Reference/Release Notes/2.79/a

Blender 2.79a: Bug Fixes

Changes from revision rBe8e40b17 to rB4c1bed0a, inclusive.

Total fixed bugs: 202 (117 from tracker, 85 reported/found by other ways).

Note: Nearly all commits from 2.79 are listed here (over 75% of total), only really technical/non-user affecting ones have been skipped.

Objects / Animation / GP

Animation

• Fix #52932: Driver with target of custom property from scene fails to update (rBad834085).
• Fix #52835: When driven IK influence change, ik animation have 1 frame delay (rB89de073e).

• Fix unreported: Fix missing ID remapping in Action editor callback (rB9f6d5d67).
• Fix unreported: #50354: Action length calculation added unnecessary padding if some F-Curves only contained a single key (on the last real frame of the action) (rBf887b8b2).
• Fix unreported: Fix: Undo pushes were missing for Add/Remove Driver Variable buttons, and Remove Driver button (rB08e16e0b).

Grease Pencil

• Fix unreported: Fix: When transforming GP strokes in "Local" mode, the strokes would get obscured by the transform constraint lines (rB99e4c819).

Objects

• Fix #52729: Decimals not showing over 100m or 100 feet (rB5384b2a6).
• Fix #52140: Align objects centers using origin for text (rB3a0f199a).

Dependency Graph

• Fix #52432: Blender crashes while using Ghost (new depsgraph) (rB2213153c).
• Fix #52741: Follow track with depth object crashes Blender with new depsgraph (rBd5dbe0c5).
• Fix #53547: Metaballs as dupli objects are not updated with the new Depsgraph (rB8cdda3d2).

• Fix unreported: Transform: Enable recursion dependency check for new depsgraph (rBef04aa4a).
• Fix unreported: Depsgraph: Fix relations for metaballs (rB7103c6ef).

Data / Geometry

Armatures

• Fix #53300: Bone Extrude via Ctrl + Click is not done from active bone tail (rB96919606).
• Fix #53054: Parentless bone + IK crashes (rBc63e0886).

Curve/Text Editing

• Fix #52860: 3D Text crashes w/ Ctrl Backspace (rBb969f7eb).
• Fix #53410: 3D Text always recalculated (rB480b0b5d).
• Fix #53586: Surfaces collapse when joined (rB1611177a).

• Fix unreported: Curves: Fix wrong bitset being checked against CYCLIC bit flag (rB2edc2b49).

Mesh Editing

• Fix #53145: bevel tool fails when used a second time (rB36f324fc).
• Fix #53145: bevel tool does not start with amount at zero (rBf1a4e130).
• Fix #52723: Reset UV layers failed (rB06410697).
• Fix #52748: Select shortest face path fails (rB60bfa969).
• Fix #52384: Bridge pair result depends on other loops (rB495aa77b).
• Fix #53131: Incorrect vert-edge angle calculation (rB60e8d86f).
• Fix #53441: Inset doesn't start at zero (rB19b27d84).
• Fix #53529: Rip crashes w/ wire edge (rB52a5daa4).
• Fix #53343: Custom Normal Data Transfer Crashes when some vertexes have no faces (rBff8c9c59).
• Fix #53420: Vertex Groups: The "-" button gets a hidden function (rB50ca70b2).
• Fix #52733: Percent mode for Bevel sometimes had nans (rB48079e1f).
• Fix #52871: BLI_polyfill_beautify_quad_rotate_calc_ex was mistakenly considering the state as degenerated (rB9298d99b).
• Fix #52871: beauty fill error (rB9d501d23).
• Fix #53143: Knife Crash after Grid Fill (rB4f247ed0).
• Fix #53713: User remap failed w/ texface images (rB26ffade5).
• Fix #52818: Tangent space calculation is really slow for high-density mesh with degenerated topology (rB9a5320ae).
• Fix #53678: Smart Project UV margin ignores units (rB42e207b5).

