# (V6) Antialiasing change?

**URL:** <https://discourse.mcneel.com/t/v6-antialiasing-change/67931>\
**Category:** Rhino for Windows\
**Created:** [July 31, 2018, 7:22am UTC](https://discourse.mcneel.com/t/v6-antialiasing-change/67931 "2018-07-31T07:22:43Z")\
**Posts on this page:** 20\
**Page:** 1

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**Author:** ![Charles](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/charles/32/772919_2.png) [@Charles](https://discourse.mcneel.com/u/Charles)\
**Post date:** [July 31, 2018, 7:22am UTC](https://discourse.mcneel.com/t/v6-antialiasing-change/67931/1 "2018-07-31T07:22:43Z")

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Was there a change in Antialiasing in SR8 recently?

Because I see a quite ugly picture:  
 ![image](https://global.discourse-cdn.com/mcneel/original/3X/4/3/439d9d6613f7978921105287f4c2ba5d7975db4e.png)

(Open the image to see original size or browser at 100%)  
[Alphabet.3dm](https://global.discourse-cdn.com/mcneel/uploads/default/original/3X/7/3/73ef037dfcb0c38f201ba6adf1b5519942f65ec8.3dm) (387.2 KB)

And yes, graphics driver is most recent.  
AA in Rhino is set to 8x.  
I did not change anything that I’m aware of.

What can it be, and how to get the good display quality back?

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**Author:** ![pascal](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/pascal/32/479395_2.png) [@pascal](https://discourse.mcneel.com/u/pascal)\
**Post date:** [July 31, 2018, 3:42pm UTC](https://discourse.mcneel.com/t/v6-antialiasing-change/67931/2 "2018-07-31T15:42:27Z")

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Hi Charles - @stevebaer will know better but it looks a little like, maybe, some iteration of `TestLineSmoothing` might be at work here - does anything change of you toggle that command?

-Pascal

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**Author:** ![stevebaer](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/stevebaer/32/473567_2.png) [@stevebaer](https://discourse.mcneel.com/u/stevebaer)\
**Post date:** [July 31, 2018, 4:37pm UTC](https://discourse.mcneel.com/t/v6-antialiasing-change/67931/4 "2018-07-31T16:37:14Z")

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I see what is happening. This is a result of a fix to improve the quality of vertical and horizontal lines. I’ll see what we can do to make this look better. You can also try the “TestLineSmoothing” command that Pascal suggested.

> [@Graphic bugs in rhino 6](https://discourse.mcneel.com/t/graphic-bugs-in-rhino-6/60214):
>
> Hi all. I have some graphic bug in rhino 6, in last service release as same as in last service release candidate. Lines, like grid, curves or edges are everywhere “1.1x wider than normal”, so they not appear correctly thin as they should. The normal wireframe rendering i’m used to is that every cuve is just 1 pixel wide (with AA off), here in RH6 i have almost every curve displayed somehow “dirty”. Also i’ve found the “Focal blur” menu is blurred! … how ironic XD See attached .gif to unders…

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<div class="post-metadata">

**Author:** ![Charles](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/charles/32/772919_2.png) [@Charles](https://discourse.mcneel.com/u/Charles)\
**Post date:** [July 31, 2018, 5:51pm UTC](https://discourse.mcneel.com/t/v6-antialiasing-change/67931/5 "2018-07-31T17:51:17Z")

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> [@stevebaer](#):
>
> I see what is happening. This is a result of a fix to improve the quality of vertical and horizontal lines. I’ll see what we can do to make this look better. You can also try the “TestLineSmoothing” command that Pascal suggested

Steve, Pascal  
I tried the command now.  
LineSmoothing shows a different picture, but far from good.  
V/H lines are still quite different from the other curves:

 ![image](https://global.discourse-cdn.com/mcneel/original/3X/8/e/8e05ebf411d9fe9b3a3d5fb2bd2c56b8c2c0b036.png)  
 ![image](https://global.discourse-cdn.com/mcneel/original/3X/c/4/c4b4b268816123c6a770c0fd57d99fe3ae0caa44.png)  
Disabled looks better to me, except the V/H lines.  
Windows is at 100% DPI scaling.

Isn’t it possible to go back to the former state, and switch to the experimental methods optional only?

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**Author:** ![Charles](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/charles/32/772919_2.png) [@Charles](https://discourse.mcneel.com/u/Charles)\
**Post date:** [July 31, 2018, 5:55pm UTC](https://discourse.mcneel.com/t/v6-antialiasing-change/67931/6 "2018-07-31T17:55:36Z")

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![image](https://global.discourse-cdn.com/mcneel/uploads/default/original/3X/2/a/2ad9c3086b51d46b07317b66a37d6d97b89d71dc.png)

At a small zoom, the current view is - horrible.

