teaching machines

Computer Graphics Proofs

Inverse of rotation/translation matrix

Occasionally I need to be back out of eye space and get back to object space, so I need the inverse of my modelview matrix. Finding an arbitrary inverse is non-trivial, but finding the inverse of a matrix that simply rotates and translates is simpler.

  1. Inverting a matrix product
  2. Inverting a translation
  3. Inverting a rotation
  4. Inverting a rotation + translation

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