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screen space docstrings fix

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Summary: Fix some comments to match the recent change to transform_points_screen.

Reviewed By: patricklabatut

Differential Revision: D33243697

fbshipit-source-id: dc8d182667a9413bca2c2e3657f97b2f7a47c795
This commit is contained in:
Jeremy Reizenstein
2021-12-21 04:30:29 -08:00
committed by Facebook GitHub Bot
parent 1152a93b72
commit eb2bbf8433
3 changed files with 3 additions and 3 deletions
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pytorch3d/renderer/cameras.py
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@@ -250,7 +250,7 @@ class CamerasBase(TensorProperties):
Returns the transform from camera projection space (screen or NDC) to NDC space.
For cameras that can be specified in screen space, this transform
allows points to be converted from screen to NDC space.
The default transform scales the points from [0, W-1]x[0, H-1]
The default transform scales the points from [0, W]x[0, H]
to [-1, 1]x[-u, u] or [-u, u]x[-1, 1] where u > 1 is the aspect ratio of the image.
This function should be modified per camera definitions if need be,
e.g. for Perspective/Orthographic cameras we provide a custom implementation.