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**Author:** ![stevebaer](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/stevebaer/32/473567_2.png) [@stevebaer](https://discourse.mcneel.com/u/stevebaer)\
**Post date:** [July 31, 2018, 6:00pm UTC](https://discourse.mcneel.com/t/v6-antialiasing-change/67931/7 "2018-07-31T18:00:59Z")

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What computer/monitor combination are you using? I really need to find a system that produces that results that you are seeing.

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<div class="post-metadata">

**Author:** ![Charles](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/charles/32/772919_2.png) [@Charles](https://discourse.mcneel.com/u/Charles)\
**Post date:** [July 31, 2018, 6:09pm UTC](https://discourse.mcneel.com/t/v6-antialiasing-change/67931/8 "2018-07-31T18:09:22Z")

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> [@stevebaer](#):
>
> What computer/monitor combination are you using?

NVidia 1060  
Older i7 (4770?)  
LG 43UD79-B

![image](https://global.discourse-cdn.com/mcneel/original/3X/1/9/198c9fba5809693f1fd7ff6c447665bbe267e3cc.png)

![image](https://global.discourse-cdn.com/mcneel/original/3X/d/6/d6fcd26c765558a59c47c812b44c3af9e465c818.png)

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<div class="post-metadata">

**Author:** ![Charles](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/charles/32/772919_2.png) [@Charles](https://discourse.mcneel.com/u/Charles)\
**Post date:** [August 1, 2018, 5:22am UTC](https://discourse.mcneel.com/t/v6-antialiasing-change/67931/9 "2018-08-01T05:22:38Z")

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Which one is the best? (open at 100%)

 ![AA](https://global.discourse-cdn.com/mcneel/original/3X/9/2/929026b4ef077a29a7572e9a199ae58812f04a45.png)

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<div class="post-metadata">

**Author:** ![stevebaer](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/stevebaer/32/473567_2.png) [@stevebaer](https://discourse.mcneel.com/u/stevebaer)\
**Post date:** [August 1, 2018, 5:34am UTC](https://discourse.mcneel.com/t/v6-antialiasing-change/67931/10 "2018-08-01T05:34:09Z")

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I should have a new SR8 build available tomorrow that has some changes I made today to try and improve the display.

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<div class="post-metadata">

**Author:** ![Charles](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/charles/32/772919_2.png) [@Charles](https://discourse.mcneel.com/u/Charles)\
**Post date:** [August 1, 2018, 9:40am UTC](https://discourse.mcneel.com/t/v6-antialiasing-change/67931/11 "2018-08-01T09:40:04Z")

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> should have a new SR8 build available tomorrow

Do you mean this one?  
(6.8.18211.21311, 30.07.2018)

If so, it is a bit better, but still not ok.

In addition, there are artifacts from the grid now.  
Depends on the zoom, sometimes they are there and sometimes not.

 ![image](https://global.discourse-cdn.com/mcneel/original/3X/b/6/b636b8ecf476a7c20cbd1f4447b1c4573919e4f9.png)

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<div class="post-metadata">

**Author:** ![stevebaer](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/stevebaer/32/473567_2.png) [@stevebaer](https://discourse.mcneel.com/u/stevebaer)\
**Post date:** [August 1, 2018, 5:41pm UTC](https://discourse.mcneel.com/t/v6-antialiasing-change/67931/12 "2018-08-01T17:41:41Z")

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Do you have WireThicknessScale set to a value other than 1?

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<div class="post-metadata">

**Author:** ![stevebaer](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/stevebaer/32/473567_2.png) [@stevebaer](https://discourse.mcneel.com/u/stevebaer)\
**Post date:** [August 1, 2018, 6:45pm UTC](https://discourse.mcneel.com/t/v6-antialiasing-change/67931/13 "2018-08-01T18:45:14Z")

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> [@Charles](#):
>
> Do you mean this one?  
> (6.8.18211.21311, 30.07.2018)

I don’t think that one had my changes in it, but it’s also pretty hard to tell. Here is one that looks like it has my changes  
[http://files.mcneel.com/dujour/exe/20180801/rhino\_en-us\_6.8.18213.03201.exe](http://files.mcneel.com/dujour/exe/20180801/rhino_en-us_6.8.18213.03201.exe)

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<div class="post-metadata">

**Author:** ![Charles](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/charles/32/772919_2.png) [@Charles](https://discourse.mcneel.com/u/Charles)\
**Post date:** [August 1, 2018, 8:14pm UTC](https://discourse.mcneel.com/t/v6-antialiasing-change/67931/14 "2018-08-01T20:14:45Z")

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> [@stevebaer](#):
>
> Do you have WireThicknessScale set to a value other than 1?

Steve, no.

