LuxCoreRender · howetuft · Feb 13, 2026 · Nov 8, 2025 · Nov 8, 2025 · Feb 10, 2026
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
@@ -214,6 +214,7 @@ jobs:
             export CONAN_LOG_LEVEL=${{ env.CONAN_LOG_LEVEL }}
             export LUXDEPS_VERSION=${{ env.LUXDEPS_VERSION }}
             export CMAKE_POLICY_VERSION_MINIMUM=3.5
+            export CI=1
 
             # Set Python
             manylinux-interpreters ensure cp313-cp313

diff --git a/.gitignore b/.gitignore
@@ -12,6 +12,20 @@ __pycache__/
 # conan-cache content
 conan-cache/*
 
+# Conan cluttering files
+conanbuild.sh
+conanbuildenv-release-x86_64.sh
+conanrun.sh
+conanrunenv-release-x86_64.sh
+deactivate_conanbuild.sh
+deactivate_conanbuildenv-release-x86_64.sh
+deactivate_conanrun.sh
+
+# Build outputs
+conan-center-index
+graph.json
+list.json
+
 # Distribution / packaging
 .Python
 build/

diff --git a/TODO.txt b/TODO.txt
@@ -1,7 +1,7 @@
 Remove all test building (there are still packages that build tests...)
-Post PR to modify openimageio (fmt as private dep in CMake)
-Remove Python requirements (there are packages that require Python, should not exist)
 OIIO: don't build executables (oiiotools)
 Address warnings
 Reduce embedded deps
 Include licenses
+OIDN: add gpu plugins
+Doxygen: remove (should be installed by developer)
diff --git a/conan-local-recipes/recipes/imguifiledialog/all/conandata.yml b/conan-local-recipes/recipes/imguifiledialog/all/conandata.yml
@@ -2,3 +2,6 @@ sources:
   "0.6.7":
     url: "https://github.com/aiekick/ImGuiFileDialog/archive/refs/tags/v0.6.7.zip"
     sha256: "939fa922162a490353f17b4bc15e59110fc9ea81c123acc29c6e5f3c8f1bbc7c"
+  "0.6.8":
+    url: "https://github.com/aiekick/ImGuiFileDialog/archive/refs/tags/v0.6.8.zip"
+    sha256: "02517f9184db4301cbbe8cb1d661a5b5b942cfb95f6e3f176535e1a2d2360dc5"
diff --git a/conan-local-recipes/recipes/imguifiledialog/all/conanfile.py b/conan-local-recipes/recipes/imguifiledialog/all/conanfile.py
@@ -27,7 +27,7 @@ class ImguiFileDialogConan(ConanFile):
         "fPIC": True,
         "use_std_filesystem": True,
     }
-    requires = "imgui/1.92.4"
+    requires = "imgui/[~1.92]"
 
 
     def config_options(self):

