Vertex Normal

[vusta]

Hi,

I've created a simple mcg to display Vertex Normals. Very simple. However, when I compare the results with an Edit Normals modifier, they're not the same. Seems like the mcg compound VerticesAndNormalsToMatrices has some sort of offset in the Z axis.

Attached are results comparisons. The thin lines are what I expect, correctly displayed by the Edit Normals modifier but the arrows from my mcg which get the matrices from

the VerticesAndNormalsToMatrices compound...is 'off' by a bit...WHY ?

here's my mcg, very simple...am I doing something wrong here ?

also attached is my mcg.

[vusta]

I fixed it my self...the VerticesAndNormalsToMatrices compound should use RotationBetweenUnitVectors COMPOUND rather than the RotationBetweenVectors OPERATOR

[vusta]

there's the dreaded -Z normal bug with this....ie..at the bottom of the box...any vert normal pointing straight down (all -Z) will not show up.

here's my workaround, for a pure -Z vector, it nudges it slightly in XY plane.

And please thank Swordslayer for many of his compounds.

[vusta]

here's a better solution without any 'nudging'

[galagast]

Hi, I'm just browsing/studying the image graphs you posted and havent opened the actual files yet..

I just noticed this:

Although, I suppose that was just a typo for the group box name since you probably have the graph working as you need it 🙂

[vusta]

the op is correct, the comment is wrong...there is another post that I mentioned this 'incorrect' comment (as supplied by AD) but I can't seem to find it...will post when I find it 🙂

ahh here it is..but it's on FB so you might have to join the group to read:

https://www.facebook.com/groups/1611269852441897/search/?query=-z%20normal