globes, hahaha... actually, the lit candle is a yummy frosted cranberry smelling candle, and its awesome! the ones behind my laptop are holders that my old roommate left here when she moved out, i need to give that stuff away. (anyone want them? hahaha)
quinn... i'd need to see the footage to really give a proper suggestion, but some things you might want to try would include:
- in the options setting in the tracker panel, there's a pulldown menu that says something like "continue tracking" if accurracy is less than 80%. try changing that percentage to something like 70 or 65 (i wouldn't go much lower than that, though, but try it if you want), or change the pulldown part to say "adapt feature". you could also click on the "adapt feature on every frame" check box. although, when this is checked, it may stay on the area for the entire duration, but you may notice it drifts over the course of the track. it would be slight, but it would be enough to make the track not accurrate. but try it.
- the reason it worked so good on the footage i provided is because the contrast on the areas i tracked was huge. if your footage doesn't have that much contrast in the area you're tracking, take a look at the color channels. if one of the channels has a pretty decent contrast, you can set it to track the RGB or the saturation instead of the luminance (in the options panel).
- another thing you could try is to pre-comp your footage, and in that pre-comp, apply a levels effect to the footage and CRANK the contrast WAY up. then track the pre-comp composition in a different composition. even throw on a hue/saturation and make it greyscale, then crank the levels to get contrast up. totally mess with the footage however you have to to make the area you want to track contrasty, or easy to pick out. then, once you have the track done, you can just get rid of all those effects and use the track like normal.
- or, you could manually move the tracker box on every frame. which sucks, but is sometimes neccessary. be careful with this though, because depending on where you click to grab the box to move it, it does different things. If I ever do a tutorial called "everything you ever wanted to know about tracking", i'd cover this. if you click in the box when the cursor is a black arrow, when you move the tracker box, your track will actually shift at that point in your finished track. if you click directly on the edge of the tracker box, when the arrow turns white, you will change the actual area the tracker is tracking, but the center point will continue on from it's current position. If you click on the little plus sign in the middle, you're only changing the center point, or where it pins the track when it's done, not the area it's searching for. that's all kind of confusing, which is why it would work much better as a video tutorial than a written explanation. and this doesn't even cover what to do when your tracking feature leaves the frame and comes back on later.
i don't if that helps. maybe i'll do the "everything you ever wanted to know about 2D tracking" tutorial.