Developer Meeting Notes

General Forums Blender Development Discussion
2970

4 November 2024
Notes for weekly communication of ongoing projects and modules.

Announcements

Modules & Projects

New Features and Changes

This is a selection of changes that happened over the last week. For a full overview including fixes, code only changes and more visit projects.blender.org .

BLI

  • Support accessing underlying memory buffer of Vector container (commit) - (Jacques Lucke)

Compositor

Implement various nodes for new CPU compositor:

  • Color Balance (commit ) - (Omar Emara)
  • Color Correction (commit) - (Omar Emara)
  • Exposure (commit) - (Omar Emara)
  • RGB Curves (commit) - (Omar Emara)
  • Hue Correct (commit) - (Omar Emara)
  • Color Ramp (commit) - (Omar Emara)
  • RGB to BW (commit ) - (Omar Emara)
  • Hue Saturation Value (commit ) - (Omar Emara)
  • Invert (commit) - (Omar Emara)
  • Alpha Convert (commit) - (Omar Emara)
  • Set Alpha (commit) - (Omar Emara)
  • Separate Color (commit) - (Omar Emara)
  • Combine Color (commit) - (Omar Emara)
  • Alpha Over (commit) - (Omar Emara)
  • Mix RGB (commit ) - (Omar Emara)

Curves

  • Convert handle types when transforming (commit ) - (Laurynas Duburas)
  • Align handles in transform operator (commit ) - (Laurynas Duburas)

Cycles

  • Remove support for Vega in Cycles AMD HIP backend (commit ) - (Alaska)

GHOST/SDL

  • Map the GrLess key (commit ) - (Campbell Barton)

GHOST/Wayland

  • Cache the result of hasClipboardImage (commit ) - (Campbell Barton)

GPU

  • Multithread compilation of shaders during tests (commit ) - (Clément Foucault)
  • Printf: Print buffer content even in case of overflow (commit ) - (Clément Foucault)

RNA

  • Make the PointerRNA struct non-trivial (commit) - (Bastien Montagne)

Sculpt

  • Use unified color for paint brushes by default (commit ) - (Sean Kim)

Subdiv

  • Remove evaluator C-API wrapper (commit ) - (Hans Goudey)

UI

  • Allow Region Overlap in Node Editor sidebar (commit ) - (Pablo Vazquez)
  • Add asset browser option to sort by catalogs, new default (commit ) - (Julian Eisel)
  • Replace “Extension” with “Add-on” for enable/disable operators (commit ) - (Campbell Barton)

USD

  • Make use of our valid() API for consistent validation (commit) - (Jesse Yurkovich)
  • Add support for animated volumes (commit ) - (Jesse Yurkovich)

Windows

  • Implement warning on Splash Screen regarding emulated builds on ARM64 (commit) - (Anthony Roberts)

Weekly Reports

Summary

In other news:

5 Likes
2971

this looks interesting :v:

3 Likes
2972

11 November 2024
Notes for weekly communication of ongoing projects and modules.

Announcements

Modules & Projects

This Summer’s Sculpt Mode Refactor — Blender Developers Blog

Developers Hans Goudey and Sean Kim give a report on the optimizations to sculpt mode in Blender 4.3.

1283×720 25.8 KB

Geometry Nodes Workshop: October 2024 — Blender Developers Blog

Summary of what was discussed at the Geometry Nodes workshop in October 2024.

Meeting Notes:

New Features and Changes

This is a selection of changes that happened over the last week. For a full overview including fixes, code only changes and more visit projects.blender.org .

