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Can't texture paint an images sequence anymore
Closed, ResolvedPublicBUG

Description

Operating system: Ubuntu 19.10, Windows 10 (2.82)
Graphics card: GTX970

Broken: 2.83 alpha (and 2.82, didn't test before)
Worked: 2.74, 2.44
Working tutorials on previous versions (2.7x):
https://blenderartists.org/t/painting-image-sequences-rotoscoping-in-blender/394587/6
https://blenderartists.org/t/can-i-create-an-image-sequence-in-texture-paint-mode/616270

In texture paint, you can play an images sequence:
https://media.blenderartists.org/uploads/default/original/4X/8/1/6/816c88ad2bf5b49e196085885fbb3064a5bf3124.jpeg

but it can’t be modified, brush is simply not drawing any thing

Exact steps for others to reproduce the error

  • Download fresh Blender 2.83 alpha
  • Since we can't pack images sequence and if you don't have an image sequence at hand (got something in /tmp?), create a quick image sequence
  • Create another scene, or file
  • Import image as plane with an images sequence (N panel > Animate Image Sequences) or simply open images sequence
  • In texture paint workspace (texture paint mode), image sequence is visible, playable, but not paintable:
    • if you zoom (after paint tentative), image disappears
    • if you don't play with zoom, image is here, untouched by the brush

In 2.82, N panel > Image > under file path > message = Can't load image:
see https://blenderartists.org/t/how-to-paint-an-image-sequence-i-can-only-view-it/1210707

Additional notes:
Texture Paint > Image (menu) > "Save all images" is still present, was used for images sequence.
Also tried using Composite > Images sequence node > Viewer + Render result (render result is a single generated image, we should be able to paint on it before saving it) to Texture Paint, no luck.
Also tried adding it as a texture. No luck
Also tried using Data API, pack checkbox is gone.
Option > "Quick Edit" button is gone? It was pretty useful.
Import image as plane correctly sets the frames number in the material, but N panel of texture paint is 100, like when creating a texture.
Maybe not related, on linux, moving the brush center under the N panel freezes the mouse, you simply can't go under it.

Based on the default startup

Event Timeline

Philipp Oeser (lichtwerk) changed the task status from Needs Triage to Confirmed.Mar 4 2020, 12:45 PM
Philipp Oeser (lichtwerk) changed the subtype of this task from "Report" to "Bug".

There are multiple issues reported here.

To properly track issues we need them to be reported separately.
Will concentrate on this [which I can confirm]:

In texture paint workspace (texture paint mode), image sequence is visible, playable, but not paintable

For all the "Additional Notes":

  • Please submit a new report for every individual bug.
  • I will clean up the original report according to this
Philipp Oeser (lichtwerk) triaged this task as High priority.

Looks like rBc30d6571bb47: Add support for tiled images and the UDIM naming scheme is the culprit here (along with some other UDIM commits which somewhat made the problem worse), will check...