is there any way of getting the moon on Celestia to go red!
it just disapears
David
Red Moon
-
Evil Dr Ganymede
- Posts: 1386
- Joined: 06.06.2003
- With us: 21 years 3 months
Re: Red Moon
David wrote:is there any way of getting the moon on Celestia to go red!
it just disapears
David
I presume you mean during a Lunar Eclipse? Nope. Celestia doesn't handle the diffraction of light through the atmosphere that makes the moon go red when it's in Earth's shadow, so it just goes black instead because no light is directly reaching it..
EDIT: BTW, you posted this on the wrong board - best place for this sort of thing is on the Users board. This board is for people who are actually developing new material for Celestia. (Selden, maybe you could move this?)
-
Guest
Anonymous wrote:MB, Would you consider making a hack for pre5?? It would be really cool
to see a red total Lunar eclipse.
I will look if the code of Celestia has not changed too much concerning this peculiar aspect. This hack was 2 years old :roll:
Unfortunately I am not optimistic:
1: I cannot anymore compile under Windows since Chris use the last Visual C++ developing set.
2: The situation is somewhat better with Linux, but I stiill have some problems.
It is rather obvious that the continuous improvement ( change, at least) :wink: does not help for the developer amateur like me.
Sorry, MB
-
Guest
Anonymous Guest,
makerelease.bat works fine, but only if you have a compatible compiler installed on your system. In particular, it has to be Windows C++ v7.0 or later.
e.g. the version that's included with Microsoft Visual Studio 2003 Professional.
My understanding is that a "cookbook" explaining how to use the free version of Microsoft's Windows C++ compiler is in development.
Unfortunately, compiling under Linux has prerequisites which aren't explicitly documented. Several of the "auto" configuration tools have to be invoked which create an appropriate makefile, for example.
makerelease.bat works fine, but only if you have a compatible compiler installed on your system. In particular, it has to be Windows C++ v7.0 or later.
e.g. the version that's included with Microsoft Visual Studio 2003 Professional.
My understanding is that a "cookbook" explaining how to use the free version of Microsoft's Windows C++ compiler is in development.
Unfortunately, compiling under Linux has prerequisites which aren't explicitly documented. Several of the "auto" configuration tools have to be invoked which create an appropriate makefile, for example.
Selden
Sorry for this late answer. I am not presently at home and I do not look at the forum as frequently as it would be. I need to clarify some points.
1. I devoted at least one thread about this topic where I developped my view point in details, I don't remember when, but you should easily find these posts using the "Search" function with my forum id: MB, or by searching the word Eclipse.
2. I don't have the corresponding source code available here, I have to wait when I will be back at home (end of the week).
3. I only have Visual C++ V6.0, installed, therefore as explained by Selden I cannot compile the new code. Even more, only the file I have to modify (render;cpp) cannot be compiled with C++ V6.0 !!! Actually I have the material to install C++ V7.0. However, It is a apparently a very heavy stuff, I tried to install it but the install complained saying that I have to install something else in Windows. Furthermore I read (or I heard ), as a warning, that it is hasardous to install it! Therefore I am still in a kind of an expectation state.
4. In addition, you may easily understand that it is very boring to apply such change to the many successive prereleased versions of celestia. It is the reason why I gave up. If I can solve the above problems, I will try to make such hack, at least for the released version.
5. The best solution would be that the developpers consider this effect ( by treating the light scattering by our dusty atmosphere) but it is clearly not in their priority.
MB
1. I devoted at least one thread about this topic where I developped my view point in details, I don't remember when, but you should easily find these posts using the "Search" function with my forum id: MB, or by searching the word Eclipse.
2. I don't have the corresponding source code available here, I have to wait when I will be back at home (end of the week).
3. I only have Visual C++ V6.0, installed, therefore as explained by Selden I cannot compile the new code. Even more, only the file I have to modify (render;cpp) cannot be compiled with C++ V6.0 !!! Actually I have the material to install C++ V7.0. However, It is a apparently a very heavy stuff, I tried to install it but the install complained saying that I have to install something else in Windows. Furthermore I read (or I heard ), as a warning, that it is hasardous to install it! Therefore I am still in a kind of an expectation state.
4. In addition, you may easily understand that it is very boring to apply such change to the many successive prereleased versions of celestia. It is the reason why I gave up. If I can solve the above problems, I will try to make such hack, at least for the released version.
5. The best solution would be that the developpers consider this effect ( by treating the light scattering by our dusty atmosphere) but it is clearly not in their priority.
MB