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53 Commits
Author SHA1 Message Date
Richard Zink e80d255d58 Fly mostly above the clouds with brief dips 
Camera altitude is now driven by pow(sin,5) so the view stays at
y=2.6 most of the time and only briefly dips to y=0.9 to skim the
top of the cloud deck. Marching also skips the empty gap between
camera and cloud ceiling when looking down from above.
 2026-10-07 18:57:55 +02:00
Richard Zink 433d743446 Tune clouds3d for low-end GPUs: 18 steps, 3 octaves 
Reduce raymarch iterations from 28 to 18 and fBm octaves from
4 to 3 (with step size 0.55->0.85 to preserve cloud coverage).
Per-pixel cost drops by ~55% while visual density stays similar.
 2026-10-07 18:56:40 +02:00
Richard Zink 0648676974 Add volumetric clouds3d renderer 
Raymarches a horizontal cloud layer (28 steps, 4-octave 3D fBm).
Camera path is sinusoidal in altitude so the view dips into the
cloud deck at intervals for a 'fly through the edges' feel.
Density threshold from weather: sunny -> sparse, stormy -> overcast.
Renderer is selected via CONFIG.renderer ('clouds2d' or 'clouds3d').
 2026-10-07 18:54:58 +02:00