public FMatrix(FPlane InX, FPlane InY, FPlane InZ, FPlane InW)
{
XPlane = InX;
YPlane = InY;
ZPlane = InZ;
WPlane = InW;
}
public FMatrix(EForceInit Init)
{
XPlane = new FPlane();
YPlane = new FPlane();
ZPlane = new FPlane();
WPlane = new FPlane();
SetIdentity();
}
/**
* Calculate the projection of a point on the plane defined by counter-clockwise (CCW) points A,B,C.
*
* @param Point The point to project onto the plane
* @param A 1st of three points in CCW order defining the plane
* @param B 2nd of three points in CCW order defining the plane
* @param C 3rd of three points in CCW order defining the plane
* @return Projection of Point onto plane ABC
*/
public static FVector PointPlaneProject(FVector Point, FVector A, FVector B, FVector C)
{
//Compute the plane normal from ABC
FPlane Plane = new FPlane(A, B, C);
//Find the distance of X from the plane
//Add the distance back along the normal from the point
return(Point - Plane * Plane.PlaneDot(Point));
}
public FMatrix(FVector InX, FVector InY, FVector InZ, FVector InW)
{
XPlane = new FPlane();
YPlane = new FPlane();
ZPlane = new FPlane();
WPlane = new FPlane();
this[0, 0] = InX.X; this[0, 1] = InX.Y; this[0, 2] = InX.Z; this[0, 3] = 0.0f;
this[1, 0] = InY.X; this[1, 1] = InY.Y; this[1, 2] = InY.Z; this[1, 3] = 0.0f;
this[2, 0] = InZ.X; this[2, 1] = InZ.Y; this[2, 2] = InZ.Z; this[2, 3] = 0.0f;
this[3, 0] = InW.X; this[3, 1] = InW.Y; this[3, 2] = InW.Z; this[3, 3] = 1.0f;
}
/** @param OutPlane the bottom plane of the Frustum of this matrix */
public bool GetFrustumBottomPlane(out FPlane OutPlane)
{
return(GetFrustumBottomPlane(ref this, out OutPlane));
}
//[MethodImplAttribute(MethodImplOptions.InternalCall)] extern static bool GetFrustumBottomPlane(ref FMatrix This, out FPlane OutPlane);
/// <summary>
/// Constructor
/// </summary>
/// <param name="srcProjMat">source projection matrix to premultiply with the clip matrix</param>
/// <param name="plane">clipping plane used to build the clip matrix (assumed to be in camera space)</param>
public FClipProjectionMatrix(FMatrix srcProjMat, FPlane plane) :
base(E_CreateStruct_FClipProjectionMatrix_FMatrix_FPlane(srcProjMat, plane), false)
{
}
/// <summary>
/// <para>Copy Constructor. </para>
/// <param name="P">Plane to copy from. </param>
/// </summary>
public FPlane(FPlane p) :
base(E_CreateStruct_FPlane_FPlane(p), false)
{
}
/// <summary>
/// Constructor. Updated for the fact that our FPlane uses Ax+By+Cz=D.
/// </summary>
/// <param name="plane">source plane for mirroring (assumed normalized)</param>
public FMirrorMatrix(FPlane plane) :
base(E_CreateStruct_FMirrorMatrix_FPlane(plane), false)
{
}
/// <summary>
/// <para>Copy Constructor. </para>
/// <param name="P">Plane to copy from. </param>
/// </summary>
public FPlane(FPlane P) :
base(E_CreateStruct_FPlane_FPlane(P), false)
{
}
/// <summary>Draws a debug plane.</summary> public extern static void DrawDebugPlane(UObject WorldContextObject, FPlane PlaneCoordinates, FVector Location, float Size, FLinearColor PlaneColor = default(FLinearColor), float Duration = 0.000000f);
/**
* Calculate the projection of a point on the given plane.
*
* @param Point The point to project onto the plane
* @param Plane The plane
* @return Projection of Point onto Plane
*/
public static FVector PointPlaneProject(FVector Point, FPlane Plane)
{
return(Point - Plane * Plane.PlaneDot(Point));
}
/**
* Mirrors a vector about a plane.
*
* @param Plane Plane to mirror about.
* @return Mirrored vector.
*/
public FVector MirrorByPlane(FPlane Plane)
{
FPlane TempPlane = Plane * (2.0f * Plane.PlaneDot(this));
return(this - TempPlane);//new FVector(TempPlane.X,TempPlane.Y,TempPlane.Z);
}
static extern bool GetFrustumTopPlane(ref FMatrix This, out FPlane OutPlane);
