Normals

[barbara]

Good afternoon,
If I calculate the normals for an entire point cloud, is it possible, after this process, to view the normal calculations for a specific area of the point cloud?
Thanks in advance

[daniel]

So by default you already have an int with the shading of the points (make sure that 'normals' is activated on the point cloud). If it's black then this means the normal point backwards.

But with version 2.13 and onward, you can show the normals as 'vectors' (activate the 'Draw' option of the 'Draw normals as line' section of the cloud properties, and then set the right length and color for the vectors). You can also enable the EDL shader as it generally helps visualizing things.

normals_as_vectors.jpg (233.72 KiB) Viewed 275 times

Last you can pick a specific point (SHIFT + left click on the point, or use the 'Point picking' tool) to read the normal coordinates.