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I am new to blender, I recently started to learn VFX.

I get an issue with tracking. I keep getting those 2 errors : - Failed to solve the motion: most likely there are no good keyframes And

At least 8 common tracks on both keyframes are needed for reconstruction

I tried with many different video sequences, tried manually add tracker, detect trackers automatically, I even tried with one sequences that had tons of trackers but still the same error. Could you give me a hand? enter image description here

Another image enter image description here

This seems a lot of trackers but i tried it to see what was up, usually I only add like 20 trackers enter image description here

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2 Answers 2

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I think I found the solution. See when I was adding a sequence, for some strange reason, it was not starting at frame 1, I mean I had to change the start frame to 250 and the frame offset to 1, so I think that messed things up, now I do not have that frame problem so all the track works well

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Try to cleanup your tracks with different error threshold from high to low. You have too many unnecessary tracking points. You need at least 8 good trackers, but having way too many might make the process less accurate. See: How can I get better results when doing camera motion tracking?

Then if Keyframe checked option won't work correctly, try to set the best key range!

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  • $\begingroup$ how do you do that? And for info, I even went as far as selecting 2 keyframes next to each other (frame 1 and frame 2) and still got that error, is it a blender 2.81 error? $\endgroup$
    – Joaquim Antonio Kapel
    Commented Nov 29, 2019 at 1:14

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