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Open Sky Sim

@openskysim.bsky.social
9 followers 15 following 10 posts
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Open Sky Sim @openskysim.bsky.social · 08/10/2026
The houses are situated at their actual locations, their roof colours are sampled from satellite imagery. Each house is unique and is modelled based on its OSM outline. The drop in FPS is alarming. I need to get the frame rate back to ~60 without sacrificing too much immersion. #performance #fps
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Open Sky Sim @openskysim.bsky.social · 08/10/2026
After adding railways last week and fixing several issues with bridges, i am now adding procedural houses. This makes the world much more lively, even if houses look like prisions without windows. #flightsim #retrogaming #lowpoly #osm #solodev
Satellite view vs in game view. Note the roof color is sampled from the satellite photo.Thousands of houses in GarmischIs there any late shop in this valley?
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Open Sky Sim @openskysim.bsky.social · 04/10/2026
I’ve added a simple railway network with points and level crossings. Bridges and mountainous terrain are the biggest challenge. Due to the low detailed terrain, the tracks often become ski jumps, with steep inclines. #flightsim #retrogaming #solodev #railway #gamedev #lowpoly
safety first, we need railway crossing even if we don't have trains yetrailway pointrailway bridge in the alpsroller coaster ascent
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Open Sky Sim @openskysim.bsky.social · 25/09/2026
It all started as a experimental fork of @ruben3d.bsky.social RetroFlighSim, its HUD and F-22 is still in place. If you like 90s sim resurrections also checkout @why485.bsky.social @hijongpark.bsky.social @hiddenasbestos.bsky.social #flightsim #lowpoly #retrogaming #gamedev
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Open Sky Sim @openskysim.bsky.social · 20/09/2026
first iteration of a procedural bridge system, for now it looks more like a rollercoster #lowpoly #gamedev #indydev #rollercoaster
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Open Sky Sim @openskysim.bsky.social · 20/09/2026
Funny road bug's in vietnam. Some placed off by a mile, others float and even managed to be rendered behind clouds. #bug #flightsim #lowpoly
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Open Sky Sim @openskysim.bsky.social · 18/09/2026
Today I added tree's to wood area's. To keep the retro look and FPS high i only use billboard's from 0°,30°,60° & 90° angle. Lot's of potential here, even South Park trees look better. #lowpoly #flightsim #gamedev
Mixed woodland near the airport.Trees as far as the eye can see.
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Open Sky Sim @openskysim.bsky.social · 17/09/2026
The terrain model is represented by a quadtree to reduce the number of triangles during rendering. It offers 12 LODs, generated from Copernicus DEM-30. To reduce the number of triangles, neighbours with a normal vector of less than 2° are merged. #fligthsim #osm #map #solodev #lowpoly #gamedev
6:15AM over Canarian Islands
Debug/Mesh view: Quad tree in action, 370K terrain triangles
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Open Sky Sim @openskysim.bsky.social · 17/09/2026
I started my pet project "Open Sky Sim" a while ago, just to create the flight sim i ever wanted to play back in the 90's. Pure polygon's, no textures for the retro vibe and heavy LLM support to get it done. #flightsim #flightsim #lowpoly #gamedev #solodev #retrogaming
In game rendering, of the french alps.Gran Canaria Airport, in the background you can see Tenerife
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