1

utils/vbsp/normals.cpp

@@ -0,0 +1,50 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $NoKeywords: $
+//
+//=============================================================================//
+#include "bsplib.h"
+#include "vbsp.h"
+
+
+void SaveVertexNormals( void )
+{
+	int i, j;
+	dface_t *f;
+	texinfo_t	*tex;
+
+
+	g_numvertnormalindices = 0;
+	g_numvertnormals = 0;
+
+	for( i = 0 ;i<numfaces ; i++ )
+	{
+		f = &dfaces[i];
+		tex = &texinfo[f->texinfo];
+
+		for( j = 0; j < f->numedges; j++ )
+		{
+			if( g_numvertnormalindices == MAX_MAP_VERTNORMALINDICES )
+			{
+				Error( "g_numvertnormalindices == MAX_MAP_VERTNORMALINDICES (%d)", MAX_MAP_VERTNORMALINDICES );
+			}
+			
+			g_vertnormalindices[g_numvertnormalindices] = g_numvertnormals;
+			g_numvertnormalindices++;
+		}
+
+		// Add this face plane's normal.
+		// Note: this doesn't do an exhaustive vertex normal match because the vrad does it.
+		// The result is that a little extra memory is wasted coming out of vbsp, but it
+		// goes away after vrad.
+		if( g_numvertnormals == MAX_MAP_VERTNORMALS )
+		{
+			Error( "g_numvertnormals == MAX_MAP_VERTNORMALS (%d)", MAX_MAP_VERTNORMALS );
+		}
+
+		g_vertnormals[g_numvertnormals] = dplanes[f->planenum].normal;
+		g_numvertnormals++;
+	}
+}