CompuServe Thread

Autodesk Multimedia Forum · Autodesk 3D Studio

#Hi- Res Rendering

9 messages in this thread

#142267From: JEFF RIETERDec 16, 1994 9:35 PM

I have been using 3dsr4 to produce images for use in print advertising such as magazine ads and brochures. For the most part I have been successful. There is one difficulty I have encountered that I am at a loss about. Sometimes when I render to disk I get unpredicable results in that part of the image is cut off, usually at the top or bottom, although everything that I want in the final image is well within the camera view and the safe frame. This does not happen everytime. The images I am typically rendering have a final output size of 8"X11". I am using a Pentium 66 megahertz machine with only 16megsRAM, but rendering times are not the problem. I would appreciate E-mail from anyone who can offer insight to this difficulty and feel free to post responses in the forum.

#142300From: ALAN IGLESIASDec 17, 1994 3:03 AM

Did you render to a "Null" device, Jeff? Or to a display? Exactly what resolution are you going for? Are you swapping during rendering? -Alan

#142362From: JEFF RIETERDec 17, 1994 1:44 PM

Thanks for the response, I did not render to display, I am going for 5000X3000with 1.0 aspect ratio. You bet it is swapping to the tune of a 60+Meg swap file. Any suggestions …I know get more RAM, Phil Miller suggests at least 16M more. Jeff

#142432From: ALAN IGLESIASDec 18, 1994 10:27 AM

Yup, big-time swapping can pretty much cause all sorts of problems in some systems. I'd at _least_ de-frag the hard drive to optimize Pharlap's swapping operations a bit. Are you using a disk-caching device like SmartDrive? -Alan

#142470From: JEFF RIETERDec 18, 1994 4:17 PM

Thanks- I'll try de fragmenting the drive too. I am not using Smart drive but instead a disk caching that shipped with my Iomega drive, I believe. Would smart drive be better or worse?

#142353From: Phillip L. MillerDec 17, 1994 12:44 PM

Do you get an error message when writing the file? With only 16M, hi-rez is going to be a bit painful for the system. It's possible that only a portion of the image is being put to disk. If you're doing hi-rez often, you'll wnat to be getting at least another 16M or RAM. – Phil

#142361From: JEFF RIETERDec 17, 1994 1:44 PM

Thanks for the advice. No doubt I need more RAM, but I got no error message.

#142468From: will taitDec 18, 1994 3:51 PM

Hi, I do a lot of 3700 x 4200 and up renders and found that I got some cutting off of areas too. Then i started doing low res renders with the exact same aspect ratio to see if I got the same thing. YES. So I now adjust my camera until I get the low res, but correct aspect ratio render to look as I want it then do the high res render and everything is ok. Good Luck Merry Christmas Will

#142469From: JEFF RIETERDec 18, 1994 4:16 PM

Thanks for the info- So am I to understand that u use an aspect ratio other than 1 for renders to print? Someone suggested that if I change the res to proportions that are the same as screen proportions ie same as 640X480.> 5000X3759, instead of the proportions of the page 5100X3300 for 17X11" I will get less clipping. This was just a theory and may not be practical in all situations. I take it this is not the same as changing the aspect ratio in lo res as you do? What do you think?