diff --git a/conan-local-recipes/recipes/imguifiledialog/config.yml b/conan-local-recipes/recipes/imguifiledialog/config.yml
@@ -1,3 +1,5 @@
 versions:
   "0.6.7":
     folder: all
+  "0.6.8":
+    folder: all
diff --git a/conan-local-recipes/recipes/nvrtc/binary/conandata.yml b/conan-local-recipes/recipes/nvrtc/binary/conandata.yml
@@ -8,6 +8,7 @@ sources:
       x86_64:
         url: "https://developer.download.nvidia.com/compute/cuda/redist/cuda_nvrtc/windows-x86_64/cuda_nvrtc-windows-x86_64-12.8.93-archive.zip"
         sha256: "a63302a077f0248a743a1a7caa7dbd80d0fac56c6cfa9c41fa05fac9b7e5eda5"
+
   "13.0.88":
     Linux:
       x86_64:
@@ -17,3 +18,13 @@ sources:
       x86_64:
         url: "https://developer.download.nvidia.com/compute/cuda/redist/cuda_nvrtc/windows-x86_64/cuda_nvrtc-windows-x86_64-13.0.88-archive.zip"
         sha256: "8c50a52467826167e0dbe99936140c52d62272bfc5849fe2d6587d050c8c5d29"
+
+  "13.1.115":
+    Linux:
+      x86_64:
+        url: "https://developer.download.nvidia.com/compute/cuda/redist/cuda_nvrtc/linux-x86_64/cuda_nvrtc-linux-x86_64-13.1.115-archive.tar.xz"
+        sha256: "86077f16674ccea3e621ade9678887a37aca8f7500091aee4cabb1915e0c527b"
+    Windows:
+      x86_64:
+        url: "https://developer.download.nvidia.com/compute/cuda/redist/cuda_nvrtc/windows-x86_64/cuda_nvrtc-windows-x86_64-13.1.115-archive.zip"
+        sha256: "4ddd5a1e34fd62bb41e78c0725edfbf5609f4ecedd7fe118eddf2148b097fc91"
diff --git a/conan-local-recipes/recipes/nvrtc/config.yml b/conan-local-recipes/recipes/nvrtc/config.yml
@@ -3,3 +3,5 @@ versions:
     folder: "binary"
   "13.0.88":
     folder: "binary"
+  "13.1.115":
+    folder: "binary"
diff --git a/conan-local-recipes/recipes/oidn/all/conanfile.py b/conan-local-recipes/recipes/oidn/all/conanfile.py
@@ -11,7 +11,7 @@
 from conan.tools.scm import Git
 
 # Gather here the various dependency versions, for convenience
-TBB_VERSION = "2022.2.0"
+TBB_VERSION = "2022.3.0"
 
 class OidnConan(ConanFile):
     name = "oidn"
@@ -58,8 +58,14 @@ def source(self):
         print(res)
         git.clone(
             "https://github.com/OpenImageDenoise/oidn.git",
-            args=["--recursive", f"--branch v{self.version}"],
-            target=Path(self.source_folder) / "oidn"
+            args=[
+                "--recursive",
+                "--single-branch",
+                "--depth 1",
+                f"--branch v{self.version}",
+            ],
+            target=Path(self.source_folder) / "oidn",
+            hide_url=True,
         )
 
 

diff --git a/conan-local-recipes/recipes/oidn/config.yml b/conan-local-recipes/recipes/oidn/config.yml
@@ -1,3 +1,5 @@
 versions:
   "2.3.3":
     folder: "all"
+  "2.4.1":
+    folder: "all"
diff --git a/conan-profiles/conan-profile-Linux-X64 b/conan-profiles/conan-profile-Linux-X64
@@ -7,15 +7,21 @@ compiler=gcc
 compiler.version={{ os.getenv("GCC_VERSION") }}
 compiler.cppstd={{ os.getenv("CXX_VERSION") }}
 compiler.libcxx=libstdc++11
+compiler.cstd=gnu17
 
 [options]
 openvdb/*:simd=AVX
-gtk/system:version=3
+minizip-ng/*:with_libcomp=False
+#gtk/system:version=3
 
 
 [conf]
-tools.build:cflags=["-march=x86-64-v3"]
-tools.build:cxxflags=["-march=x86-64-v3"]
+tools.build:cflags+=["-march=x86-64-v3", "-Wno-error"]
+tools.build:cxxflags+=["-march=x86-64-v3", "-Wno-error"]
+tools.build:cxxflags+=["-std=c++{{ os.getenv("CXX_VERSION") }}"]
+tools.build:cflags+=["-std=gnu17"]
+tools.gnu:extra_configure_args+=["--disable-silent-rules"]
+tools.cmake.cmaketoolchain:user_toolchain+={{os.getenv("LUX_PROFILE_DIR", profile_dir)}}/linux-vars-X64.cmake
 
