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dan's "Layer Invisible When Facing Away" expression quick question


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dan's "Layer Invisible When Facing Away" expression quick question
by al brown on Dec 3, 2008 at 9:13:35 am

if (toCompVec([0, 0, 4335])[2] > 0 ) value else 0

if (toCompVec([0, 0, 4335])[2] > 0 ) value else 0

i'm following Dan's "Layer Invisible When Facing Away" expression, incredibly useful that it is!! Just have a quick question. Here's the expression i'm referring to:

if (toCompVec([0, 0, 4335])[2] > 0 ) value else 0

i can understand each aspect of the expression, except for

[2] > 0

What is the 2 for? And what is the (presumably) Less Than Zero for?

Would really appreciate thoughts (especially ones for non-expression peoples like myself!)

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Current Message Thread:

dan's "Layer Invisible When Facing Away" expression quick question by al brown on Dec 3, 2008 at 9:13:35 am
- Re: dan's "Layer Invisible When Facing Away" expression quick question by Dan Ebberts on Dec 3, 2008 at 2:16:14 pm

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