Resolume Forum

Hey Guys,

I have a gig where i need out output 16:9.

When i set up a new composition and set this to PAL and have all of my clips 16:9 PAL this will allow me to output at that resolution would i be correct in thinking that?

I would i need to change the composition size to something different?

Thanks
Basic

16x9 is a whole bees nest of issues.

If your projector is capable of native 16x9 resolutions, just make your content and composition in that resolution. Most standard definition beamers however will stretch a 4x3 signal to look like 16x9, so you'd need to make all your content anamorphically squeezed. Another safe and easier bet would be to make your content 16x9, but your comp 4x3, so everything becomes letterboxed.

I hope that's a bit clear.

Joris

Yeah i know thats why im a little confused.

I was going to project PAL 4:3 but the client advised that the projector was only 16:9.

so all of my clips are 720x576 4:3 so i then took them into AE and batch converted each composition to PAL widescreen.

So would i be correct in thinking that a PAL widescreen comp at 720x576 is 16:9? (this confuses me somewhat )

So create a comp which is PAL 720x576 and have my clips at PAL widescreen 720x576 and that should be ok?

Sorry if im sounding a little stupid ive only ever worked in PAL 4:3 or 1920x1080... its mad!

Thanks again Joris

Yeah. Hmmm. Well. I was afraid you were going to ask that .

16x9 vs 4x3 Pal was that bees nest I was talking about. For some dark and mysterious reason, a long time ago the masters of DV land decided that for digital video, 4x3 Pal would have a resolution of 720x576 with a 1.07 pixel aspect ratio. This means it's slightly stretching the pixels on a tv monitor to the equivalent of 768x576. (math nerd spoiler warning: if you do the math, 720x576 actually amounts to 5x4).

For 16x9 Pal, the resolution would also be 720x576 (!), this time with a 1.33 pixel aspect ratio (also referred to as anamorphic), stretching the pixels out to the equivalent of 1024x576 on a tv monitor set to widescreen. Confused? You should be.

So if your projector is doing Pal 16x9, most likely it will take a 720x576 signal, and stretch this to get the widescreen look. So your previously 4x3 Pal material that you batch converted should now look squeezed, but still is 720x576. So you should indeed set your Resolume comp to 720x576, and play your suqeezed footage. The projector will then stretch it back to a normal looking image.

For more info, give this page a check, but be sure to stop reading when your head starts to spin.

One day I will build a robot and send it back in time to kill the person responsible for this whole confusing aspect ratio mess.

Now i understand it! thanks for this help! Its what i had been trying to get my head around. I had seen this resolution and i think this is what threw me originally 1024x576.

thanks for the tip about res comp setting and luckily a lot of my footage is now 16:9. Its mainly abstract stuff so i should (fingers crossed) be ok when mixing.

Thanks again for the detailed explanation!

Basic

For anyone interested. I converted all of my clips from 4:3 to 16:9, so Pal Dv to Pal Widescreen, I then created a PAL comp in Avenue and resized my clips so they fit the 768x576 comp (Clips I had created were 720x576 widescreen non-square pixel).

I outputted to the screen and it was perfect fit no distortion and a nice set also! I will post some pics of the screen i was projecting onto.

Also a little additional info was... i was running at PAL off the internal disk 7200rpm on a mbp i7 with 4gb ram and was getting frame rates between 30-60.

This was the only source and it worked very well with no hiccups!

Boohyakasha RESOLUME!!!