gl3n.frustum

Note:
this module is not completly tested!

Use with special care, results might be wrong.

OUTSIDE
INSIDE
INTERSECT
Used as flag to indicate if the object intersects with the frustum.

struct Frustum;


LEFT
RIGHT
BOTTOM
TOP
NEAR
FAR
Used to access the planes array.

Plane[6] planes;
Holds all 6 planes of the frustum.

pure nothrow @safe this(mat4 mvp);
Constructs the frustum from a model-view-projection matrix.

Params:
mat4 mvp a model-view-projection matrix

pure nothrow @safe this(Plane[6] planes);
Constructs the frustum from 6 planes.

Params:
Plane[6] planes the 6 frustum planes in the order: left, right, bottom, top, near, far.

pure nothrow @safe int intersects(AABB aabb);
Checks if the aabb intersects with the frustum.

Returns OUTSIDE (= 0), INSIDE (= 1) or INTERSECT (= 2).

bool opBinaryRight(string s : "in")(AABB aabb);
Returns true if the aabb intersects with the frustum or is inside it.


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