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[FEAT] Add some chaines test

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NADAL Jean-Baptiste
2024-02-05 22:20:51 +01:00
parent 5bcc33383d
commit 4251291170
1 changed files with 33 additions and 0 deletions
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33
tests/04_transformations.cpp
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@@ -201,3 +201,36 @@ TEST_CASE("[04][Trans] A shearing transformation moves z in proportion to y", "[
REQUIRE(transform * p == Tuple::Point(2, 3, 7));
}
/* ------------------------------------------------------------------------- */
TEST_CASE("[04][Trans] Individual transformations are applied in sequence", "[Matrix]")
{
Tuple p = Tuple::Point(1, 0, 1);
Matrix a = Matrix::rotation_x(std::numbers::pi / 2);
Matrix b = Matrix::scaling(5, 5, 5);
Matrix c = Matrix::translation(10, 5, 7);
// Appply rotation first.
Tuple p2 = a * p;
REQUIRE(p2 == Tuple::Point(1, -1, 0));
// Then Apply scaling
Tuple p3 = b * p2;
REQUIRE(p3 == Tuple::Point(5, -5, 0));
// Then Apply translation
Tuple p4 = c * p3;
REQUIRE(p4 == Tuple::Point(15, 0, 7));
}
/* ------------------------------------------------------------------------- */
TEST_CASE("[04][Trans] Chained transformation must be applied in rever order", "[Matrix]")
{
Tuple p = Tuple::Point(1, 0, 1);
Matrix a = Matrix::rotation_x(std::numbers::pi / 2);
Matrix b = Matrix::scaling(5, 5, 5);
Matrix c = Matrix::translation(10, 5, 7);
Matrix t = c * b * a;
REQUIRE(t * p == Tuple::Point(15, 0, 7));
}