Z Buffer

Creator

Creator

Created

Created

2022 Oct 24 17:15

Editor

Editor

Edited

Edited

2022 Oct 28 17:40

Refs

Refs

같은 픽셀에서 여러 물체중 어떤걸 표출할지 정하기 위해

but not enough memory to store all object

ray tracing 에서는 그냥 제일 가까운 거 찾음

camera to origin $m_e$

N = \begin{pmatrix} u & v & w \end{pmatrix}

matrix composed with unit axis vector

\begin{pmatrix} p^1 \\ 1 \end{pmatrix} = \begin{pmatrix} N^T && -N^Te \\ 0 & 1 \end{pmatrix} \begin{pmatrix} p \\ 1 \end{pmatrix}

frustum to box $m_p$

m_p= \begin{pmatrix} 1 & 0 & 0 & 0 \\ 0 & 1 & 0 & 0 \\ 0 & 0 & (n+f)/n & -f \\ 0 & 0 & 1/n & 0 \\ \end{pmatrix} \begin{pmatrix} x \\ y \\ z \\ 1 \\ \end{pmatrix}

box to unit box $m_o$

https://www.cs.ucr.edu/~craigs/courses/2022-fall-cs-130/lectures/pipeline-transforms.pdf

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