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_polz_
10-31-2003, 10:30 AM
hi!

I need to do A1 renderings for a presentation that will be plotted.

and therefore i would like to know if somebody has done such a high resolution rendering out of MAX, and if there are some problems iŽll be facing regarding this.

thanks for any input!

_polz_

Clanger
10-31-2003, 12:37 PM
The highest I've ever rendered is 7500 pixels wide and it coped with that no problem, so long as you have enough swap file space available you can do it.

Usually the biggest problem is render time, a big scene with lots of reflectivity and God forbid raytraced shadows and or GI and the days start to fly by.

If you hit a render time wall just drop the res down and blow it up in Photoshop with a bit of unsharp mask, I guaranty no one will tell the difference, I've found very little point in going beyond 5000 pixels unless the scene is one big mass of tiny fine lines! Even then Unsharp can magically get them back often.

Saku
10-31-2003, 12:50 PM
Creating large renderings are quite dependent of your scene complexity, but I'll put some lines that has helped me to make A1 size renderings and larger. (usually 150 Dpi)

1. In Customize -> Preferences/Rendering tab, increase Bitmap Pager Memory Pool size to something like 200000-500000. This allows rendering to use more memory.

2. Try to decrease memory usage. Like if you have tons of lights with shadow map shadows, decrease shadowmap size. And don't use huge texture files.

3. Render whole image in few separate parts using Crop -rendering option. And stitch images afterwards in your 2D software.

For me step 1 makes most for it, but if rendering has to be really huge, like billboard, then I render it in few separate parts using step 3.

I hope this helps you enough to get job going on for now.

BTW, I just some time ago made rendering 22000x15000 pixels.

nobrain
10-31-2003, 07:36 PM
I can share my own experience on this, I recently did 12 foot by 8 foot banner, first of all it was last minute we literally got the job at 5 in the evening and had to do turn around of 12 hours. meaning the image needed to be ready for print the next morning. I didn't have time to research and 6500 pixels was my max render size. This had to be enlarged roughly 4 - 5 times its original size in photoshop to fill the canvas which was only half of the specified dimension so it was 6 x 4 at 300 dpi. The photoshop file was 1.5 gig in size and took 20 minutes to save and 15 minutes to scale the rendered image to the right size. The photoshop file scaled twice its size at the printer, and when it was all said and done it was quite impressive. Since you had to be standing at 8-10 feet back to get any clear view of the entire mural you really couldn't notice any blemishes in the quality of the work, sure if you stand 10 inches way all you really see are blotches of color. Oh and it was a composited render while the actual models rendered out at 6500 pixels the backdrop original size was 2400 x 1700 in jpg format.

_polz_
11-03-2003, 07:39 AM
thanks guys!

your tipps are very good!

especially the "1. In Customize -> Preferences/Rendering tab, increase Bitmap Pager Memory Pool size to something like 200000-500000. This allows rendering to use more memory."-tipp seems to make sense.

thanks again.... will tell you how it was, perhaps iŽll have some other points to tell too.

cheers!

_polz_

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