Undocumented option: Smooth lines

General discussion about Celestia that doesn't fit into other forums.
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chris
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Undocumented option: Smooth lines

Post #1by chris » 09.03.2002, 23:37

I forgot to mention this in the README . . .

Ctrl+X toggles antialiasing of lines. Orbits and contellation lines look much better with this option enabled. I don't have it turned on by default because I don't know how it will affect performance on various graphics cards. It does seem to work fine on all GeForce cards at least.

--Chris

mediatiger
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Location: Berlin, Germany

Post #2by mediatiger » 10.03.2002, 03:38

Ctrl+X works with Radeon and it looks much better.
No problem with the performance.

mediatiger

JLP
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Radeon 8500

Post #3by JLP » 16.03.2002, 19:27

It works just fine on Radeon 8500.
Live long and prosper!

Guest

Post #4by Guest » 17.03.2002, 13:20

Small performance hit on my Laptop's 16meg trident adapter.

Obviously this isn't a 3D card though, and some OpenGL stuff not supported, or supported partially. Eg eclipsed planets turn completely black and sparkle like an event horizon on acid (quite a nice effect, really), and I get some strange, dark radial spikes and shadows that fluctuate on Saturn's rings as you view it from different angles. Is there a way to selectively disable specific command-types from inside Celestia?

Interesting note: upgrading drivers dramatically decreases performance and number of supported extensions. Sigh. What I get for buying a laptop I guess.

cheers for a great prog

Matt McIrvin
Posts: 312
Joined: 04.03.2002
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Saturn strangeness

Post #5by Matt McIrvin » 17.03.2002, 19:29

I get some strange, dark radial spikes and shadows that fluctuate on Saturn's rings as you view it from different angles.


I'm using the Mac OS X port of version 1.2.0 on an old beige G3, which has no hardware acceleration for OpenGL whatsoever, due to Apple wanting me to buy a new computer already instead of waiting for them to support my ancient Rage Pro.

Anyway, I see the same thing you described. Instead of the planet casting a shadow on the rings, the entire antisunward half of the ring system is covered with this weird-looking network of radial black spikes that vary somewhat with the viewing angle. Since I hadn't seen any other complaints, I assume that a system with real 3D acceleration wouldn't show this.

Matt McIrvin
Posts: 312
Joined: 04.03.2002
With us: 22 years 6 months

Saturn strangeness

Post #6by Matt McIrvin » 17.03.2002, 19:35

I get some strange, dark radial spikes and shadows that fluctuate on Saturn's rings as you view it from different angles.


I'm using the Mac OS X port of version 1.2.0 on an old beige G3, which has no hardware acceleration for OpenGL whatsoever, due to Apple wanting me to buy a new computer already instead of waiting for them to support my ancient Rage Pro.

Anyway, I see the same thing you described. Instead of the planet casting a shadow on the rings, the entire antisunward half of the ring system is covered with this weird-looking network of radial black spikes that vary somewhat with the viewing angle. Since I hadn't seen any other complaints, I assume that a system with real 3D acceleration wouldn't show this.


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