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Pseudonym
Andrew Bromage
184 posts / 1 project

Research engineer, resident maths nerd (Erdős number 3).

#3148 Matte objects
3 years, 5 months ago

Since matte objects came up in the stream, I thought a quick explanation may be in order.

A matte object is a special kind of object which occludes things behind it, but is also transparent. The purpose is to make a hole in the image.

The term "matte" comes from visual effects, such as blue/green screening, to knock out areas from a scene to aid in compositing. In a moving image, this is known as a "travelling matte".

Matte objects have no colour, only alpha. This is a good reference on the m...ehind working with matte objects.

sub f{($f)[email protected]_;print"$f(q{$f});";}f(q{sub f{($f)[email protected]_;print"$f(q{$f});";}f});