CC
My own circle renderer failed like this. Why? Maybe it's becuase some integer overflow? The code is:
The call for this function is:
sf::Uint8* circle(int r1, int r2, sf::Uint32 inner, sf::Uint32 outer)
{
sf::Uint8* res = new sf::Uint8[r1 * 2 * r2 * 2 * 4];
for (int i = 0; i < r1 * 2; i++)
{
for (int j = 0; j < r2 * 2; j++)
{
((sf::Uint32*)res)[i * r2 * 2 + j] =
((i - r1) * (i - r1) * r2 * r2 +
(j - r2) * (j - r2) * r1 * r1 <=
r1 * r1 * r2 * r2) ? inner : outer;
}
}
return res;
}
The call for this function is:
sf::Uint8* pixels = circle(512, 512, 0, -256);
При меньших размерах эллипса работает лучше, кстати.
