Unigine.BoundBox Struct
Notice
The functions listed below are the members of the Unigine.MathLib namespace.
This structure serves to construct the bounding box in single precision coordinates.
Instances of this structure are deleted automatically, when necessary.
In case of double precision coordinates, the bounding box should be constructed by using the WorldBoundBox structure. It includes the same functions as the BoundBox structure, but its functions deal with the double precision coordinates.
To support both single and double precision builds, you can use the WorldBoundBox structure only. The engine will automatically substitute it with the BoundBox, if required.
BoundBox Class
Members
BoundBox ( vec3 min_, vec3 max_ ) #
Constructor. Initializes the bounding box by the minimum and maximum coordinates.Arguments
- vec3 min_ - Minimum coordinates of the bounding box.
- vec3 max_ - Maximum coordinates of the bounding box.
BoundBox ( vec3[] points ) #
Constructor. Initializes the bounding box by the coordinates of points in space to be enclosed by it.Arguments
- vec3[] points - Array of points to be enclosed by the bounding box.
BoundBox ( BoundBox bb ) #
Constructor. Initializes the bounding box equal to the bounding box specified in the argument.Arguments
- BoundBox bb - Bounding box.
BoundBox ( BoundBox bb, mat4 transform ) #
Constructor. Initializes the bounding box by the given bounding box with the given transformation matrix.Arguments
BoundBox ( BoundBox bb, dmat4 transform ) #
Constructor. Initializes the bounding box by the given bounding box with the given transformation matrix taken into account.Arguments
BoundBox ( BoundSphere bs ) #
Constructor. Initializes the bounding box by the bounding sphere.Arguments
- BoundSphere bs - Bounding sphere.
BoundBox operator* ( mat4 m, BoundBox bs ) #
Multiplies the matrix by the bounding box and returns the resulting bounding box.Arguments
Return value
Resulting bounding box.BoundBox operator* ( dmat4 m, BoundBox bs ) #
Multiplies the matrix by the bounding box and returns the resulting bounding box.Arguments
Return value
Bounding box.void Set ( vec3 min_, vec3 max_ ) #
Sets the bounding box by the minimum and maximum coordinates.Arguments
- vec3 min_ - Minimum coordinates of the bounding box.
- vec3 max_ - Maximum coordinates of the bounding box.
void Set ( vec3[] points ) #
Sets the bounding box by the coordinates of points in space to be enclosed by it.Arguments
- vec3[] points - Array of points to be enclosed by the bounding box.
void Set ( BoundBox bb ) #
Sets the bounding box equal to the bounding box specified in the argument.Arguments
- BoundBox bb - Bounding box.
void Set ( BoundBox bb, mat4 transform ) #
Sets the bounding box by the given bounding box with the given transformation matrix taken into account.Arguments
void Set ( BoundBox bb, dmat4 transform ) #
Sets the bounding box by the given bounding box with the given transformation matrix taken into account.Arguments
void Set ( BoundSphere bs ) #
Sets the bounding box by the bounding sphere.Arguments
- BoundSphere bs - Bounding sphere.
void Clear ( ) #
Clears the bounding box by setting all components/elements to 0.bool Equals ( BoundBox other ) #
Checks if the current bounding box is equal to the specified argument considering the predefined accuracy (epsilon).Arguments
- BoundBox other - Bounding box to be checked for equality.
Return value
true if the size and position of both bounding boxes are equal; otherwise, false.bool EqualsNearly ( BoundBox other, float epsilon ) #
Checks if the argument represents the same bounding box with regard to the specified accuracy (epsilon).Arguments
- BoundBox other - Bounding box to be checked for equality.
- float epsilon - Epsilon value, that determines accuracy of comparison.
Return value
true if the size and position of both bounding boxes are equal; otherwise, false.bool Equals ( object obj ) #
Checks if the object and the bounding box are equal considering the predefined accuracy (epsilon).Arguments
- object obj - Object.
Return value
true if the size and position of the object and the bounding box are equal; otherwise, false.int GetHashCode ( ) #
Returns a hash code for the current object. Serves as the default hash function.Return value
Hash code.void SetTransform ( mat4 transform ) #
Sets the given transformation matrix to the bounding box.Arguments
- mat4 transform - Transformation matrix (mat4) to be set.
void SetTransform ( dmat4 transform ) #
Sets the given transformation matrix to the bounding box.Arguments
- dmat4 transform - Transformation matrix (dmat4) to be set.
void SetTransform ( BoundSphere bs, mat4 transform ) #
Sets the transformation matrix of the current bounding box for including the given bounding sphere with the given transformation matrix taken into account.Arguments
- BoundSphere bs - Bounding sphere.
