It sounds to me like you might want to start your Photoshop experience with a slightly less challenging project. Most of us started with smaller projects and worked our way up. But, if you must:
You need to know what your output requirements are - so when you start your 36 X 48 inch poster, it's at the proper pixel per inch resolution. That's going to somewhere between 100 and 300 pixels per inch and can drastically affect how big your file is and how easy it will be to work on.
The easiest way to build your file is to have your poster file open, then open the individual files you want to add, and then simply drag them from one document to the other, holding the Alt key down, which is the shortcut for the Move Tool. Each file you drag over will make a new Layer, which can then be Transformed to the size you want, and then masked with a Layer Mask to "crop" them in the new composition.
That's the basics of it. The more files you add, the bigger your overall file will get and the slower your computer will operate. Be sure to save early and save often.
This reminds me of the first real job composite for Sherwood Stereo I did back in 1995 with Ps 3.0 on a first generation PowerMac 7100 and 72 mb of ram with a huge one gig scsi drive for scratch disc. Applying ANY type of filter took at least 30 minutes. Saving took another 30 minutes. The studio was swept very clean back then.
You can also google "photomosaic" and see if there's some free software to help you out.
Be sure to save early and save often.
Yes yes yes.
"Import folder as layers" Photoshop script:
<http://morris-photographics.com/photoshop/scripts/import-folder.html>
Save early, save often. Make a back-up copy!
:)
Oh, and I linked to your first thread because this thread really is just a continuation of the project. It's better to keep the dialogue all in one place. It avoids confusion and makes it easier to find.
The dictionary people still haven't added an 'h' to 'want.'
:)
"This reminds me of the first real job composite for Sherwood Stereo I
did back in 1995 with Ps 3.0 on a first generation PowerMac 7100 and 72
mb of ram with a huge one gig scsi drive for scratch disc. Applying ANY
type of filter took at least 30 minutes. Saving took another 30 minutes.
The studio was swept very clean back then."
[Insert the hybrid sound of laughter and groaning here]
As recently as 2000 I worked for a small local walk-in copy/print shop, and my system was a Power Mac 7300/180; 32 MB RAM. My co-worker/supervisor complained to the owner about how many breaks I took, smokin' cigs and going next door for bagels and coffee, and what not.
He came blasting in the next morning—loaded for bear—with a 12" × 18" poster project for the local theatre company, and stood nearby watching as I opened it and started working on it. First operations: Copy files from ZIP disk to hard drive. Then, open a 40 MB 14"W × 11"H background image and rotate it just a wee bit more than 90°.
I hit the "Go" button to commit to the rotation and button-holed him to walk next door for a coffee, and then out to the sidewalk for a smoke while we talked.
I explained all my breaks, saying that the system was just too underpowered for me to get work done quickly on the type of projects he was bringing to me, and that there weren't really any "busy-work" duties to take care of. I explained to him why—for months!—I had been begging for a bunch more RAM, but he always balked at the cost. He was the owner, after all, and was always looking at the bottom line.
We got sidetracked, and about 30 minutes went by. We walked back in to the shop. Looking at my monitor, we saw the rotation still had about 10 minutes to go. I could almost make out an actual light bulb begin to appear in the æther over top of his head.
He ordered a GB of RAM that afternoon, after asking me to research the best place to get it.
Then he married some booze-hound coke bimbo half his age and moved to
Florida...
Ah, so that's what happened to my last college girlfriend. I always wondered. :)
I'm tempted to relate the tale of working on an 11x17, many-layered composite using Photoshop 4 and 32MB of RAM with a file size that hit ~1GB, but I'll spare you the agony of reading it and myself the pain for remembering the details. That it was possible at all is something of a miracle in itself.
The previous suggestion of setting up a grid, using the Guides feature, is a great suggestion. When you have Snap to Guides activated, it should be pretty easy to line everything up. While it may be possible to automate some sort of importation routine, 120 or so images shouldn't take you too long to do manually, and you'll have complete control over each image.
Clicking on the Move Tool (shortcut - press the letter V) and checking the Layer Auto Select option will help you automatically select layers by simply clicking in the image. I normally uncheck this feature, but for this type of project it can be very helpful.
Again, as previously mentioned, you can use the Free Transform Tool to size images to the grid you set up. Couple of hours - well, maybe a few, and you'll be done.
As for "the quality sucks" you might find the same thing happening in Photoshop. I know that I've turned out many things that suck and I've been using it for 15 years now. But I have also see more artistic people turn out works of art with it.