//==============================================================================
void Sphere::setFromPointCloud(
const void* buff, U count, PtrSize stride, PtrSize buffSize)
{
// Calc min/max
Vec4 min(Vec3(MAX_F32), 0.0);
Vec4 max(Vec3(MIN_F32), 0.0);
iteratePointCloud(buff, count, stride, buffSize, [&](const Vec3& pos)
{
for(U j = 0; j < 3; j++)
{
if(pos[j] > max[j])
{
max[j] = pos[j];
}
else if(pos[j] < min[j])
{
min[j] = pos[j];
}
}
});
m_center = (min + max) * 0.5; // average
// max distance between center and the vec3 arr
F32 maxDist = MIN_F32;
iteratePointCloud(buff, count, stride, buffSize, [&](const Vec3& pos)
{
F32 dist = (Vec4(pos, 0.0) - m_center).getLengthSquared();
if(dist > maxDist)
{
maxDist = dist;
}
});
m_radius = sqrt(maxDist);
}
void Aabb::setFromPointCloud(const void* buff, U count, PtrSize stride, PtrSize buffSize)
{
m_min = Vec4(Vec3(MAX_F32), 0.0);
m_max = Vec4(Vec3(MIN_F32), 0.0);
iteratePointCloud(buff, count, stride, buffSize, [&](const Vec3& pos) {
for(U j = 0; j < 3; j++)
{
if(pos[j] > m_max[j])
{
m_max[j] = pos[j];
}
else if(pos[j] < m_min[j])
{
m_min[j] = pos[j];
}
}
});
}
