Make the rain leave puddles and wet reflections #189

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opened 2026-10-25 02:38:47 +00:00 by sermuns · 0 comments

sermuns commented

2026-10-25 02:38:47 +00:00

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How it fits. The terrain already has a height field, so puddles can collect in local minima and along known paving. The renderer has the depth buffer in the post pass, which is what a cheap screen-space reflection or a sky probe needs. Puddle ripples are a normal perturbation, not a simulation.

Scope.

A wetness field from the weather, with puddles in low spots.
A reflective puddle material with a sky and lamp probe, or screen-space reflection.
Ripples and splashes from feet and tires.
Spray and a wet tire sound.
Depends on the weather work landing (#47, #48); the puddle layer can follow it.

Related. #48 (rain), #220 (storms), #221 (headlights).

Rain that only darkens the ground is a tint. Rain that leaves puddles is a surface: water collects in the low spots and the paving, reflects the sky and the lamps, ripples when stepped in, and sprays off tires. It makes a wet campus feel wet. **How it fits.** The terrain already has a height field, so puddles can collect in local minima and along known paving. The renderer has the depth buffer in the post pass, which is what a cheap screen-space reflection or a sky probe needs. Puddle ripples are a normal perturbation, not a simulation. **Scope.** - A wetness field from the weather, with puddles in low spots. - A reflective puddle material with a sky and lamp probe, or screen-space reflection. - Ripples and splashes from feet and tires. - Spray and a wet tire sound. - Depends on the weather work landing (#47, #48); the puddle layer can follow it. **Related.** #48 (rain), #220 (storms), #221 (headlights).

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2026-10-25 02:38:47 +00:00

sermuns referenced this issue

2026-10-25 02:45:20 +00:00

Bring thunderstorms with lightning and roof rain #220

sermuns added a new dependency

2026-10-25 02:47:19 +00:00

#47 Weather from Open-Meteo