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node: local and world transforms

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This commit is contained in:
Matvey Cherevko
2019-02-08 06:30:47 +07:00
parent 1ce03f493d
commit e6352edfba
7 changed files with 168 additions and 26 deletions
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64
untests/sources/untests_high/scene.cpp
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@@ -803,4 +803,68 @@ TEST_CASE("node") {
REQUIRE(fake_node::s_parent_changes == 5);
REQUIRE(fake_node::s_children_changes == 4);
}
SECTION("local_matrix") {
{
auto p = node::create();
p->transform(math::make_translation_trs3(v3f{10.f,0.f,0.f}));
auto n = node::create(p);
n->transform(math::make_translation_trs3(v3f{20.f,0.f,0.f}));
REQUIRE(n->local_matrix() == math::make_translation_matrix4(20.f,0.f,0.f));
auto v = v4f(5.f,0.f,0.f,1.f);
REQUIRE(v * n->local_matrix() == v4f{25.f,0.f,0.f,1.f});
n->transform(math::make_scale_trs3(v3f(1.f,2.f,3.f)));
REQUIRE(n->local_matrix() == math::make_scale_matrix4(1.f,2.f,3.f));
}
}
SECTION("world_matrix") {
{
auto p = node::create();
p->transform(math::make_translation_trs3(v3f{10.f,0.f,0.f}));
auto n = node::create(p);
n->transform(math::make_translation_trs3(v3f{20.f,0.f,0.f}));
auto v = v4f(5.f,0.f,0.f,1.f);
REQUIRE(v * n->world_matrix() == v4f{35.f,0.f,0.f,1.f});
n->transform(math::make_scale_trs3(v3f(1.f,2.f,3.f)));
REQUIRE(n->world_matrix() ==
math::make_scale_matrix4(1.f,2.f,3.f) *
math::make_translation_matrix4(10.f,0.f,0.f));
}
{
auto n = node::create();
n->transform(math::make_translation_trs3(v3f{20.f,0.f,0.f}));
REQUIRE(n->world_matrix() ==
math::make_translation_matrix4(20.f,0.f,0.f));
auto p = node::create();
p->transform(math::make_translation_trs3(v3f{10.f,0.f,0.f}));
p->add_child(n);
REQUIRE(n->world_matrix() ==
math::make_translation_matrix4(30.f,0.f,0.f));
}
{
auto p1 = node::create();
p1->transform(math::make_translation_trs3(v3f{10.f,0.f,0.f}));
auto p2 = node::create();
p2->transform(math::make_translation_trs3(v3f{20.f,0.f,0.f}));
auto n = node::create(p2);
n->transform(math::make_translation_trs3(v3f{30.f,0.f,0.f}));
REQUIRE(n->world_matrix() ==
math::make_translation_matrix4(50.f,0.f,0.f));
p1->add_child(p2);
REQUIRE(n->world_matrix() ==
math::make_translation_matrix4(60.f,0.f,0.f));
}
}
}