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Dont rescale fractal noise before image output

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This commit is contained in:
Danny Robson 2012-05-23 20:31:19 +10:00
parent eecc648954
commit 3885e9a9ab
1 changed files with 3 additions and 4 deletions
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7
noise.cpp
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@ -29,14 +29,13 @@ util::noise::image2d (uint8_t *restrict pixels,
size_t width,
size_t height,
const util::noise::fractal &p) {
util::range<double> r(0.0,0.0);
util::range<double> r(std::numeric_limits<double>::quiet_NaN (),
std::numeric_limits<double>::quiet_NaN ());
for (size_t y = 0; y < height; ++y)
for (size_t x = 0; x < width; ++x) {
double v = p.eval (x / double (width) * 2, y / double (height) * 2);
double v = p.eval (x / double (width), y / double (height));
r.expand (v);
v += 1.0;
v /= 2.0;
pixels[x + y * width] = v * std::numeric_limits<uint8_t>::max ();
}