Compositor

Implement nodes / functions for new CPU compositor:

  • Bokeh Image (commit ) - (Omar Emara)
  • Mask (commit) - (Omar Emara)
  • Texture (commit ) - (Omar Emara)
  • Movie Clip (commit) - (Omar Emara)
  • File Output (commit) - (Omar Emara)
  • Parallel reduction (commit) - (Omar Emara)
  • Levels (commit) - (Omar Emara)
  • Normalize(commit) - (Omar Emara)
  • Split (commit) - (Omar Emara)
  • SMAA (commit ) - (Omar Emara)
  • Anti-Alias (commit ) - (Omar Emara)
  • Z Combine (commit ) - (Omar Emara)
  • Tone Map (commit) - (Omar Emara)
  • Convert Color Space (commit) - (Omar Emara)
  • Bilinear sampling (commit) - (Omar Emara)

Curves

  • Add method to set curve types to RNA (commit ) - (Hans Goudey)
  • Select linked pick operator (commit) - (Hans Goudey)

Cycles

  • Tweak scheduling of GPU kernel compilation (commit ) - (Sergey Sharybin)

Draw

  • Reduce overhead of sharing meshes without attributes (commit) - (Jeroen Bakker)

Extensions

  • Exclude “wheels” from the static JSON package listing (commit) - (Campbell Barton)
  • Support for filtering based on Python versions (commit) - (Campbell Barton)
  • Quote paths in error messages, improve missing file error (commit) - (Campbell Barton)

GPU

  • Improve GLSL-C++ compatibility (commit) - (Clément Foucault)
  • Enable shader interface check for geometry shader fallback (commit) - (Clément Foucault)
  • Add support for shader assert (commit ) - (Clément Foucault)

Geometry Nodes

  • Avoid potential copy of attribute in simulation bake mixing (commit ) - (Hans Goudey)

Sculpt

  • Simplify & optimize position undo with shape keys (commit ) - (Hans Goudey)

USD

  • Enable material displacement support (commit ) - (Jesse Yurkovich)

VSE

  • Use snapping for retiming keys (commit) - (Richard Antalik)

ffmpeg

  • 10 and 12 bit video support (commit ) - (Aras Pranckevicius)

Weekly Reports

Summary
11 Likes
2973

We are just waiting for the completely overhauled bevel tool now and its related node type, as true prismatic/boolean extrusion (after a long wait) is now in the tracker and ready for review.
#130172 - Edit Mesh: New Extrude Boolean Tool - blender - Blender Projects

4 videos are on the tracker page to show what it can do.

15 Likes
2974

That’s fantastic! Looks really good.

2975

The devtalk feedback thread
Extrude Boolean - Feedback - Feature & Design Feedback - Developer Forum

Germano wants this in Blender 4.4, so download the build and give it a stress test.

4 Likes
2976

18 November 2024
Notes for weekly communication of ongoing projects and modules.

Announcements

Modules & Projects

New Features and Changes

This is a selection of changes that happened over the last week. For a full overview including fixes, code only changes and more visit projects.blender.org .

Anim

  • Add slot selector to NLA Action track buttons (commit) - (Sybren A. Stüvel)

Compositor

Ported more nodes to the new CPU compositor:

  • Keying Screen (commit ) - (Omar Emara)
  • Stabilize 2D (commit) - (Omar Emara)
  • EWA filtering (commit) - (Omar Emara)
  • Plane Deform (commit) - (Omar Emara)
  • Corner Pin (commit) - (Omar Emara)
  • Flip node (commit) - (Omar Emara)
  • Crop node (commit) - (Omar Emara)
  • Zero boundary EWA sampling (commit) - (Omar Emara)
  • Movie Distortion (commit) - (Omar Emara)
  • Lens Distort (commit) - (Omar Emara)
  • Displace node (commit) - (Omar Emara)
  • Map UV node (commit) - (Omar Emara)

Cycles

  • oneAPI: build binaries for Battlemage GPUs (commit) - (Nikita Sirgienko)

Geometry Nodes

  • Add “Limit Surface” option in subdivision surface node (commit ) - (Hans Goudey)

Nodes

  • Remove wrong tweak handling for reroutes (commit ) - (Leon Schittek)
  • Slightly improve editor drawing performance with large node trees (commit) - (Hans Goudey)

