Hi, all:

Is it correct that I use the following to check whether the viewFrustum I
got right or not?

The front face of the viewFrustum (the volume enclosed by 8 frustumPoints)
is at the where the viewer is in terms of the x,y coordinates and the z
coordinate is where my front clip distance is.

The depth of the viewFrustum is the distance between my front clip distance
and back clip distance.

Thanks in advance for your help!

Lan Wu-Cavener
Dept. of Landscape Architecture

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