 {% if 'SANITIZE' in os.environ -%}
 
@@ -33,3 +39,5 @@ openvdb/*:tools.cmake.cmaketoolchain:extra_variables={ 'USE_CCACHE':'OFF' }
 {% endif %}
 
 onetbb/*:tools.cmake.cmaketoolchain:extra_variables={ 'CMAKE_VERBOSE_MAKEFILE': 'ON' }
+
+# vim: ft=conf
diff --git a/conan-profiles/conan-profile-Windows-X64 b/conan-profiles/conan-profile-Windows-X64
@@ -13,7 +13,7 @@ xapian-core/*:compiler.cppstd=14
 [conf]
 tools.build:cxxflags=["/openmp", "/MP", "/DEBUG:NONE", "/O2", "/arch:AVX2"]
 tools.build:cflags=["/openmp", "/MP", "/DEBUG:NONE", "/O2", "/arch:AVX2"]
-embree/*:tools.cmake.cmaketoolchain:user_toolchain+={{profile_dir}}/windows-vars-X64.cmake
+embree/*:tools.cmake.cmaketoolchain:user_toolchain+={{os.getenv("LUX_PROFILE_DIR", profile_dir)}}/windows-vars-X64.cmake
 embree/*:tools.build:cxxflags=["/DEBUG:NONE", "/O2" ]
 embree/*:tools.build:cflags=["/DEBUG:NONE", "/O2" ]
 openimageio/*:tools.build:cxxflags+=["/utf-8" ]
@@ -27,3 +27,5 @@ xapian-core/*:tools.build:cflags=!
 [options]
 openvdb/*:simd=AVX
 embree/*:shared=True
+
+# vim: ft=conf
diff --git a/conan-profiles/conan-profile-common b/conan-profiles/conan-profile-common
@@ -18,6 +18,9 @@ doxygen/*:build_type=Release
 tools.system.package_manager:mode=install
 tools.deployer:symlinks=True
 tools.build:skip_test=True
+openimageio/*:tools.cmake.cmaketoolchain:extra_variables={ 'OIIO_BUILD_TOOLS':'OFF' }
+opencolorio/*:tools.cmake.cmaketoolchain:extra_variables={ 'OCIO_BUILD_APPS':'OFF' }
+
 
 [platform_tool_requires]
 cmake/*
@@ -30,6 +33,8 @@ spdlog/*:header_only=True
 spdlog/*:use_std_fmt=True
 nvrtc/*:shared=True
 libtiff/*:jpeg=libjpeg-turbo
+# For onetbb:
+hwloc/*:shared=True
 
 openimageio/*:with_freetype=False
 openimageio/*:with_hdf5=False

diff --git a/conan-profiles/conan-profile-macOS-ARM64 b/conan-profiles/conan-profile-macOS-ARM64
@@ -27,7 +27,7 @@ VERBOSE=1
 
 [conf]
 &:tools.build:cxxflags+=["-O3"]
-tools.cmake.cmaketoolchain:user_toolchain+={{profile_dir}}/macos-vars-ARM64.cmake
+tools.cmake.cmaketoolchain:user_toolchain+={{os.getenv("LUX_PROFILE_DIR", profile_dir)}}/macos-vars-ARM64.cmake
 
 openvdb/*:tools.build:cxxflags+=["-Wno-error", "-Wno-missing-template-arg-list-after-template-kw"]
 

diff --git a/conan-profiles/conan-profile-macOS-X64 b/conan-profiles/conan-profile-macOS-X64
@@ -23,7 +23,7 @@ MACOSX_DEPLOYMENT_TARGET=11.0
 
 [conf]
 &:tools.build:cxxflags+=["-ftree-vectorize", "-march=x86-64-v3", "-O3"]
-tools.cmake.cmaketoolchain:user_toolchain+={{profile_dir}}/macos-vars-X64.cmake
+tools.cmake.cmaketoolchain:user_toolchain+={{os.getenv("LUX_PROFILE_DIR", profile_dir)}}/macos-vars-X64.cmake
 openvdb/*:tools.build:cxxflags+=["-Wno-error", "-Wno-missing-template-arg-list-after-template-kw"]
 