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<div class="post-metadata">

**Author:** ![Charles](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/charles/32/772919_2.png) [@Charles](https://discourse.mcneel.com/u/Charles)\
**Post date:** [August 2, 2018, 5:19am UTC](https://discourse.mcneel.com/t/v6-antialiasing-change/67931/15 "2018-08-02T05:19:15Z")

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> [@stevebaer](#):
>
> ([http://files.mcneel.com/dujour/exe/20180801/rhino\_en-us\_6.8.18213.03201.exe](http://files.mcneel.com/dujour/exe/20180801/rhino_en-us_6.8.18213.03201.exe))

Installed the above (6.8.18213.3201, 01.08.2018), and the view is - hmm.  
V6:  
 ![image](https://global.discourse-cdn.com/mcneel/original/3X/0/3/034bc67b4e6da51e8ea18c795f7494ab05e4bfc3.png)  
V5 (exactly same conditions):  
 ![image](https://global.discourse-cdn.com/mcneel/original/3X/1/c/1c8bc9e6180970322ec85ddf70dca417f9ba0db8.png)

* * *

Then I played with the WireScale you mentioned.  
0.5 to 0.7 seem to be a bit better, or 1.4.  
But the same quality as in V5 can’t be reached.  
I switched it back to 1.

* * *

In other models than the abc it looks like AA is not doing anything:  
 ![image](https://global.discourse-cdn.com/mcneel/original/3X/0/e/0e928ea3a3fe6894e08fccb1c4c406bcabb66f37.png)

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<div class="post-metadata">

**Author:** ![stevebaer](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/stevebaer/32/473567_2.png) [@stevebaer](https://discourse.mcneel.com/u/stevebaer)\
**Post date:** [August 2, 2018, 5:33am UTC](https://discourse.mcneel.com/t/v6-antialiasing-change/67931/16 "2018-08-02T05:33:01Z")

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Those images must be getting scaled because the V6 image looks much better than the V5 one that you posted. Does TestLineSmoothing make any difference in 6.8 for you?

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<div class="post-metadata">

**Author:** ![Charles](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/charles/32/772919_2.png) [@Charles](https://discourse.mcneel.com/u/Charles)\
**Post date:** [August 2, 2018, 5:41am UTC](https://discourse.mcneel.com/t/v6-antialiasing-change/67931/17 "2018-08-02T05:41:16Z")

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> [@stevebaer](#):
>
> Those images must be getting scaled because the V6 image looks much better than the V5 one that you posted.

The images I sent are not scaled by me.  
Set the browser to 100% or download the images and view them in Photoshop at 100%.

> [@stevebaer](#):
>
> Does TestLineSmoothing make any difference in 6.8 for you?

No, no visible difference for me.

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<div class="post-metadata">

**Author:** ![stevebaer](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/stevebaer/32/473567_2.png) [@stevebaer](https://discourse.mcneel.com/u/stevebaer)\
**Post date:** [August 2, 2018, 5:44am UTC](https://discourse.mcneel.com/t/v6-antialiasing-change/67931/18 "2018-08-02T05:44:06Z")

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I downloaded and looked at them at 100%. The first image which is labeled V6 looks great.

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<div class="post-metadata">

**Author:** ![Charles](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/charles/32/772919_2.png) [@Charles](https://discourse.mcneel.com/u/Charles)\
**Post date:** [August 2, 2018, 5:45am UTC](https://discourse.mcneel.com/t/v6-antialiasing-change/67931/19 "2018-08-02T05:45:41Z")

</div>

> [@stevebaer](#):
>
> The first image which is labeled V6 looks great.

If you think so, I don’t know what to tell further.

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<div class="post-metadata">

**Author:** ![stevebaer](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/stevebaer/32/473567_2.png) [@stevebaer](https://discourse.mcneel.com/u/stevebaer)\
**Post date:** [August 2, 2018, 5:47am UTC](https://discourse.mcneel.com/t/v6-antialiasing-change/67931/20 "2018-08-02T05:47:08Z")

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I believe you that what you are seeing doesn’t look as good to you in V6 as in V5. The screenshots posted in discourse probably don’t tell the true story.

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<div class="post-metadata">

**Author:** ![Charles](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/charles/32/772919_2.png) [@Charles](https://discourse.mcneel.com/u/Charles)\
**Post date:** [August 2, 2018, 5:54am UTC](https://discourse.mcneel.com/t/v6-antialiasing-change/67931/21 "2018-08-02T05:54:09Z")

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I think I know what’s going on:  
 ![image](https://global.discourse-cdn.com/mcneel/uploads/default/original/3X/6/7/671ba1920efc88a4897fb57d1239f91a6d3b520d.png)

This is zoomed into the V6 screenshot.  
The lines are very good - far better than in V5.  
In the curved parts you can see yourself, 1 pixel overshot.

That does not happen in V5:  
 ![image](https://global.discourse-cdn.com/mcneel/uploads/default/original/3X/0/0/0063061b689c8d0aa5d9119a86e4ca97381ad54f.png)

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