Display Workbench Textures On Curve Objects #73246

New Issue

Thomas Pecht · 2020-01-19T21:03:44+01:00

Thomas Pecht commented

2020-01-19 21:03:44 +01:00

System Information
Operating system: Darwin-17.7.0-x86_64-i386-64bit 64 Bits
Graphics card: AMD Radeon HD - FirePro D500 OpenGL Engine ATI Technologies Inc. 4.1 ATI-1.68.24

Blender Version
Broken: version: 2.82 (sub 6), branch: master, commit date: 2020-01-18 18:58, hash: 3e11c4e63b
Same on Windows version with same hash as well as in older versions of the 2.8x series.

Worked: (optional)
Worked in 2.7x Blender viewport ('Texture' mode)

Short description of error
Textures don't display on curve extrusions in 'Solid' viewport shading mode even when UVs are assigned and 'Texture' is chosen as the object color. Instead, Curve extrusions simply stay gray.
These same textures show up fine on regular mesh objects in the same viewport. Also the curves display as intended in Material Preview and Rendered modes.

[Please fill out a short description of the error here]

Exact steps for others to reproduce the error
Ideally open attached blend file to see the issue right away.

Alternatively :

Create a curve object and give it depth and UVs and apply a material
Import a bitmap texture, attach to the curve's material and select it
Switch to Solid shading mode and activate Texture as object color
Compare look in Solid and Material Preview
Repeat the above steps for a mesh object with UVs

[Please describe the exact steps needed to reproduce the issue]
[Based on the default startup or an attached .blend file (as simple as possible)]

textures_on_curves.blend.zip

**System Information** Operating system: Darwin-17.7.0-x86_64-i386-64bit 64 Bits Graphics card: AMD Radeon HD - FirePro [D500](https://archive.blender.org/developer/D500) OpenGL Engine ATI Technologies Inc. 4.1 ATI-1.68.24 **Blender Version** Broken: version: 2.82 (sub 6), branch: master, commit date: 2020-01-18 18:58, hash: `3e11c4e63b` Same on Windows version with same hash as well as in older versions of the 2.8x series. Worked: (optional) Worked in 2.7x Blender viewport ('Texture' mode) **Short description of error** Textures don't display on curve extrusions in 'Solid' viewport shading mode even when UVs are assigned and 'Texture' is chosen as the object color. Instead, Curve extrusions simply stay gray. These same textures show up fine on regular mesh objects in the same viewport. Also the curves display as intended in Material Preview and Rendered modes. [Please fill out a short description of the error here] **Exact steps for others to reproduce the error** Ideally open attached blend file to see the issue right away. Alternatively : 1. Create a curve object and give it depth and UVs and apply a material 2. Import a bitmap texture, attach to the curve's material and select it 3. Switch to Solid shading mode and activate Texture as object color 4. Compare look in Solid and Material Preview 5. Repeat the above steps for a mesh object with UVs [Please describe the exact steps needed to reproduce the issue] [Based on the default startup or an attached .blend file (as simple as possible)] [textures_on_curves.blend.zip](https://archive.blender.org/developer/F8288341/textures_on_curves.blend.zip)

Thomas Pecht commented

2020-01-19 21:03:44 +01:00

Added subscriber: @top

Jeroen Bakker commented

2020-01-20 08:58:25 +01:00

Added subscriber: @Jeroen-Bakker

Jeroen Bakker self-assigned this 2020-01-20 08:58:25 +01:00

Jeroen Bakker commented

2020-01-20 08:58:25 +01:00

The workbench engine only support UV Maps and only displays the active UV Map. Curves don't have UV Maps so it isn't displayed. We could add support for this and isn't that much of work so will assign to me.

Thomas Pecht commented

2020-01-20 12:10:23 +01:00

Jeroen, that sounds great and yes it would be very much appreciated!

But just to clarify - if the curves don't have UV coordinates - why do they display fine in Material Preview (or export out of Blender as UV-mapped geometry)? At which point do the UV coordinates get added?

Jeroen, that sounds great and yes it would be very much appreciated! But just to clarify - if the curves don't have UV coordinates - why do they display fine in Material Preview (or export out of Blender as UV-mapped geometry)? At which point do the UV coordinates get added?

Jeroen Bakker commented

2020-01-27 14:45:33 +01:00

Workbench only supports UV Maps by design. EEVEE/Cycles have more mapping options (for example project world position as uv coordinate) and therefore can render it.

Jeroen Bakker changed title from ~~Textures don't display on curve extrusions in Solid+Textures viewport shading mode~~ to Display Workbench Textures On Curve Objects

2020-02-03 09:29:12 +01:00

Jeroen Bakker commented

2020-02-03 09:29:12 +01:00

Changed status from 'Needs Triage' to: 'Confirmed'

Thomas Pecht commented

2020-06-13 08:53:17 +02:00

Any chance we could see this feature being (re-)added in 2.90? It would be really helpful for curve modelling in order to get better viewport performance with texture preview (by making it possible to perform these tasks in workbench and not eevee).

Right now if you do anything with textured curve profiles, you have to run in material preview mode to have an idea about what's going on.

Any chance we could see this feature being (re-)added in 2.90? It would be really helpful for curve modelling in order to get better viewport performance with texture preview (by making it possible to perform these tasks in workbench and not eevee). Right now if you do anything with textured curve profiles, you have to run in material preview mode to have an idea about what's going on.

Jeroen Bakker removed their assignment 2020-11-13 08:37:02 +01:00

Philipp Oeser removed the

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Display Workbench Textures On Curve Objects #73246