public void AlgorithmBruteDirection()
{
var dataCloud = mConvexHull3.DataCloud;
var points = mConvexHull3.Vertices;
const int X = 128;
const int Y = 128;
mVolume = float.MaxValue;
for (int y = 0; y < Y; y++)
{
for (int x = 0; x < X; x++)
{
float fx = (float)x / (X - 1) * 2f - 1f;
float fy = (float)y / (Y - 1) * 2f - 1f;
float sqLength = fx * fx + fy * fy;
if (sqLength > 1f)
{
continue;
}
float fz = Mathf.Sqrt(1f - sqLength);
Vector3 zAxis = new Vector3(fx, fy, fz);
Vector3 xAxis;
Vector3 yAxis;
ExtMathf.AxesFromAxis(zAxis, out xAxis, out yAxis);
BoxFromNormalAxes(xAxis, yAxis, zAxis);
}
}
}
public static void TestExtMath()
{
float a = 1f;
float b = 1f + 1e-6f;
float c = 1f + 1e-4f;
Debug.Assert(ExtMathf.Equal(a, b));
Debug.Assert(!ExtMathf.Equal(a, c));
Debug.Assert(ExtMathf.Greater(c, a));
Debug.Assert(!ExtMathf.Greater(b, a));
Debug.Assert(ExtMathf.Less(a, c));
Debug.Assert(!ExtMathf.Less(a, b));
Vector3 A = new Vector3(-1, 0, -1);
Vector3 B = new Vector3(1, 0, 1);
Vector3 C = new Vector3(0, 1, 0);
Vector3 D = new Vector3(0, (1f / 3f), 0);
Debug.Assert(ExtMathf.Centroid(A, B, C) == D);
Vector3 xAxis = new Vector3(Random.Range(-1f, 1f), Random.Range(-1f, 1f), Random.Range(-1f, 1f)).normalized;
Vector3 yAxis;
Vector3 zAxis;
ExtMathf.AxesFromAxis(xAxis, out yAxis, out zAxis);
Debug.Assert(ExtMathf.Equal(Vector3.Cross(yAxis, zAxis).normalized, xAxis));
Debug.Assert(ExtMathf.Equal(Vector3.Cross(zAxis, xAxis).normalized, yAxis));
Debug.Assert(ExtMathf.Equal(Vector3.Cross(xAxis, yAxis).normalized, zAxis));
}
public Triangle(Vector3 V, Vector3 N)
{
Vector3 xAxis;
Vector3 yAxis;
ExtMathf.AxesFromAxis(N, out xAxis, out yAxis);
Initialize(V + xAxis, V, V + yAxis);
}