• Fix unreported: Fix for inset when accessed from spacebar search (rBdb3e3f9c).
• Fix unreported: Edit Mesh: click extrude, ensure inverse matrix (rB3e3a27d0).
• Fix unreported: Polyfill Beautify: option to rotate out of degenerate state (rB0834eefa).
• Fix unreported: BMesh: use less involved check for edge rotation (rB58ab62ed).
• Fix unreported: Avoid bias when calculating quad split direction (rB569d2df6).
• Fix unreported: Beauty fill was skipping small faces (rB1b613053).
• Fix unreported: Polyfill Beautify: half-edge optimization (rB4a457d4f).
• Fix unreported: Use BLI_heap_reinsert for decimate and beautify (rBeaeb0a00).
• Fix unreported: BMesh: move bridge tools stepping logic into macro (rB02b20678).
• Fix unreported: Subsurf: Avoid global lock for loops and orig index layers (rB83b06030).
• Fix unreported: Subsurf: Avoid possible use of partially initialized edge hash (rB72151f3e).
• Fix unreported: Fix scalability issue in threaded code of Mesh normals computation (rB71e0894e).

Modifiers

• Fix #51074: Boolean modifier inverts operation (rBd07011da).
• Fix #52291: Boolean fails w/ co-linear edged ngons (rB78cc3c82).
• Fix #52763: Boolean problem with vertex group (rB00d80975).
• Fix #52823: New Depsgraph - Shrinkwrap crashes blender (rB754630ce).
• Fix #53007: OpenSubdiv + transparency = artefact/crashes (rBba40d8f3).
• Fix #53398: Surface deform modifier says that convex polygons are concave for big faces (rB4c46f693).

• Fix unreported: Fix (irc-reported by @sergey) invalid precision value in a float RNA property (rB8e43a9e9).

Material / Texture

• Fix #53116: default texture coordinates for volume materials are blank (rB576899b9).
• Fix #52953: Crash removing material (rB243b961c).
• Fix #53509: Datablock ID Properties attached to bpy.types.Material are not loaded (rB0c365472).

• Fix unreported: Fix logic for pinning textures users from context (rB8f9d9ba1).

Physics / Simulations / Sculpt / Paint

Particles

• Fix #53552: Unneeded particle cache reset on frame change (rB6f19787e).
• Fix #52732: Particle system volume grid particles out of volume (rB17c00d22).
• Fix #53513: Particle size showing in multiple places (rBc70a4502).
• Fix #53832: Particle weight paint crash (rB5b3538e0).
• Fix #53823: Particle weight brush crash (rBb6481cbb).

• Fix unreported: Fix missing update for particles w/ fluids (rB84361a07).

Physics / Hair / Simulations

• Fix #53650: remove hard limits on force field size and max distance (rB2a9abc0f).

• Fix unreported: Fix error copying smoke modifier uv layer (rB9f032c38).
• Fix unreported: Depsgraph: Don't make non-dynamic hair dependent on time (rB76032b13).

Sculpting / Painting

• Fix #53577: Rake sculpt/paint wrong on first step (rB413817a3).
• Fix #52537: Dyntopo "detail flood fill" doesn't work in some cases (rB1b8e8326).
• Fix #53593: sculpt brush rake spacing bug after recent bugfix (rB4c1bed0a).

• Fix unreported: Fix brush reset (missing notifier) (rB98dc9072).
• Fix unreported: Fix sculpt secondary color missing some brushes (rB6058b651).

Image / Video / Render

Image / UV Editing

• Fix #53092: errors reading EXR files with different data/display window (rBf901bf6f).
• Fix #52739: Crash loading corrupted video files (rB9c39f021).
• Fix #52811: At any framerate selected, video exported with 1000fps (rB3163d0e2).
• Fix #52920: Saving Tiff Files type Blender crashes (rBd305c101).
• Fix #53499: Cannot load DPX files (rBb8bdca8c).

• Fix unreported: Fix writing Iris images w/ invalid header (rBacae901a).