 # vim: ft=conf
diff --git a/conan-profiles/linux-vars-X64.cmake b/conan-profiles/linux-vars-X64.cmake
@@ -0,0 +1,4 @@
+# This file injects CMake variables in Linux build
+MESSAGE(STATUS "Injecting Conan CMake variables")
+
+# Place here your supplementary code to be injected in Linux build
diff --git a/conanfile.py b/conanfile.py
@@ -12,31 +12,31 @@
 # Gather here the various dependency versions, for convenience
 # (in alphabetic order)
 BOOST_VERSION = "1.88.0"
-DOXYGEN_VERSION = "1.14.0"
-EIGEN_VERSION = "5.0.0"
-EMBREE_VERSION = "4.3.3"
-FMT_VERSION = "12.0.0"
+DOXYGEN_VERSION = "1.16.1"
+EIGEN_VERSION = "5.0.1"
+EMBREE_VERSION = "4.4.0"
+FMT_VERSION = "12.1.0"
 GLFW_VERSION = "3.4"
 IMATH_VERSION = "3.2.1"
-IMGUI_VERSION = "1.92.4"
+IMGUI_VERSION = "1.92.5"
 IMGUIFILEDIALOG_VERSION = "0.6.7"
-JSON_VERSION = "3.12.0"
-LIBDEFLATE_VERSION = "1.23"
+LIBDEFLATE_VERSION = "1.25"
+LIBTIFF_VERSION = "4.7.1"
 MINIZIP_VERSION = "4.0.7"
-NINJA_VERSION = "1.13.1"
-NVRTC_VERSION = "13.0.88"
-OCIO_VERSION = "2.5.0"
-OIIO_VERSION = "3.1.6.2"
+NINJA_VERSION = "1.13.2"
+NLOHMANN_JSON_VERSION = "3.12.0"
+NVRTC_VERSION = "13.1.115"
+OCIO_VERSION = "2.5.1"
+OIIO_VERSION = "3.1.10.0"
 OIDN_VERSION = "2.3.3"
-OPENEXR_VERSION = "3.3.5"
-OPENJPH_VERSION = "0.24.2"
-OPENSUBDIV_VERSION = "3.6.0"
-OPENVDB_VERSION = "11.0.0"
+ONETBB_VERSION = "2022.3.0"
+OPENEXR_VERSION = "3.4.4"
+OPENJPH_VERSION = "0.25.3"
+OPENSUBDIV_VERSION = "3.7.0"
+OPENVDB_VERSION = "12.1.1"
 PYBIND11_VERSION = "3.0.1"
-ROBINHOOD_VERSION = "3.11.5"
-SPDLOG_VERSION = "1.16.0"
-TBB_VERSION = "2022.2.0"
-TIFF_VERSION = "4.7.1"
+ROBIN_HOOD_HASHING_VERSION = "3.11.5"
+SPDLOG_VERSION = "1.17.0"
 ZSTD_VERSION = "1.5.7"
 
 
@@ -63,7 +63,7 @@ class LuxCoreDeps(ConanFile):
 
     def requirements(self):
         self.requires(
-            f"onetbb/{TBB_VERSION}",
+            f"onetbb/{ONETBB_VERSION}",
             override=True,
             libs=True,
             transitive_libs=True,
@@ -81,7 +81,7 @@ def requirements(self):
             transitive_libs=True,
         )
         self.requires(
-            f"libtiff/{TIFF_VERSION}",
+            f"libtiff/{LIBTIFF_VERSION}",
             override=True,
         )
         self.requires(
@@ -109,10 +109,14 @@ def requirements(self):
 
         # Header only deps - make them transitive
         self.requires(
-            f"robin-hood-hashing/{ROBINHOOD_VERSION}", transitive_headers=True
+            f"robin-hood-hashing/{ROBIN_HOOD_HASHING_VERSION}",
+            transitive_headers=True
         )
         self.requires(f"eigen/{EIGEN_VERSION}", transitive_headers=True)
-        self.requires(f"nlohmann_json/{JSON_VERSION}", transitive_headers=True)
+        self.requires(
+            f"nlohmann_json/{NLOHMANN_JSON_VERSION}",
+            transitive_headers=True
+        )
         self.requires(f"pybind11/{PYBIND11_VERSION}", transitive_headers=True)
         self.requires(f"spdlog/{SPDLOG_VERSION}", transitive_headers=True)
         self.requires(

diff --git a/run-conan.sh b/run-conan.sh
@@ -15,6 +15,14 @@ test -n "$RUNNER_ARCH" || die "RUNNER_ARCH not set"
 