USD

  • Add option to merge shape with parent xform during import (commit) - (Charles Flèche)

VSE

  • Add Box Roundness option to text strips (commit) - (kitt)

Vulkan

  • Show supported device extensions in system-info output (commit) - (Lalit Shankar Chowdhury)

Weekly Reports

Summary
7 Likes
2977

25 November 2024
Notes for weekly communication of ongoing projects and modules.

Announcements

Modules & Projects

New Features and Changes

This is a selection of changes that happened over the last week. For a full overview including fixes, code only changes and more visit projects.blender.org .

Anim

  • Draw prop as ‘orange’ when changed value with stashed Actions present (commit ) - (Sybren A. Stüvel)
  • Symmetrize collection assignments when symmetrizing Armatures (commit ) - (Christoph Lendenfeld)

Attributes

  • Add 2D 16 bit integer type (commit ) - (Hans Goudey)

Compositor

  • Add fallback variant for pixel loader (commit ) - (Omar Emara)
  • Add integer pixel load and store functions (commit ) - (Omar Emara)
  • Implement nodes for new CPU compositor
    • ID Mask(commit ) - (Omar Emara)
    • Ellipse Mask (commit) - (Omar Emara)
    • Box Mask (commit ) - (Omar Emara)
    • Jump Flooding (commit ) - (Omar Emara)
    • Double Edge Mask (commit) - (Omar Emara)
    • Cryptomatte (commit) - (Omar Emara)
    • Sun Beams (commit ) - (Omar Emara)
    • Despeckle (commit) - (Omar Emara)
    • Denoise (commit ) - (Omar Emara)
    • Pixelate (commit) - (Omar Emara)
    • Summed Area Table (commit) - (Omar Emara)
    • Classic Kuwahara (commit ) - (Omar Emara)
    • Filter (commit) - (Omar Emara)
    • Bilateral Blur (commit) - (Omar Emara)
    • Symmetric Blur Weights (commit) - (Omar Emara)
    • Symmetric Separable Blur Weights (commit) - (Omar Emara)
    • Symmetric Separable Blur (commit) - (Omar Emara)
    • Deriche Gaussian blur (commit) - (Omar Emara)
    • Blur (commit ) - (Omar Emara)
    • Anisotropic Kuwahara (commit ) - (Omar Emara)
    • Van Vliet Gaussian blur(commit ) - (Omar Emara)

Cycles

  • Add OptiX 8.1 support (commit ) - (Patrick Mours)

DRW

  • Make manager and passes allow range of handles (commit ) - (Clément Foucault)
  • Batch Cache (commit ) - (Clément Foucault)

Geometry Nodes

  • Port triangulate node from BMesh to Mesh (commit ) - (Hans Goudey)

Grease Pencil

  • Setter for drawing property on frame python API (commit ) - (Falk David)

Nodes

  • Add new shader for node sockets (commit ) - (Leon Schittek)

Overlay-Next

  • Enable by default and add option to enable legacy code (commit ) - (Clément Foucault)

Report template

  • Add link to manual system information collection page (commit ) - (Alaska)

Spreadsheet

  • Improve mesh selection filter domain interpolation (commit ) - (Hans Goudey)

Transform

  • Remove unused “GPENCIL_SHRINKFATTEN” (commit) - (Germano Cavalcante)

