diff --git a/.gitignore b/.gitignore
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+++ b/.gitignore
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+bcd-*.tar.gz
diff --git a/bcd.spec b/bcd.spec
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+%global commit0 d94c9fa77c11afe7d04670d92b3930c417e19f4b
+%global shortcommit0 %(c=%{commit0}; echo ${c:0:7})
+%global date0 20180610
+
+Name:           bcd
+Version:        1.1
+Release:        2.%{?date0}git%{?shortcommit0}%{?dist}
+Summary:        Bayesian Collaborative Denoiser for Monte-Carlo Rendering
+# BSD: main program
+# AGPLv3+: src/io/exr
+License:        BSD and AGPLv3+
+URL:            https://github.com/superboubek/bcd
+Source0:        %{url}/archive/%{commit0}/%{name}-%{shortcommit0}.tar.gz
+# Many patches are tight to upstream accepting building shared
+# and removing bundled dependencies
+# https://github.com/superboubek/bcd/issues/12
+# don't use bundled deps
+Patch0:         bcd-nodeps.patch
+# Missing includes
+# https://github.com/superboubek/bcd/pull/11
+Patch1:         bcd-gcc.patch
+# Use system eigen3
+Patch2:         bcd-eigen3.patch
+# Turn into a shared library forging SONAME (no ABI stability expected)
+Patch3:         bcd-links.patch
+# Remove cuda arch - not supported in current nvcc
+Patch4:         bcd-cuda.patch
+# Use system json
+Patch5:         bcd-json.patch
+# TODO
+# BCD calls exit
+#https://github.com/superboubek/bcd/issues/13
+
+BuildRequires:  cmake
+BuildRequires:  make
+BuildRequires:  gcc-c++
+
+BuildRequires:  OpenEXR-devel
+BuildRequires:  eigen3-devel
+BuildRequires:  json-devel
+BuildRequires:  zlib-devel
+
+
+%description
+BCD allows to denoise images rendered with Monte Carlo path tracing and
+provided in the form of their samples statistics (average, distribution
+and covariance of per-pixel color samples). BCD can run in CPU (e.g.,
+renderfarm) or GPU (e.g., desktop) mode. It can be integrated as a library
+to any Monte Carlo renderer, using the provided sample accumulator to
+interface the Monte Carlo simulation with the BCD internals, and comes
+with a graphics user interface for designing interactively the denoising
+parameters, which can be saved in JSON format and later reused in batch.
+
+BCD has been designed for easy integration and low invasiveness in the
+host renderer, in a high spp context (production rendering). There are
+at least three ways to integrate BCD in a rendering pipeline, by either:
+
+* Dumping all samples in a raw file, using the raw2bcd tool to generate
+the rendering statistics from this file and then running the BCD using
+the CLI tool.
+
+* Exporting the mandatory statistics from the rendering loop in EXR
+format and running the BCD CLI tool to obtain a denoised image.
+
+* Directly integrating the BCD library into the renderer, using the
+sample accumulator to post samples to BCD during the path tracing and
+denoising the accumulated values after rendering using the library.
+
+
+%package        cli
+Summary:        Tools for %{name}
+Requires:       %{name}%{?_isa} = %{version}-%{release}
+
+%description    cli
+The %{name}-cli package contains libraries and header files for
+developing applications that use %{name}.
+
+
+%package        devel
+Summary:        Development files for %{name}
+Requires:       %{name}%{?_isa} = %{version}-%{release}
+
+%description    devel
+The %{name}-devel package contains libraries and header files for
+developing applications that use %{name}.
+
+
+%prep
+%autosetup -p1 -n %{name}-%{commit0}
+
+
+%build
+export CXXFLAGS="%{optflags} $(pkgconf --cflags eigen3 OpenEXR) -I%{_includedir}/nlohmann"
+export LDFLAGS="%{build_ldflags} $(pkgconf --libs eigen3 OpenEXR)"
+%cmake \
+  -DBCD_BUILD_GUI=OFF \
+  %{?_with_cuda: \
+   -DCUDA_TOOLKIT_ROOT_DIR=%{_cuda_prefix} \
+   -DCUDA_USE_STATIC_CUDA_RUNTIME=OFF \
+  } \
+  %{!?_with_cuda:-DBCD_USE_CUDA=OFF}
+
+%cmake_build
+
+
+%install
+%cmake_install
+
+%if "%{_lib}" == "lib64"
+mv %{buildroot}%{_prefix}/lib \
+  %{buildroot}%{_libdir}
+%endif
+
+mkdir -p %{buildroot}%{_includedir}
+cp -pr include/* %{buildroot}%{_includedir}
+
+
+%files
+%license LICENSE.txt
+%doc README.md
+%{_libdir}/*.so.0*
+
+%files cli
+%{_bindir}/bcd-cli
+%{_bindir}/bcd-raw-converter
+
+%files devel
+%{_includedir}/bcd
+%{_libdir}/*.so
+
+
+%changelog
+* Sat Nov 07 2020 Nicolas Chauvet <kwizart@gmail.com> - 1.1-2.20180610gitd94c9fa
+- Improve patch description
+- Enforce soversion
+- Mention AGPLv3+
+
+* Wed Jul  1 2020 Nicolas Chauvet <kwizart@gmail.com> - 1.1-1.20180610gitd94c9fa
+- Initial spec file
diff --git a/sources b/sources
new file mode 100644
index 0000000..7fa6150
--- /dev/null
+++ b/sources
@@ -0,0 +1 @@
+SHA512 (bcd-d94c9fa.tar.gz) = 054d147f20701eab039535d0e237777bb3162cfd631ae3fb2c60884153b2d2dfd4e201328db8d7bdf701583480b1727276b4439754cc63db42c030d8d2fa934f