Okay guys, I'm here in after-effects and this version looks like After Effects CC
2015. Probably needs updating but that's okay I'm sure none of the features are
so major that you won't understand what's going on here if you have the
newer version so what we're going to do is do a new project and all we need to
do is right click over here in our project tab and import some footage we
can just do one file navigate to where you want it okay find your footage that
we downloaded and saved and import it in to after-effects drag it down into your
composition here we go we have a new composition with our footage in which is
great you hit spacebar it will go through the video fantastic now one
thing I always do with this footage as I'm camera matching it is export it as a
JPEG sequence it will work better in Macs that way so we need to do that with
our footage so we can use it in Macs as a background and play it in there if you
don't know how to do that you can just take this composition all it is is the
video that we imported you can go to composition we can go to where is it add
to render queue okay and in your render queue here you can leave all the
settings the same but what we want to do is go to quick word says lossless go to
AVI instead of avi avi we want to do JPEG
sequence and everything else should be fine for what we need hit OK make sure
to save it to the right place okay I've already got it saved as a JPEG sequence
so save it into a folder that you can find again hit render and it will go
through and save each frame of this as its own JPEG okay so you'll want to do
that and you will also want to now use this to camera match now you can camera
Maki the JPEG sequence or you can just camera match the actual footage that we
brought in right here either way the camera tracking is going to be the same
obvious to find camera tracking we can go over
to here that's not what we want go to effects and presets and do 3d camera
tracker pops up right there and all you have to do is drag and drop into here
and it will take a while it will analyze in background step one of two so you'll
see up here it will be telling you where it's at frame 24 of 1281
1% done so this will take a while so it's remaining three minutes okay and
when it's done and we'll go into step two which will take maybe about half as
long again so maybe four and a half minutes total for this and I don't have
a supercomputer or anything here so maybe if you've got a heavy-duty 3d
rendering computer and a great graphics card and tons of memory then maybe it
will render a lot faster maybe you have something more basic than my computer
and we'll run it a lot slower but that's okay that is the price we pay to do cool
3d graphics you guys probably already know that so let that do its work and
when it's done we will have some camera tracking data now one thing to remember
is well one thing to know and to be aware of is that sometimes this fails
and it's sometimes really hard to know why but if you break down the video into
different parts sometimes that helps so if you analyze kind of a shorter part of
the video and then do another and then take from that frame on and do another
section and analyze that that's one way to kind of solve the problem sometimes
if you get more contrast in the video that can help after-effects and if you
search around in Google some of the areas that come up it's kind of
convoluted and hard to figure out exactly why some things don't work
fortunately this video does work and I've in my professional day job I've
gotten tons of these to work with After Effects so it's a solid camera tracking
software but for whatever reason certain videos just aren't having it so keep
that in mind this
you however will work just fine at least it does on my computer maybe it's
different per system I don't know but just be aware that that does happen
sometimes okay we're at 68% I'm going to pause the video and let this do its work
and come back when it's done okay you can see it's solving camera right now so
that's step two and pretty soon here we will have everything we need okay boom
there it is check that out see all those little dots out there
those are basically just knows that it has tracked if we pan through them it's
having a hard time with the refresh rate but when you let off see all the dots
are in the right place see it's tracking those little rows now
if you go over one of them you'll see that little white triangle in there one
two three you see a triangle forming between that and this big red target
okay what that's showing you is that it's figured out there's a 3d plane
there between those three dots okay it's creating basically a polygon and that
big red target is following that plane so it knows that that's a flat ground
out there you'd figure that out in three dimensions see the targets not perfect
all the time it's pretty close okay now some cool things you can do you can
right-click on this create text and camera okay so that text right there is
now linked to that node see that so it's tracked that text is tracked and
linked to that little node right there and you can place that text however you
want and in 3d the camera will move the text properly in relation to the video
behind it so that's pretty cool see we're going to put a 3d model that's
basically linked to the same tracking data so it will follow the camera
properly so if I get some of this in my cashier by hitting spacebar that green
line will show me what's storing in memory and you can see that text just
sits there on that video perfectly the thing of beauty
okay so that's kind of what camera tracking does for us pretty awesome now
we're going to use those nodes in a specific way when we go into 3d max and
it will it will kind of show us where to place our models we'll use them as
guides basically so cool look at that camera tracking is working just
perfectly that text just sits right there now if you wanted to for example
take this text so I can select it I'll just selected here okay you could
scale it down you can rotate it in three dimensions you can do whatever you want
to it see that so say you wanted it to look like a little squirrely there
okay and it will still track just perfectly now think about it if you took
a 2d tree cutout or something link it to this node here then you could
have a tree cutout sitting there right there in that field just perfectly so
you could even composite 2d stuff in this way put it in there and it would
generally kind of work so this is really cool I like this we're going to take all
these nodes now and export them into 3ds max eventually and that's how we will
put our 3d imagery into this video so stay tuned for that that's the good part