appleseed: init at 1.9.0-beta, osl: init at 1.9.9, seexpr: init at 2.11

pkgs/development/compilers/osl/default.nix

@@ -0,0 +1,39 @@
+{ clangStdenv, stdenv, fetchFromGitHub, cmake, zlib, openexr,
+openimageio, llvm, boost165, flex, bison, partio, pugixml,
+utillinux, python
+}:
+
+let boost_static = boost165.override { enableStatic = true; };
+in clangStdenv.mkDerivation rec {
+  # In theory this could use GCC + Clang rather than just Clang,
+  # but https://github.com/NixOS/nixpkgs/issues/29877 stops this
+  name = "openshadinglanguage-${version}";
+  version = "1.9.9";
+
+  src = fetchFromGitHub {
+    owner = "imageworks";
+    repo = "OpenShadingLanguage";
+    rev = "Release-1.9.9";
+    sha256 = "1w6wbz013nirzsiw11c9dpdkcwlfncs5va8q583pdw0q2pfkj5dn";
+  };
+
+  cmakeFlags = [ "-DUSE_BOOST_WAVE=ON" "-DENABLERTTI=ON" ];
+  enableParallelBuilding = true;
+
+  preConfigure = '' patchShebangs src/liboslexec/serialize-bc.bash '';
+  
+  buildInputs = [
+     cmake zlib openexr openimageio llvm
+     boost_static flex bison partio pugixml
+     utillinux # needed just for hexdump
+     python # CMake doesn't check this?
+  ];
+  # TODO: How important is partio? CMake doesn't seem to find it
+  meta = with stdenv.lib; {
+    description = "Advanced shading language for production GI renderers";
+    homepage = http://opensource.imageworks.com/?p=osl;
+    maintainers = with maintainers; [ hodapp ];
+    license = licenses.bsd3;
+    platforms = platforms.linux;
+  };
+}

pkgs/development/compilers/seexpr/default.nix

@@ -0,0 +1,23 @@
+{ stdenv, fetchFromGitHub, cmake, libpng, zlib, qt4,
+bison, flex, mesa_glu, pythonPackages
+}:
+
+stdenv.mkDerivation rec {
+  name = "seexpr-${version}";
+  version = "2.11";
+  src = fetchFromGitHub {
+    owner  = "wdas";
+    repo   = "SeExpr";
+    rev    = "v2.11";
+    sha256 = "0a44k56jf6dl36fwgg4zpc252wq5lf9cblg74mp73k82hxw439l4";
+  };
+
+  buildInputs = [ cmake mesa_glu libpng zlib qt4 pythonPackages.pyqt4 bison flex ];
+  meta = with stdenv.lib; {
+    description = "Embeddable expression evaluation engine from Disney Animation";
+    homepage = https://www.disneyanimation.com/technology/seexpr.html;
+    maintainers = with maintainers; [ hodapp ];
+    license = licenses.asl20;
+    platforms = platforms.linux;
+  };
+}