Week 202323


Week 202322


  • Workbench drawing


  • World lighting

Week 202321

  • Eevee-next: Reflection Probes
    • Recording of world background.
    • Adding world lighting to surfels.

Week 202320

  • Vulkan: Workbench [PR #107886]
    • SRGB Framebuffers GHOST SRGB swapchain
    • Convert to lower precision texture formats.
    • Blend state per color attribute
    • Read back of depth texture to support depth picking
    • Read back of a subarea of a buffer.
    • WIP: Add support for texel buffers (vertex buffers are working, but using a texture not).

Week 202319

  • Documentation about Vulkan [1]
  • Vulkan: Fix Compilation Issues on Windows [PR #107874]
  • Vulkan: Fix Incorrect Vertex Buffer State [PR #107875]
  • Vulkan: IndexBuffer as Subrange [PR #107871]
  • Vulkan: Initial Draw List [PR #107873]
  • Vulkan: AMD Swapchain [PR #107840]
  • Vulkan: Initial Graphics Pipeline [PR #106224]
  • Vulkan: Swap Chain [PR #107740]
  • Vulkan: Convert VertexBuffer to Contain Supported Attributes [PR #107733]
  • GPU: Added Tests For Blend state And Immediate Mode [PR #107834]
  • Vulkan: Make ShaderInput Optional [PR #107735]
  • Vulkan: Don't Use Tiled Drawing [PR #107728]
  • Vulkan: Ensure Minimum Size of VKBuffer [PR #107731]
  • Vulkan: Frame Buffer Flipping [PR #107743]
  • GPU: Initialize SRGB In TestCases [8759ae1760]
  • Vulkan: Extract Correct UniformBuf Name From Interface [PR #107736]

Week 202318

  • Vulkan: Share Device Between Contexts [PR #107606]
  • macOS: Reduce Edit Mode Drawing Artifacts [PR #107611]
  • Vulkan: Correct Aspectbits for Depth Textures [PR #107542]
  • Vulkan: Add FLOAT to SRGB and Depth24 Conversion [PR #107544]

Week 202317

  • Vulkan: Initial Graphics Pipeline [PR #106224]
    • Vulkan: Texture Unpacking [PR #107360]
    • Vulkan: Index Buffer [{{PullRequest|107358]]}
    • Vulkan: Conversions between Blender and Vulkan Enums [PR #107336]
    • Vulkan: Add streaming buffers [PR #107335]
    • Vulkan: Command Buffer [PR #107337]
    • Vulkan: Uniform Buffer [PR #107334]
    • Vulkan: Shader Interface Attribute Extraction [PR #107333]
    • GPU: Ensure Absolute Ratio During SDF-Widget Drawing [PR #107327]
    • Vulkan: Initialize Device Capabilities[PR #107302]
    • WindowManager: Context Creation [PR #107301]
    • Vulkan: Construct a Vulkan 1.2 Context [PR #107300]

Week 202316

Work in progress

  • Vulkan: Initial Graphics Pipeline [PR #106224]
  • Vulkan: Attach debug utils to GPU_debug_group [[[:Template:107217]]]

Blender 3.5.1

  • Fix #106704: Resolve flashing Metal viewport [PR #107215]
  • ImageEngine: Improve Performance and Quality [PR #107213]

Week 202315

Work landed in main

  • GPU: Fix Crash Sampling in Texture Paint Mode [PR #106791]
  • GPU: Use Same Type in Comparisons. [PR #106789]
  • ImageEngine: Improve Performance and Quality [PR #106803]
  • Fix #106672: MacOS/OpenGL doesn't draw anything Eevee related [PR #106887]
  • Vulkan: Fix Compilation Issue on Windows [PR #106932]
  • GPU: Add Texture Usage Parameter to GPUOffscreen [PR #106899]

Work in progress

Week 202314

  • CMake: Disable Options Depending on OpenEXR Dependecies [PR #106209]
  • Vulkan: Fix Compilation Error on Windows Platforms [PR #106539]
  • GPU: Use --debug-gpu-renderdoc For Renderdoc Integration [PR #106541]
  • Vulkan: Reduce Macro Unrolling In GLSL [PR #106538]
  • Vulkan: Enable Step-by-Step Debugging in Renderdoc [PR #106546]
  • Fix 106278: HD5500 Crashes When Switching to Eevee [PR #106535]

Week 202313

  • Vulkan: Clearing Framebuffer + Scissors [PR #106044]
  • Fix: Compiling Shader Builder [PR #106180]
  • CMake: Disable Options Depending on OpenEXR Dependecies [PR #106209]
  • Image Editor: Remove drawing artifacts [PR #106173]

Week 202312

Blender 3.5

  • Preparation Blender release 3.5
  • Cleanup: Remove references to Blender 3.7. [PR #106003]
  • Python: Limit BGL deprecation messages. [PR #106018]
  • Fix: Targa with Palette Shows Grayscale in Viewport [PR #106047]


Week 202311


  • Texture support for Vulkan: Still in development. In Vulkan the application is responsible for data conversions. As Blender is a content creation suite we have to handle much more variety of data conversions than other typical Vulkan applications. [PR #105762]
  • Report out workshops of last week [2]

