Updates the o3dConverter to turn on filtering by default

because the collada exporters often set it to NONE or POINT.

Also make it change any collada standard Material 
that is used by a Primitive with no normals to use
"constant" shading.  This should make sketchup stuff
work.


Review URL: http://codereview.chromium.org/147192

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@19545 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 18 insertions, 3 deletions

diff --git a/o3d/converter/cross/converter_main.cc b/o3d/converter/cross/converter_main.cc
index 85cc594..650e0b7 100644
--- a/o3d/converter/cross/converter_main.cc
+++ b/o3d/converter/cross/converter_main.cc
@@ -80,9 +80,24 @@ int CrossMain(int argc, char**argv) {
     in_filename = o3d::WideToFilePath(values[0]);
     out_filename = o3d::WideToFilePath(values[1]);
   } else {
-    std::cerr << "Usage:  " << argv[0]
-              << " [--no-condition] [--base-path=<path>] [--up-axis=x,y,z]"
-              << " [--pretty-print] <infile.dae> [ <outfile> ]\n";
+    std::cerr << "Usage: " << argv[0]
+              << " [ options ] <infile.dae> [ <outfile> ]\n";
+    std::cerr
+        << "--no-condition\n"
+        << "    Stops the converter from conditioning shaders.\n"
+        << "--base-path=<path>\n"
+        << "    Sets the base path for finding textures and other external\n"
+        << "    files.\n"
+        << "--up-axis=x,y,z\n"
+        << "    Converts the file to have this up axis.\n"
+        << "--pretty-print\n"
+        << "    Makes the exported JSON easier to read.\n"
+        << "--keep-filters\n"
+        << "    Stops the converter from forcing all texture samplers to use\n"
+        << "    tri-linear filtering.\n"
+        << "--keep-materials\n"
+        << "    Stops the converter from changing materials to <constant> if\n"
+        << "    they are used by a mesh that has no normals.\n";
     return EXIT_FAILURE;
   }