UI

  • Keymap Editor: Add margin from scrollbar (commit ) - (Pablo Vazquez)
  • Support persistent view state, write tree-view height to files (commit ) - (Julian Eisel)
  • UV Editor: Remove unrelated tool panels (commit ) - (Nika Kutsniashvili)
  • Changes to Docking Operation Descriptions (commit) - (Harley Acheson)
  • Minimum Docking Target Size (commit ) - (Harley Acheson)
  • Notification When Hiding Objects (commit ) - (Harley Acheson)
  • Face Orientation Front Color Transparent (commit ) - (Harley Acheson)
  • Calm Warning in #130617 About Variable Mismatch (commit ) - (Harley Acheson)
  • Tweak VSE Text Strip UI to use panels for outline/shadow/box (commit ) - (Aras Pranckevicius)
  • Area Move Snap to Min and Max (commit) - (Harley Acheson)
  • Misc Changes to Area Splitting Operator (commit ) - (Harley Acheson)
  • Slightly Softer 50% Split Snap (commit) - (Harley Acheson)
  • Nodes: Remove some snapping options (commit ) - (Habib Gahbiche)

USD

  • Add option to merge transform and shape on export (commit ) - (Charles Flèche)
  • Add support for animated point instancers (commit) - (Jesse Yurkovich)

VSE

  • Optimize Text Box w/ roundness with multi-threading (commit ) - (Aras Pranckevicius)
  • Remove byte position index from our time codes (commit ) - (Sebastian Parborg)

Vulkan

  • Use Vulkan 1.1 feature enablement (commit ) - (Jeroen Bakker)
  • Add support for legacy platforms (commit ) - (Jeroen Bakker)
  • Make dynamic rendering optional (commit ) - (Jeroen Bakker)
  • Limit NVIDIA drivers to 550 and above. (commit ) - (Jeroen Bakker)

Weekly Reports

Summary
6 Likes
2978

18 posts were split to a new topic: Adopting a CLA for Blender contributions

2979

2 December 2024
Notes for weekly communication of ongoing projects and modules.

Announcements

Modules Reorganization

  • Images & Movies sub-module has been moved from Core to the Pipeline & I/O module.
  • Asset System is now its own module, and not a sub-module from Pipeline & I/O anymore.

Modules & Projects

New Features and Changes

This is a selection of changes that happened over the last week. For a full overview including fixes, code only changes and more visit projects.blender.org .

BLI

  • Add pixel sampling functions with arbitrary UV wrapping modes (commit ) - (Aras Pranckevicius)

Compositor

Implement more nodes for the new CPU compositor:

  • Morphological Blurring(commit ) - (Omar Emara)
  • Bokeh Blur (commit) - (Omar Emara)
  • Defocus (commit) - (Omar Emara)
  • Symmetric Separable Variable Size Blur (commit ) - (Omar Emara)
  • Directional Blur (commit) - (Omar Emara)
  • Inpaint (commit) - (Omar Emara)
  • Vector Blur (commit) - (Omar Emara)
  • Morphological Distance Feather Weights (commit) - (Omar Emara)
  • Morphological Distance algorithm (commit) - (Omar Emara)
  • Morphological Distance Feather algorithm (commit) - (Omar Emara)
  • Dilate (commit) - (Omar Emara)
  • Keying (commit) - (Omar Emara)
  • Glare (commit ) - (Omar Emara)

Cycles

  • Use fused OptiX OSL programs (commit ) - (Lukas Stockner)

Extensions

  • Suppress noisy prints for extension wheel filtering (commit) - (Campbell Barton)
  • Use replace exists with lexists to check a path can be used (commit) - (Campbell Barton)

GPU

  • Move Polyline shader to primitive expansion (commit) - (Clément Foucault)
  • Add back support for uchar4 color when using widelines (commit) - (Clément Foucault)

Geometry Nodes

  • Add dynamic label to warning node (commit) - (seanterelle)

Grease Pencil

  • Add all supported modes to simplify operator (commit) - (YimingWu)
  • Save Layer Group expanded state (commit ) - (Falk David)

Nodes

  • Support subpanels in node group interface (commit ) - (Jacques Lucke)

Sequencer

  • Use uchar4 colors for drawing quad buffer again (commit) - (Clément Foucault)

Subdiv

  • Start replacement of “converter” abstraction (commit ) - (Hans Goudey)

