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Coronal flare question

Posted: Mon Jan 09, 2012 11:12 pm
by Cody
I'd like to turn the coronal flare off, but altering the corona_flare key in planetinfo.plist to 0.00 seems to have little or no effect... any ideas?
Also, can the hue of the coronal flare be adjusted to just one colour?

Re: Coronal flare question

Posted: Tue Jan 10, 2012 7:54 am
by cim
El Viejo wrote:
I'd like to turn the coronal flare off, but altering the corona_flare key in planetinfo.plist to 0.00 seems to have little or no effect... any ideas?
Also, can the hue of the coronal flare be adjusted to just one colour?
To make it monochrome, set "corona_hues" to 0.0 (and maybe corona_shimmer as well, since the corona is less noticeable when it's not moving). It then takes on the star's colour.

Re: Coronal flare question

Posted: Tue Jan 10, 2012 11:48 am
by Cody
Thanks cim... one part answered anyway.

Re: Coronal flare question

Posted: Sat Jan 14, 2012 11:59 am
by cim
El Viejo wrote:
Thanks cim... one part answered anyway.
I've had another look at this, and it looks like there are two parts to the sun's border - there's the narrow "atmosphere" which seems to have a constant size (blue line), and there's a fainter corona which (on my install, at least) seems to be affected by corona_flare settings (red line).
Image

Once you shrink the corona_flare enough it ends up entirely within the atmosphere and basically invisible, but it sounds like you want to get rid of the atmosphere as well?

Re: Coronal flare question

Posted: Sat Jan 14, 2012 12:04 pm
by Cody
Yeah, I was aware of the two parts. For me personally, your pic demonstrates why I wish to remove the corona... it looks 'naff'! I have removed the hue, which improves it for me, but I cannot remove all the corona it seems... no matter.

Re: Coronal flare question

Posted: Sat Jan 14, 2012 1:31 pm
by Cody
Either I'm doing something daft (quite possible), or something is odd with my install (1.76).
I cannot adjust the coronal flare, it seems... in the first thumbnail it's set to 0.1, in the second it's set to 0.0:

Image Image

Again... any ideas?

Re: Coronal flare question

Posted: Sat Jan 14, 2012 4:45 pm
by Cody
Another question re the 'universal' section of the planetinfo.plist: is there a maximum setting for the star_count_multiplier, or does it depend on the machine?

Re: Coronal flare question

Posted: Sat Jan 14, 2012 5:19 pm
by JensAyton
El Viejo wrote:
Another question re the 'universal' section of the planetinfo.plist: is there a maximum setting for the star_count_multiplier, or does it depend on the machine?
There’s no explicit limit. Set it ridiculously high and you’ll get performance and/or memory problems.

Re: Coronal flare question

Posted: Sat Jan 14, 2012 5:37 pm
by cim
El Viejo wrote:
Again... any ideas?
It looks like it's not actually registering the change in planetinfo.plist. Rather than shift-starting Oolite, try renaming the OXP folder that makes the change.

Re: Coronal flare question

Posted: Sat Jan 14, 2012 5:38 pm
by Cody
Ahruman wrote:
There’s no explicit limit. Set it ridiculously high and you’ll get performance and/or memory problems.
Thanks... it's running fine at 24, atm. One wonders what 'ridiculously high' may be?

Re: Coronal flare question

Posted: Sat Jan 14, 2012 6:00 pm
by JensAyton
El Viejo wrote:
Thanks... it's running fine at 24, atm. One wonders what 'ridiculously high' may be?
That would have to be determined experimentally. I’d start at 10000 and go up by an order of magnitude each time.

Re: Coronal flare question

Posted: Sat Jan 14, 2012 6:07 pm
by Cody
cim wrote:
It looks like it's not actually registering the change in planetinfo.plist. Rather than shift-starting Oolite, try renaming the OXP folder that makes the change.
I've tried it every which way... even down to a fresh install of vanilla Oolite.
It recognises changes to the star_count_multiplier key, but not to the corona_flare key... odd!

Re: Coronal flare question

Posted: Sat Jan 14, 2012 6:32 pm
by JensAyton
Now you’ve gone and made me read code. Feel sorry for me!

The depth of the outermost corona layer is 0.04 * (sun_radius + 396000 * corona_flare), and corona_flare is clamped to 0…1, so the minimum corona thickness is 4 % of the sun’s radius.

Re: Coronal flare question

Posted: Sat Jan 14, 2012 6:40 pm
by Cody
Ahruman wrote:
Now you’ve gone and made me read code. Feel sorry for me!
Ahhh... I bet you enjoyed it, really.

Re: Coronal flare question

Posted: Thu Feb 16, 2012 11:35 pm
by Cody
I'd meant to mention this a while ago, but forgot.
It seems that the info for certain special systems stored in the savefile overrides the planetinfo.plist settings. Hence the corona persisting around Estiri in G7.