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Rain and snow #48

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opened 2026-10-17 20:41:14 +00:00 by sermuns · 0 comments
sermuns commented 2026-10-17 20:41:14 +00:00
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Follows #47, and does not strictly need it -- a client can
run a synthetic cycle offline.

There is no precipitation in the renderer today: no particle pass, no sky. A
billboard particle system over the camera is the cheapest version, and the
project already billboards sprites for markers and moon.

The reason to want it is that a campus in Linkoping in November is grey and wet,
and today it is grey and dry. Snow lying on roofs and paths would also use the
one thing the bake already knows that nothing draws: BakedTerrain heights and
BakedBuilding::base -- a snow line is a comparison against a height field that
already exists, which is a very cheap feature for something that looks as good.

Depends on #47 for anything beyond "it is raining because the game
says so".

Related

  • #47 needs weather to fall from
  • #39 the night sky it lands in
Follows #47, and does not strictly need it -- a client can run a synthetic cycle offline. There is no precipitation in the renderer today: no particle pass, no sky. A billboard particle system over the camera is the cheapest version, and the project already billboards sprites for markers and moon. The reason to want it is that a campus in Linkoping in November is grey and wet, and today it is grey and dry. Snow lying on roofs and paths would also use the one thing the bake already knows that nothing draws: `BakedTerrain` heights and `BakedBuilding::base` -- a snow line is a comparison against a height field that already exists, which is a very cheap feature for something that looks as good. Depends on #47 for anything beyond "it is raining because the game says so". --- **Related** - #47 needs weather to fall from - #39 the night sky it lands in
sermuns added this to the Living campus milestone 2026-10-19 22:18:49 +00:00
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Blocks
#181 Throw snowballs and build a snowman
elsie/liuverse
#182 Freeze the water and skate it
elsie/liuverse
#189 Make the rain leave puddles and wet reflections
elsie/liuverse
#190 Leave footprints and tire tracks in snow
elsie/liuverse
#220 Bring thunderstorms with lightning and roof rain
elsie/liuverse
Depends on
#47 Weather from Open-Meteo
elsie/liuverse
#79 Draw a real sky, horizon haze and sky ambient
elsie/liuverse
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elsie/liuverse#48
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