PBVH image texture painting implementation #96225

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This is an list of tasks to implement #96223 (PBVH image texture painting technical design). There is a mix of short and long term tasks, the target Blender release of each is unknown still.

Dependencies (Blender 3.2)

D12587: Move Sculpt Colors From Experimental
D13897: PBVH Draw Support for EEVEE
D14179: Revamp Vertex Paint With C++ (Support both per-vertex and per-corner colors in old Vertex Paint mode)

3D Texture Brush

3D brush prototype (temp-3d-texturing-brush-b branch) D14261: WIP: 3D Texturing brush experiments.
PBVH iterator refactor to use C++?
Optimized GPU updates
- Only modified tiles
- Disable/optimize mipmaps
- #103244 (3D Texturing: Limit Eevee samples to 1 during paint stroke.)
Brush Optimizations
- #101489 (Sculpt: Evaluate multiple paint steps at the same time.)
- #101490 (Sculpt: Split clipping test from brush test.)
#96709 (Select painting target for paint brushes)
#96710 (Add support for pixels in PBVH)
#97352 (3D texturing: Fix seam bleeding)
#97353 (PBVH: Split PBVH Pixels into more nodes.)
#96708 (Migrate Texture To Texture mask for existing brushes)
#97344 (3D texturing: Move pixel extraction to a background job)
#97479 (Add undo support to PBVH image texturing painting.)
#104117 (3D Texturing: When changing the texture resolution, the pixel data isn't recreated)

Canvas Selector

#97345 (Canvas Selector UX: Add option to create color layers directly from the popover.)
#97346 (Canvas Selector UX: Add option to create a color attribute in material mode.)
Proper naming (Not just mentioning textures in "Material" mode)
Implement "Add Simple UVs" button

Modes

Move both sculpt vertex color and image texture painting to dedicated Paint mode
- Stencil Mask (#97955)
- External Quick Edit
- Cavity Masking (#98383)
Make Paint mode feature complete enough to remove old Vertex Paint mode
- Vertex/Face selection masking (#97955)
- Dirty Vertex Colors (Already implemented as "Dirty Mask". Is just lacking adjust last operation options) (#98383)
- Vertex color from Weight

Tools

#98589 (Paint Mode: Color Sampling)
#98590 (Paint Mode: Erasing)
Fill
Blur
Projection
- #98593 (Paint Mode: Backface Occlusion)
- 3D Lattice to control projection
#98601 (Paint Mode: Clone Brush)
Smear
Masking
- Vertex, Face & Pixel level masking (#97955)
- Auto masking (Topology, Face Sets, Boundaries) (#99203)
- Create mask by color tool
- Mask Filters
Face Sets
- Pixel level "face sets" (ID maps)
Color Filter

This is an list of tasks to implement #96223 (PBVH image texture painting technical design). There is a mix of short and long term tasks, the target Blender release of each is unknown still. **Dependencies (Blender 3.2)** - [x] [D12587: Move Sculpt Colors From Experimental](https://archive.blender.org/developer/D12587) - [x] [D13897: PBVH Draw Support for EEVEE](https://archive.blender.org/developer/D13897) - [x] [D14179: Revamp Vertex Paint With C++](https://archive.blender.org/developer/D14179) (Support both per-vertex and per-corner colors in old Vertex Paint mode) **3D Texture Brush** - [x] 3D brush prototype (`temp-3d-texturing-brush-b` branch) [D14261: WIP: 3D Texturing brush experiments.](https://archive.blender.org/developer/D14261) - [ ] PBVH iterator refactor to use C++? - [ ] Optimized GPU updates - [x] Only modified tiles - [x] Disable/optimize mipmaps - [ ] #103244 (3D Texturing: Limit Eevee samples to 1 during paint stroke.) - [ ] Brush Optimizations - [ ] #101489 (Sculpt: Evaluate multiple paint steps at the same time.) - [ ] #101490 (Sculpt: Split clipping test from brush test.) - [x] #96709 (Select painting target for paint brushes) - [x] #96710 (Add support for pixels in PBVH) - [ ] #97352 (3D texturing: Fix seam bleeding) - [x] #97353 (PBVH: Split PBVH Pixels into more nodes.) - [ ] #96708 (Migrate Texture To Texture mask for existing brushes) - [ ] #97344 (3D texturing: Move pixel extraction to a background job) - [x] #97479 (Add undo support to PBVH image texturing painting.) - [ ] #104117 (3D Texturing: When changing the texture resolution, the pixel data isn't recreated) **Canvas Selector** - [x] #97345 (Canvas Selector UX: Add option to create color layers directly from the popover.) - [x] #97346 (Canvas Selector UX: Add option to create a color attribute in material mode.) - [ ] Proper naming (Not just mentioning textures in "Material" mode) - [ ] Implement "Add Simple UVs" button **Modes** - [ ] Move both sculpt vertex color and image texture painting to dedicated Paint mode - [ ] Stencil Mask (#97955) - [ ] External Quick Edit - [x] Cavity Masking (#98383) - [ ] Make Paint mode feature complete enough to remove old Vertex Paint mode - [ ] Vertex/Face selection masking (#97955) - [x] Dirty Vertex Colors (Already implemented as "Dirty Mask". Is just lacking adjust last operation options) (#98383) - [ ] Vertex color from Weight **Tools** - [ ] #98589 (Paint Mode: Color Sampling) - [ ] #98590 (Paint Mode: Erasing) - [ ] Fill - [ ] Blur - [ ] Projection - [x] #98593 (Paint Mode: Backface Occlusion) - [ ] 3D Lattice to control projection - [ ] #98601 (Paint Mode: Clone Brush) - [ ] Smear - [ ] Masking - [ ] Vertex, Face & Pixel level masking (#97955) - [ ] Auto masking (Topology, Face Sets, Boundaries) (#99203) - [ ] Create mask by color tool - [ ] Mask Filters - [ ] Face Sets - [ ] Pixel level "face sets" (ID maps) - [ ] Color Filter

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

Added subscribers: @brecht, @Jeroen-Bakker, @JosephEagar

Added subscriber: @TheRedWaxPolice

Added subscriber: @Harti

This comment was removed by @Harti

*This comment was removed by @Harti*

For feature requests and feedback please use other channels:
https://wiki.blender.org/wiki/Communication/Contact#User_Feedback_and_Requests

This task is purely for development planning, anything else is considered off topic here.

For feature requests and feedback please use other channels: https://wiki.blender.org/wiki/Communication/Contact#User_Feedback_and_Requests This task is purely for development planning, anything else is considered off topic here.

Added subscriber: @BertVandenBosch

I think we should use the C++ task API for this. It makes for much cleaner code, and helps avoid the proliferation of either lots of little structs, or one giant one (e.g. SculptThreadedTaskData).

Added subscriber: @iloveyehan

Added subscriber: @2046411367

Added subscriber: @slumber

Added subscriber: @pauanyu_blender

Added subscriber: @JulienKaspar

In order to not cause any regression I added some features in the description from the Vertex & Image Paint modes that would need to be implemented in Paint Mode.
Any further design and to-do tasks can then take them into account.

In order to not cause any regression I added some features in the description from the Vertex & Image Paint modes that would need to be implemented in Paint Mode. Any further design and to-do tasks can then take them into account.

Added subscriber: @lichtwerk

Added subscriber: @Cole-Marcus

Added subscriber: @ClinToch

Added subscriber: @jfmatheu

Added subscriber: @DarkKnight

Added subscriber: @Sparazza

Added subscriber: @Yuro

Added subscriber: @DanielGrauer

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PBVH image texture painting implementation #96225