Hasta La Motion!

I just seen an effects shot I thought was interesting, but a little confusing. Or, maybe I’m just not seeing the trick.

It’s an exterior shot moving in a circle until it stops at about 90 degrees and begins moving toward the door of a house, a little wobbly not much though. Its an intro to a movie…

What I am trying to figure out is if the entire door is cg. As the camera begins to get closer it gets closer and closer to the door eye hole and goes through it to the interior home.

It shook my mind up a little and made me think of 3d camera movement. Is it possible to match the camera movement of 3d elements to the camera movement of footage at a certain point in time? So in this case once it gets too close to the door stop and the 3d camera takes over? How exactly would you motion track a 3d camera to footage movement?

What other way could this effect have been done?

If the door is not cg then how would the dp get the zooming shot for the door eye hole 3d camera animation? At least with no "real"
door present I figure it would make the camera moving in that much easier having nothing in the way. This way it would be simpler to comp in the door and track it, then as it gets closer the inside door hole is revealed and the interior home easily comped in behind it.

It’s obvious the door eye hole is cg but the 3d camera movement within the hole is a mystery right now how it is combined with footage camera movement, "if" that’s the case.

Read over this a few times and let me know if this makes any sense. Please feel free to post some thoughts.

Thanks!

*If your curious in seeing the shot it’s the beginning in Masters of Horror: Family (Se. 2, Ep. 2).

Hi, I dont know if anyone has had similar problems when using PFTrack but I recently shot something quickly as a test for matchmoving with my Canon HV30 with a Wideangle lens (quite proud of owning that Raynox 0.66 :D) in 50i and whilst I’m aware of matchmoving software (motionblur being its enemy) I thought I would give it quite a test and be abit ambitious when shooting.

The shoot was very simple and short, it was just me holding my cam and filming the road outside my house, panning from left ro right and a couple of zooms but nothing drastic I believe. When I created an image sequence of this simple shoot and imported it to PFTrack, I adjusted the parameters alittle inorder to give me a good track and deinterlaced it so I would get 25p. However after the tracking, to my surprise the solving proved to be difficult once again for me despite how simple it was, it kept failing at certain frames where the camera pans from left to right resulting the most motionblur but even I wouldnt consider it that bad and there was still some tracking points on it, especially when I even manipulated the image of the footage like the contrast and sharpness to get more of a solid track for complete solving, but to no avail.

After trying this and after and many trackings later, I went and seperated the fields of the footage, thus I would get 50p. I tracked with this and to my surprise the tracking result was MUCH more solid and the solving actually solved the footage, the downside to all of this that it took waaay too long. Because of this, I dont understand why is became so successful, despite there being more frames, but the place where the track was weak and solve fails, there was a big improvement. This now questions me on how will I ever work with matchmoving footage of this kind if shot progressively (24p or 25p)?

On a final note, even with the 50p track and success solve, when playing back the footage within PFTrack, I have a feeling that there is some drift, how would I fix this if it ever was the case?

I hope you understand what my problem is and I would really appreciate it if someone helped me on this. Thanks and look ofrward hearing back guys (and gals hopefully) :thumbsup:

Hi, we’ve just finished a low budget feature film and we need some help.

We’ve done all of our vfx in house with our director doing all of the vfx. At this point it looks like we’re going to be short about 10 shots for our delivery date of Mid-January. The 10 shots are varying in scope but we are looking for some vfx artists or a vfx company to come in and help us finish off the film with these 10 shots while the director finishes the other vfx.

The vfx shots vary in scope from compositing, to a bit of roto and 3d. The exact shots can be discussed with the director.

The film was shot for very little money and we have a sale that looks like it will be pending with Lionsgate. We can only offer credit on the film. We are going to be able to finish this ourselves but it will take us an extra month which we’d like to avoid if possible.

The project is very cool and we’re looking for VFX artists and/or companies for future work we have coming up. We have a couple projects in with large studios right now that look like they’ll be greenlit shortly and can’t do that stuff in house anymore so it’d be good to set up a relationship with a new company and something relatively easy.

Let me know if this interests you.

Hello ,

is it possible to postion lights and cameras by means of looking through them and then move the camera or light (like Maya)?
thanks,

bern

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