Unfortunately, After Effects doesn't have the kind of infinite floor object that 3D applications commonly offer.
That said, I do create floors/walls with very large solids(not 30,000 pixels though) all the time, including shadows from 3D lights, and it usually updates quite reasonably for me. How much RAM do you have on your system?
For example, this Comp here, which not only has quite large floor/wall layers, but also features dozens of light sources arranges as light domes, rendered in about 2 hours on my humble laptop.
2gb my pc has.
Hmm thanks anyway, I'll keep this approach and see how it pans out..
Yes, 2 GB is reallly very low, so it's not suprising your computer drowns quickly.
AE CS4 can take advantage of up to 3.5-4 GB of RAM per core. At the very least, upgrading to 4 GB is a good idea (but Windows XP 32 is limited to 2.7 GB, so Win Vista/Win 7 64, o the Mac OS, would be better).
Although low memory is your primary issue here, using smaller objects as tiles can sometimes help out in such situations. So using multiple 1000x1000 pixel solids as "tiles" to make up your floor, rather than one massive 30000x30000 solid, will allow AE to manage the data a little better.
Also, spend some time working out exactly how much floor space you need. It may be possible to achieve your goal in a much smaller space, perhaps by using a contiguous flat background that LOOKS like the floor stretches off in the distance.
Nice looking work, Adolfo!
I think you're going about this the wrong way. If 30000 pixels isn't enough, then 4 times as many wouldn't be, either. Chances are, you really don't need a huge solid. Instead it may be smarter to find out where actually you want to be at at given points in time and lay out your scene accordingly The illusion of a floor being there is mostly determined by shadow, light sheen and reflection and it should be perfectly possible to get that with just a couple of smaller tiles strategically placed here and there.... You can then easily create a horizon as an elementary 2D layer or using tools such as Trapcode Horizon. Similarly, you can parent a plane to the camera as it moves and feather its edges with a mask to blend it in. Nobody would notice...
Yeah. Thanks all.
thats basically what im doing now. just adding in extra 'tiles' as I go.