Masking

• Fix #52840: New Depsgraph - Mask editor not working correctly (rB69062cdd).
• Fix #52749: New Depsgraph - Render View Mask is not initialized correctly (rB53818251).
• Fix #53419: Masking "Add" menu is not present in Image editor, but shortcut is (rBc8f95c78).

Motion Tracking

• Fix #52851: Per-frame traking is broken when sequence doesn't start at frame 1 (rBf0743b56).
• Fix #53612: Blender crashes on CleanTracks with 'DELETE_SEGMENTS' and a disabled marker (rBa1d05ac2).

• Fix unreported: Tracking: Fix crash when tracking failed (rB350f5c68).
• Fix unreported: Tracking: Create mesh from selected tracks only (rB333ef6e6).

Nodes / Compositor

• Fix #53360: crash with GLSL bump mapping and missing group output node (rBbb897596).
• Fix #52299: X resolution of 4 causes nodes to collapse (rBcdc35e63).
• Fix #53371: Keying Node fails with values above 1 (rB1c7657be).
• Fix #52113: Compositor doesnt mix unrendered render layers well (rB31823366).
• Fix #53263: Proposed Blender crashes when rendering with Stabilizer 2D node without movie selected (rBce35151f).
• Fix #53696: Compositor HSV limits changed (rB528e00da).
• Fix #52927: Compositor wrong scale when scale size input is connected to complex node (rB259e9ad0).
• Fix #47212: Luminance Key not working with HDR and out-of-gamut ranges (rB13973a5b).

• Fix unreported: Fix compositor node links getting lost on file load for custom render passes (rB6bd1189e).
• Fix unreported: Node selection: Stop operator when mouse selection selected a node (rBbf58ec92).
• Fix unreported: Compositor: Ensured 16 byte alignment for variables accessed by SSE instructions (rB02bac54f).
• Fix unreported: (Nodes) Display image name if any in the Image and Texture Image node title (rB010cf35e).
• Fix unreported: Fix old files with changed node socket type not loading correctly (rB79563d2a).

Render

• Fix #52679: Hole in bake normal (rB759af7f1).
• Fix #53185: After rendering an animation (Ctrl-F12), pressing F12 no longer renders single frames only (rB6cfc5edb).
• Fix #53810: Crash removing a scene used in render (rB5ddcad43).

• Fix unreported: Fix incorrect color management when saving JPG previews for EXR (rB1dbdcfe9).
• Fix unreported: Fix leak when rendering OpenGL animations (rBe4dce3b3).

Render: Cycles

• Fix #53129: Cycles missing update when changing image auto refresh (rBa6e55581).
• Fix #53217: GLSL principled BSDF black with zero clearcoat roughness (rBd564beda).
• Fix #52368: Cycles OSL trace() failing on Windows 32 bit (rB2bc667ec).
• Fix #53348: Cycles difference between gradient texture on CPU and GPU (rB198fd0be).
• Fix #53171: lamp specials strength tweak fails with renamed emission nodes (rB5b2d5f90).
• Fix #52573: Cycles baking artifacts (rBb0c55d5c).
• Fix #51416: Blender Crashes while moving Sliders (rBaafe528c).
• Fix #53048: OSL Volume is broken in Blender 2.79 (rBad738542).
• Fix #53559: Auto texture space for text and font is wrong in Cycles (rBe7aad8fd).
• Fix #53600: Cycles shader mixing issue with principled BSDF and zero weights (rB836a1ccf).
• Fix #52801: reload scripts causes Cycles viewport render crash (rBf1ee24a2).
• Fix #53017: Cycles not detecting AMD GPU when there is an NVidia GPU too (rB1f50f067).
• Fix #53755: Cycles OpenCL lamp shaders have incorrect normal (rB2ca933f4).
• Fix #53692: OpenCL multi GPU rendering not using all GPUs (rB30a0459f).
• Fix #53567: Negative pixel values causing artifacts with denoising (rB824c0392).
• Fix #53012: Shadow catcher creates artifacts on contact area (rBc3237cdc).

