First, are there fixed objects in your scene that do not move like set pieces or tracking marks on the greenreen? If not the likelihood that you can get a good track is very small. An actor moving around on a greenscreen gives the tracker nothing but a moving actor to track and you can't solve for camera movement if there is no fixed geometry in the scene to track.
Have you been successful in using 3D camera tracker on other shots?
Is AE up to date?
Are you new to AE?
If the answer to these questions is yes then your scene probably will not track.
Well, have you actualyl enough consistent markers in the scene? Doesn't seem to be the case because you didn't plan your shoot properly...
Im not THAT new to after effects, like i recently recorded my street in first person and changed all the houses to buildings and it motion tracked really smooth and nice. But i have never motion tracked something in front of a green screen. My AE is up to date too.
I actually need ideas on what those x's or markers actually go for like why are those markers where they are? I tried making a target to see if itll motion track that but i guess it doesnt
And yea i had a huge amount of markers all over but like when i added a null object and camera,it would be there then not move with the markers. So i do have alot of markers to motion track with,it just doesnt motion track
This is the video im trying to motion tracking i can kinda figure out why it wont work,but i reall want an image to motion track with our movement on the green screen. Please guys do you have any idea what i can add to make this work?
You might have some success tracing the shot if you cut it up into pieces. The first part, the first 15 seconds or so may track, but the rest of it starts to fall apart very quickly. Your big light/lens flare is hugely problematic. The lack of tracking markers on the green screen is also hugely problematic.
I would approach this shot differently. I would cut the shot into three pieces, stabilize the middle segment so that the set piece on the right side of the frame does not move, then do the key and insert a fixed background. I would then remove the stabilization and add the motion to the background using an expression.
The last part of the shot where the hand with the gun comes in is a huge problem. No reference for tracking. You'll have to do that part by hand.
Every one of your problems are a result of a complete lack of understanding of motion tracking, match moving, and production planning. If you want that kind of free flowing camera move you have to meticulously plan every element. The key to pulling off that kind of a sequence is NOT simple 3D camera tracking, it's motion tracking and background replacement.