Blender 2.8 Beta: Freestyle Lineset drawing order breaks when using textures #62196

New Issue

Ilari Männistö · 2019-03-05T01:13:44+01:00

Ilari Männistö commented

2019-03-05 01:13:44 +01:00

System Information
Operating system: Win10 Home
Graphics card: Nvidia GTX 1080

Blender Version
Broken:
Date: 2019-02-10 23:55
Hash: 69b2f52681
Branch: blender2.7

Short description of error
Using textures to only one linestyle makes it always show on the bottom, no matter what the order for drawing linesets is. Tested with 2 linestyles and sets. I don't know how more linesets or styles will affect this bug.

Exact steps for others to reproduce the error

If I create two linesets in Freestyle and switch their order in the Lineset layers menu, I can choose in which order the linesets are drawn (topmost is drawn last). I think this is how it's supposed to work.

this is the setup. "Lineset 2" is drawn first, and then "Lineset" on top of it. So it looks like this:

And I can change the order and it looks like this (red is drawn on top):

But if I then go to line style options on either one of the line sets and set it to "use nodes" in the texture tab, then the system breaks. Now I cannot switch the line set order by switching what the topmost lineset is. The one with the texture is always shown on bottom.

Here I've set the red lines (lineset 2) to have a texture. It's just black but as we can see, it's suddenly behind the green lines even though I didn't change the layer order.

And even if I change the layers to be the other way around, green is still on top. The system starts working again, if I use a texture on both of the linesets. Here I've created a texture to the green lines also (but I disconnected it and the default purple is shown).

If I now go and change the layer order, I can get the black lines to be drawn on top.

So there is a workaround, but this is still a bit of a nuisance.

Also (another bug): The freestyle lines probably have the wrong alpha blending mode (premultiplied vs straight) when using Eevee, since they leave a noticeable white rim on the borders of the lines. This is just a hunch though, and many people have probably already reported this. In Cycles it works.

(Edit: It also works in Workbench if you set up freestyle in Eevee and then change the render engine. I presume this is accidental but it would be nice to have freestyle in Workbench also)

**System Information** Operating system: Win10 Home Graphics card: Nvidia GTX 1080 **Blender Version** Broken: Date: 2019-02-10 23:55 Hash: 69b2f5268114 Branch: blender2.7 **Short description of error** Using textures to only one linestyle makes it always show on the bottom, no matter what the order for drawing linesets is. Tested with 2 linestyles and sets. I don't know how more linesets or styles will affect this bug. **Exact steps for others to reproduce the error** If I create two linesets in Freestyle and switch their order in the Lineset layers menu, I can choose in which order the linesets are drawn (topmost is drawn last). I think this is how it's supposed to work. ![image.png](https://archive.blender.org/developer/F6762570/image.png) this is the setup. "Lineset 2" is drawn first, and then "Lineset" on top of it. So it looks like this: ![image.png](https://archive.blender.org/developer/F6762574/image.png) And I can change the order and it looks like this (red is drawn on top): ![image.png](https://archive.blender.org/developer/F6762582/image.png) But if I then go to line style options on either one of the line sets and set it to "use nodes" in the texture tab, then the system breaks. Now I cannot switch the line set order by switching what the topmost lineset is. The one with the texture is always shown on bottom. Here I've set the red lines (lineset 2) to have a texture. It's just black but as we can see, it's suddenly behind the green lines even though I didn't change the layer order. ![image.png](https://archive.blender.org/developer/F6762589/image.png) And even if I change the layers to be the other way around, green is still on top. The system starts working again, if I use a texture on both of the linesets. Here I've created a texture to the green lines also (but I disconnected it and the default purple is shown). ![image.png](https://archive.blender.org/developer/F6762598/image.png) If I now go and change the layer order, I can get the black lines to be drawn on top. ![image.png](https://archive.blender.org/developer/F6762602/image.png) So there is a workaround, but this is still a bit of a nuisance. Also (another bug): The freestyle lines probably have the wrong alpha blending mode (premultiplied vs straight) when using Eevee, since they leave a noticeable white rim on the borders of the lines. This is just a hunch though, and many people have probably already reported this. In Cycles it works. (Edit: It also works in Workbench if you set up freestyle in Eevee and then change the render engine. I presume this is accidental but it would be nice to have freestyle in Workbench also)

Ilari Männistö commented

2019-03-05 01:13:44 +01:00

Added subscriber: @Lattapotta

Sebastian Parborg commented

2019-03-11 13:43:58 +01:00

Added subscriber: @ZedDB

Sebastian Parborg commented

2019-03-11 13:43:58 +01:00

Can you attach a sample .blend file?

ronan ducluzeau commented

2019-03-11 14:58:28 +01:00

Added subscriber: @zeauro

ronan ducluzeau commented

2019-03-11 14:58:29 +01:00

I confirm the issue on linux.
Freestyle_textured_linesets.blend

It also happens in 2.79b.

