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Merge pull request #27193 from toasteater/fix/pcg-randf

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Improved uniformity of RandomPCG::randf.
This commit is contained in:
Rémi Verschelde
2019-06-12 15:21:58 +02:00
committed by GitHub
parent 704f2c5d85 5f1b9a2313
commit 73960e585b
2 changed files with 62 additions and 8 deletions
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8
core/math/random_pcg.cpp
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@@ -43,13 +43,9 @@ void RandomPCG::randomize() {
}
double RandomPCG::random(double p_from, double p_to) {
unsigned int r = rand();
double ret = (double)r / (double)RANDOM_MAX;
return (ret) * (p_to - p_from) + p_from;
return randd() * (p_to - p_from) + p_from;
}
float RandomPCG::random(float p_from, float p_to) {
unsigned int r = rand();
float ret = (float)r / (float)RANDOM_MAX;
return (ret) * (p_to - p_from) + p_from;
return randf() * (p_to - p_from) + p_from;
}