OK, you're going to LOVE this. And no, I haven't tried it, but it just
might work.

First, you're going to render at 1/4 res 4 times. Here's how: Take your
camera Horizontal FOV and mentally divide that by 18000, then take your
Vertical FOV and divide that by 4200. (I'm assuming you're working with
square pixels.) Remember these values. OK, render the first pass at
4500x1050. For the second pass, add the horiz FOV/18000 value to the camera
heading. Again render at 4500x1050. 3rd pass, put the heading back and add
the other value to the pitch. 4th pass, add both values to heading and
pitch. (um, my math may be off, you might need to divide the FOV's by 2,
first...) You should be, in effect, shifting your renders by one hi-res
pixel with each pass.

Take these into photoshop, and put them into 4 separate layers, then change
the interpolation value to Nearest Neighbor and scale up to 18000x4200. Now
for the fun part. Make a 2x2 pixel image, and color one corner dot white,
and the others black. Do this 4 times, using different corners each time.
Select the one with white in the top left corner, and define that as a
pattern. Now in the big image find the 1st pass layer, add a layer mask and
then fill that mask with the pattern you just defined. Do the same thing
with the other layers, but use the corresponding 2x2 patterns depending on
which pass you're adding a mask to. Pass 2 needs white in top right corner;
3 gets bottom left, 4 gets bottom right. Flatten image.

Theoretically, this should allow you to render something Ginormous. If it
works, please let me know. ;-)

Or you could just do one render at 1/4 res, and scale it up. You'd be
amazed at how much you can sometimes get away with.

Rich Helvey
Access Hollywood
NBC
--I believe you should live each day as if it is your last, which is why
I don't have any clean laundry because, come on, who wants to wash
clothes on the last day of their life?





> -----Original Message-----
> From: mcrenshaw@...
> [mailto:mcrenshaw@...]
> Sent: Tuesday, June 05, 2001 2:29 PM
> To: lw3d@yahoogroups.com
> Subject: [LW] Resolution Question Revisited. HELP!!!
>
>
>
>
> After much frustration trying to render a 18000x4200 image for this
> monster backdrop it has become obvious it ain't going to work. In
> response to my earlier post several replies mentioned breaking up the
> render into smaller pieces. I have not found a way to do this and
> keep the pieces aligned. When I try limited region, LW wants to
> buffer all of the image even outside of the region...same result as
> trying to render the whole image. I tried using a smaller render as a
> background image to align the camera with but it didn't work. The
> perspective changes too much.
>
> Any proven methods or suggestions would be apreciated.
>
> Thanks, Mark
>
>
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