/// <inheritdoc cref="GridPoint2.GetColor(ColorFunction)"/>
public int __GetColor_Reference(int ax, int bx, int by, int cx, int cy, int cz)
{
var parm = new Matrixf33(ax, 0, 0, bx, by, 0, cx, cy, cz);
var parmInv = parm.Inv();
var pointInUnitCube = this.ToVector3().Mul(parmInv);
var rect = new Matrixf33(ax, 0, 0, 0, by, 0, 0, 0, cz);
var pointInRect = pointInUnitCube.Mul(rect);
var rectX = GLMathf.FloorMod(Mathf.FloorToInt(pointInRect.x), ax);
var rectY = GLMathf.FloorMod(Mathf.FloorToInt(pointInRect.y), by);
var rectZ = GLMathf.FloorMod(Mathf.FloorToInt(pointInRect.z), cz);
return(rectX + rectY * ax + rectZ * ax * by);
}
public Matrixf33 Div(Matrixf33 other)
{
return(Mul(other.Inv()));
}