diff options
Diffstat (limited to 'gfx/frustum.cpp')
| -rw-r--r-- | gfx/frustum.cpp | 24 |
1 files changed, 21 insertions, 3 deletions
diff --git a/gfx/frustum.cpp b/gfx/frustum.cpp index faa676d..5c85ac0 100644 --- a/gfx/frustum.cpp +++ b/gfx/frustum.cpp @@ -48,9 +48,27 @@ Frustum::boundByPlanes(const BoundingBox & aabb, size_t nplanes) const = EXTENT_CORNER_IDXS * [relativeAabb = aabb - position](auto idxs) -> glm::vec4 { return {(relativeAabb.*(idxs.x)).x, (relativeAabb.*(idxs.y)).y, (relativeAabb.*(idxs.z)).z, 1.F}; }; - return std::ranges::none_of(std::span(planes).subspan(0, nplanes), [&corners](const auto & frustumPlane) { - return (std::ranges::all_of(corners, [&frustumPlane](const auto & corner) { - return glm::dot(frustumPlane, corner) < 0.F; + return contains(corners, nplanes, 0); +} + +bool +Frustum::contains(GlobalPosition3D point, RelativeDistance size) const +{ + return contains(std::array {RelativePosition4D {(point - position), 1.F}}, FACES, size); +} + +bool +Frustum::shadedBy(GlobalPosition3D point, RelativeDistance size) const +{ + return contains(std::array {RelativePosition4D {(point - position), 1.F}}, FACES - 1, size); +} + +bool +Frustum::contains(const std::span<const RelativePosition4D> points, const size_t nplanes, RelativeDistance size) const +{ + return std::ranges::none_of(std::span(planes).subspan(0, nplanes), [&points, size](const auto & frustumPlane) { + return (std::ranges::all_of(points, [&frustumPlane, size](const auto & corner) { + return glm::dot(frustumPlane, corner) < -size; })); }); } |