• Fix unreported: OpenVDB: Fix compilation error against OpenVDB 4 (rB0cdfe887).
• Fix unreported: Cycles: Fix possible race condition when generating Beckmann table (rBb5c629e6).
• Fix unreported: Fix Cycles bug in RR termination, probability should never be > 1.0 (rBdf1af9b3).
• Fix unreported: CMake: support CUDA 9 toolkit, and automatically disable sm_2x binaries (rBcd9c68f0).
• Fix unreported: Fix part of #53038: principled BSDF clearcoat weight has no effect with 0 roughness (rB440d647c).
• Fix unreported: Fix incorrect MIS with principled BSDF and specular roughness 0 (rB866be342).
• Fix unreported: Cycles: Fix possible race condition when initializing devices list (rB93d711ce).
• Fix unreported: Cycles: Fix wrong shading when some mesh triangle has non-finite coordinate (rB075950ad).
• Fix unreported: Cycles: Fix compilation error with latest OIIO (rB49f57e53).
• Fix unreported: Cycles: Fix compilation error with OIIO compiled against system PugiXML (rBb6f3fec2).
• Fix unreported: Cycles: Fix compilation error of standalone application (rB391f7cc4).
• Fix unreported: Cycles: Workaround for performance loss with the CUDA 9.0 SDK (rBb3adce77).
• Fix unreported: Cycles: Fix difference in image Clip extension method between CPU and GPU (rBa50c381f).
• Fix unreported: Cycles: Fix crash opening user preferences after adding extra GPU (rBa3616980).
• Fix unreported: Cycles: Fix bug in user preferences with factory startup (rB2f5a027b).

Sequencer

• Fix #52890: Crash unlinking sequencer sound (rBeaba111b).
• Fix #53430: Cut at the strip end fails w/ endstill (rB5ab1897d).
• Fix #52940: VSE Glow Effect Strip on transparent images has no blur (rB3ad84309).
• Fix #53639: text sequence strips no stamped into render (rB8f7030e5).

UI / Spaces / Transform

3D View

• Fix #52959: Local view looses clip range on exit (rB7f6e9c59).
• Fix #53850: Lock to Cursor breaks 3D manipulators (rBb90f3928).

• Fix unreported: Fix ruler access from search pop-up (rBb0fbe95a).
• Fix unreported: 3D View: use shortest angle between quaternions (rB2895cb22).

Input (NDOF / 3D Mouse)

• Fix #52998: disabled menu entries responding to key shortcuts (rB20c96cce).
• Fix #52861: Keymap editor filter doesn't show shortcuts using "+" (rBca236408).

Outliner

• Fix #53342: Outliner 'select hierarchy' broken (rB7153cee3).

Transform

• Fix #53463: Rotation numerical input shows instable behaviour (rB8a9d64b5).
• Fix #53309: Remove default 'Clear loc/rot/scale delta transform' shortcuts (rBc4f8d924).
• Fix #52086: Graph editor "normalize" drag errors for integers (rB9f916baa).
• Fix #53311: transform edge/normal orientation (rB57b11d8b).

User Interface

• Fix #52800: fix UI flickering with Mesa on Linux (rBc85a305c).
• Fix #53630: Effect strips not disFix #52977: playing Input data. Parent bone name disappeared in the UI in pose mode (rB4bc89d81).

• Fix unreported: Fix failure in our UI code that could allow search button without search callbacks, leading to crash (rBe8e40b17).
• Fix unreported: Add some security checks against future bad float UIprecision values (rB7e4be7d3).
• Fix unreported: UI: avoid int cast before clamping number input (rBa437b9bb).
• Fix unreported: UI: fullstop at end of tooltips (rB4c3e2518).
• Fix unreported: Fix incorrect allocation size (rB6b2d1f63).

Game Engine

• Fix unreported: Fix BGE sound actuator property access (rBd2d20777).

