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by Julian
Mon Jan 19, 2015 10:13 am
Forum: General Development
Topic: Pbrt 2: How does LookAt work?
Replies: 1
Views: 3457

Pbrt 2: How does LookAt work?

Currently I am reading the PBRT 2 book. Now I am a bit confused about the LookAt function. I placed a sphere at (0, 0, 0) – since I want to look at this sphere I want to place the eye point at (0, 0, -5) and want to look at (0, 0, 0). The up-vector should be (0,1,0) I tried this: BoxFilter b(1,1); f...