At introduction of textured linestyles, Freestyle was using Blender Internal UI.
Use of nodes was forced for use of Freestyle with Cycles, but many Freestyle users continued to use Blender Internal with Freestyle until 2.8.

Now, user is forced to use nodes to texture Freestyle Strokes.
The "Go to Linestyles Texture properties button" does not make sense anymore in 2.8.

The ordering of linesets is crucial. There is no access to them in compositor. In 2.8, there is no Freestyle pass as in 2.79b.

It looks like alpha is not correctly supported by Output node, too.

I confirm the issue on linux. [Freestyle_textured_linesets.blend](https://archive.blender.org/developer/F6801491/Freestyle_textured_linesets.blend) It also happens in 2.79b. At introduction of textured linestyles, Freestyle was using Blender Internal UI. Use of nodes was forced for use of Freestyle with Cycles, but many Freestyle users continued to use Blender Internal with Freestyle until 2.8. Now, user is forced to use nodes to texture Freestyle Strokes. The "Go to Linestyles Texture properties button" does not make sense anymore in 2.8. The ordering of linesets is crucial. There is no access to them in compositor. In 2.8, there is no Freestyle pass as in 2.79b. It looks like alpha is not correctly supported by Output node, too.

Tamito Kajiyama was assigned by Sebastian Parborg

2019-03-11 18:31:39 +01:00

Ilari Männistö commented

2019-03-11 23:12:10 +01:00

freestylebug.blend
Thanks to Ronan for a quick reply. Here's a 2.8 blend file for reference in case you need it. Switching which freestyle line set is topmost doesn't alter the drawing order.
(I've never uploaded a .blend file here before, hopefully I did it correctly.)

:)

[freestylebug.blend](https://archive.blender.org/developer/F6805271/freestylebug.blend) Thanks to Ronan for a quick reply. Here's a 2.8 blend file for reference in case you need it. Switching which freestyle line set is topmost doesn't alter the drawing order. (I've never uploaded a .blend file here before, hopefully I did it correctly.) :)

Tamito Kajiyama was unassigned by Dalai Felinto

2019-12-23 16:34:58 +01:00

Dalai Felinto commented

2019-12-23 16:34:58 +01:00

Added subscriber: @kjym3

Richard Antalik commented

2020-01-24 19:52:43 +01:00

Added subscriber: @iss

Richard Antalik commented

2020-01-24 19:52:43 +01:00

Changed status from 'Confirmed' to: 'Needs User Info'

Richard Antalik commented

2020-01-24 19:52:43 +01:00

I can not see any textures in files that were uploaded here, so I can't re-triage.

Can you please check if this is still an issue in latest build?
https://builder.blender.org/download/

I can not see any textures in files that were uploaded here, so I can't re-triage. Can you please check if this is still an issue in latest build? https://builder.blender.org/download/

Ilari Männistö commented

2020-01-27 02:47:46 +01:00

@iss
Hello and sorry for a late reply.

I'll reupload a new file with some texture on it - although it doesn't matter because whether the other lineset is purple/textureless or it has a texture, it will always be drawn below the other lineset.
lineset_drawing_order.blend
My newest Blender (daily build, Git-fc1f5bded46a) crashed once when I tried to recreate the bug, but I finally succesfully recreated the bug on it.

Just to reiterate: the bug is that you break the drawing order of the different freestyle linesets, if you give a lineset a texture. Then, the lineset menu doesn't care which lineset is above or below. It just draws the textured lineset below at all times. (I tested this with just 2 linesets). Normally, it seems, the lineset that is listed above gets drawn last (ergo, on top of the other lineset). See the difference in the pictures.

