/// <summary>
/// Convert arrays of unpacked mesh data into polys that can be clipped
/// </summary>
/// <param name="vertices"></param>
/// <param name="uvs"></param>
/// <param name="triangles"></param>
/// <param name="normals"></param>
/// <param name="tangents"></param>
/// <param name="colors"></param>
/// <returns></returns>
private static List <MeshPoly> ArrayToPolys(
Vector3[] vertices,
Vector2[] uvs,
int[] triangles,
Vector3[] normals,
Vector4[] tangents,
Color[] colors)
{
List <MeshPoly> output = new List <MeshPoly>();
for (int i = 0; i < triangles.Length / 3; i++)
{
int j = i * 3;
var newPoly = new MeshPoly();
newPoly.vertices.Add(GetVertexFromArray(triangles[j], vertices, uvs, normals, tangents, colors));
newPoly.vertices.Add(GetVertexFromArray(triangles[j + 1], vertices, uvs, normals, tangents, colors));
newPoly.vertices.Add(GetVertexFromArray(triangles[j + 2], vertices, uvs, normals, tangents, colors));
output.Add(newPoly);
}
return(output);
}
/// <summary>
/// Create a task to clip a new mesh.
/// </summary>
/// <param name="mesh"></param>
/// <param name="clippingPlaneSet"></param>
/// <param name="source"></param>
/// <returns></returns>
public static Task <Mesh> Clip(Mesh mesh, ClippingPlaneSet clippingPlaneSet, Matrix4x4 worldToMeshSpace, Mesh source = null)
{
return(ClipUnpack(mesh, clippingPlaneSet, worldToMeshSpace).ThenOnMainThread((x) => MeshPoly.ContructMesh(x, source)));
}
private static MeshPoly ClipPolyByPlane(MeshPoly poly, MeshClippingPlane plane, Matrix4x4 worldToMeshSpace, List <(Vector3 a, Vector3 b)> newEdges)
