diff --git a/README.md b/README.md
index 139e1a1..b5655bf 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,4 @@
 # ospray
 
+An Open, Scalable, Portable, Ray Tracing Based Rendering Engine for High-Fidelity Visualization.
+
diff --git a/ospray.spec b/ospray.spec
new file mode 100644
index 0000000..ef642a8
--- /dev/null
+++ b/ospray.spec
@@ -0,0 +1,118 @@
+Name:          ospray
+Version:       3.1.0
+Release:       2mamba
+Summary:       An Open, Scalable, Portable, Ray Tracing Based Rendering Engine for High-Fidelity Visualization
+Group:         System/Libraries
+Vendor:        openmamba
+Distribution:  openmamba
+Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
+URL:           https://www.ospray.org/
+Source:        https://github.com/RenderKit/ospray.git/v%{version}/ospray-%{version}.tar.bz2
+License:       Apache License 2.0
+## AUTOBUILDREQ-BEGIN
+BuildRequires: glibc-devel
+BuildRequires: libbenchmark-devel
+BuildRequires: libembree-devel
+BuildRequires: libgcc
+BuildRequires: libispc-devel
+BuildRequires: libmpi-devel
+BuildRequires: liboidn-devel
+BuildRequires: libopenvkl-devel
+BuildRequires: librkcommon-devel
+BuildRequires: libsnappy-devel
+BuildRequires: libstdc++6-devel
+BuildRequires: libtbb-devel
+## AUTOBUILDREQ-END
+BuildRequires: cmake
+Requires:      lib%{name} = %{?epoch:%epoch:}%{version}-%{release}
+
+%description
+An Open, Scalable, Portable, Ray Tracing Based Rendering Engine for High-Fidelity Visualization.
+
+%package -n lib%{name}
+Group:         System/Libraries
+Summary:       Shared libraries for %{name}
+
+%description -n lib%{name}
+This package contains shared libraries for %{name}.
+
+%package -n lib%{name}-devel
+Group:         Development/Libraries
+Summary:       Development files for %{name}
+Requires:      lib%{name} = %{?epoch:%epoch:}%{version}-%{release}
+
+%description -n lib%{name}-devel
+This package contains libraries and header files for developing applications that use %{name}.
+
+%debug_package
+
+%prep
+%setup -q
+
+%build
+%cmake \
+    -DOSPRAY_BUILD_ISA=ALL \
+    -DOSPRAY_ENABLE_APPS_EXAMPLES=OFF \
+    -DOSPRAY_ENABLE_APPS_TUTORIALS=OFF \
+    -DOSPRAY_ENABLE_MODULES=ON \
+    -DOSPRAY_MODULE_DENOISER=ON \
+    -DOSPRAY_MODULE_MPI=ON
+
+%cmake_build
+
+%install
+[ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
+%cmake_install
+
+rm -f %{buildroot}%{_bindir}/{ospTestSuite,ospMPIDistribTestSuite}
+
+%clean
+[ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
+
+%post -n lib%{name} -p /sbin/ldconfig
+%postun -n lib%{name} -p /sbin/ldconfig
+
+%files
+%defattr(-,root,root)
+%{_bindir}/ospBenchmark
+%{_bindir}/ospray_mpi_worker
+%{_bindir}/ospConvertRawToAMR
+
+%files -n lib%{name}
+%defattr(-,root,root)
+%{_libdir}/libospray.so.*
+%{_libdir}/libospray_module_cpu.so.*
+%{_libdir}/libospray_testing.so.*
+%{_libdir}/libospray_module_denoiser.so.*
+%{_libdir}/libospray_module_mpi_distributed_cpu.so.*
+%{_libdir}/libospray_module_mpi_offload.so.*
+%{_libdir}/libospray_mpi_common.so.*
+%doc LICENSE.txt
+
+%files -n lib%{name}-devel
+%defattr(-,root,root)
+%dir %{_includedir}/ospray
+%{_includedir}/ospray/OSPEnums.h
+%dir %{_includedir}/ospray/SDK
+%{_includedir}/ospray/SDK/*
+%{_includedir}/ospray/ospray.h
+%{_includedir}/ospray/ospray_cpp.h
+%dir %{_includedir}/ospray/ospray_cpp
+%{_includedir}/ospray/ospray_cpp/*
+%dir %{_includedir}/ospray/ospray_testing
+%{_includedir}/ospray/ospray_testing/*
+%{_includedir}/ospray/ospray_util.h
+%{_includedir}/ospray/version.h
+%{_libdir}/libospray.so
+%dir %{_libdir}/cmake/ospray-%{version}
+%{_libdir}/cmake/ospray-%{version}/*.cmake
+%dir %{_docdir}/OSPRay
+%{_docdir}/OSPRay/*
+%doc README.md
+
+%changelog
+* Mon May 06 2024 Silvan Calarco <silvan.calarco@mambasoft.it> 3.1.0-2mamba
+- rebuilt with more build options
+
+* Sat May 04 2024 Silvan Calarco <silvan.calarco@mambasoft.it> 3.1.0-1mamba
+- package created using the webbuild interface