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Fix squared distance for CPU impl. (#83)

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Summary:
`PointLineDistanceForward()` should return squared distance. However, it seems that it returned non-squared distance when `v0` was near by `v1` in CPU implementation.
Pull Request resolved: https://github.com/facebookresearch/pytorch3d/pull/83

Reviewed By: bottler

Differential Revision: D20097181

Pulled By: nikhilaravi

fbshipit-source-id: 7ea851c0837ab89364e42d283c999df21ff5ff02
This commit is contained in:
takiyu
2020-02-25 13:55:50 -08:00
committed by Facebook Github Bot
parent a0f3dc2d63
commit f358b9b14d
2 changed files with 3 additions and 3 deletions
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pytorch3d/csrc/rasterize_meshes/geometry_utils.h
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@@ -271,7 +271,7 @@ T PointLineDistanceForward(
const vec2<T> v1v0 = v1 - v0;
const T l2 = dot(v1v0, v1v0);
if (l2 <= kEpsilon) {
return sqrt(dot(p - v1, p - v1));
return dot(p - v1, p - v1);
}
const T t = dot(v1v0, p - v0) / l2;