UI

  • Show File Name on Recent Item Tooltip (commit) - (Harley Acheson)
  • Improved Calculation of Width of Collapsed Node Title (commit) - (Harley Acheson)
  • Implement snapping for node resizing (commit) - (Habib Gahbiche)
  • Win32 - Clipboard Image Paste from File Path (commit) - (Harley Acheson)

Vulkan

  • Allow suspending/resuming of layer tracking (commit) - (Jeroen Bakker)
  • Add method to query debug group of node (commit) - (Jeroen Bakker)
  • Add support for GPU_logic_op_xor_set (commit) - (Jeroen Bakker)

Weekly Reports

Summary
9 Likes
2980

9 December 2024
Notes for weekly communication of ongoing projects and modules.

Welcomes

Modules & Projects

New Features and Changes

This is a selection of changes that happened over the last week. For a full overview including fixes, code only changes and more visit projects.blender.org .

Animation

  • Change parameters of slots.new() RNA function (commit ) - (Nathan Vegdahl)
  • Start slot handles at a high number (commit ) - (Sybren A. Stüvel)

Compositor

  • Implement Scale node or new CPU compositor (commit ) - (Omar Emara)
  • Optimize pixel access in new CPU compositor (commit ) - (Omar Emara)
  • Allow CPU denoising in GPU compositor to use all CPU threads (commit ) - (Alaska)

Curves

  • Add python function to compare curve geometries (commit ) - (Falk David)

Geometry Nodes

  • Add “Collection” and “Object” input nodes (commit ) - (quackarooni)
  • Support text overlay when viewing matrix attributes (commit ) - (Jacques Lucke)
  • Improve detecting data-block dependencies (commit ) - (Jacques Lucke)

Grease Pencil

  • “Set Start Point” operator (commit ) - (Sean)

ImageEngine

  • Migrate to new draw manager (commit ) - (Jeroen Bakker)

Mesh

  • Move BVH storage to shared cache system (commit ) - (Hans Goudey)
  • Move custom normals to a generic attribute (commit ) - (Hans Goudey)

Metal

  • Remove SSBO Vertex Fetch (commit ) - (Clément Foucault)

Nodes

  • Change Compositing Switch node class from Layout to Converter (commit ) - (Jonas Holzman)
  • Expose Node Color Tag to the Python API (commit) - (Jonas Holzman)
  • Use topology cache directly for is_linked property in Python (commit) - (Jacques Lucke)

OBJ Import

  • Improved NURBS curve support (commit ) - (Laurynas Duburas)

Python

  • Add API function to reorder curves (commit) - (Falk David)

Sculpt

  • Optimize sculpt vertex neighbor storage (commit ) - (Hans Goudey)
  • Prevent entering mode when object is invisible (commit) - (Sean Kim)

Selection

  • Remove usage of Depth picking for viewport selection (commit) - (Clément Foucault)

UI

  • Use Separate Mouse Cursors for Join Operations (commit ) - (Harley Acheson)
  • Avoid redundancy with Adaptive Time Steps property name (commit) - (Bartosz Kosiorek)
  • Add missing tooltips to Principled BSDF for Sheen and Thin Film (commit) - (Bartosz Kosiorek)
  • Allow setting active modifier on linked object (commit ) - (Hans Goudey)

USD

  • Write sparse values for Camera, Light, and Skeleton attribute data (commit) - (Jesse Yurkovich)

Vulkan

  • Share driver check between GPU and GHOST (commit) - (Jeroen Bakker)
  • Hide devices of failing drivers (commit) - (Jeroen Bakker)
  • Unhide from behind developer extras (commit ) - (Alaska)
  • Pre-phase for initial uploading resources (commit ) - (Jeroen Bakker)

Weekly Reports

Summary
9 Likes
2981

16 December 2024
Notes for weekly communication of ongoing projects and modules.

Announcements

Modules & Projects

Overrides Workshop

The write-up for the overrides workshop is up . The workshop happened between the 3-4th of December 2024 at Blender HQ.

