All about geometry


Postby Guest » Sun Jul 19, 2020 11:05 pm

This particular resource about projection matrices( ... know-first) tells us:
that while projection, the points within the view frustum are mapped to the range [-1,1](later converted to [0,1]). But, also the z coordinates are mapped to [0,1], hence the view frustum is converted to a unit view volume.

But, when we project the z coordinates onto a plane at z' , shouldn't all the z coordinates be z', therefore resulting in a plane? What am I not understanding in this projection mechanism?

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