Light Dimming VFX in "Sexy Back" at DVinfo.net

C.M. de la Vega · July 25th, 2007, 06:08 AM

I was wondering if anyone knows how to do mimic the light dimming effect in Timberlake’s Sexy Back (the close-up’s of him singing against the white background).

I’m trying to do something similar in post by adjusting the “Track fade to color” envelope. It works well BUT I see a lot of flickering, which I find strange because I’m working with png image sequences and video clips (2-3-3-2 pulldown) in progressive mode/23.976 fps. It looks fine on an interlaced TV but since this will be a web video, I’m a little concern the flickering will take away from the shot.

Anyone knows why this occurs or knows another way to achieve the effect?

Ian Stark · July 28th, 2007, 11:04 AM

Haven't seen the video but you can achieve some great lighting effects using the Bump Map fx plug in Vegas. Start with the Spotlight Up Flat preset then play around with positioning, intensity, focus, ambience etc. You might achieve what you're looking for by using one or more instances of Bump Map.

Check out this thread I started last year for some stills of Bump Map in use.

http://www.dvinfo.net/conf/showthread.php?t=79660

Ian . . .

C.M. de la Vega · August 1st, 2007, 06:47 AM

Ian, thanks for posting - I had previously tried the bump map fx but wasn't happy with the results. I rendered out the video and it looks fine on WMP or VLC.

On another note, you did a good job on your music video, illuminating in post with the bump map fx.

July 25th, 2007, 06:08 AM	#1
C.M. de la Vega New Boot Join Date: Jul 2007 Location: Miami, FL Posts: 17	Light Dimming VFX in "Sexy Back" I was wondering if anyone knows how to do mimic the light dimming effect in Timberlake’s Sexy Back (the close-up’s of him singing against the white background). I’m trying to do something similar in post by adjusting the “Track fade to color” envelope. It works well BUT I see a lot of flickering, which I find strange because I’m working with png image sequences and video clips (2-3-3-2 pulldown) in progressive mode/23.976 fps. It looks fine on an interlaced TV but since this will be a web video, I’m a little concern the flickering will take away from the shot. Anyone knows why this occurs or knows another way to achieve the effect?

July 28th, 2007, 11:04 AM	#2
Ian Stark Inner Circle Join Date: Dec 2003 Location: Hampshire, UK Posts: 2,237	Haven't seen the video but you can achieve some great lighting effects using the Bump Map fx plug in Vegas. Start with the Spotlight Up Flat preset then play around with positioning, intensity, focus, ambience etc. You might achieve what you're looking for by using one or more instances of Bump Map. Check out this thread I started last year for some stills of Bump Map in use. http://www.dvinfo.net/conf/showthread.php?t=79660 Ian . . . __________________ www.vit-media.com www.classicmachinefilms.co.uk

August 1st, 2007, 06:47 AM	#3
C.M. de la Vega New Boot Join Date: Jul 2007 Location: Miami, FL Posts: 17	Ian, thanks for posting - I had previously tried the bump map fx but wasn't happy with the results. I rendered out the video and it looks fine on WMP or VLC. On another note, you did a good job on your music video, illuminating in post with the bump map fx.