本文整理汇总了C++中Vector4::SquareLength方法的典型用法代码示例。如果您正苦于以下问题：C++ Vector4::SquareLength方法的具体用法？C++ Vector4::SquareLength怎么用？C++ Vector4::SquareLength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Vector4的用法示例。
在下文中一共展示了Vector4::SquareLength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: OptimizeAnimClip
void AnimationUtil::OptimizeAnimClip(const std::shared_ptr<AnimationClip> &clip, float quality)
{
if (quality > 1.0f)
quality = 1.0f;
float maxAngle = quality * MathUtil::DegreeToRadian(45);
std::vector<KeyFrame> tempFrames;
auto ProcessKeyFrames = [&](std::vector<KeyFrame> &keyframes)
{
unsigned int count = keyframes.size();
if (count < 3)
return;
KeyFrame prev = keyframes[0];
tempFrames.erase(tempFrames.begin(), tempFrames.end());
tempFrames.reserve(count);
tempFrames.push_back(prev);
for (unsigned int i = 1; i < count - 1; i++)
{
KeyFrame curr = keyframes[i], next = keyframes[i + 1];
Vector4 vec1(prev.x, prev.y, prev.z);
Vector4 vec2(curr.x, curr.y, curr.z);
Vector4 vec3(next.x, next.y, next.z);
Vector4 a = (vec2 - vec1).Normalized();
if (a.SquareLength() == 0.0f)
continue;
Vector4 b = (vec3 - vec2).Normalized();
float angle = std::abs(std::acos(a * b));
if (angle < maxAngle)
continue;
prev = curr;
tempFrames.push_back(curr);
}
tempFrames.push_back(keyframes[count - 1]);
keyframes.resize(tempFrames.size());
std::copy(tempFrames.begin(), tempFrames.end(), keyframes.begin());
};
unsigned int oldCount = 0, newCount = 0;
for (auto channel : clip->m_Channels)
{
if (channel->rotations.size() > 0)
{
oldCount += channel->rotations.size();
ProcessKeyFrames(channel->rotations);
newCount += channel->rotations.size();
}
if (channel->positions.size() > 0)
{
oldCount += channel->positions.size();
ProcessKeyFrames(channel->positions);
newCount += channel->positions.size();
}
if (channel->scalings.size() > 0)
{
oldCount += channel->scalings.size();
ProcessKeyFrames(channel->scalings);
newCount += channel->scalings.size();
}
}
FURYD << "Before: " << oldCount << " After: " << newCount;
}