  • Vulkan: Clearing Storage Buffers [PR #105487]
  • Vulkan: Add initial VkPixelBuffer [PR #105741]
  • Fix 105271: Luminance Matte not Working on NVIDIA [PR #105735]

Blender 3.5 release

  • Python: Unable to use gpu.state.scissor_test_set [PR #105850]
  • Write release notes

Week 202310


  • Planning meetings
  • Fix 194534: Image editor doesn't refresh after render.render [PR #105480]
  • Cleanup: Use CPP Wrapper to Clear SSBO in Eevee-next. [PR #105528]
  • Eevee-next: Use compute shader to clear clipmaps [PR #105560]
  • GPU: Replace old shader tests with shader builder [PR #105592]
  • GPU: Refactor API for Clearing Storage Buffers [PR #105521]
  • Vulkan: Push constants [PR #104880]
  • Vulkan: Fix Shader Compilation Issues. [PR #105562]
  • Vulkan: Automap Buffers [PR #105588]
  • Vulkan: Warn Developer When Layer Not Found [PR #105599]

Sculpt, Paint & Texture

  • Texture Painting: Fix Seam Bleeding of Non-Manifold Sections of Mesh [PR #105336]

Video Sequencer

  • Sequencer: Use Same Sampling As Rendering [PR #105612]

Week 202309


  • Vulkan: Calculate Correct Host and Device Memory Size. [PR #105244]


  • Compositor: Compositor Output should Follow Active Node. [PR #105235]

Week 202308


  • Vulkan: Push constants [#104880]
    • Test cases
    • Use Uniform buffers
    • Push constants
  • Vulkan: Refactor descriptor sets to be part of the shader interface.
  • Vulkan: Query limits of physical device. [PR #105125]
  • Vulkan: Add resolving of builtins to shader interface. [PR #105128]
  • Vulkan: Initial Uniform buffers support [PR #105129]
  • OpenGL: Fix issue resolving builtin uniforms
  • Vulkan: Resource Submission Tracking [PR #105183]

  • Add gpu.state.scissor_set/gpu.state.scissor_reset [#104911]
  • Fix crash grease pencil on Metal.

Sculpt, Paint & Texture

  • Texture: turn off clamping for new created data-blocks [#104747]

Week 202307

Week 202306

Vulkan Back-end

Week 202305

Vulkan Back-end

  • Migrated compute test cases to use GPUShaderCreateInfo [d4d4efd3d3]
  • Only add test infos and GLSL sources, when WITH_GTEST is enabled during build. [ce13d0d326]
  • Fixed several compilation errors and investigated why test cases where failing.
  • Found and fixed minor bug in Vulkan Memory Allocator [3]. VMA is a widely used open source memory manager for Vulkan. Issue is minor as it the bug happened when mis-using API.
  • Vulkan: Use guardedalloc for driver memory operations. [D17184]

Week 202304

Texture painting

  • Change approach for manifold meshes as it currently has to many artifacts and limitations. Idea is to replace the vertex based extension with an edge based extension. By doing that we can keep closer to the actual polygons on the mesh. [21eff2c0ac, #104005]
  • Review Support Automasking For Texture Paint [D15298]


  • Add subsampling filtermode to sequencer transform options. Improves quality when using scaled down strips.

Week 202303


This week I will be working mostly on making sure that the Metal backend is production ready.

  • Any add-ons that use OpenGL calls directly should not crash Blender. [D16996]
  • When using add-ons that use OpenGL should be reported to the user. [D16996]
  • Some crashes when using gpu module. [ff814ec5f6].
  • Attribute list in shader interface isn't updated when using Metal [17042].
  • Review: Fix T103433: Ensure Metal memory allocator is safe for multi-threaded allocation. Resolves crash when baking indirect lighting. [D17018]

Texture painting

  • Fix edge bleeding of non-manifold parts of meshes [D16963]
    • Fix artifacts when mixing multiple source pixels. Issue was that the second source was not found, due to incorrect search radius.
    • Some performance optimizations added threading, solved outstanding todos.
  • Add print_debug for generated uv islands. [884e14ac93]

Week 202302


  • Crash when using Limit textures. [#103075]
  • Update MacOS minimum requirement to 10.15 for Blender 3.5 [D16953]
    • macOS: Remove user notifications [D16955]
    • macOS: Silence OpenGL deprecation warnings [387fc9b40b]
    • macOS: Replace PboardTypes with PasteboardTypes. [eeff49a3b1]

Texture painting

  • 3D Texturing: Fix seam bleeding non-manifold meshes [#101739]
  • 3D Texturing: Replace pointers with indexes in pbvh_uv_islands [D16752]

Patch Review

  • Fix uninitialized UVs when painting in sculpt mode [D16981]

Week 202301


  • Eevee: Mark Properties on Samples Panel Animatable [D16827]

Texture painting

  • Fix seam bleeding for non-manifold edges.
  • 3D Texturing: Replace pointers with indexes in pbvh_uv_islands [D16752]

Code review

  • Fix empty asset index files after bug in asset loading [D16678]


  • Meeting about personal development with consultant.