Re-apply vertex array if it has been modified

diff --git a/source/vertexarray.cpp b/source/vertexarray.cpp
index 9d8e4477b0ab5a4e3008c72b4f048de2b9d213f7..527052e9c0a36322c64aa6022da5e650a64e7e21 100644 (file)
--- a/source/vertexarray.cpp
+++ b/source/vertexarray.cpp
@@ -133,7 +133,11 @@ void VertexArray::apply() const
                throw invalid_operation("VertexArray::apply");
 
        const VertexArray *old = current();
-       if(!set_current(this))
+       /* If the array has been modified, apply it even if it was the last one to
+       be applied.  This is necessary to get the data updated to vertex buffer, and
+       to resync things after a format change.  Radeon drivers also have some
+       problems with modifying vertex arrays without re-setting the pointers. */
+       if(!set_current(this) && !dirty)
                return;
 
        if(vbuf)