ospray 1.8.4 (new formula)

Closes #38637.

Signed-off-by: FX Coudert <fxcoudert@gmail.com>

Formula/ospray.rb

@@ -0,0 +1,45 @@
+class Ospray < Formula
+  desc "Ray-tracing-based rendering engine for high-fidelity visualization"
+  homepage "https://www.ospray.org/"
+  url "https://github.com/ospray/ospray/archive/v1.8.4.tar.gz"
+  sha256 "36527eb01a09b0f30608550373aa305ecbfa2faea23cd929cc731af5864ca326"
+  head "https://github.com/ospray/ospray.git"
+
+  depends_on "cmake" => :build
+  depends_on "ispc" => :build
+  depends_on "embree"
+  depends_on :macos => :mojave # Needs embree bottle built with SSE4.2.
+  depends_on "tbb"
+
+  def install
+    args = std_cmake_args + %w[
+      -DCMAKE_INSTALL_NAME_DIR=#{opt_lib}
+      -DCMAKE_INSTALL_RPATH=#{opt_lib}
+      -DOSPRAY_ENABLE_APPS=OFF
+      -DOSPRAY_ENABLE_TESTING=OFF
+      -DOSPRAY_ENABLE_TUTORIALS=OFF
+    ]
+
+    mkdir "build" do
+      system "cmake", *args, ".."
+      system "make"
+      system "make", "install"
+    end
+  end
+
+  test do
+    (testpath/"test.c").write <<~EOS
+      #include <assert.h>
+      #include <ospray/ospray.h>
+      int main(int argc, const char **argv) {
+        OSPError error = ospInit(&argc, argv);
+        assert(error == OSP_NO_ERROR);
+        ospShutdown();
+        return 0;
+      }
+    EOS
+
+    system ENV.cc, "test.c", "-I#{include}", "-L#{lib}", "-lospray"
+    system "./a.out"
+  end
+end