CompuServe Thread

#Aspect ratio problems

3 messages in this thread
#150920From: Kenneth HoffmanFeb 3, 1995 7:40 PM
Solved the aspect ratio problem when rendering out to high resolution slides. The key to the problem was using a 1.33 image aspect ratio and rendering with the pixel size set to 1.0. Though everything is working fine I don't understand exactly why since the aspect ratio of a 35mm slide is wider than 4/3. But thanks to John Jordan, Kevin Drell, Alan Iglesias and David Mennenoh my circles look like circles instead of water balloons. Ken H
#150930From: CSA/CAFeb 3, 1995 8:13 PM
Kenneth, No, the aspect ratio on a slide is NOT 4/3, just the total image height & width. What you need to be concerned is are the shape of the dots on the white phosphor monitor within the film recorder, used to produce the image in the film recorder, recording onto a 35mm camera back. The dots are square (well, maybe round, but the point is that the height and width are equal). On frame buffers used for video recording, such as the Truevision Targa+ @ 512×486, the dots (pixels) are wider than they are high (at least if overscanning for full-width video). Kevin Krell – Computer Support Associates
#151134From: Kenneth HoffmanFeb 5, 1995 11:38 AM
Kevin, Thanks for your help. I think I get it now. The 4:3 image is centered in the 3:2 frame leaving a border left and right. Ken Hoffman