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[FEAT] Add shearing matrix transform

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NADAL Jean-Baptiste
2024-02-05 22:03:06 +01:00
parent ac1c702f78
commit 5bcc33383d
3 changed files with 65 additions and 0 deletions
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50
tests/04_transformations.cpp
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@@ -151,3 +151,53 @@ TEST_CASE("[04][Trans] Rotating a point around the z axis", "[Matrix]")
REQUIRE(half_quarter * p == Tuple::Point(-sqrt(2) / 2, sqrt(2) / 2, 0));
REQUIRE(full_quarter * p == Tuple::Point(-1, 0, 0));
}
/* ------------------------------------------------------------------------- */
TEST_CASE("[04][Trans] A shearing transformation moves x in proportion to y", "[Matrix]")
{
Matrix transform = Matrix::shearing(1, 0, 0, 0, 0, 0);
Tuple p = Tuple::Point(2, 3, 4);
REQUIRE(transform * p == Tuple::Point(5, 3, 4));
}
/* ------------------------------------------------------------------------- */
TEST_CASE("[04][Trans] A shearing transformation moves y in proportion to x", "[Matrix]")
{
Matrix transform = Matrix::shearing(0, 0, 1, 0, 0, 0);
Tuple p = Tuple::Point(2, 3, 4);
REQUIRE(transform * p == Tuple::Point(2, 5, 4));
}
/* ------------------------------------------------------------------------- */
TEST_CASE("[04][Trans] A shearing transformation moves y in proportion to z", "[Matrix]")
{
Matrix transform = Matrix::shearing(0, 0, 0, 1, 0, 0);
Tuple p = Tuple::Point(2, 3, 4);
REQUIRE(transform * p == Tuple::Point(2, 7, 4));
}
/* ------------------------------------------------------------------------- */
TEST_CASE("[04][Trans] A shearing transformation moves z in proportion to x", "[Matrix]")
{
Matrix transform = Matrix::shearing(0, 0, 0, 0, 1, 0);
Tuple p = Tuple::Point(2, 3, 4);
REQUIRE(transform * p == Tuple::Point(2, 3, 6));
}
/* ------------------------------------------------------------------------- */
TEST_CASE("[04][Trans] A shearing transformation moves z in proportion to y", "[Matrix]")
{
Matrix transform = Matrix::shearing(0, 0, 0, 0, 0, 1);
Tuple p = Tuple::Point(2, 3, 4);
REQUIRE(transform * p == Tuple::Point(2, 3, 7));
}