- mat4 transform - Transformation matrix (mat4) to be set.
void SetTransform ( BoundSphere bs, dmat4 transform ) #
Sets the transformation matrix of the current bounding box for including the given bounding sphere with the given transformation matrix taken into account.Arguments
- BoundSphere bs - Bounding sphere.
- dmat4 transform - Transformation matrix (dmat4) to be set.
void Expand ( vec3 point ) #
Expands the current bounding box to enclose the given point.Arguments
- vec3 point - Point coordinates.
void Expand ( vec3[] points ) #
Expands the current bounding box to enclose all given points.Arguments
- vec3[] points - Array of points to be enclosed by the bounding box.
void Expand ( BoundSphere bs ) #
Expands the current bounding box to enclose the given bounding sphere.Arguments
- BoundSphere bs - Bounding sphere.
void Expand ( BoundBox bb ) #
Expands the current bounding box to enclose the given bounding box.Arguments
- BoundBox bb - Bounding box.
bool Inside ( vec3 point ) #
Checks if the given point is inside the bounding box.Arguments
- vec3 point - Point coordinates.
Return value
true if the point is inside the bounding box; otherwise, false.bool Inside ( vec3 point, float radius ) #
Checks if the given sphere is inside the current bounding box.Arguments
- vec3 point - Coordinates of the center of the sphere.
- float radius - Sphere radius.
Return value
true if the sphere is inside the bounding box; otherwise, false.bool inside ( vec3 min_, vec3 max_ ) #
Checks if the box with the given coordinates is inside the current bounding box.Arguments
Return value
true if the box is inside the bounding box; otherwise, false.bool InsideValid ( vec3 point ) #
Checks if given point is inside the bounding box.Notice
The method doesn't check if the minimum and maximum coordinates of the current bound are valid.
Arguments
- vec3 point - Point coordinates.
Return value
true if the point is inside the bounding box; otherwise, false.bool InsideValid ( vec3 point, float radius ) #
Checks if the sphere is inside the bounding box.Notice
The method doesn't check if the minimum and maximum coordinates of the current bound are valid.
Arguments
- vec3 point - Coordinates of the center of the sphere.
- float radius - Sphere radius.
Return value
true if the sphere is inside the bounding box; otherwise, false.bool InsideValid ( vec3 min_, vec3 max_ ) #
Checks if the box specified in the argument is inside the current bound.Notice
The method doesn't check if the minimum and maximum coordinates of the current bound are valid.
Arguments
Return value
true if the box is inside the bounding box; otherwise, false.bool InsideValid ( vec3[] points ) #
Checks if the points specified in the argument are inside the current bound.Notice
The method doesn't check if the minimum and maximum coordinates of the current bound are valid.
Arguments
- vec3[] points - Array of points.
Return value
true if the specified points are inside the bounding box; otherwise, false.bool Inside ( BoundSphere bs ) #
Checks if the bounding sphere specified in the argument is inside the current bounding box.Arguments
- BoundSphere bs - Bounding sphere.
Return value
true if the bounding sphere is inside the bounding box; otherwise, false.bool Inside ( BoundBox bb ) #
Checks if the bounding box specified in the argument is inside the current bounding box.Arguments
- BoundBox bb - Bounding box.
Return value
true if the bounding box is inside the bounding box; otherwise, false.bool InsideValid ( BoundSphere bs ) #
Checks if the bounding sphere specified in the argument is inside the current bounding box.Notice
The method doesn't check if the minimum and maximum coordinates of the current bounding box are valid.
Arguments
- BoundSphere bs - Bounding sphere.
Return value
true if the bounding sphere is inside the bounding box; otherwise, false.bool InsideValid ( BoundBox bb ) #
Checks if the bounding box specified in the argument is inside the current bounding box.Notice
The method doesn't check if the minimum and maximum coordinates of the current bounding box are valid.
Arguments
- BoundBox bb - Bounding box.
Return value
true if the bounding box is inside the bounding box; otherwise, false.bool InsideAll ( BoundSphere bs ) #
Checks if the whole bounding sphere specified in the argument is inside the current bounding box.Arguments
- BoundSphere bs - Bounding sphere.
