Today I noticed a peculiarity in Dark theme, with Y axis color set to Red (255,0,0).
The positive Y axis is now Red, but It seems to be about 2 times extra wide, with a "white" border.
This does not happen with a test Red X axis. (The X axis is set to Blue, normally).

If the Y axis color is set to darker Red (170, 0, 0), the positive Y axis has regular thickness.

Do not know if it has something to do with my display, or ?

- Brian

Hi Brian, I think that's just how things look when a polygon being drawn on screen is not quite exactly aligned with screen pixels. I may be able to tune it slightly, I'll try.

- Michael

Thanks for having a look, Michael.

For now, I'll use the dark red instead.

- Brian

Hi Brian, I think the white border you're seeing is a type of optical effect known as "Mach banding":
https://en.wikipedia.org/wiki/Mach_bands

Probably the best adjustment to reduce it is using a darker red color like you've already done.

I've experimented with a few other ideas but have not really come up with anything better than that.

You can set that color to come from the current theme so it can be set differently for a dark background theme versus a light background theme.

- Michael

Thank you Michael.

So I did some experiments.
When I take off my glasses, the effect goes away.
When I look through the reader portion of the glasses, the effect tends to go away.
And maybe there is some of that mach banding going on, for that white effect.
So I'll blame most of the effect on the age of this user :-)
And I'll keep using the dark red for y-axis, rather than red.

- Brian

Hi Michael,

Looking forward to trying this new beta release!

Update mesh export vertex normal combining. Change vertex normal combining to use tolerance of 0.5 degrees instead of 3.0 degrees. It can also be changed now in moi.ini .
[Mesh Export]
UnifyVertexNormalsAngleToleranceDegrees=0.5


Hello. I have been using Moi3D to convert SolidWorks>STEP>Moi export OBJ and when you get into Blender you have to use the merge command to merge vertices which are never combined. Does this remove the need to do this? In Blender merge is done by distance, so I am not sure if angle changing will fix it.

Hi Pj,

re:
> Hello. I have been using Moi3D to convert SolidWorks>STEP>Moi export OBJ and
> when you get into Blender you have to use the merge command to merge vertices
> which are never combined.

Are you using the setting "Weld vertices along edges" in the Meshing options dialog when you
do the export out from MoI?




> Does this remove the need to do this? In Blender merge is done by distance, so I am not
> sure if angle changing will fix it.

No, the vertex normal combining makes 2 normals that are very close to each other become
exactly equal. It doesn't have to do with merging vertices. The "Weld vertices along edges" shown
above is what enables merging vertices.

- Michael