OpenMoonRay

Issues somebody may already be working on are listed last. List everything by date

• Light tree: orientation cone of a reverse-sided light points the wrong way

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  Difficulty 2/5 1-3 hours Newbie friendliness 76/100

  OpenMoonRay/openmoonray#332 · Opened Nov 6, 2026

• RectLight: textured light under a non-uniform scale samples and looks up the texture with the unscaled size

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  Difficulty 3/5 1-2 days Newbie friendliness 57/100

  OpenMoonRay/openmoonray#331 · Opened Nov 6, 2026

• DiskLight / RectLight with spread < 1: intersect() reports a different pdf than sample()

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  Difficulty 3/5 1-2 days Newbie friendliness 68/100

  OpenMoonRay/openmoonray#330 · Opened Nov 6, 2026

• Rough transmission with dispersion is too dark under direct light (pdf differs between sample() and eval())

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  Difficulty 4/5 3-5 days Newbie friendliness 52/100

  OpenMoonRay/openmoonray#329 · Opened Nov 6, 2026

• scene_rdl2 Python bindings are untested

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  Difficulty 4/5 3-5 days Newbie friendliness 42/100

  OpenMoonRay/openmoonray#328 · Opened Nov 6, 2026

• Move Existing Metal 3.1 code over to Metal 4 for Mac OS 26+

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  Difficulty 4/5 3-5 days Newbie friendliness 35/100

  OpenMoonRay/openmoonray#321 · Opened Oct 16, 2026

• Remove SceneObject::getBinding() functions which don't fetch output for the binding

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  Difficulty 2/5 1-3 hours Newbie friendliness 64/100

  OpenMoonRay/openmoonray#320 · Opened Oct 6, 2026

• Multiple output shaders

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  Difficulty 5/5 Over a week Newbie friendliness 35/100

  OpenMoonRay/openmoonray#319 · Opened Oct 2, 2026

• BSDF and Surfaceshader Scene Objects

  May be free again @dmccann-dwa claimed this 35 days ago, and no pull request is open. Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  OpenMoonRay/openmoonray#318 · 1 assignee · Opened Oct 2, 2026

• Airy Thin-film Iridescence Fresnel

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  Difficulty 5/5 Over a week Newbie friendliness 42/100

  OpenMoonRay/openmoonray#317 · Opened Oct 2, 2026

• Conty-Kulla Sheen BSDF

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  Difficulty 5/5 Over a week Newbie friendliness 34/100

  OpenMoonRay/openmoonray#315 · Opened Oct 2, 2026

• Zeltner Sheen BSDF

  May be free again @redartengineer claimed this 29 days ago, and no pull request is open. Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  OpenMoonRay/openmoonray#314 · 2 comments · 1 assignee · Opened Oct 2, 2026

• OpenPBR compatibility

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  Difficulty 5/5 Over a week Newbie friendliness 25/100

  OpenMoonRay/openmoonray#313 · Opened Oct 2, 2026

• Uniform shaders

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  Difficulty 5/5 Over a week Newbie friendliness 25/100

  OpenMoonRay/openmoonray#312 · Opened Oct 2, 2026

• EDF Support

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  Difficulty 5/5 Over a week Newbie friendliness 28/100

  OpenMoonRay/openmoonray#311 · Opened Oct 2, 2026

• VDF Support

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  Difficulty 5/5 Over a week Newbie friendliness 20/100

  OpenMoonRay/openmoonray#310 · Opened Oct 2, 2026

• usdrecord keeps waiting after its Arras render worker exits

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  Difficulty 4/5 3-5 days Newbie friendliness 53/100

  OpenMoonRay/openmoonray#309 · Opened Oct 2, 2026

• Add a "fatal" function for multi-output Map shaders

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  Difficulty 4/5 3-5 days Newbie friendliness 43/100

  OpenMoonRay/openmoonray#307 · Opened Sep 24, 2026

• Create python wrappers for new Output management functions for SceneObject and SceneClass

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  Difficulty 3/5 1-2 days Newbie friendliness 62/100

  OpenMoonRay/openmoonray#306 · Opened Sep 23, 2026

• Add python wrappers to SceneClass and SceneObject shader output management functions in scene_rdl2 python module in scene_rdl2 repo

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  Difficulty 3/5 1-2 days Newbie friendliness 55/100

  OpenMoonRay/openmoonray#305 · Opened Sep 23, 2026

• update Map object to include a sample function for multi-output map shaders

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  Difficulty 4/5 3-5 days Newbie friendliness 47/100

  OpenMoonRay/openmoonray#304 · Opened Sep 23, 2026

• Update eval functions to deal with multi-output shaders

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  Difficulty 4/5 3-5 days Newbie friendliness 48/100

  OpenMoonRay/openmoonray#303 · Opened Sep 23, 2026

• Update hdMoonray to bind to named outputs

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  Difficulty 3/5 1-2 days Newbie friendliness 55/100

  OpenMoonRay/openmoonray#302 · Opened Sep 23, 2026

• update ispc_dso_generate to handle multi-output shaders

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  Difficulty 4/5 1-2 days Newbie friendliness 52/100

  OpenMoonRay/openmoonray#301 · 1 comment · Opened Sep 23, 2026

• update reading and writing rdl files to allow binding to named outputs

  May be free again @pramsey1234 claimed this 28 days ago, and no pull request is open. Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  OpenMoonRay/openmoonray#300 · 1 comment · 1 assignee · Opened Sep 23, 2026

• Update rdl2_json_exporter to include node outputs

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  Difficulty 3/5 1-2 days Newbie friendliness 58/100

