Register FAQ / Rules Forum Spy Search Today's Posts Mark Forums Read
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

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

All times are GMT -5. The time now is 08:58 PM.

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

Mobile Version | Fixed | Fluid | Fluid HD
Copyright 2002-2013,, LLC