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view old_tests/test_noise.nim @ 1258:5442d0e9d8ff

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did: improve testing lighting, try new glb model (need to add jpeg support first)
author sam <sam@basx.dev>
date Sun, 28 Jul 2024 20:42:51 +0700
parents 6360c8d17ce0
children
line wrap: on
line source

import semicongine

const w = 500
const h = 500

var o = "P2\n" & $ w & " " & $ h & "\n255\n"

for y in 0 ..< h:
  for x in 0 ..< w:
    let v = (
      Perlin(NewVec2f(float(x) * 0.01, float(y) * 0.01)) * 0.7 +
      Perlin(NewVec2f(float(x) * 0.05, float(y) * 0.05)) * 0.25 +
      Perlin(NewVec2f(float(x) * 0.2, float(y) * 0.2)) * 0.05
    )
    o = o & $(int((v * 0.5 + 0.5) * 255)) & " "
  o = o & "\n"
echo o