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feat: add shearing matrix operation on matrix_transfom

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This commit is contained in:
arikanli
2022-01-20 21:27:30 +08:00
parent 6ad79aae3e
commit 0f318f63af
3 changed files with 163 additions and 2 deletions
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82
test/core/core_func_matrix.cpp
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@@ -240,6 +240,85 @@ int test_inverse_simd()
return Error;
}
int test_shearing()
{
int Error = 0;
{
glm::vec3 const center(0, 0, 0);
glm::vec2 const l_x(2, 0);
glm::vec2 const l_y(0, 0);
glm::vec2 const l_z(0, 0);
glm::mat4x4 const A4x4(
glm::vec4(0, 0, 1, 1),
glm::vec4(0, 1, 1, 0),
glm::vec4(1, 1, 1, 0),
glm::vec4(1, 1, 0, 1));
glm::mat4x4 const B4x4 = glm::shear(A4x4, center, l_x, l_y, l_z);
glm::mat4x4 const expected(
glm::vec4(0, 0, 1, 1),
glm::vec4(2, 1, 1, 0),
glm::vec4(3, 1, 1, 0),
glm::vec4(3, 1, 0, 1));
Error += all(equal(B4x4, expected, epsilon<float>())) ? 0 : 1;
}
{
glm::vec3 const center(0, 0, 0);
glm::vec2 const l_x(1, 0);
glm::vec2 const l_y(0, 1);
glm::vec2 const l_z(1, 0);
glm::mat4x4 const A4x4(
glm::vec4(0, 0, 1, 0),
glm::vec4(0, 1, 1, 0),
glm::vec4(1, 1, 1, 0),
glm::vec4(1, 0, 0, 0));
glm::mat4x4 const B4x4 = glm::shear(A4x4, center, l_x, l_y, l_z);
glm::mat4x4 const expected(
glm::vec4(0, 1, 1, 0),
glm::vec4(1, 2, 1, 0),
glm::vec4(2, 2, 2, 0),
glm::vec4(1, 0, 1, 0));
Error += all(equal(B4x4, expected, epsilon<float>())) ? 0 : 1;
}
{
glm::vec3 const center(3, 2, 1);
glm::vec2 const l_x(1, 2);
glm::vec2 const l_y(3, 1);
glm::vec2 const l_z(4, 5);
glm::mat4x4 const A4x4(1);
glm::mat4x4 const B4x4 = glm::shear(A4x4, center, l_x, l_y, l_z);
glm::mat4x4 const expected(
glm::vec4(1, 3, 4, 0),
glm::vec4(1, 1, 5, 0),
glm::vec4(2, 1, 1, 0),
glm::vec4(-9, -8, -9, 1));
Error += all(equal(B4x4, expected, epsilon<float>())) ? 0 : 1;
}
{
glm::vec3 const center(3, 2, 1);
glm::vec2 const l_x(1, 2);
glm::vec2 const l_y(3, 1);
glm::vec2 const l_z(4, 5);
glm::mat4x4 const A4x4(
glm::vec4(-3, 2, 1, 0),
glm::vec4(3, 2, 1, 0),
glm::vec4(4, -8, 0, 0),
glm::vec4(7, 1, -2, 0));
glm::mat4x4 const B4x4 = glm::shear(A4x4, center, l_x, l_y, l_z);
glm::mat4x4 const expected(
glm::vec4(1, -6, -1, 0),
glm::vec4(7, 12, 23, 0),
glm::vec4(-4, 4, -24, 0),
glm::vec4(4, 20, 31, 0));
Error += all(equal(B4x4, expected, epsilon<float>())) ? 0 : 1;
}
return Error;
}
template<typename VEC3, typename MAT4>
int test_inverse_perf(std::size_t Count, std::size_t Instance, char const * Message)
{
@@ -293,7 +372,8 @@ int main()
Error += test_transpose();
Error += test_determinant();
Error += test_inverse();
Error += test_inverse_simd();
Error += test_inverse_simd();
Error += test_shearing();
# ifdef NDEBUG
std::size_t const Samples = 1000;