UDIM: painting on anything but the first tile is not updating in solid viewport shading #72514

New Issue

Philipp Oeser · 2019-12-17T14:58:02+01:00

Philipp Oeser commented

2019-12-17 14:58:02 +01:00

System Information
Operating system: Linux-5.3.12-200.fc30.x86_64-x86_64-with-fedora-30-Thirty 64 Bits
Graphics card: GeForce GTX 970M/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 440.31

Blender Version
Broken: version: 2.82 (sub 5), branch: master, commit date: 2019-12-17 10:39, hash: bda4a284d2
Worked: never

Short description of error
UDIM: painting on anything but the first tile is not updating in solid viewport shading

Exact steps for others to reproduce the error
UDIM_painting_solid_viewport_bug.zip

Open UDIM_painting_solid_viewport_bug.blend
you should be in Solid viewport shading (already set to Texture Color)
try painting on tile 1002 or 1003 in the Image Editor [the tile in the Image Editor will update, the 3DView will not update]
try painting on the left, right, bottom or back face of the cube [the tile in the Image Editor will update, the 3DView will not update]
switch to Material Preview viewport shading instead to see immediate updates in the 3DView...

This was already mentioned in #72487: UDIMs: Loss of texture information after saving., but reporting here separately as requested by @LukasStockner

Note this already had an answer there:

In #72487#830114, @LukasStockner wrote:
sounds like a bug, even though I remember this working from working on D6421, I'll need to have a look.

**System Information** Operating system: Linux-5.3.12-200.fc30.x86_64-x86_64-with-fedora-30-Thirty 64 Bits Graphics card: GeForce GTX 970M/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 440.31 **Blender Version** Broken: version: 2.82 (sub 5), branch: master, commit date: 2019-12-17 10:39, hash: `bda4a284d2` Worked: never **Short description of error** UDIM: painting on anything but the first tile is not updating in solid viewport shading **Exact steps for others to reproduce the error** [UDIM_painting_solid_viewport_bug.zip](https://archive.blender.org/developer/F8229085/UDIM_painting_solid_viewport_bug.zip) - Open `UDIM_painting_solid_viewport_bug.blend` - you should be in `Solid` viewport shading (already set to Texture Color) - try painting on tile `1002` or `1003` in the Image Editor [the tile in the Image Editor will update, the 3DView will not update] - try painting on the left, right, bottom or back face of the cube [the tile in the Image Editor will update, the 3DView will not update] - switch to `Material Preview` viewport shading instead to see immediate updates in the 3DView... This was already mentioned in #72487: UDIMs: Loss of texture information after saving., but reporting here separately as requested by @LukasStockner Note this already had an answer there: > In #72487#830114, @LukasStockner wrote: > sounds like a bug, even though I remember this working from working on [D6421](https://archive.blender.org/developer/D6421), I'll need to have a look.

Philipp Oeser commented

2019-12-17 14:58:02 +01:00

Added subscribers: @LukasStockner, @lichtwerk

Philipp Oeser commented

2019-12-17 14:58:40 +01:00

CC @LukasStockner

Lukas Stockner commented

2019-12-18 00:10:46 +01:00

Changed status from 'Open' to: 'Archived'

Lukas Stockner closed this issue

2019-12-18 00:10:46 +01:00

Lukas Stockner self-assigned this 2019-12-18 00:10:46 +01:00

Lukas Stockner commented

2019-12-18 00:10:46 +01:00

Well, this is embarrassing...
When reading the report for the first time, I completely forgot that the workbench engine does not support UDIMs at all yet, so all faces are drawn with the 1001 tile.
If you 2D paint onto the correct spots of the 1001 tile, the viewport updates all faces as expected.

I can also confirm that 2D painting onto the tiles with D6421 applied updates the viewport correctly :)

Well, this is embarrassing... When reading the report for the first time, I completely forgot that the workbench engine does not support UDIMs at all yet, so all faces are drawn with the 1001 tile. If you 2D paint onto the correct spots of the 1001 tile, the viewport updates all faces as expected. I can also confirm that 2D painting onto the tiles with [D6421](https://archive.blender.org/developer/D6421) applied updates the viewport correctly :)

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UDIM: painting on anything but the first tile is not updating in solid viewport shading #72514