public static void AddUnitTriangle(Mesh mesh)
{
int currentNumVerts = mesh.vertices.Length;
EditedMesh meshEdit = new EditedMesh(mesh);
meshEdit.AddVerts(new List <Vector3>()
{
Vector3.zero, new Vector3(-1f, 0f, 0f), new Vector3(0f, 0f, 1f)
});
meshEdit.AddTriangles(new List <int>()
{
currentNumVerts, currentNumVerts + 1, currentNumVerts + 2
});
meshEdit.CopyTo(mesh);
}
// triangle zero, will mean the first triangle (three triangle indecis) are deleted, triangle index 1, the second triangle deleted
public static void RemoveTriangles(List <int> trianglesToRemove, Mesh mesh)
{
EditedMesh meshEdit = new EditedMesh();
meshEdit.AddVerts(mesh.vertices);
for (int triangle = 0; triangle < CalculateNumTriangles(mesh); ++triangle)
{
if (!trianglesToRemove.Contains(triangle))
{
int startingTriangleIndex = triangle * NumVertsPerTriangle;
meshEdit.triangleIndecis.Add(mesh.triangles[startingTriangleIndex]);
meshEdit.triangleIndecis.Add(mesh.triangles[startingTriangleIndex + 1]);
meshEdit.triangleIndecis.Add(mesh.triangles[startingTriangleIndex + 2]);
}
}
meshEdit.CopyTo(mesh);
}