I must have missed the definition of this in the manual. I have been told variously to always use this, as well as to never use this. What is it? What does it do?: When should it be used?
Thanks! And Happy New Year to all!
Perform Non-Square Pixel Rendering
Moderator: Ken Berry
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maddrummer3301
- Posts: 2507
- Joined: Fri Dec 10, 2004 10:24 pm
- Location: US
Actually neither one is a square pixel. Both 4:3 and 16:9 both use non-square pixels. Get out your calculators and you will see that neither 720x480, nor 720x576 come out to 4:3 or 16:9, but those are the dimentions used for both formats.
I have always wondered about square pixel reference because stills use square pixels, but video does not.
I am watching this just to see if I can get a good explanation too.
I have always wondered about square pixel reference because stills use square pixels, but video does not.
I am watching this just to see if I can get a good explanation too.
Bruce Bennett
VideoStudio 11+ (started with VS5)
PhotoImpact 12 (started with PI11)
VideoStudio 11+ (started with VS5)
PhotoImpact 12 (started with PI11)
-
maddrummer3301
- Posts: 2507
- Joined: Fri Dec 10, 2004 10:24 pm
- Location: US
This is how I change from 4:3 to 16:9 aspect ratio using VS9.
The video must be true 16:9 to start with.
When I import a 16:9 aspect ratio from a sony recorder the import
module assigns it as 4:3. So does MF4 and Nero. Probably a bug in my sony dvd recorder (don't know). The Aspect Ratio is definitely 16:9 widescreen recorded on a Canon DV unit transferred via DV firewire into the Sony unit recording in -VR mode.
If played back on a dvd player, software or hardware the dvd plays the correct aspect ratio.
Using the importing feature of VS9 the video is assigned 4:3 Aspect Ratio.
To correct this I goto Share -> Create Video file -> Custom settings -> Options and set the Video & Audio Properties to match the source EXCEPT for the aspect ratio which I change to 16:9.
On the first tab of the custom settings I "Uncheck" "Perform non-square pixel rendering" and leave "Perform SmartRender" Checked "On".
After the file is rendered I import it etc or MF it for dvd.
The down side of this is I have to smart render the file but a 2.2 gig file to convert to 16:9 takes about 3 minutes.
It does put it back to 16:9.
If I go direct DV into VS9 it records to aspect ratio correctly.
But, since I don't plan to edit much it's faster to DV into the recorder.
MD
The video must be true 16:9 to start with.
When I import a 16:9 aspect ratio from a sony recorder the import
module assigns it as 4:3. So does MF4 and Nero. Probably a bug in my sony dvd recorder (don't know). The Aspect Ratio is definitely 16:9 widescreen recorded on a Canon DV unit transferred via DV firewire into the Sony unit recording in -VR mode.
If played back on a dvd player, software or hardware the dvd plays the correct aspect ratio.
Using the importing feature of VS9 the video is assigned 4:3 Aspect Ratio.
To correct this I goto Share -> Create Video file -> Custom settings -> Options and set the Video & Audio Properties to match the source EXCEPT for the aspect ratio which I change to 16:9.
On the first tab of the custom settings I "Uncheck" "Perform non-square pixel rendering" and leave "Perform SmartRender" Checked "On".
After the file is rendered I import it etc or MF it for dvd.
The down side of this is I have to smart render the file but a 2.2 gig file to convert to 16:9 takes about 3 minutes.
It does put it back to 16:9.
If I go direct DV into VS9 it records to aspect ratio correctly.
But, since I don't plan to edit much it's faster to DV into the recorder.
MD