public static void CreateFill(float[] points, int numPoints, Vector3 offset, ref GPStroke subMesh)
{
Vector3[] p3D = new Vector3[numPoints];
for (int i = 0; i < numPoints; i++)
{
p3D[i].x = points[i * 5 + 0];
p3D[i].y = points[i * 5 + 1];
p3D[i].z = points[i * 5 + 2];
}
Vector3 x = Vector3.right;
Vector3 y = Vector3.up;
Vector3 z = Vector3.forward;
Matrix4x4 mat = Matrix4x4.identity;
if (numPoints >= 3)
{
Vector3 p0 = p3D[0];
Vector3 p1 = p3D[numPoints / 3];
Vector3 p2 = p3D[2 * numPoints / 3];
x = (p1 - p0).normalized;
y = (p2 - p1).normalized;
if (x != y)
{
z = Vector3.Cross(x, y).normalized;
x = Vector3.Cross(y, z).normalized;
Vector4 pos = new Vector4(p0.x, p0.y, p0.z, 1);
mat = new Matrix4x4(x, y, z, pos);
}
}
Matrix4x4 invMat = mat.inverse;
Vector3[] p3D2 = new Vector3[numPoints];
for (int i = 0; i < numPoints; i++)
{
p3D2[i] = invMat.MultiplyPoint(p3D[i]);
}
Vector2[] p = new Vector2[numPoints];
for (int i = 0; i < numPoints; i++)
{
p[i].x = p3D2[i].x;
p[i].y = p3D2[i].y;
}
Triangulator.Triangulator.Triangulate(p, Triangulator.WindingOrder.CounterClockwise, out Vector2[] outputVertices, out int[] indices);
Vector3[] positions = new Vector3[outputVertices.Length];
for (int i = 0; i < outputVertices.Length; i++)
{
positions[i] = mat.MultiplyPoint(new Vector3(outputVertices[i].x, outputVertices[i].y)) + offset;
}
subMesh.vertices = positions;
subMesh.triangles = indices;
}
public static void CreateStroke(float[] points, int numPoints, int lineWidth, Vector3 offset, ref GPStroke subMesh)
{
FreeDraw freeDraw = new FreeDraw();
for (int i = 0; i < numPoints; i++)
{
Vector3 position = new Vector3(points[i * 5 + 0] + offset.x, points[i * 5 + 1] + offset.y, points[i * 5 + 2] + offset.z);
float ratio = lineWidth * 0.0006f * points[i * 5 + 3]; // pressure
freeDraw.AddRawControlPoint(position, ratio);
}
subMesh.vertices = freeDraw.vertices;
subMesh.triangles = freeDraw.triangles;
}