From: Mikko Rasa <tdb@tdb.fi>
Date: Sat, 24 Nov 2012 19:42:19 +0000 (+0200)
Subject: Re-apply vertex array if it has been modified
X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=commitdiff_plain;h=6d0c86fc3211418ab4292d73f738e55043139b49

Re-apply vertex array if it has been modified
---

diff --git a/source/vertexarray.cpp b/source/vertexarray.cpp
index 9d8e4477..527052e9 100644
--- 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)