Utility for clipping polygons. More...

Detailed Description

Utility for clipping polygons.

Public Member Functions
int	ClipPolygon (Int3[] vIn, int n, Int3[] vOut, int multi, int offset, int axis)
	Clips a polygon against an axis aligned half plane. More...

void	Init ()
	Initialize buffers if they are null. More...

Public Attributes
float []	clipPolygonCache
	Cache this buffer to avoid unnecessary allocations. More...

int []	clipPolygonIntCache
	Cache this buffer to avoid unnecessary allocations. More...

Member Function Documentation

◆ ClipPolygon()

int ClipPolygon	(	Int3 []	vIn,
		int	n,
		Int3 []	vOut,
		int	multi,
		int	offset,
		int	axis
	)

Clips a polygon against an axis aligned half plane.

Parameters

vIn	Input vertices
n	Number of input vertices (may be less than the length of the vIn array)
vOut	Output vertices, needs to be large enough
multi	Scale factor for the input vertices
offset	Offset to move the input vertices with before cutting
axis	Axis to cut along, either x=0, y=1, z=2

Returns: Number of output vertices

The vertices will be scaled and then offset, after that they will be cut using either the x axis, y axis or the z axis as the cutting line. The resulting vertices will be added to the vOut array in their original space (i.e before scaling and offsetting).

◆ Init()

void Init ( )

Initialize buffers if they are null.

Member Data Documentation

◆ clipPolygonCache

float [] clipPolygonCache

Cache this buffer to avoid unnecessary allocations.

◆ clipPolygonIntCache

int [] clipPolygonIntCache