libcruft-util/test/geom/frustum.cpp

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#include "tap.hpp"
#include "geom/frustum.hpp"
#include "geom/aabb.hpp"
#include "matrix.hpp"
#include "geom/iostream.hpp"
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///////////////////////////////////////////////////////////////////////////////
int
main ()
{
cruft::TAP::logger tap;
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const cruft::geom::frustum3f origin90 (
cruft::perspective (cruft::to_radians (90.f), 1.f, {0.01f, 1.f})
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);
static const struct {
cruft::geom::aabb3f box;
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bool intersects;
const char *message;
} TESTS[] = {
{ { { -1, -1, -1 }, { 1, 1, 1 } }, true, "covers origin with unit radius" },
{ { { -9, -9, -9 }, { -8, -8, -8 } }, false, "out of view negative" },
{ { { -1, -1, 2 }, { 1, 1, 3 } }, false, "past far plane" },
{ { { 0, 0, 0 }, { 0, 0, 0 } }, false, "before near plane" },
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};
for (const auto &t: TESTS) {
tap.expect_eq (intersects (origin90, t.box), t.intersects, "origin frustrum, %s", t.message);
}
return tap.status ();
};