Since these are in reference it no longer is easy to switch to

this implementation, so update the comment that they are reference
for those seeking to understand the SOP algorithms.

Signed-off-by: Jeff Lait <[email protected]>

Author: jmlait

openvdb_houdini/openvdb_houdini/reference/GEO_PrimVDB.h

@@ -17,10 +17,13 @@
  */
 
 
-// Using the native OpenVDB Primitive shipped with Houdini is strongly recommended,
-// as there is no guarantee that this code will be kept in sync with Houdini.
-// However, for debugging it can be useful, so supply -DSESI_OPENVDB_PRIM to
-// the compiler to build this custom primitive.
+// Using the native OpenVDB Primitive shipped with Houdini is strongly
+// recommended, as there is no guarantee that this code will be kept in sync
+// with Houdini.
+// This code is provided to help ensure algorithms in the provided SOPs
+// can be re-implemented by revealing the otherwise the hidden implementations.
+// It is possible to replace Houdini's GU_PrimVDB with this, but no
+// official support for that remains.
 
 #if !defined(SESI_OPENVDB) && !defined(SESI_OPENVDB_PRIM)
 

openvdb_houdini/openvdb_houdini/reference/GU_PrimVDB.h

@@ -18,10 +18,13 @@
 
 #include <UT/UT_Version.h>
 
-// Using the native OpenVDB Primitive shipped with Houdini is strongly recommended,
-// as there is no guarantee that this code will be kept in sync with Houdini.
-// However, for debugging it can be useful, so supply -DSESI_OPENVDB_PRIM to
-// the compiler to build this custom primitive.
+// Using the native OpenVDB Primitive shipped with Houdini is strongly
+// recommended, as there is no guarantee that this code will be kept in sync
+// with Houdini.
+// This code is provided to help ensure algorithms in the provided SOPs
+// can be re-implemented by revealing the otherwise the hidden implementations.
+// It is possible to replace Houdini's GU_PrimVDB with this, but no
+// official support for that remains.
 
 #if !defined(SESI_OPENVDB) && !defined(SESI_OPENVDB_PRIM)