Overrides_worshop_cropped
Overrides_worshop_cropped1280×720 271 KB

The focus for the workshop was on how to make them easier to use and manage for productions.

New Features and Changes

This is a selection of changes that happened over the last week. For a full overview including fixes, code only changes and more visit projects.blender.org .

3D Text

  • Only use fallback characters for the default font (commit) - (Harley Acheson)
  • Use placeholder glyph, resolve error handling inconsistencies (commit) - (Campbell Barton)

Anim

  • When creating action slot by keying, name it after last-used slot (commit) - (Sybren A. Stüvel)
  • Make Slot::users_remove() gracefully deal with duplicate users(commit) - (Sybren A. Stüvel)
  • Explicity handle node trees when rebuilding action slot user cache (commit) - (Sybren A. Stüvel)

BLI

  • Allow extending a Vector with another Vector with move-semantics (commit) - (Guillermo Venegas)
  • Simplify creating the union of multiple index masks (commit) - (Jacques Lucke)

Compositor

  • Optimize constant size Bokeh Blur node (commit) - (Omar Emara)
  • Optimize Distance Dilate node (commit) - (Omar Emara)
  • Always use the new CPU compositor (commit) - (Aras Pranckevicius)
  • Optimize Dilate Distance Threshold node (commit) - (Omar Emara)

Curves

  • Remove usage of IndexMask (commit) - (Laurynas Duburas)

Cycles

  • Make OSL shader compilation threadsafe and multi-threaded (commit) - (Lukas Stockner)
  • Support Mie Scattering with particle size smaller than 5um (commit) - (Weizhen Huang)

EEVEE

  • Make sampling.reset() and sampling.is_reset() viewport only (commit) - (Clément Foucault)

GPU

  • Ensure viewport does not use uninitialized images (#119685 and others) (commit) - (Aras Pranckevicius)

Geometry Nodes

  • Propagate vertex groups in join / realize instances nodes (commit) - (Hans Goudey)

Grease Pencil

  • Add layer channel color property (commit) - (Pratik Borhade)
  • Add lasso/box erase operators in draw mode (commit) - (Falk David)

Installer

  • Windows: Various tweaks and updates to the installer (commit) - (Ray Molenkamp)

Materials

  • Take object and geometry material slot counts into account (commit ) - (Jacques Lucke)

Nodes

  • Remove labels and use placeholder in Attribute Node (commit) - (quackarooni)
  • Simplify location storage, remove hidden offfsets (commit) - (Hans Goudey)

PyGPU

  • Rename ‘program’ to ‘shader’ in documentation for ‘GPUBatch.draw’ (commit) - (Germano Cavalcante)
  • Show error for unsupported POLYLINE shader configurations (commit) - (Germano Cavalcante)

Sculpt

  • Simplify sphere mesh filter code (commit) - (Iliya Katueshenock)

Transform

  • Crazyspace support in edit mode for Curves and Grease Pencil (commit ) - (Lukas Tönne)

UI

  • Allow passing named integers via context (commit) - (Julian Eisel)
  • Use consistent naming for mode toggle on undo history (commit) - (Gilberto.R)
  • Outliner: Support ctrl/shift operations for exclude collection (commit) - (Pratik Borhade)

USD

  • Add new get_prim_map API callable from python on_import hooks (commit) - (Charles Flèche)
  • on_material_import() and texture IO hooks (commit) - (Michael Kowalski)

VSE

  • Improve retiming code readability (commit) - (Richard Antalik)
  • Optimize and cleanup modifiers (commit) - (Aras Pranckevicius)

Vulkan

  • Updated NVIDIA/Linux driver support (commit) - (Jeroen Bakker)
  • Add support for ReBAR (commit ) - (Jeroen Bakker)

Workbench

  • Separate depth of field shaders (commit ) - (Jeroen Bakker)

Weekly Reports

Summary
7 Likes