Hasta La Motion!

now relating to that problem was probably due to the fact i didnt take come countermeasures before doing the actual filming, specifically the input data that PFTrack would preferably need when one is tracking a particular footage, stuff like ‘Principal Point (%), Film Back, Pixel Aspect and Focal Length’.

i assume all these are crucial parameters are what will probably make the track more accurate, and will also indeed help for whatever you plan to do with the tracking, in my case previously, attaching a 3d wireframe headmodel and have that onpar track with the person’s face.

but i was wondering if there is anything more than that i need to know aside from what i have just mentioned? In addition, i would also appreciate it if someone can help me know how to calculate or how to obtain such information, or what information to put in for the tracker.

Thanks, look forward hearing back from you lot 🙂

As a freelancer you are expected to just walk onsite and get going. You may have an hour to get to know the setup….but mostly it is, here is the job, here is your computer let me know when you have something. The more skills you have the better. If you are a compositor but you also know how to edit or have some 3D skills (like I do) you can extend contracts sometimes with this knowledge. I worked with one company last year on a comp gig, then they had some edit work they needed and some 3D, so I got to extend my stay there by a few weeks because I could work on more than what I was originally contracted for. I usually try to land jobs that last a few months or more, but since I don’t have a specific company I work for I will take weekend jobs or jobs that last a few days.

It sounds stressful…but the good thing is, as a freelancer you can actually charge more than a staffer….since you have to not only figure how much you need while your working, but you need to figure out how much you will need to survive between projects…and sometimes that between time can extend a couple months!

The thought of going freelance is REALLY scary and most people won’t attempt it, but if you like working with a variety of people, don’t mind traveling, and can keep good track of invoices it might work out well for you!

As with other threads like this I expect other freelance artists to chime in with answers to new artists questions as well!

I just want to ask something about the srgb standard. I found not a real answer via google so maybe someone here can explain it further.

In the real world, we have linear values of course.

Our eyes are perceptual, so we can see smaller changes in the darks instead of brights. So Our eyes have a "curve" like this:

Our monitor with a gamma of 2,2 (or 2,5 to be correct) darkens the image we are looking at. So for now, a linear image would look to dark on a monitor.

In order to compensate this, a Gamma Correction of 2,2 (or to be correct an inverse Gamma of 0,454545) has to be applied to all the pictures (digicam, video…). Now the "image itself" looks to bight.

But mixed together, the gamma functions cancel out ech other (nearly) and we get a perfect linear image displayed on our monitor, right?

And with our eyes looking at this "linear image", it´s like we would look out of the window, and our perception leads it into something like this:

Okay, so far so good. But, why is in many many articles about sRGB said, that it matches the Monitor Gamma of 2,2 closely? Do they mean the inverse? Because an image loaded with the srgb standard embedded would look way to dark, because it has already a darkening gamma of 2,2 applied and then the monitor gamma of 2,2 darkens in down again. Or am I missing something?

Maybe someone can explain a little but about this further.

Kind regards,

Dez