I am confused about this transformation. Why are camera coordinates described qualitatively and what do the normalized device coordinate numbers mean?
Sicheng-Pan
From my understanding, the view volume represents the partition of the real world that is captured by the camera, and the coordinates specify the physical dimensions of such space. The normalized device coordinates may provide an easier way to describe and inspect the elements in the view volume, for example we may eliminate the z-axis and project everything to the xy plane to get an realistic view from the camera.
Stents-
Do we still render objects outside the NDC? I know that we use the NDC because we have limited FP precision, but we can still represent numbers > 1 in FP, just with less precision. Obviously there’s no point in rendering objects outside the parallelepiped, but objects inform of the near or past the far could potentially still be seen by the camera.
I am confused about this transformation. Why are camera coordinates described qualitatively and what do the normalized device coordinate numbers mean?
From my understanding, the view volume represents the partition of the real world that is captured by the camera, and the coordinates specify the physical dimensions of such space. The normalized device coordinates may provide an easier way to describe and inspect the elements in the view volume, for example we may eliminate the z-axis and project everything to the xy plane to get an realistic view from the camera.
Do we still render objects outside the NDC? I know that we use the NDC because we have limited FP precision, but we can still represent numbers > 1 in FP, just with less precision. Obviously there’s no point in rendering objects outside the parallelepiped, but objects inform of the near or past the far could potentially still be seen by the camera.