need advice for 3d matte

[riktor]

Im currently working on a demo reel piece and Im having trouble preping it in photoshop. What Im trying to achieve is a Spiderman esque shot with a camera panning around a piece of a high rise. A character will be standing on this piece and looking down (if I have time for more then just a mockup of the character) But the point is to show off the environment and I intend on making a large matte projected on geometry so I can do a parallaxing ending camera move down toward the end of the clip. Here is a link to the maya playblast avi (Let me know if you need another format). http://www.blurred-pixels.com/mp_images/pb.avi

So as you can see its a rather large move, but the only thing that really needs to be fully 3d is the mockup of the FG building the rest can be projected or cylinder mapped for that matter except the bottom buildings in which I will eventually animate the camera moving down into a bit. So my plan of attack was this, pick some key points in the animation and render them out with a Image based lighting sky dome and a Final Gather solution at triple 720p Rez. Then photomerge them in photoshop and overpaint the matte over the fully merged renders. From there I would take those same key renders and make camera duplicates that would project that portion of the whole matte back on to the geometry. There some issues with this though, for some reason photo merging is not working. It gives me errors about not being able to merge all the images and then poorly processes what it can do sometimes not at all. Im not adding any sort of perspective assement or anything since that may cause projection issues yet PS will not correctly merge the images. Now before you ask, Im doing this for the main reason of maintaing perspective through the painting and to create a overall large painting that can put into a portfolio or displayed in an other the video means for breakdowns and such.

So is there a better way to approach this or is it that I need more detail or color information to complete the photomerge? If anyone can offer an approach to doing this correctly I would greatly apperciate it.

And before anyone asks the foreground building is not part of the key renders because of its ability to damage the photomerge. As for the rest there really isnt much if any parallax at this point so it shouldn’t hurt the photomerge because of that, though parallax will be a factor on the final.

Thanks for the help in advance.

[chris]

forgive the obvious question, but why not render it all in 3D?

//gD

[y murali]

I guess because Im focusing on matte painting for my reel, in production though I will say that Im pretty sure a majority of this shot would be 3d… but any studio can toss more cpu power at rendering than I have to offer.

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