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HarbingerDawn
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23 Jan 2018 11:25

Hury999 wrote:
Source of the post Does terrain updates will give us forests?(if 3D trees would be peformance killer then at least sprite trees)

No, it does not add forests or any kind of 3D objects.
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21 Feb 2018 14:02

Are ALL nebulae planned on being changed to volumetric models, or are there just going to be a bunch of new models for procedural space? As far as I could tell from the test videos, none of the nebulae being shown were real ones, but I could be wrong. So are nebulae such as Orion, Barnard's Loop, Eagle, etc nebulas going to be changed to volumetric in 0.9.9.0, or are changing all current models to volumetric more of a long term project and likely be finished for final release?
 
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ARBB
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21 Feb 2018 14:11

Huntingknight wrote:
Are ALL nebulae planned on being changed to volumetric models, or are there just going to be a bunch of new models for procedural space? As far as I could tell from the test videos, none of the nebulae being shown were real ones, but I could be wrong. So are nebulae such as Orion, Barnard's Loop, Eagle, etc nebulas going to be changed to volumetric in 0.9.9.0, or are changing all current models to volumetric more of a long term project and likely be finished for final release?


As far as I know, the only nebulaes that are volumetric are procedural ones, since we don't have a math equation describing the models for the real ones.
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Huntingknight
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22 Feb 2018 04:07

ARBB wrote:
Huntingknight wrote:
Are ALL nebulae planned on being changed to volumetric models, or are there just going to be a bunch of new models for procedural space? As far as I could tell from the test videos, none of the nebulae being shown were real ones, but I could be wrong. So are nebulae such as Orion, Barnard's Loop, Eagle, etc nebulas going to be changed to volumetric in 0.9.9.0, or are changing all current models to volumetric more of a long term project and likely be finished for final release?


As far as I know, the only nebulaes that are volumetric are procedural ones, since we don't have a math equation describing the models for the real ones.

Yeah I kind of figured he would have to build them all one-by-one, which does not seem like a fun job hahahah. Although, I did see some hourglass-like and cone-like nebulas in some of the videos. So maybe some can easily be replaced? I dunno. Maybe there is a way to contact various scientific organizations or agencies like NASA and ESA on 3D nebula and galaxy models. For example, the Orion nebula has been made into a 3D model for visualization. I realize there is no link on that webpage to the actual model, but there may be a way to contact the people who made it for the model.
 
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22 Feb 2018 08:15

Bambusman is the expert here, but making a volumetric M42 for example is *really* hard. but yeah nebulae having clearly a rotation or reflection plane symmetry could be the first ones to be emulated with volumetric techniques. An hybrid approach is more probable in the near future, as in using both volumetric and raster methods for the same object, but it's still work in progress and, if ever,  it needs huge optimization.
About the 3d models from those agencies, they use huge amounts of computational power to calculate those numerical data, while volumetric models need something like a parametric 3d function to approximate the real shape for our poor computers.
There are techniques involving fractal algorithms in order to match somehow real images with mathematical functions, used mainly to search new high quality audio-video compression mechanisms. Add a third dimension and I guess we are talking about frontier informatics :)
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spaceguy
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22 Feb 2018 11:05

Huntingknight wrote:
Source of the post For example, the Orion nebula has been made into a 3D model for visualization.

Isn't this model kinda trash since the nebula certainly isn't as flat as depicted?
 
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22 Feb 2018 12:36

Being NASA/ESA, I really hope they make at least large use of educated guesses (and observational data) :P
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22 Feb 2018 17:08

Mosfet wrote:
Being NASA/ESA, I really hope they make at least large use of educated guesses (and observational data) :P

Eh, I'm more inclined to believe that this was the best they could achieve with current technology. The best sims I've seen of turbulent star formation are not even close to 2D what NASA/ESA depicted. Honestly though, I always thought of the Orion nebula's shape similar to that of a clam (albeit drastically more bulbous and diffuse).  :) 
 
Huntingknight
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22 Feb 2018 19:01

I have seen similar models that are less quality, probably because of how large their files can get. I am sure the 3D NASA/ESA models are still better than what is currently in SE. Also, having a rough model would make it way easier to build "by hand" if he ever plans on making volumetrics for known nebulae

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