eu07/maszyna
17
0
Fork 0
mirror of https://github.com/MaSzyna-EU07/maszyna.git synced 2026-10-31 23:59:03 +01:00
Code Issues 156 Wiki Activity

Leave the finest octaves out of the cloud coverage noise so the sides of the clouds get no upright grooves

Browse Source
This commit is contained in:
Hirek
2026-10-17 18:41:15 +02:00
parent dd89aa5396
commit e1900a9cd3
1 changed files with 5 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
shaders/clouds_noise.comp
View File

@@ -82,6 +82,10 @@ float worley_fbm(vec3 position, int frequency, uint seed)
+ worley(position * float(frequency * 4), frequency * 4, seed + 2U) * 0.125; + worley(position * float(frequency * 4), frequency * 4, seed + 2U) * 0.125;
} }
// octaves of the coverage noise: it only places the clouds and gives their outline. it is the same at every height, so its finer
// octaves would stand as upright grooves down the sides of the clouds; their small shapes come from the 3d noises
const int COVERAGE_OCTAVES = 4;
// the worley fbm keeps about to this range (5th and 95th percentile 0.35 and 0.61) // the worley fbm keeps about to this range (5th and 95th percentile 0.35 and 0.61)
const float WORLEY_FBM_LOW = 0.30; const float WORLEY_FBM_LOW = 0.30;
const float WORLEY_FBM_HIGH = 0.65; const float WORLEY_FBM_HIGH = 0.65;
@@ -105,7 +109,7 @@ void main()
if (kind == 2) if (kind == 2)
{ {
vec3 position = vec3((vec2(texel.xy) + 0.5) / float(size), 0.0); vec3 position = vec3((vec2(texel.xy) + 0.5) / float(size), 0.0);
float first = perlin_fbm(position, 4, 6, 11U); float first = perlin_fbm(position, 4, COVERAGE_OCTAVES, 11U);
float second = perlin_fbm(position + vec3(0.0, 0.0, 0.5), 8, 5, 23U); float second = perlin_fbm(position + vec3(0.0, 0.0, 0.5), 8, 5, 23U);
imageStore(noise_plane, texel.xy, vec4(even(first, 0.22), even(second, 0.22), 0.0, 1.0)); imageStore(noise_plane, texel.xy, vec4(even(first, 0.22), even(second, 0.22), 0.0, 1.0));
return; return;