User:Chris Blackbourn/WeeklyReports2023
See also WeeklyReports2022
Calendar Week 1
January 3 - January 9
- Fix T103469 Very bad UV "sphere projection" unwrap commit
- Investigate T103670 UV Editing: Lock Borders - Incorrectly defines borders
- Differential Simplify matrix multiply logic (Part 1 of 2)
- WIP UV Grid Unwrap
Calendar Week 2
January 10 - January 16
- Fix T103787 T103670. UV islands with mark seam would tear at boundaries. Differential Cleanup Commit
- Debug T103707 UV Select Overlap incorrectly detects some faces as overlaps
- WIP Simplify Matrix Multiply (Part 1 of 2)
- Investigate T99249 Ply Exporter broken with use_uv=True if uv non-unique
- Investigate T102683 Triangulation of UVs in UV editor
- Investigate T103868 2D Transform gizmo not drawn and non-responsive if it would have zero area.
- WIP UV Grid Unwrap
Calendar Week 3
January 17 - January 23
- Grid Unwrap UV, Design review build now for download
- Simplify matrix logic commit Part 1 of 2
- WIP Simplify matrix logic (Part 2 of 2) (offline)
- Fix regression, T103971 Live unwrapping wraps hidden faces commit
- Investigate T103868 UV Manipulator disappears if AABB of selection has zero area.
- WIP extended feature T103469 UV "sphere projection" unwrap with Seams
Calendar Week 4
January 24 - January 30
- Fix T98594, UV Editor Redraw problem with geometry nodes. commit
- Fix T103868, Missing UV Transform gizmo if it has zero area. commit
- Resolve T103975, Add UV Select Similar Object and UV Select Similar Winding. commit
- Investigate T103956, UV Sculpt brushes should work in multi-object edit mode.
- Cleanup UV winding calculation, reducing memory allocation pressure. commit
- WIP Grid Unwrap (offline)
- WIP Merge UV Packing Engines. (offline)
Calendar Week 5
January 31 - February 6
- Add UV Seam support for UV Sphere Unwrap Differential
- WIP Grid Unwrap (offline)
- WIP Merge UV Packing Engines. (offline)
Calendar Week 7
February 7 - February 13
- Gitea migration
- WIP Grid Unwrap (offline)
- WIP Merge UV Packing Engines. (offline)
Calendar Week 8
February 14 - February 20
- More Gitea migration
- UV Alternate face selection, now with click-select, lasso select, circle select and rectangle select. Updated version Download
- Test and Fix for
mul_m3_series
andmul_m4_series
with aliased parameters Pull Request - Add seam support to UV Sphere Project and UV Cylinder Project Pull Request
Calendar Week 9
February 21 - February 27
- Migrating WIP from previous blender repo to gitea.
- Commit fix for
mul_m3_series
andmul_m4_series
commit - Packing research, incremental migrate from Editor to bf_geometry. Pull Request
Calendar Week 10
February 28 - March 6
- Update UV Sphere Projection and UV Cylinder Projection with Seam support. commit
- Migrate UV packing from Editor to bf_geometry commit
- Investigate advanced "Minimize Stretch" techniques with Julien Kaspar
- WIP Fix #102843: Add UV Packer with O(nlogn) performance. Pull Request
Calendar Week 11
March 7 - March 13
- Fix #102843. Add novel UV Packing strategy, the incredibly fast "Alpaca", ("L-Packer") which packs in
O(n log n)
time complexity. commit
- Fix unreported UV regression, margin was offset. commit
- WIP Alpaca_Rotate, the fast L-Packer which also supports rotation.
Calendar Week 12
March 14 - March 20
- Improve packing efficiency on non-square materials. commit
- WIP xatlas packer, the brute force, bitmap occupancy, packer that supports irregular shapes. Pull Request
- WIP Alpaca_Rotate, the fast L-Packer which also supports rotation.
Calendar Week 13
March 21 - March 27
- Add xatlas packer, the brute force, bitmap occupancy, packer that supports irregular shapes. commit
- WIP Alpaca_Rotate, the fast L-Packer which also supports rotation.
- Investigate 105860, Crash when adding UV Layer.