System / Misc

Collada

• Fix #53322: Collada export crash w/ shape keys (rB869e4a34).
• Fix #53230: avoid Nullpointer problems in Collada Exporter (rBeaf14b1e).
• Fix #52831: removed enforcement of matrix decomposition when animations are exported (rBa123dafd).

File I/O

• Fix #52816: regression can't open file in 2.79 (crash) (rBa4116673).
• Fix #53002: Batch-Generate Previews generate empty or none image for large objects (rB47a388b2).
• Fix #52514: don't clear filename when dropping directory path in file browser (rB625b2f5d).
• Fix #53250: Crash when linking/appending a scene to a blend when another linked scene in this blend is currently open/active (rB06df30a4).
• Fix #53572: Alembic imports UV maps incorrectly (rB0f841e24).

• Fix unreported: Alembic import: fixed mesh corruption when changing topology (rBbae796f0).

Other

• Fix #53274: Saving template prefs overwrites default prefs (rB38fdfe75).
• Fix #53637: Keymap from app-template ignored (rB8c484d0b).

• Fix unreported: Fix potential string buffer overruns (rB30f53d56).
• Fix unreported: Fix build with OSL 1.9.x, automatically aligns to 16 bytes now (rBf968268c).
• Fix unreported: WM: minor correction to user-pref writing (rB75aec5ee).
• Fix unreported: WM: don't load preferences on 'File -> New' (rB571e801b).
• Fix unreported: WM: load UI for new file, even when pref disabled (rB9f0ebb09).
• Fix unreported: Fix MSVSC2017 error (rB405874bd).
• Fix unreported: Fix SGI foramt reader CVE-2017-2901 (rB7b8b621c).
• Fix unreported: Memory: add MEM_malloc_arrayN() function to protect against overflow (rBa9727298).
• Fix unreported: Fix buffer overflows in TIFF, PNG, IRIS, DPX, HDR and AVI loading (rB16718fe4).
• Fix unreported: Fix buffer overflow vulernability in thumbnail file reading (rB04c51312).
• Fix unreported: Fix buffer overflow vulnerabilities in mesh code (rB9287434f).
• Fix unreported: Fix buffer overflow vulnerability in curve, font, particles code (rB8dbd5ea4).
• Fix unreported: Fix manual lookups (data is now lowercase) (rBcae8c68c).

Python

• Fix #53273: render bake settings properties not showing correct Python path (rB825aecae).
• Fix #52442: bl_app_templates_system not working (rBd8935315).
• Fix #53294: bpy.ops.image.open crash (rB8ea3f643).
• Fix #53191: Python API Reference link wrong in splash screen (rB5f2307d1).
• Fix #52982: Join operator with context override crashes Blender 2.79 (rB09c38726).
• Fix #53772: Presets don't support colons (rB91ce2957).

• Fix unreported: Fix bpy.utils.resource_path('SYSTEM') output (rB21ecdacd).
• Fix unreported: Fix setting the operator name in Py operator API (rB8c9bebfe).
• Fix unreported: Docs: add note for bmesh face_split_edgenet (rBa253b1b7).
• Fix unreported: Fix edge-split bmesh operator giving empty result (rBce6e30b3).
• Fix unreported: Fix BMesh PyAPI internal flag clearing logic (rB6639350f).
• Fix unreported: Docs: clarify return value for BVH API (rB0c456eb9).
• Fix unreported: bl_app_override: support empty UI layout items (rB6d640504).
• Fix unreported: Fix bad 'poll' prop callback API doc (rB3193045c).
• Fix unreported: Fix background_job template (rB38357cd0).
• Fix unreported: Fix bmesh.utils.face_join arg parsing (rB20cccb15).

System

• Fix #53004: XWayland ignores cursor-warp calls (rB1ab828d4).
• Fix #53068: AMD Threadripper not working well with Blender (rBdfed7c48).

• Fix unreported: GPU: Fix memory corruption in GPU_debug on GTX1080 (rB3a1ade22).
• Fix unreported: Task scheduler: Start with suspended pool to avoid threading overhead on push (rB8553449c).

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