ovis: implement MATERIAL_LINE_WIDTH

modules/ovis/include/opencv2/ovis.hpp

@@ -31,6 +31,7 @@ enum SceneSettings
 enum MaterialProperty
 {
     MATERIAL_POINT_SIZE,
+    MATERIAL_LINE_WIDTH,
     MATERIAL_OPACITY,
     MATERIAL_EMISSIVE,
     MATERIAL_TEXTURE0,

modules/ovis/src/ovis.cpp

@@ -753,6 +753,13 @@ void setMaterialProperty(const String& name, int prop, const Scalar& val)
         col.saturate();
         rpass->setEmissive(col);
         break;
+    case MATERIAL_LINE_WIDTH:
+#if OGRE_VERSION >= ((1 << 16) | (11 << 8) | 2)
+        rpass->setLineWidth(val[0]);
+#else
+        CV_Error(Error::StsError, "needs OGRE 1.11.2+ for this");
+#endif
+        break;
     default:
         CV_Error(Error::StsBadArg, "invalid or non Scalar property");
         break;