- Planning "perfect" packer, the packer which produces optimal results for some inputs. e.g. optimal square packing
Calendar Week 14
March 28 - April 3
- Investigate #106314 UV Copy/Paste problem (Issue for 3.5 backporting)
- Add Alpaca_Rotate, the fast L-Packer which also supports rotation. commit
- Change packing to use a {pivot, half-diagonal} representation commit
- Simplify aspect ratio usage in UV Unwrapper commit
- Improve performance of xatlas strategy when packing aligned quads commit
- WIP support rotation in the xatlas packer (offline)
- Planning "perfect" packer, the packer which produces optimal results for some inputs. (offline)
Calendar Week 15
April 4 - April 10
- Add support for non-square bitmaps in alpaca_rotate commit
- Add rotation in the xatlas UV Packer commit
- UV Packing cleanup commit
- Fix #106314, UV Paste operator, warn when fail to find a match (commit) and return OPERATOR_CANCELLED when no change to prevent creating an UNDO state. (commit)
- Adding "job" support to UV Packer, to add a progress bar and stop button. (WIP)
- Adding UV Packing new feature, "Overlapping islands stick together" (WIP)
- Planning: pin support for UV Packing. (offline)
- Planning "perfect" packer, the packer which produces optimal results for some inputs. (offline)
Calendar Week 16
April 11 - April 17
Mostly clean up work, paving the way for a few new packing features (Pack overlap, pin support, jobs)
- New feature for UV Packing, "Overlapping islands stick together" commit
- UV Packing, move pre-rotation inside packing engine commit
- UV Unwrap cleanup commit
- Planning "perfect" packer, the packer which produces optimal results for some inputs. (offline)
Calendar Week 17
April 18 - April 24
As Blender 3.6 enters Bcon2, mostly clean up work, checking regressions and investigating repros.
- Updating documentation for Blender 3.6. (Awaiting write-access to
svn commit
)
- Planning UV improvements for Blender 4.0
- Planning "perfect" packer, the packer which produces optimal results for some inputs. (offline)
Calendar Week 18
April 25 - May 1
- More updating documentation
- UV Packing, rotate to minimum square Commit
UV Packing now produces optimal layouts for the important n=1
case on all inputs and options.
(e.g. The UV Unwrapper often produces a single island, which can now be packed optimally into the unit square.)
- Add new UV Packing option,
scale_to_fit
, to pack without scaling Commit
- Fix UV Packing regression with
fraction
margin method when UVs don't fit in unit square. Commit
Calendar Week 19
May 2 - May 8
- UV Packing, improve UV layout efficiency. Commit
UV packing now produces optimal layouts for many uniform-square packing inputs.
- UV Packing, add multiple options for pinned islands, lock scale, lock position etc. Commit
- Improve UV Packing efficiency further by re-ordering packing operations. Commit
- Debugging and partial fix for #104513, different UV unwrap results on x86_64 and apple silicon CPUs. Commit
Calendar Week 20
May 9 - May 15
- (With Campbell), Add progress bar and ability to cancel UV Packing Commit
- Add Pinned islands support for UV Packing Commit
- Ignore pinned islands - Normal (default) - Lock scale - Lock rotation - Lock position of pinned UV islands.
- Further efficiency improvements for UV Packing Commit
- Fix #107898: UV Packing regression Commit
- Debugging #104513, different UV unwrap results on x86_64 and apple silicon CPUs.
Calendar Week 21
May 16 - May 22
- Debugging #104513: Different UV unwrap results on x86_64 and apple silicon CPUs.
- Debugging #108117: Crash in uv editor with hidden geometry (PR in progress)
- UV: Packing problems with locked-position. Pull Request
- UV: Fix packing problem with locked-position and large island count Commit
- UV: Fix packing problems with locked islands. Commit
- WIP: SculptUV on multiple objects (large!)
- Investigate circle packing (offline)
Calendar Week 22
May 23 - May 29
- Online meeting with artists from a major games studio which uses Blender to discuss enhancements for Vertex Color Attributes. (More to come here)
- UV: Add additional options for rotation while UV Packing, "Any", "Cardinal" and "Axis-Aligned" commit
- Debugging #104513: Different UV unwrap results on x86_64 and apple silicon CPUs.
- UV: Fix additional packing problems with locked-position and original-bounding-box. commit
- UV: Update UI for UV Packing Pull Request
- Fix #108117: Crash in uv editor with hidden geometry commit
- Debugging #108222: Copy/Paste UVs sometimes merges vertices
Research continues on "Optimal" packing, for n=11 and n=17 squares.
Calendar Week 23
May 30 - June 5
- Add optimal packing for n=11, n=18, n=19 and n=26 squares. commit
- Update UI for the Pack Islands operator commit
- Fix a memory leak during Pack Islands commit
- Write proposal for Channels in the Vertex Paint Mode #108404
- Update manual with latest UV Packing changes PR