Go Back   MacRumors Forums > Special Interests > Visual Media > Digital Video

Thread Tools Search this Thread Display Modes
Old Jan 7, 2013, 11:39 AM   #1
macrumors 6502a
Join Date: Nov 2004
AE Expression to tie image brightness to 3d light intensity value

I'm compositing some stuff in After Effects and I want to light up some fog (generated in Particular) with a 3d light that flickers at the same rate as a practical in the scene. The practical flickers from very dim to very bright and is static in terms of position in a static frame... is there a way to tie the brightness of a sampled pixel value to values for opacity, light intensity, etc.? Some expression?

Any good After Effects training online, btw? Beyond the free stuff like video copilot. My game has stagnated and I either have to learn it a lot better or move up to Nuke (unlikely).
Policar is offline   0 Reply With Quote

MacRumors Forums > Special Interests > Visual Media > Digital Video

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Similar Threads
thread Thread Starter Forum Replies Last Post
How to set automatic keyboard brightness in low light slo-climber MacBook Pro 2 May 2, 2014 04:21 PM
Looking for a light & fast image browser Regal Mac Basics and Help 5 Mar 18, 2013 08:48 PM
MacBook Pro no image to screen or external display, no light to Apple on lid Skirimsl MacBook Pro 28 Feb 10, 2013 04:44 AM
Intensity Extreme and Thunderbolt SPUY767 Digital Video 2 Feb 1, 2013 09:20 AM

Forum Jump

All times are GMT -5. The time now is 11:17 AM.

Mac Rumors | Mac | iPhone | iPhone Game Reviews | iPhone Apps

Mobile Version | Fixed | Fluid | Fluid HD
Copyright 2002-2015, MacRumors.com, LLC