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When I upgraded my system with new Z370 motherboard and Coffee Lake processor (i7-8700K) but I had not installed video card (overpriced due to stupid miners), I tried to run Orbiter 2016 but crashed. I checked orbiter log and it showed that: **** Orbiter.log 000000.000: Build Aug 28 2016...

Folks, Does anyone know any formula about sun-sync planetocentric polar coordinates? That (0,0) coordinate always face sun when planet is orbiting around sun so that place a camera on fixed sun-sync polar coordinate to see planet across stars (in background). I had seen that animation demo in...

Folks, I found two memos (in download section) about state vector to orbital elements conversion or via through google. I was able implemented them into my program. I tried it with object above earth with zero velocity and circular velocity (v = sqrt(GM/r)). I got interesting results of...

Thanks. Got it now. I googled about elevation grid interpolation and found some sources. Orbiter SDK manuals did not say that in ElevationGrid function call. One remaining question is still unanswered... How to display partial lower LOD texture tile (due to non-existent tiles at current LOD...

I am writing my OpenGL program to display planet from Orbiter data files. I have some problems with loading image and elevation tiles. I checked database files and noticed some tiles are missing at that deeper (higher) LOD level. It displayed some blank tiles on my screen. I tried to display...

Yes, I am talking about Scott Manley's video. I already know about gravity formula. That's why force of gravity is very small because of the dice's orbital period (24 hrs). Big difference is magnetism (virtual strong force). There was experiment about water drops orbits around rod at ISS a few...

Some time ago, we discussed about tiny objects orbiting each another. I now found a video slip on YouTube about "Can Astronaut orbit Space Station?". Yes, it is possible as long as outside Earth's SOI. That video showed that dices or baseballs orbit around bowling ball 30,000km away from Earth...

Ok, thanks for some replies. I know simple formula for angle view (horizon line). beta = arccos R / R + h where beta is planetocentric R is planet radius h is altitude above surface. To to find a distance to horizon view from camera position: d = R arccos R / R + h I...

Well, I mean world map that Orbiter showed current position of spacecraft with horizon line around it.

Folks, I had seen some satellite map that show horizon line around satellite. Does anyone know any formula to draw horizon line around satellite at its current position? Thanks, Tim

Yeah. Oh, I forget that. Thanks for let me know. I will look into that.

Folks, I was looking for some information about HUD programming for display cockpit panel like pitch level, flight path, airspeed, altitude, etc. Does anyone have any good books to explain about cockpit display for programming? Thanks, Tim Stark ---------- Post added 06-05-16 at 09:33 AM...

I now know that HUD elements are in Orbiter API. I was looking for them to learn how to write own flight simulator myself. I now found info in Principles of Flight Simulation by David Allerton.

I mean HUD drawing routines like pitch ladder, compass tape, direction, velocity vector, etc. I was looking for routines but can't find them.

Folks, I was looking for HUD routines but they are not in OVP sources or DG sources. Does anyone know where are HUD routines that display full-screen cockpit panel? Thanks, Tim Stark ---------- Post added at 06:13 PM ---------- Previous post was at 11:22 AM ---------- Well, no one...

Well, I mean sun-sync planet coordination for fixed eye position, not sun-sync orbit.

Folks, Does anyone know any formula to calculate sun-sync planet coordination (zero degree faces sun from orbiting planet)? At fixed eye position relative to planet, stars in background moves across planet that faces sun fixed. I was looking for formula through google, etc. but can't find one...

Hello folks, I looked for some latest OVP repos through sourceforge, github, and bitbucket websites. However, I found only older source codes (last update date was 2010 to 2012). I do not have seen any latest updates since 2012. I found D3D11 client source codes but its last update date was...

I recently discovered about OMP/ORRL project. I read topics about "OMP News" and tried to access repo on BitBucket and got error 403 (do not have access to repo). What's up? Thanks, Sword7

I was looking for file specs about terrain mapping in LOD levels through Orbiter manuals but can't find anything. Is that possible to generate terrain mapping in varying some LOD levels? Thanks, Sword7