diff --git a/mingw-w64-OpenSceneGraph/0008-opencascade-7.6.0.patch b/mingw-w64-OpenSceneGraph/0008-opencascade-7.6.0.patch
new file mode 100644
index 0000000000..68c97fc454
--- /dev/null
+++ b/mingw-w64-OpenSceneGraph/0008-opencascade-7.6.0.patch
@@ -0,0 +1,23 @@
+diff -urN OpenSceneGraph-OpenSceneGraph-3.6.5/src/osgPlugins/OpenCASCADE/ReaderWriterOpenCASCADE.cpp.orig OpenSceneGraph-OpenSceneGraph-3.6.5/src/osgPlugins/OpenCASCADE/ReaderWriterOpenCASCADE.cpp
+--- OpenSceneGraph-OpenSceneGraph-3.6.5/src/osgPlugins/OpenCASCADE/ReaderWriterOpenCASCADE.cpp.orig	2020-01-31 12:03:07.000000000 +0100
++++ OpenSceneGraph-OpenSceneGraph-3.6.5/src/osgPlugins/OpenCASCADE/ReaderWriterOpenCASCADE.cpp	2022-06-15 18:01:51.140786000 +0200
+@@ -30,6 +30,7 @@
+ #include <Standard_ErrorHandler.hxx>
+ #include <Standard_CString.hxx>
+ #include <Standard_Macro.hxx>
++#include <Standard_Version.hxx>
+ 
+ #include <TopoDS.hxx>
+ #include <TopoDS_Face.hxx>
+@@ -211,7 +212,11 @@
+                 {
+                     // populate vertex list
+                     // Ref: http://www.opencascade.org/org/forum/thread_16694/?forum=3
++#if OCC_VERSION_HEX < 0x070600
+                     gp_Pnt pt = (triangulation->Nodes())(j).Transformed(transformation * location.Transformation());
++#else
++                    gp_Pnt pt = triangulation->Node(j).Transformed(transformation * location.Transformation());
++#endif
+                     vertexList->push_back(osg::Vec3(pt.X(), pt.Y(), pt.Z()));
+ 
+                     // populate color list
diff --git a/mingw-w64-OpenSceneGraph/PKGBUILD b/mingw-w64-OpenSceneGraph/PKGBUILD
index d0838ba7ea..dfcad1cc6f 100644
--- a/mingw-w64-OpenSceneGraph/PKGBUILD
+++ b/mingw-w64-OpenSceneGraph/PKGBUILD
@@ -5,13 +5,14 @@ pkgbase=mingw-w64-${_realname}
 pkgname=("${MINGW_PACKAGE_PREFIX}-${_realname}" "${MINGW_PACKAGE_PREFIX}-${_realname}-debug")
 _pkgver=3.6.5
 pkgver=${_pkgver//-/}
-pkgrel=10
+pkgrel=11
 arch=('any')
 mingw_arch=('mingw32' 'mingw64' 'ucrt64' 'clang64' 'clang32')
 url="http://www.openscenegraph.org/"
-license=("LGPL")
-makedepends=("${MINGW_PACKAGE_PREFIX}-cmake"
-             "${MINGW_PACKAGE_PREFIX}-cc"
