Forum: Poser - OFFICIAL


Subject: Pixel aspect -> rendering 16:9

botti opened this issue on Mar 06, 2001 ยท 10 posts


Robert Belton posted Fri, 09 March 2001 at 12:20 PM

Multiple versions. Real world logic for live action is shoot in 16:9 and take care to frame the important action centrally for 4:3. Then cut off the sides for 4:3 transmission. An example of this is Stargate SG1, in full screen 4:3 on C4 in the UK (with a different title sequence) but a very nice 16:9 on DVD. I don't see why resizing the anamorphic version shouldn't work. The 4:3 should be about the same resolution but with the sides cut off and the letterbox would have the same horizontal res but resampled vertical res, but as you're downsampling it'll be OK I think. I'd say try some test frames and see what you get. Best quality would be seperate renderings. One squeezed and one full frame height but widescreen proportions, then crop this one for 3:4 and reduce it with black bars for letterbox. At 2.5 mins (3750 frames at 25fps) it seems possible. (The hard bit is the animation -- the rendering usually just needs time and processing power) No field renders in Poser that I've found. but two things to consider here. Classical animation shot on film is usually 2 frames per cell for most things maybe going to 1 frame a cell for fast motion to smooth it a bit. (now only 1875 different frames for 2.5 mins, on a ninety minute feature this really mounts up.) Apparently the information on DVD disks is at 24 frames non interlaced. The hardware sorts out how it should send it to the TV. (source -- Quantel Digital Fact Book Edition 9). (How region 0 disks can work I suppose). So for DVD-video field rendering doesn't seem to make sense. (3600 frames at 24fps for 2.5 mins) Motion Blur. Can't recommend anything myself. It seems something that sanely should be handled as a post-rendering process via a plug-in. It'd be best to blur only those items moving and the amount of blur depending on the speed of movement across the frame. Maybe you should post a request for motion blur help as a seperate topic here or in the 3D forum. Other Words of Wisdom. Don't underestimate sound. It can have a huge impact on the percieved quality of your project but often gets forgotten in favour of the visuals.