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Autodesk Multimedia Forum · Hware/OpSys/video

#Aspect Ratios

11 messages in this thread

#101582From: gregory v. casonMay 13, 1994 6:46 PM

I'm going to be rendering some FLC files in 320×240 resolution (don't ask…B-) Does anyone know the correct aspect ration to use, or the formula to calculate this. The FLCs will be displayed as part of a screen that will be in 640×480. Thanx, Greg Cason

#101598From: John EllisMay 13, 1994 8:35 PM

Greg, The correct ratio should be the same as 640×480 which is 1. I once knew how to calculate ratio's but as most of them are already in my head, I've forgotten how to do it. <g> -JE

#102356From: gregory v. casonMay 17, 1994 6:29 PM

The correct ratio should be the same as 640×480 which is 1. I once knew how to calculate ratio's but as most of them are already in my head, I've forgotten how to do it. <g> Thanx much. (Math is icky, isn't it? B-)

#102400From: John EllisMay 17, 1994 11:04 PM

>> Math is icky, isn't it? << Especially for those of raised on the "new math". <g> -JE

#102667From: Don LandisMay 18, 1994 7:29 PM

new math <> 5-A where A > three cubes – 2 rectangles True or false? or, to some around here, new math is waiting for the cash register to figure the change from a dollar when the bill is 50 cents. And the cashier's job description reads college degree required. <BG>

#101640From: John TissavaryMay 14, 1994 12:56 AM

Since computer pixels are square, you'll want an aspect ration of 1.0 The formula for NTSC (and I think it works for PAL, too) is HEIGTH divided by WIDTH times 1.3333 John Tissavary (LUNA cie)

#102357From: gregory v. casonMay 17, 1994 6:29 PM

Since computer pixels are square, you'll want an aspect ration of 1.0 The formula for NTSC (and I think it works for PAL, too) is HEIGTH divided by WIDTH times 1.3333 Super. Thanks for the info. Maybe in the next upgrade, this will be automatic.

#102633From: John TissavaryMay 18, 1994 5:41 PM

I can be sort of automatic… just edit your 3ds.set file to have the four most used resolution/aspect ratios, then when you do RENDER/SETUP you just have to push the button with the right resolution for your job, and bingo!, you're in buisness.

#101671From: Don LandisMay 14, 1994 4:56 AM

Set the AR for your output monitor of 640×480 which is most likely 1.0 (square pixels) The 320×240 is half values or quarter screen but the AR is still 1.0 (square pixels). If you rendered to another resolution size such as 320×200 a non-multiple res size then the AR would have to be interpolated to maintain picture perspective.

#102358From: gregory v. casonMay 17, 1994 6:29 PM

Thanx for your reply.

#102038From: CSA/CAMay 16, 1994 2:08 PM

Greg, Aspect is 1.0 for 640×480, same for a quarter screen of 320×240. All square pixel stuff 1:1. Kevin Krell – Computer Support Associates