  OpenMoonRay/openmoonray#299 · 1 comment · Opened Sep 23, 2026

• Update SceneObject to allow binding to a named output

  May be free again @pramsey1234 claimed this 32 days ago, and no pull request is open. Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  OpenMoonRay/openmoonray#298 · 4 comments · 1 assignee · Opened Sep 23, 2026

• Update SceneClass to allow a list of outputs

  May be free again @pramsey1234 claimed this 42 days ago, and no pull request is open. Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  OpenMoonRay/openmoonray#297 · 6 comments · 1 assignee · Opened Sep 23, 2026

• Overview of multi-output shader work

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  Difficulty 5/5 Over a week Newbie friendliness 15/100

  OpenMoonRay/openmoonray#296 · Opened Sep 23, 2026

• Add snapshot to clipboard feature for moonray_gui_v2

  May be free again @saphalpdyl claimed this 43 days ago, and no pull request is open. Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel
  enhancement good first issue help wanted

  OpenMoonRay/openmoonray#285 · 5 comments · 1 assignee · Opened Sep 16, 2026

• moonray_gui_v2 starting window size is too small and is often positioned near the edge of the screen

  May be free again @saphalpdyl claimed this 42 days ago, and no pull request is open. Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel
  enhancement good first issue help wanted

  OpenMoonRay/openmoonray#284 · 1 comment · 1 assignee · Opened Sep 16, 2026

• Add new "unclamped" behavior to DirectionalMap

  May be free again @zychen8 claimed this 46 days ago, and no pull request is open. Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel
  enhancement good first issue help wanted

  OpenMoonRay/openmoonray#283 · 4 comments · 1 assignee · Opened Sep 16, 2026

• Several build-portability fixes already have open PRs across submodules — a roundup

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  Difficulty 4/5 3-5 days Newbie friendliness 25/100

  OpenMoonRay/openmoonray#280 · 3 comments · Opened Sep 1, 2026

• Clean up FindTBB.cmake warning during build configuration

  May be free again @SavaLione claimed this 51 days ago, and no pull request is open. Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel
  build/CI good first issue help wanted

  OpenMoonRay/openmoonray#271 · 3 comments · 1 assignee · Opened Aug 28, 2026

• Add all scene variable attributes to the render log

  May be free again @danielle-dwa claimed this 52 days ago, and no pull request is open. Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel
  enhancement good first issue help wanted

  OpenMoonRay/openmoonray#268 · 5 comments · 1 assignee · Opened Aug 25, 2026

• Improve Houdini integration and documentation

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  Difficulty 5/5 Over a week Newbie friendliness 25/100

  OpenMoonRay/openmoonray#265 · 1 comment · Opened Aug 22, 2026

• Hydra Houdini: VdbVolume Shader

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  Difficulty 4/5 1-2 days Newbie friendliness 43/100

  OpenMoonRay/openmoonray#261 · 3 comments · Opened Jul 29, 2026

• Support for newer Nvidia GPU cards (5000 series)

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  Difficulty 5/5 Over a week Newbie friendliness 20/100

  OpenMoonRay/openmoonray#255 · Opened Jun 13, 2026

• Houdini 21 (Hydra Scene Index mode): native Houdini primitive geometry does not render in hdMoonray

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  Difficulty 4/5 3-5 days Newbie friendliness 44/100

  OpenMoonRay/openmoonray#245 · 4 comments · Opened May 30, 2026

• An optimized rendering engine based on moonray/moonshine is needed in lime.

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  Difficulty 5/5 Over a week Newbie friendliness 20/100

  OpenMoonRay/openmoonray#235 · 3 comments · Opened May 17, 2026

• macOS Boost.Python build fails due to NumPy 2.x incompatibility

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  Difficulty 2/5 1-3 hours Newbie friendliness 64/100

  OpenMoonRay/openmoonray#233 · Opened May 7, 2026

• Build process in Docker breaks due to missing dependencies

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  Difficulty 3/5 1-2 days Newbie friendliness 35/100

  OpenMoonRay/openmoonray#227 · Opened Apr 5, 2026

• Textures not showing up when converting a usdc file exported from blender.

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  Difficulty 4/5 3-5 days Newbie friendliness 35/100

  OpenMoonRay/openmoonray#224 · 2 comments · Opened Mar 6, 2026

• HIPRT support?

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  Difficulty 5/5 Over a week Newbie friendliness 28/100

  OpenMoonRay/openmoonray#220 · 1 comment · Opened Feb 8, 2026

• Embree4 EMBREE_MAX_ISA failure on Rocky 10

  May be free again @FAIZ1409 claimed this 289 days ago, and no pull request is open. Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  Difficulty 3/5 1-2 days Newbie friendliness 35/100

  OpenMoonRay/openmoonray#217 · 3 comments · Opened Dec 17, 2025

• CONTRIBUTING.md links to CLAs are broken

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  Difficulty 1/5 Under an hour Newbie friendliness 20/100

  OpenMoonRay/openmoonray#213 · Opened Sep 9, 2025

• Issues with using Ninja build

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  Difficulty 3/5 1-2 days Newbie friendliness 45/100

  OpenMoonRay/openmoonray#191 · 1 comment · Opened Jun 21, 2025

• Building on Rocky 9 for Houdini 20.5.487

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  Difficulty 3/5 1-2 days Newbie friendliness 35/100

  OpenMoonRay/openmoonray#182 · 2 comments · Opened Feb 13, 2025

• Nvidia GH200 / ARM64: SIGSEGV in XPU and Vector, but not Scalar modes

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  Difficulty 5/5 Over a week Newbie friendliness 25/100

  OpenMoonRay/openmoonray#180 · 5 comments · Opened Jan 11, 2025

• Compile Windows ?

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  Difficulty 5/5 Over a week Newbie friendliness 12/100

  OpenMoonRay/openmoonray#177 · 1 comment · Opened Dec 26, 2024