+license=("spdx:LGPL-2.1-only WITH WxWindows-exception-3.1")
+makedepends=("${MINGW_PACKAGE_PREFIX}-cc"
+             "${MINGW_PACKAGE_PREFIX}-cmake"
+             "${MINGW_PACKAGE_PREFIX}-ninja"
              "${MINGW_PACKAGE_PREFIX}-cyrus-sasl")
 depends=("${MINGW_PACKAGE_PREFIX}-boost"
          "${MINGW_PACKAGE_PREFIX}-collada-dom-svn"
@@ -32,6 +33,7 @@ depends=("${MINGW_PACKAGE_PREFIX}-boost"
          "${MINGW_PACKAGE_PREFIX}-libvncserver"
          "${MINGW_PACKAGE_PREFIX}-libxml2"
          "${MINGW_PACKAGE_PREFIX}-lua"
+         "${MINGW_PACKAGE_PREFIX}-opencascade"
          "${MINGW_PACKAGE_PREFIX}-SDL"
          "${MINGW_PACKAGE_PREFIX}-SDL2"
          "${MINGW_PACKAGE_PREFIX}-poppler"
@@ -45,8 +47,12 @@ source=(https://github.com/openscenegraph/OpenSceneGraph/archive/${_realname}-${
         additional-gl-header.patch
         add-gstreamer-cflags.patch
         las-link-with-boost.patch
+        # https://github.com/openscenegraph/OpenSceneGraph/pull/1055
         backport-1055.patch
-        backport-977.patch)
+        # https://github.com/openscenegraph/OpenSceneGraph/pull/977
+        backport-977.patch
+        # https://github.com/openscenegraph/OpenSceneGraph/pull/1144
+        0008-opencascade-7.6.0.patch)
 sha256sums=('aea196550f02974d6d09291c5d83b51ca6a03b3767e234a8c0e21322927d1e12'
             '24f64f975e776fc018f9c65a1bcae043dded1d4174342d863f9f205b013acc13'
             '3c7469cf0741905f2c46e4632159220213532d8f194b711b0600b50ad94ab4f8'
@@ -54,20 +60,29 @@ sha256sums=('aea196550f02974d6d09291c5d83b51ca6a03b3767e234a8c0e21322927d1e12'
             'feb994964fe636e4591394a4c287d27d54cf61c8e5fc5324aebb161cafe2e3dc'
             '54457dcee1cdd1c486607640e4e0272e619f445291ec4edd04dda99e3c4eb4f7'
             '108bc2ab77959b007dbe5a28be4d06bce364959c89d142a02870f6de466af9bb'
-            'a70765ce5e4493e9047b33ab89f322a5d6145649d700e5f6a89e84db7880ecb7')
+            'a70765ce5e4493e9047b33ab89f322a5d6145649d700e5f6a89e84db7880ecb7'
+            '0413b3244e91ca7664bd6d6c2a646fae6adb126b181d484eea41a4b7346d1078')
+
+apply_patch_with_msg() {
+  for _patch in "$@"
+  do
+    msg2 "Applying $_patch"
+    patch -Np1 -i "${srcdir}/$_patch"
+  done
+}
 
