Slalomsk8er wrote:Apart from spliting the add-ons section, I think some new features for the science crowd wold to the job.
http://www.shatters.net/forum/viewtopic.php?t=6054, look at this, IMHO the features there would make celestia a superbe visualisation tool for sciencedata and this could boost the science content here as I know there are terabytes on real data (IR, UV, RADAR, X-Ray), witch the fantasy crowd need to invent and imagine first
Greetings, Dominik
The problem is certainly not with lacking ideas for scientifically accurate rendering within Celestia!
I have exhausted myself in the past in this forum with various major proposals that largely also include what you wrote much more recently.
Let me just remind people of my proposal of rendering within different bands of wavelengths, i.e. the general 'filter' idea. Or the Cosmo-Celestia mode, i.e. the idea to simulate the universe on cosmological scales, extending all the way back to the CosmicMicrowave Background (CMB) regime, where the universe was only 300000 years old and the vision ceases, because the cosmic plasma becomes untransparent for photons. Notably the idea was to include and cleverly display the vast Sloan Digital Sky Survey (SDSS) data in a clever conformal display. And so on...
A realization of these exciting posibilities would have really made Celestia unique from
the educational, the scientific realization and the pure fun perspective.
Clearly, Cosmo-Celestia would have to be realized within Einsteins general relativity framework, with stunning 3d graphics added, due to special relativity effects for close to light-speed travel!
To correctly incorporate such large extensions, a thorough insight and know-how in physics, astrophysics and cosmology is required beyond pure coding skills. Hence it is much harder for competitors to keep up along these scientific 'main stream' directions. Not long ago we still had a uniquely qualified developer team for such a challenging task. Now things tend to be "flowing apart", so it seems...
The general problematics resides in the fact that all the developers that would have the competence to contribute (including myself) have unfortunately serious professional committments at
different times.
Therefore it turned out that a real synchronization of intensive dialogs about such plans did not materialize.
So I gave up, rather frustrated, I must admit...
We also have an extensive longstanding shopping list of issues related to scientific accuracy that should urgently be incorporated. Here is a selection of such missing features that particularly frustrated Grant and myself:
1) Lacking precession of the equinoxes.
2) Stars with the same coordinates in stars.dat and in an stc do not plot in the same position.
3) The Earth is 200AU from the coordinate origin, which introduces huge parallax effects for nearby stars, but this has not been rectified because it would "break cel URLs".
4) A number of custom orbits are still quite badly in error.
5) We have no custom orbits for a number of major moons for which suitable formulae are available.
6) Node and pericentre precession is not implemented.
7) We can't select a view by sky coordinates in any useful frame.
8 A truely flexible and accurate coordinate and grid readout for various standard coordinate systems is lacking.
9) My proposed multiple star browser extension and the modified GOTO feature for multiple star systems is lacking.
Now Grant has gone and I am feeling rather lonely on the scientific front...
Here is a note why my work on binary orbits entered (temporary?) stagnation:
http://www.shatters.net/forum/viewtopic.php?t=6312&start=17
A clearcut discussion about Celestia's very purpose, notably among the developers seems to be unavoidable.
One distinguished strategy would be to produce a moderately realistic, eye-catching space simulator. A key aspect would be to spread its
popularity as much as possible, notably also by including plenty of 3d "eye-candy". The other alternative would rather focus on
unprecedented scientific accuracy combined with unprecedented 3d graphics rather than popularity. Compromises between the two cited extreme strategies are thinkable.
This post summarizes some general thoughts that are with me since quite some time
Bye Fridger