diff options
Diffstat (limited to 'tests/core/math/test_aabb.h')
| -rw-r--r-- | tests/core/math/test_aabb.h | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/tests/core/math/test_aabb.h b/tests/core/math/test_aabb.h index b9f84cca24..dbc62bc248 100644 --- a/tests/core/math/test_aabb.h +++ b/tests/core/math/test_aabb.h @@ -204,6 +204,67 @@ TEST_CASE("[AABB] Intersection") { CHECK_MESSAGE( !aabb_big.intersects_segment(Vector3(0, 300, 0), Vector3(0, 300, 0)), "intersects_segment() should return the expected result with segment of length 0."); + CHECK_MESSAGE( // Simple ray intersection test. + aabb_big.intersects_ray(Vector3(-100, 3, 0), Vector3(1, 0, 0)), + "intersects_ray() should return true when ray points directly to AABB from outside."); + CHECK_MESSAGE( // Ray parallel to an edge. + !aabb_big.intersects_ray(Vector3(10, 10, 0), Vector3(0, 1, 0)), + "intersects_ray() should return false for ray parallel and outside of AABB."); + CHECK_MESSAGE( // Ray origin inside aabb. + aabb_big.intersects_ray(Vector3(1, 1, 1), Vector3(0, 1, 0)), + "intersects_ray() should return true for rays originating inside the AABB."); + CHECK_MESSAGE( // Ray pointing away from aabb. + !aabb_big.intersects_ray(Vector3(-10, 0, 0), Vector3(-1, 0, 0)), + "intersects_ray() should return false when ray points away from AABB."); + CHECK_MESSAGE( // Ray along a diagonal of aabb. + aabb_big.intersects_ray(Vector3(0, 0, 0), Vector3(1, 1, 1)), + "intersects_ray() should return true for rays along the AABB diagonal."); + CHECK_MESSAGE( // Ray originating at aabb edge. + aabb_big.intersects_ray(aabb_big.position, Vector3(-1, 0, 0)), + "intersects_ray() should return true for rays starting on AABB's edge."); + CHECK_MESSAGE( // Ray with zero direction inside. + aabb_big.intersects_ray(Vector3(-1, 3, -2), Vector3(0, 0, 0)), + "intersects_ray() should return true because its inside."); + CHECK_MESSAGE( // Ray with zero direction outside. + !aabb_big.intersects_ray(Vector3(-1000, 3, -2), Vector3(0, 0, 0)), + "intersects_ray() should return false for being outside."); + + // Finding ray intersections. + const AABB aabb_simple = AABB(Vector3(), Vector3(1, 1, 1)); + bool inside = false; + Vector3 intersection_point; + Vector3 intersection_normal; + + // Borders. + aabb_simple.find_intersects_ray(Vector3(0.5, 0, 0.5), Vector3(0, 1, 0), inside, &intersection_point, &intersection_normal); + CHECK_MESSAGE(inside == false, "find_intersects_ray() should return outside on borders."); + CHECK_MESSAGE(intersection_point.is_equal_approx(Vector3(0.5, 0, 0.5)), "find_intersects_ray() border intersection point incorrect."); + CHECK_MESSAGE(intersection_normal.is_equal_approx(Vector3(0, -1, 0)), "find_intersects_ray() border intersection normal incorrect."); + aabb_simple.find_intersects_ray(Vector3(0.5, 1, 0.5), Vector3(0, -1, 0), inside, &intersection_point, &intersection_normal); + CHECK_MESSAGE(inside == false, "find_intersects_ray() should return outside on borders."); + CHECK_MESSAGE(intersection_point.is_equal_approx(Vector3(0.5, 1, 0.5)), "find_intersects_ray() border intersection point incorrect."); + CHECK_MESSAGE(intersection_normal.is_equal_approx(Vector3(0, 1, 0)), "find_intersects_ray() border intersection normal incorrect."); + + // Inside. + aabb_simple.find_intersects_ray(Vector3(0.5, 0.1, 0.5), Vector3(0, 1, 0), inside, &intersection_point, &intersection_normal); + CHECK_MESSAGE(inside == true, "find_intersects_ray() should return inside when inside."); + CHECK_MESSAGE(intersection_point.is_equal_approx(Vector3(0.5, 0, 0.5)), "find_intersects_ray() inside backtracking intersection point incorrect."); + CHECK_MESSAGE(intersection_normal.is_equal_approx(Vector3(0, -1, 0)), "find_intersects_ray() inside intersection normal incorrect."); + + // Zero sized AABB. + const AABB aabb_zero = AABB(Vector3(), Vector3(1, 0, 1)); + aabb_zero.find_intersects_ray(Vector3(0.5, 0, 0.5), Vector3(0, 1, 0), inside, &intersection_point, &intersection_normal); + CHECK_MESSAGE(inside == false, "find_intersects_ray() should return outside on borders of zero sized AABB."); + CHECK_MESSAGE(intersection_point.is_equal_approx(Vector3(0.5, 0, 0.5)), "find_intersects_ray() border intersection point incorrect for zero sized AABB."); + CHECK_MESSAGE(intersection_normal.is_equal_approx(Vector3(0, -1, 0)), "find_intersects_ray() border intersection normal incorrect for zero sized AABB."); + aabb_zero.find_intersects_ray(Vector3(0.5, 0, 0.5), Vector3(0, -1, 0), inside, &intersection_point, &intersection_normal); + CHECK_MESSAGE(inside == false, "find_intersects_ray() should return outside on borders of zero sized AABB."); + CHECK_MESSAGE(intersection_point.is_equal_approx(Vector3(0.5, 0, 0.5)), "find_intersects_ray() border intersection point incorrect for zero sized AABB."); + CHECK_MESSAGE(intersection_normal.is_equal_approx(Vector3(0, 1, 0)), "find_intersects_ray() border intersection normal incorrect for zero sized AABB."); + aabb_zero.find_intersects_ray(Vector3(0.5, -1, 0.5), Vector3(0, 1, 0), inside, &intersection_point, &intersection_normal); + CHECK_MESSAGE(inside == false, "find_intersects_ray() should return outside on borders of zero sized AABB."); + CHECK_MESSAGE(intersection_point.is_equal_approx(Vector3(0.5, 0, 0.5)), "find_intersects_ray() border intersection point incorrect for zero sized AABB."); + CHECK_MESSAGE(intersection_normal.is_equal_approx(Vector3(0, -1, 0)), "find_intersects_ray() border intersection normal incorrect for zero sized AABB."); } TEST_CASE("[AABB] Merging") { |