本文整理汇总了C++中core::vector3df::getDistanceFromSQ方法的典型用法代码示例。如果您正苦于以下问题：C++ vector3df::getDistanceFromSQ方法的具体用法？C++ vector3df::getDistanceFromSQ怎么用？C++ vector3df::getDistanceFromSQ使用的例子？那么, 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core::vector3df的用法示例。
在下文中一共展示了vector3df::getDistanceFromSQ方法的1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: getAngleWeight
// Copied from irrlicht
static inline core::vector3df getAngleWeight(const core::vector3df& v1,
const core::vector3df& v2,
const core::vector3df& v3)
{
// Calculate this triangle's weight for each of its three vertices
// start by calculating the lengths of its sides
const f32 a = v2.getDistanceFromSQ(v3);
const f32 asqrt = sqrtf(a);
const f32 b = v1.getDistanceFromSQ(v3);
const f32 bsqrt = sqrtf(b);
const f32 c = v1.getDistanceFromSQ(v2);
const f32 csqrt = sqrtf(c);
// use them to find the angle at each vertex
return core::vector3df(
acosf((b + c - a) / (2.f * bsqrt * csqrt)),
acosf((-b + c + a) / (2.f * asqrt * csqrt)),
acosf((b - c + a) / (2.f * bsqrt * asqrt)));
}