model of Orion-like nebulae (WORK IN PROGRESS)

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Re: Sprites model of Orion-like nebulae (WORK IN PROGRESS)

Re: Sprites model of Orion-like nebulae (WORK IN PROGRESS)

Re: Sprites model of Orion-like nebulae (WORK IN PROGRESS)

Re: Sprites model of Orion-like nebulae (WORK IN PROGRESS)