This is the lineset menu where you can list from top to bottom the drawing order of the linesets. (top draws last, except when a texture is used and the system breaks)

(edit: posted a wrong picture, so i replaced it)

@iss Hello and sorry for a late reply. I'll reupload a new file with some texture on it - although it doesn't matter because whether the other lineset is purple/textureless or it has a texture, it will always be drawn below the other lineset. [lineset_drawing_order.blend](https://archive.blender.org/developer/F8304040/lineset_drawing_order.blend) My newest Blender (daily build, Git-fc1f5bded46a) crashed once when I tried to recreate the bug, but I finally succesfully recreated the bug on it. Just to reiterate: the bug is that you break the drawing order of the different freestyle linesets, if you give a lineset a texture. Then, the lineset menu doesn't care which lineset is above or below. It just draws the textured lineset below at all times. (I tested this with just 2 linesets). Normally, it seems, the lineset that is listed above gets drawn last (ergo, on top of the other lineset). See the difference in the pictures. ![image.png](https://archive.blender.org/developer/F8304046/image.png) ![image.png](https://archive.blender.org/developer/F8304051/image.png) ![image.png](https://archive.blender.org/developer/F8304049/image.png) This is the lineset menu where you can list from top to bottom the drawing order of the linesets. (top draws last, except when a texture is used and the system breaks) (edit: posted a wrong picture, so i replaced it)

Richard Antalik commented

2020-01-27 11:58:23 +01:00

Changed status from 'Needs User Info' to: 'Confirmed'

Richard Antalik commented

2020-01-27 11:58:23 +01:00

Thanks for additional information.

I am still a bit confused about "except when a texture is used". I am not exatcly sure what you mean by that, but I am not very familiar with freestyle settings.

Thanks for additional information. I am still a bit confused about "except when a texture is used". I am not exatcly sure what you mean by that, but I am not very familiar with freestyle settings.

Ilari Männistö commented

2020-01-27 13:26:32 +01:00

It's this setting here:

You can create a texture that runs along each stroke. It can be a image texture like I've set here. It is going to replace the colored freestyle lines with stretched versions of the image. In my case, it looks like this:

The texture is pretty awful but I hope it explains what freestyle lines with textures are.

It's this setting here: ![image.png](https://archive.blender.org/developer/F8304869/image.png) You can create a texture that runs along each stroke. It can be a image texture like I've set here. It is going to replace the colored freestyle lines with stretched versions of the image. In my case, it looks like this: ![image.png](https://archive.blender.org/developer/F8304872/image.png) The texture is pretty awful but I hope it explains what freestyle lines with textures are.

Richard Antalik commented

2020-01-27 13:53:05 +01:00

Thanks for explanation.

I was asking about that texture usage, because in file you provided Lineset is always drawn on top regardless of order and no texture is used to draw line.

So I am not sure if using texture is cause of this bug.

Thanks for explanation. I was asking about that texture usage, because in file you provided `Lineset` is always drawn on top regardless of order and no texture is used to draw line. So I am not sure if using texture is cause of this bug.

Ilari Männistö commented

2020-01-27 14:09:34 +01:00

I think I already used the texture in that file but I'm not sure. If I did, sorry :( Then the lineset drawing order is already broken. It should be tested with a completely new file, maybe.

So first you'd toggle the Freestyle on (in the Render Settings)
Then you'd create 2 linesets. First one could be named "Red" for example, and set to "Visible" lines. Second lineset, "Green" could be set to "Hidden" like I've done, so the linesets draw different lines, but they can of course also both be drawing "Visible" lines. Then you'll only see the topmost color (Red) though, because Green gets drawn first and then Red over it.
Now rerender the image but switch the listing so that Green is above and Red is below. Green should appear on top in the render.
Now place a texture to either of the linesets and rerender. Its lines will appear below the other lineset lines.

But it's also possible that the textures are not the correct cause for the bug and I've been guessing wrong. I'm sorry I'm so poor at helping. Freestyle is not really a vital part of my daily work, so I don't think this bug needs a high priority, but I wanted to report it since I feel someone might stumble upon it.

I think I already used the texture in that file but I'm not sure. If I did, sorry :( Then the lineset drawing order is already broken. It should be tested with a completely new file, maybe. 1. So first you'd toggle the Freestyle on (in the Render Settings) 2. Then you'd create 2 linesets. First one could be named "Red" for example, and set to "Visible" lines. Second lineset, "Green" could be set to "Hidden" like I've done, so the linesets draw different lines, but they can of course also both be drawing "Visible" lines. Then you'll only see the topmost color (Red) though, because Green gets drawn first and then Red over it. 3. Now rerender the image but switch the listing so that Green is above and Red is below. Green should appear on top in the render. 4. Now place a texture to either of the linesets and rerender. Its lines will appear below the other lineset lines. But it's also possible that the textures are not the correct cause for the bug and I've been guessing wrong. I'm sorry I'm so poor at helping. Freestyle is not really a vital part of my daily work, so I don't think this bug needs a high priority, but I wanted to report it since I feel someone might stumble upon it.

Philipp Oeser added the

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Blender 2.8 Beta: Freestyle Lineset drawing order breaks when using textures #62196