 prepare() {
   cd "${srcdir}/${_realname}-${_realname}-${_pkgver}"
-  patch -p1 -i ${srcdir}/find-collada.patch
-  patch -p1 -i ${srcdir}/find-freetype.patch
-  patch -p1 -i ${srcdir}/additional-gl-header.patch
-  patch -p1 -i ${srcdir}/add-gstreamer-cflags.patch
-  patch -p1 -i ${srcdir}/las-link-with-boost.patch
 
-  # https://github.com/openscenegraph/OpenSceneGraph/pull/1055
-  patch -p1 -i ${srcdir}/backport-1055.patch
-  # https://github.com/openscenegraph/OpenSceneGraph/pull/977
-  patch -p1 -i ${srcdir}/backport-977.patch
+  apply_patch_with_msg \
+    find-collada.patch \
+    find-freetype.patch \
+    additional-gl-header.patch \
+    add-gstreamer-cflags.patch \
+    las-link-with-boost.patch \
+    backport-1055.patch \
+    backport-977.patch \
+    0008-opencascade-7.6.0.patch
 }
 
 build() {
@@ -86,15 +101,15 @@ build() {
       msg "Building ${builddir%-${MSYSTEM}} version..."
 
       MSYS2_ARG_CONV_EXCL="-DCMAKE_INSTALL_PREFIX=" \
-      COLLADA_DIR=${MINGW_PREFIX} \
-      ${MINGW_PREFIX}/bin/cmake.exe \
-        -G"MSYS Makefiles" \
-        -DCMAKE_INSTALL_PREFIX=${MINGW_PREFIX} \
+      COLLADA_DIR="${MINGW_PREFIX}" \
+      "${MINGW_PREFIX}"/bin/cmake.exe \
+        -GNinja \
+        -DCMAKE_INSTALL_PREFIX="${MINGW_PREFIX}" \
         -DCMAKE_BUILD_TYPE=${builddir%-${MSYSTEM}} \
         ${_opts} \
         ../${_realname}-${_realname}-${_pkgver}
 
-      cmake --build .
+      "${MINGW_PREFIX}"/bin/cmake.exe --build .
     popd
   done
 }
@@ -103,9 +118,9 @@ package_OpenSceneGraph() {
   pkgdesc="Open source high performance 3D graphics toolkit (mingw-w64)"
 
   cd Release-${MSYSTEM}
-  DESTDIR=${pkgdir} cmake --install .
+  DESTDIR="${pkgdir}" "${MINGW_PREFIX}"/bin/cmake.exe --install .
 
-  install -Dm644 ${srcdir}/${_realname}-${_realname}-${_pkgver}/LICENSE.txt "${pkgdir}${MINGW_PREFIX}"/share/licenses/${_realname}/LICENSE
+  install -Dm644 "${srcdir}"/${_realname}-${_realname}-${_pkgver}/LICENSE.txt "${pkgdir}${MINGW_PREFIX}"/share/licenses/${_realname}/LICENSE
 }
 
 package_OpenSceneGraph-debug() {
@@ -114,13 +129,13 @@ package_OpenSceneGraph-debug() {
   pkgdesc="Open source high performance 3D graphics toolkit (debug) (mingw-w64)"
 
   cd Debug-${MSYSTEM}
-  DESTDIR=${pkgdir} cmake --install .
+  DESTDIR="${pkgdir}" "${MINGW_PREFIX}"/bin/cmake.exe --install .
 
-  rm -rf ${pkgdir}${MINGW_PREFIX}/include
-  rm -rf ${pkgdir}${MINGW_PREFIX}/lib/pkgconfig
-  rm -rf ${pkgdir}${MINGW_PREFIX}/share
+  rm -rf "${pkgdir}${MINGW_PREFIX}"/include
+  rm -rf "${pkgdir}${MINGW_PREFIX}"/lib/pkgconfig
+  rm -rf "${pkgdir}${MINGW_PREFIX}"/share
 
-  install -Dm644 ${srcdir}/${_realname}-${_realname}-${_pkgver}/LICENSE.txt "${pkgdir}${MINGW_PREFIX}"/share/licenses/${_realname}-debug/LICENSE
+  install -Dm644 "${srcdir}"/${_realname}-${_realname}-${_pkgver}/LICENSE.txt "${pkgdir}${MINGW_PREFIX}"/share/licenses/${_realname}-debug/LICENSE
 }
 
 # template start; name=mingw-w64-splitpkg-wrappers; version=1.0;
diff --git a/mingw-w64-OpenSceneGraph/fix-3ds-plugin.patch b/mingw-w64-OpenSceneGraph/fix-3ds-plugin.patch
deleted file mode 100644
index f509cc7836..0000000000
--- a/mingw-w64-OpenSceneGraph/fix-3ds-plugin.patch
+++ /dev/null
@@ -1,11 +0,0 @@
---- OpenSceneGraph-OpenSceneGraph-3.5.5/src/osgPlugins/3ds/ReaderWriter3DS.cpp	2017-02-24 13:09:52.785969600 +0100
-+++ OpenSceneGraph-OpenSceneGraph-3.5.5/src/osgPlugins/3ds/ReaderWriter3DS.cpp.orig	2017-02-24 13:01:55.130353400 +0100
-@@ -619,7 +619,7 @@
-         {
-             // add our geometry to group (where our children already are)
-             // creates geometry under modifier node
--            processMesh(drawStateMap,group,mesh,meshAppliedMatPtr);
-+            processMesh(drawStateMap,meshTransform,mesh,meshAppliedMatPtr);
-             return group;
-         }
-         else