 CONAN_PROFILE=conan-profile-${RUNNER_OS}-${RUNNER_ARCH}
 
+# The following variable contains the commit where Conan Center Index will be
+# checked out. This is utterly important for maintenability that Conan Center
+# Index be pinned at a given commit. Otherwise, spurious unwanted updates will
+# gradually happen and finally break the build.
+# To the contrary, you may need to upgrade this commit when you want to upgrade
+# a given dependency.
+CONAN_COMMIT=d60a35f00bf85fd1abf2df0877878f54404e3df0
+
 # Debug utility (install a specific package)
 function debug() {
   conan install \
@@ -28,17 +36,24 @@ function debug() {
 # Script starts here
 
 # 0. Initialize: set globals and install conan and ninja
-set -euxo pipefail
+set -exo pipefail
 
-if [[ "$RUNNER_OS" == "Linux" ]]; then
+if [[ "$RUNNER_OS" == "Linux" && -n "$CI" ]]; then
+  echo "Linux - CI"
   cache_dir=/conan-cache
+elif [[ "$RUNNER_OS" == "Linux" && -z "$CI" ]]; then
+  # Linux - Plain local build
+  echo "Linux - Plain local build"
+  cache_dir=/tmp/conan-cache
 else
+  # Others
+  echo "MacOS or Windows - CI build"
   cache_dir=$WORKSPACE/conan-cache
 fi
 
 echo "::group::CIBW_BEFORE_BUILD: pip"
-pip install conan
-pip install ninja
+pipx install conan
+pipx install ninja
 echo "::endgroup::"
 
 # 1. Clone conancenter at a specific commit and add this cloned repo as a
@@ -50,22 +65,25 @@ echo "::endgroup::"
 #   updates
 # https://docs.conan.io/2/devops/devops_local_recipes_index.html
 echo "::group::CIBW_BEFORE_BUILD: local recipes index repository"
-git clone https://github.com/conan-io/conan-center-index
-cd conan-center-index
-git reset --hard 73bae27b468ae37f5bacd4991d1113aefcf23b2b
-git clean -df  # cleans any untracked files/folders
-cd ..
-conan remote add mycenter ./conan-center-index
+# Delete conan-center-index if exists
+if [ ! -d "conan-center-index" ]; then
+  git clone https://github.com/conan-io/conan-center-index
+  cd conan-center-index
+  git reset --hard ${CONAN_COMMIT}
+  git clean -df  # cleans any untracked files/folders
+  cd ..
+fi
+conan remote add mycenter ./conan-center-index --force
 
 # 2. Add local recipe repository (as a remote)
-conan remote add mylocal ./conan-local-recipes
+conan remote add mylocal ./conan-local-recipes --force
 conan list -r mylocal
 echo "::endgroup::"
 
 if [[ "$RUNNER_OS" == "Linux" ]]; then
   # ispc
   echo "::group::CIBW_BEFORE_BUILD: ispc"
-  source /opt/intel/oneapi/ispc/latest/env/vars.sh
+  source /opt/intel/oneapi/setvars.sh
   echo "::endgroup::"
 fi
 

diff --git a/utils/clean-conan-files.sh b/utils/clean-conan-files.sh
@@ -0,0 +1,24 @@
+#!/bin/bash
+echo "Cleaning Conan intermediary files"
+
+
+files=(
+  "conanbuildenv-release-x86_64.sh" \
+  "conanbuild.sh" \
+  "conanrunenv-release-x86_64.sh" \
+  "conanrun.sh" \
+  "deactivate_conanbuildenv-release-x86_64.sh" \
+  "deactivate_conanbuild.sh" \
+  "deactivate_conanrun.sh" \
+  "graph.json" \
+  "list.json" \
+)
+
+for file in "${files[@]}"; do
+  echo "- Removing ${file}"
+  rm -f "$file"
+done
+
+
+echo "- Removing conan-center-index (folder)"
+rm -rf conan-center-index
diff --git a/utils/debug.sh → utils/local-CI-build.sh b/utils/debug.sh → utils/local-CI-build.sh