Return value
true if the whole bounding sphere is inside the bounding box; otherwise, false.bool InsideAll ( BoundBox bb ) #
Checks if the whole bounding box specified in the argument is inside the current bounding box.Arguments
- BoundBox bb - Bounding box.
Return value
true if the whole bounding box is inside the bounding box; otherwise, false.bool InsideAllValid ( BoundSphere bs ) #
Checks if the bounding sphere specified in the argument is inside the current bounding box.Notice
The method doesn't check if the minimum and maximum coordinates of the current bounding box are valid.
Arguments
- BoundSphere bs - Bounding sphere.
Return value
true if the whole bounding sphere is inside the bounding box; otherwise, false.bool InsideAllValid ( BoundBox bb ) #
Checks if the whole bounding box specified in the argument is inside the current bounding box.Notice
The method doesn't check if the minimum and maximum coordinates of the current bounding box are valid.
Arguments
- BoundBox bb - Bounding box.
Return value
true if the whole bounding box is inside the bounding box; otherwise, false.bool InsideCube ( int face, vec3 offset ) #
Checks if a face of the current bounding box is inside the cube represented by minimum and maximum coordinates of the bounding box.Arguments
- int face - The face index from 0 to 5.
- vec3 offset - Offset.
Return value
true if the face is inside the bounding cube; otherwise, false.bool RayIntersection ( vec3 point, vec3 direction ) #
Checks for an intersection between a ray and the current bounding box.Arguments
Return value
true if the given ray intersects the bounding box; otherwise, false.bool IRayIntersection ( vec3 point, vec3 idirection ) #
Checks for an intersection between a ray and the current bounding box. This function uses the inverse direction of the ray, which increases performance.Arguments
Return value
true if the given ray intersects the bounding box; otherwise, false.bool GetIntersection ( vec3 p0, vec3 p1 ) #
Checks for an intersection between a line and the current bounding box.Arguments
Return value
true if the given line intersects the bounding box; otherwise, false.bool RayIntersectionValid ( vec3 point, vec3 direction ) #
Checks for an intersection between a ray and the current bounding box.Notice
This function doesn't check if the minimum and maximum coordinates of the bounding box are valid.
Arguments
Return value
true if the given ray intersects the bounding box; otherwise, false.bool IRayIntersectionValid ( vec3 point, vec3 idirection ) #
Checks for an intersection between a ray and the current bounding box. This function uses the inverse direction of the ray, which increases performance.Notice
This function doesn't check if the minimum and maximum coordinates of the bounding box are valid.
Arguments
Return value
true if the given ray intersects the bounding box; otherwise, false.bool GetIntersectionValid ( vec3 p0, vec3 p1 ) #
Checks for an intersection between a line and the current bounding box.Notice
This function doesn't check if the minimum and maximum coordinates of the bounding box are valid.
Arguments
Return value
true if the given line intersects the bounding box; otherwise, false.float Distance ( ) #
Returns the distance from the origin of coordinates to the closest vertex of the bounding box.Return value
Distance in units if the minimum and maximum coordinates of the bounding box are valid; otherwise, INF.float Distance ( vec3 point ) #
Returns the distance from the given point to the closest vertex of the bounding box.Arguments
- vec3 point - Coordinates of a point.
Return value
Distance, in units, if the minimum and maximum coordinates of the bounding box are valid; otherwise, INF.float DistanceValid ( ) #
Returns the distance from the origin of coordinates to the closest vertex of the bounding box.Notice
This function doesn't check if the minimum and maximum coordinates of the bounding box are valid.
Return value
Distance, in units.float DistanceValid ( vec3 point ) #
Returns the distance from the given point to the closest vertex of the bounding box.Notice
This function doesn't check if the minimum and maximum coordinates of the bounding box are valid.
Arguments
- vec3 point - Point.
Return value
Distance, in units.bool IsCameraVisible ( vec3 camera, float min_distance, float max_distance ) #
Returns a value indicating if the bounding box is within the camera visibility distance.Arguments
- vec3 camera - Coordinates of the camera position.
- float min_distance - Minimum visibility distance, in meters.
- float max_distance - Maximum visibility distance, in meters.
Return value
true if the bounding box is within the camera visibility distance; otherwise, false.Last update:
18.09.2024
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