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Fixed angle implementation

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This commit is contained in:
Christophe Riccio 2011-05-27 16:34:20 +01:00
parent e4a52432ff
commit c9b7b712fb
3 changed files with 30 additions and 11 deletions
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2
glm/gtx/quaternion.inl
View file

@ -149,7 +149,7 @@ namespace quaternion
detail::tquat<T> const & x
)
{
return acos(x.w) * T(2);
return glm::degrees(acos(x.w) * T(2));
}
template <typename T>

9
test/gtc/gtc_quaternion.cpp
View file

@ -23,11 +23,12 @@ int test_quat_slerp()
{
int Error = 0;
glm::quat A(0.0f, glm::vec3(0, 0, 1));
glm::quat B(90.0f, glm::vec3(0, 0, 1));
glm::quat A(glm::vec3(0, 0, 1));
glm::quat B(glm::vec3(0, 1, 0));
glm::quat C = glm::mix(A, B, 0.5f);
Error += C == glm::quat(45.f, glm::vec3(0, 0, 1)) ? 0 : 1;
glm::quat D(glm::normalize(glm::vec3(0, 1, 1)));
Error += C == D ? 0 : 1;
return Error;
}

30
test/gtx/gtx_quaternion.cpp
View file

@ -11,31 +11,48 @@
#include <glm/gtx/quaternion.hpp>
#include <glm/gtx/epsilon.hpp>
int test_quat_angleAxis()
{
int Error = 0;
glm::quat A = glm::angleAxis(0.0f, glm::vec3(0, 0, 1));
glm::quat B = glm::angleAxis(90.0f, glm::vec3(0, 0, 1));
glm::quat C = glm::mix(A, B, 0.5f);
glm::quat D = glm::angleAxis(45.0f, glm::vec3(0, 0, 1));
Error += glm::equalEpsilon(C.x, D.x, 0.01f) ? 0 : 1;
Error += glm::equalEpsilon(C.y, D.y, 0.01f) ? 0 : 1;
Error += glm::equalEpsilon(C.z, D.z, 0.01f) ? 0 : 1;
Error += glm::equalEpsilon(C.w, D.w, 0.01f) ? 0 : 1;
return Error;
}
int test_quat_angle()
{
int Error = 0;
{
glm::quat Q(45.0f, glm::vec3(0, 0, 1));
glm::quat Q = glm::angleAxis(45.0f, glm::vec3(0, 0, 1));
glm::quat N = glm::normalize(Q);
float L = glm::length(N);
Error += L == 1.0f ? 0 : 1;
Error += glm::equalEpsilon(L, 1.0f, 0.01f) ? 0 : 1;
float A = glm::angle(N);
Error += glm::equalEpsilon(A, 45.0f, 0.01f) ? 0 : 1;
}
{
glm::quat Q(45.0f, glm::vec3(0, 0, 2));
glm::quat Q = glm::angleAxis(45.0f, glm::normalize(glm::vec3(0, 1, 1)));
glm::quat N = glm::normalize(Q);
float L = glm::length(N);
Error += L == 1.0f ? 0 : 1;
Error += glm::equalEpsilon(L, 1.0f, 0.01f) ? 0 : 1;
float A = glm::angle(N);
Error += glm::equalEpsilon(A, 45.0f, 0.01f) ? 0 : 1;
}
{
glm::quat Q(45.0f, glm::vec3(1, 2, 3));
glm::quat Q = glm::angleAxis(45.0f, glm::normalize(glm::vec3(1, 2, 3)));
glm::quat N = glm::normalize(Q);
float L = glm::length(N);
Error += L == 1.0f ? 0 : 1;
Error += glm::equalEpsilon(L, 1.0f, 0.01f) ? 0 : 1;
float A = glm::angle(N);
Error += glm::equalEpsilon(A, 45.0f, 0.01f) ? 0 : 1;
}
@ -48,6 +65,7 @@ int main()
int Error = 0;
Error += test_quat_angle();
Error += test_quat_angleAxis();
return Error;
}