CURA-12544 saving and loading painted files in cura

[Erwan MATHIEU (wawanbreton)]

Save and load painted models textures in 3MF files

⚠️ Based on CURA-12543, do not merge before other one is merged

Requires Ultimaker/Uranium#1000, Ultimaker/libSavitar#57, Ultimaker/pySavitar#7

CURA-12544

[github-actions]

Test Results

23 881 tests  ±0   23 878 ✅  - 1   49s ⏱️ +2s
     1 suites ±0        2 💤 ±0 
     1 files   ±0        1 ❌ +1 

For more details on these failures, see this check.

Results for commit 851d472. ± Comparison against base commit a789a5b.

♻️ This comment has been updated with latest results.

[Casper Lamboo (casperlamboo)]

⚠️ Based on CURA-12543, do not merge before other one is merged

Why don't you chagne the base of this branch to CURA-12543?

[Erwan MATHIEU (wawanbreton)]

Why don't you chagne the base of this branch to CURA-12543?

Because it is supposed to be merged soon, so shouldn't exist anymore

[Copilot]

Pull Request Overview

This PR adds full support for painting textures on models and persisting them in 3MF archives, and it extends handling of travel move types in the simulation view and G-code parser.

• Introduces four new travel move types (unretracted, retracted, while retracting, while unretracting) across shaders, Python logic, protos, and LayerPolygon.
• Implements the Paint Tool UI, view, and shader, and integrates texture embedding/extraction in the 3MF writer/reader.
• Updates Simulation View menu to show travel sub-types in a tooltip and extends color scheme limits.

Reviewed Changes

Copilot reviewed 27 out of 27 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
plugins/SimulationView/layers_shadow.shader	Extend travel‐move filter to new types, fix brace
plugins/SimulationView/layers3d_shadow.shader	Handle new travel move types in 3D shadow pass
plugins/SimulationView/layers3d.shader	Handle new travel move types in 3D pass
plugins/SimulationView/layers.shader	Handle new travel move types in 2D pass
plugins/SimulationView/SimulationViewMenuComponent.qml	Add travel sub-types model and tooltip UI
plugins/SimulationView/SimulationView.py	Include new travel types in color scheme limits
plugins/SimulationView/SimulationPass.py	Use new travel move types in previous-line array
plugins/PaintTool/plugin.json	Register Paint Tools plugin metadata
plugins/PaintTool/paint.shader	New vertex/fragment shaders for painting
plugins/PaintTool/init.py	Plugin module exports and metadata
plugins/PaintTool/PaintView.py	PaintView implementation with undo/redo stacks
plugins/PaintTool/PaintTool.qml	Paint Tool toolbar QML
plugins/PaintTool/PaintTool.py	PaintTool input handling and stroke logic
plugins/GCodeReader/FlavorParser.py	Map G-code combing/retraction to new types
plugins/CuraEngineBackend/Cura.proto	Rename Move types in 3MF proto
plugins/3MFWriter/ThreeMFWriter.py	Embed paint textures and relations in 3MF writer
plugins/3MFReader/ThreeMFReader.py	Extract paint textures from 3MF reader
cura/Scene/SliceableObjectDecorator.py	Add paint texture decorator and copying
cura/LayerPolygon.py	Define and map new travel move types
cura/LayerDataBuilder.py	Apply new travel move types to material colors

Comments suppressed due to low confidence (3)

plugins/SimulationView/SimulationView.py:611

• New travel move types are added here; consider adding or updating unit tests for calculateColorSchemeLimits to verify these types are included correctly.

visible_line_types.append(LayerPolygon.MoveUnretractedType)

plugins/SimulationView/layers_shadow.shader:54

• There is an extra opening brace immediately after the if block. Remove the second { so that the shader syntax is correct and compiles.

{

plugins/3MFWriter/ThreeMFWriter.py:168

• QBuffer is used here but not imported. Add from PyQt6.QtCore import QBuffer (or the appropriate module) at the top to avoid a NameError.

texture_buffer = QBuffer()

[Casper Lamboo (casperlamboo)]

Because it is supposed to be merged soon, so shouldn't exist anymore

Because the base automatically updates to main once the ticket is merged. I think this makes the review process a bit easier if that branch is supposed to be merged earlier anyway.