本文整理汇总了C++中Vec3f::distanceSquared方法的典型用法代码示例。如果您正苦于以下问题：C++ Vec3f::distanceSquared方法的具体用法？C++ Vec3f::distanceSquared怎么用？C++ Vec3f::distanceSquared使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Vec3f的用法示例。
在下文中一共展示了Vec3f::distanceSquared方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: calculateBoundingSphere
Sphere Sphere::calculateBoundingSphere( const vector<Vec3f> &points )
{
// compute minimal and maximal bounds
Vec3f min(points[0]), max(points[0]);
for( size_t i = 1; i < points.size(); ++i ) {
if( points[i].x < min.x )
min.x = points[i].x;
else if( points[i].x > max.x )
max.x = points[i].x;
if( points[i].y < min.y )
min.y = points[i].y;
else if( points[i].y > max.y )
max.y = points[i].y;
if( points[i].z < min.z )
min.z = points[i].z;
else if( points[i].z > max.z )
max.z = points[i].z;
}
// compute center and radius
Vec3f center = 0.5f * ( min + max );
float maxDistance = center.distanceSquared( points[0] );
for( size_t i = 1; i < points.size(); ++i ) {
float dist = center.distanceSquared( points[i] );
if( dist > maxDistance )
maxDistance = dist;
}
return Sphere( center, math<float>::sqrt( maxDistance ) );
}示例2: sampleDensity
float RayMarcher::sampleDensity( const Vec3f &v )
{
float d = 0.0f;
for( vector<Sphere>::const_iterator sphIt = mSpheres.begin(); sphIt != mSpheres.end(); ++sphIt ) {
float rSquared = sphIt->getRadius() * sphIt->getRadius();
float dSquared = v.distanceSquared( sphIt->getCenter() );
if( dSquared < rSquared ) {
d = std::max( d, 1.0f - math<float>::sqrt( dSquared / rSquared ) );
// d += 1.0f - math<float>::sqrt( dSquared / rSquared );
}
}
if( d > 0.001f ) {
d *= d * 4;
d *= 0.3f + mPerlin.fBm( v * 0.93f ) * 0.7f;
}
return d;
}