CompuServe Thread

#Release 2 Raytracing?

15 messages in this thread
#11709From: Yost GroupApr 5, 1992 10:56 AM
3DS output resolution is only limited by the size of your hard disk. – Jack
#11723From: Graphics Software, Inc.Apr 5, 1992 5:11 PM
Jack, All I know is that one of our users (who uses BIG D, 3DS, and AutoShade/RenderMan extensively) told me he could not render anything in 3DS with a resolution greater than about 1600 pixels due to hard disk requirements. Since he is a power user, I am sure he had at least 100+ MB free disk space so something other than the image file itself (maybe shadow maps?) is taking up a lot of disk space. He claimed that rendering anything above 2K resolution (while possible) is just not practical. So I'd be interested to know just what the hard disk requirements would be for a typical 4K x 4K image. Dennis Bragg
#11773From: Yost GroupApr 6, 1992 10:43 AM
Gary can answer that better than I can. There's a file about memory usage in one of the libraries here that details which 3DS elements use up memory. At a guess, I'd say that your user has left the Save-Last-Image parameter On, which forces 3DS to store a HUGE image file on disk while attempting to render. – J
#11830From: Jeff RichardsonApr 6, 1992 11:02 PM
We've frequently rendered with 3DS 1 & 2 to 3000×2000 resolution for slides and even at 4096×2640 for print seperations. It works great!! You do require a fair bit of memory or hard drive paging space. 100 megs should probably cut it depending on the model geometry, and the other settings in 3DS. -Jeff
#11845From: Graphics Software, Inc.Apr 7, 1992 12:59 AM
Jeff, Thanks for the info. I can see that high resolution rendering with 3DS is doable as long as you have plenty of free disk space. Dennis Bragg
#12099From: albert waltnerApr 9, 1992 11:01 PM
I hope that this question does not seem too dumb to answer. You say that you make 3000×2000 images using 3DS and that is impressive. But my question is about making hard copy with those images. Before you output these images to a device, do you gamma correct them? Or do you make them what they should be right in 3DS? I would like to make fairly large color prints and am interested in knowing if any post-processing is really required for best results (or even good results). Thanks for any comments.
#12106From: Greg LoveriaApr 9, 1992 11:38 PM
Hi Albert… Fancy meeting you here (heard from Steve Kennedy lately?) Regarding the hard copy images from 3DS, the easiest way is to send your lower rez tgas to any service bureau (I use Image Center in Roanoake VA). They always rescale the image for 35mm output. It's usually WYSIWYG. If your looking for Iris prints, etc… There was a note about another service bureau a few threads back. The best device independent color I've seen to date, has been from ColorRepro, Inc. in Bainbridge Island WA. Colin Relph operates the lab there and produces most all of the artwork and adverts you see for Aldus PhotoStyler. If you want color seps for print reproduction (for mass production printing of your images) this is the place to head. I've seen the same image reproduced on an Iris printer, a dye-sub printer, a 3M match print proof and on paper (in the magazine adverts). Each image, regardless of output device, was * exactly * on the money from each device. His color correction and gamma procedures rival the expert color systems from Hell, Dupont and Kodak. The address is: Colin Relph Color Repro, Inc. 8280 NE Baker Hill Bainbridge Island, WA 98110 – Greg
#12247From: Jeff RichardsonApr 11, 1992 3:50 PM
Albert, we use 3000×2000 TGA files directly out of 3DS. We typically take a second look at the image in Photostyler, then send it to the imaging bureau we use. We have them image the TGA files to negative film, instead of slide film. The negatives are then processed and printed typically to 8×10's. Many of our clients don't care about having actual "slides", so imaging to negatives is a cheaper (and better quality) method of making prints. -Jeff
#12271From: CSA/CAApr 11, 1992 8:44 PM
Jeff, Could you remind me what imaging bureau you're using for .TGA files? Most of those I know only do slides, not negs. Kevin Krell – Computer Support Associates
#12300From: Greg LoveriaApr 12, 1992 10:02 AM
Kevin, I've had (and seen) excellent results from the following imaging labs: F&S Inc., 1019 14th St., PO Box 748, Columbus, GA 31901 (404)324-6308 Image Center, 1011 Second St., Roanoake VA 24016 (800)433-8829 Contact Fred Morgan at F&S and ask to see their * gorgeous * B size color seps from TGA files. They are awesome. This company specializes in 150 line screen 3M match print proofs. You'll have to see them. Contact Bill Poff or Anne Claire at Image Center. They not only do 35mm slides but also 4×5 transparencies, as well as Canon color proofs (up to wallpaper sizes). Excellent stuff all the way around. – greg
#12336From: CSA/CAApr 12, 1992 6:59 PM
Greg, Thanks for the info. I know the F&S people – that is amazing quality. Kevin Krell – Computer Support Associates
#12311From: Jeff RichardsonApr 12, 1992 12:49 PM
Kevin, we're in Canada, so I don't know if you're really interested….the place is in Winnipeg. They're using a QCR-Z. I kind of figured almost any slide imager could just replace the slide film with a suitable negative film….seems to work well here. -Jeff
#12337From: CSA/CAApr 12, 1992 7:00 PM
Thanks, Jeff. As I said, many of the places won't shoot to negatives, probably because they've got the camera loaded with slide film for most jobs. Kevin Krell – Computer Support Associates
#12317From: MARTIN G FOSTERApr 12, 1992 2:30 PM
Kevin, I know of one in Irvine, CA, called (aptly) Irvine Photo Graphics which will do .tga to negative or slides. They seem to have the latest and greatest equipment and are always extremely busy. I suggest putting them in your Rolodex for all your Orange County customers: Irvine Photo Graphics 17851 Skypark, suite G IRVINE CA 92714 (714)261-8777
#12338From: CSA/CAApr 12, 1992 7:00 PM
Thanks, Martin. Since we primarily cover an area from San Diego through about San Luis Obispo, any info about services local to our customer base is appreciated. BTW, if you know of any service bureaus interested in offering Tektronix Phaser III output for their customers, we've instituted an attractive program for them. Kevin Krell – Computer Support Associates