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Fix T92345: Crash with only pointcloud in attribute transfer node 

The distances array is only allocated if there are mesh distances to
compare to, so it is empty when there is only a point cloud.
This commit is contained in:
Hans Goudey 2021-10-19 10:42:14 -05:00
parent a7ade57e11
commit 7a61916717
Notes: blender-bot 2023-02-14 02:30:10 +01:00 
Referenced by issue #92345, Geometry Nodes: Attribute transfer using "Nearest" mapping causes crash when target geometry consists only of points
1 changed files with 3 additions and 1 deletions
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4
source/blender/nodes/geometry/nodes/node_geo_transfer_attribute.cc
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@ -170,7 +170,9 @@ static void get_closest_pointcloud_points(const PointCloud &pointcloud,
BLI_bvhtree_find_nearest(
tree_data.tree, position, &nearest, tree_data.nearest_callback, &tree_data);
r_indices[i] = nearest.index;
r_distances_sq[i] = nearest.dist_sq;
if (!r_distances_sq.is_empty()) {
r_distances_sq[i] = nearest.dist_sq;
}
}
free_bvhtree_from_pointcloud(&tree_data);