[英]Glm quaternion slerp
I am trying to do slerp using quaternions in glm. 我试图在glm中使用四元数做slerp。 I am using
我在用
glm::quat interpolatedquat = quaternion::mix(quat1,quat2,0.5f)
These are the libraries I added 这些是我添加的库
#include <glm/gtc/quaternion.hpp>
#include <glm/gtx/quaternion.hpp>
#include <glm/gtx/euler_angles.hpp>
#include <glm/gtx/norm.hpp>
#include <glm\glm.hpp>
#include <glm\glm\glm.hpp>
using namespace glm;
But I can't get it to work. 但我无法让它发挥作用。 I added all the glm quaternion .hpp's
我添加了所有glm四元数.hpp
The error is "quaternion" must be a classname or namespace. 错误是“quaternion”必须是类名或命名空间。
A search of all files in GLM 0.9.4.6 for namespace quaternion
or quaternion::
yields only a single line in gtc/quaternion.hpp
which has been commented out. 在GLM 0.9.4.6中搜索
namespace quaternion
或quaternion::
的所有文件quaternion::
只在gtc/quaternion.hpp
一条已注释掉的行。 All public GLM functionality is implemented directly in the glm
namespace. 所有公共GLM功能都直接在
glm
命名空间中实现。 Implementation details exist in glm::detail
and occasionally glm::_detail
, but you should never use anything in these namespaces directly, as they are subject to change in future versions. 实现细节存在于
glm::detail
,偶尔也存在glm::_detail
,但是你不应该直接在这些命名空间中使用任何东西,因为它们在将来的版本中会有所变化。
Subnamespaces for each module/extension are not used. 不使用每个模块/扩展的子名称空间。 Therefore, you just need:
因此,您只需要:
glm::quat interpolatedquat = glm::mix(quat1,quat2,0.5f)
And you probably want a semicolon at the end there. 你最后可能想要一个分号。
Edit: You will also probably also want to use glm::slerp
instead of glm::mix
as it has an extra check to ensure that the shortest path is taken: 编辑:您可能还想使用
glm::slerp
而不是glm::mix
因为它有额外的检查以确保采用最短路径:
// If cosTheta < 0, the interpolation will take the long way around the sphere.
// To fix this, one quat must be negated.
if (cosTheta < T(0))
{
z = -y;
cosTheta = -cosTheta;
}
This is not present in the mix
version, which is otherwise identical. 这在
mix
版本中不存在,否则它是相同的。
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