Allign: less points gives more cameras, wait, what?

[lugiank]

Let me explayn better:
I have a project with about 400 cameras, and align is behaving strangely.

1st try: allign high, generic, constrain by mask and adaptive fitting enabled, 40000/4000 points limits -> 398 photos aligned

2nd try: allign high, generic, constrain by mask and adaptive fitting enabled, 0/0 points limits (no limit) -> 250 photos aligned.

Why is this happening? It is nonsense to me.

Another thing i noticed is that cameras that didnt align have 0 matces in total (no valid/invalid points), how is this possible? Even in photos very close togheter i get one aligned and the next one (about 20cm in distance when shooted) is not alligned and View Matches display nothing

[Yoann Courtois]

Hi !

Some tips/more details about your data set maybe:
- Are you sure you've processed all pictures the 2nd try ? No disabled pictures ?
- Is the computer enough powerful to handle "no limit" alignement of 400 pictures ?
- May you get the log on your 2nd try and look through where is the problem. Share it if needed.
- How many pictures do you have in total ? Are they all aligned in 1st try ? Is not why ?
- How far if the scene/object  to be reconstruct ? You mentioned 20cm between pictures, but what's the overlap ?