mirror of
https://github.com/RetroDECK/ES-DE.git
synced 2024-12-04 20:05:38 +00:00
52 lines
1 KiB
C++
52 lines
1 KiB
C++
#include <glm/gtc/matrix_inverse.hpp>
|
|
#include <glm/gtc/epsilon.hpp>
|
|
|
|
int test_affine()
|
|
{
|
|
int Error = 0;
|
|
|
|
{
|
|
glm::mat3 const M(
|
|
2.f, 0.f, 0.f,
|
|
0.f, 2.f, 0.f,
|
|
0.f, 0.f, 1.f);
|
|
glm::mat3 const A = glm::affineInverse(M);
|
|
glm::mat3 const I = glm::inverse(M);
|
|
glm::mat3 const R = glm::affineInverse(A);
|
|
|
|
for(glm::length_t i = 0; i < A.length(); ++i)
|
|
{
|
|
Error += glm::all(glm::epsilonEqual(M[i], R[i], 0.01f)) ? 0 : 1;
|
|
Error += glm::all(glm::epsilonEqual(A[i], I[i], 0.01f)) ? 0 : 1;
|
|
}
|
|
}
|
|
|
|
{
|
|
glm::mat4 const M(
|
|
2.f, 0.f, 0.f, 0.f,
|
|
0.f, 2.f, 0.f, 0.f,
|
|
0.f, 0.f, 2.f, 0.f,
|
|
0.f, 0.f, 0.f, 1.f);
|
|
glm::mat4 const A = glm::affineInverse(M);
|
|
glm::mat4 const I = glm::inverse(M);
|
|
glm::mat4 const R = glm::affineInverse(A);
|
|
|
|
for(glm::length_t i = 0; i < A.length(); ++i)
|
|
{
|
|
Error += glm::all(glm::epsilonEqual(M[i], R[i], 0.01f)) ? 0 : 1;
|
|
Error += glm::all(glm::epsilonEqual(A[i], I[i], 0.01f)) ? 0 : 1;
|
|
}
|
|
}
|
|
|
|
return Error;
|
|
}
|
|
|
|
int main()
|
|
{
|
|
int Error = 0;
|
|
|
|
Error += test_affine();
|
|
|
|
return Error;
|
|
}
|