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david van brink // Sat 2009.04.18 17:04 // {after effects}

AE: Fake Spotlights

Here’s another variation on additive lighting tricks…

This one is a little experiment using After Effects’ spotlights on still images which have been rendered with similarly-located light sources.

Here’s one of the several still images.

And here’s a short movie showin a little more of the procedure, and some results.

oh, i dont know. what do you think?


david van brink // Wed 2009.04.1 07:21 // {after effects}

AE: Compositing Lights

Long, long ago I saw an article or talk by Paul Haeberli, of SGI. Oh, he covered many interesting and clever graphics tricks. One of them was the idea of “synthetic lighting”, or, “doing lighting in post”.

He has a page about it, here.

The idea is pretty simple. If you have images (or animations) of individual lights, you can add them together to get multiple lights. It appears to be a relatively common render feature these days, but I’d never played with it before. So here goes.

+


=

You can color and mask them, too, to get some pretty nifty effects, all from the same source images.

The pictures above, showing my infantile modeling skills, were done in Luxology modo, using full radiosity render. This can take a while! 10 minutes per low res frame, about.

The youtube video below shows some further examples of getting liveliness out of just a few frames, using this idea of additive post-process lighting.

oh, i dont know. what do you think?



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