From c4e41d76e1c320c252c27dc1ba916188de08e23c Mon Sep 17 00:00:00 2001
From: Marius Kintel <marius@kintel.net>
Date: Mon, 3 Feb 2014 22:53:54 -0500
Subject: Added --csglimit parameter


diff --git a/RELEASE_NOTES b/RELEASE_NOTES
index 0aa6ec0..e2a00a0 100644
--- a/RELEASE_NOTES
+++ b/RELEASE_NOTES
@@ -12,6 +12,7 @@ o FIXME: Experimental concat()
 Program Features:
 o Added --info parameter to the cmd-line for system/library info
 o Added --enable parameter to enable experimental features
+o Added --csglimit parameter to change CSG rendering limit
 o Added Reset View in GUI
 o Added Feature tab in Preferences 
 
diff --git a/src/openscad.cc b/src/openscad.cc
index 0fa9f92..5c21fa9 100644
--- a/src/openscad.cc
+++ b/src/openscad.cc
@@ -113,6 +113,7 @@ static void help(const char *progname)
          "%2%  --camera=eyex,y,z,centerx,y,z ] \\\n"
          "%2%[ --imgsize=width,height ] [ --projection=(o)rtho|(p)ersp] \\\n"
          "%2%[ --render | --preview[=throwntogether] ] \\\n"
+         "%2%[ --csglimit=num ] \\\n"
          "%2%[ --enable=<feature> ] \\\n"
          "%2%filename\n",
  				 progname % (const char *)tabstr);
@@ -581,6 +582,7 @@ int main(int argc, char **argv)
 		("info", "print information about the building process")
 		("render", "if exporting a png image, do a full CGAL render")
 		("preview", po::value<string>(), "if exporting a png image, do an OpenCSG(default) or ThrownTogether preview")
+		("csglimit", po::value<unsigned int>(), "if exporting a png image, stop rendering at the given number of CSG elements")
 		("camera", po::value<string>(), "parameters for camera when exporting png")
 	        ("imgsize", po::value<string>(), "=width,height for exporting png")
 		("projection", po::value<string>(), "(o)rtho or (p)erspective when exporting png")
@@ -622,6 +624,10 @@ int main(int argc, char **argv)
 		if (vm["preview"].as<string>() == "throwntogether")
 			renderer = Render::THROWNTOGETHER;
 
+	if (vm.count("csglimit")) {
+		RenderSettings::inst()->openCSGTermLimit = vm["csglimit"].as<unsigned int>();
+	}
+
 	if (vm.count("o")) {
 		// FIXME: Allow for multiple output files?
 		if (output_file) help(argv[0]);
-- 
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