diff --git a/src/gl/data/gl_vertexbuffer.h b/src/gl/data/gl_vertexbuffer.h
index 50ddd7d13..f82172d08 100644
--- a/src/gl/data/gl_vertexbuffer.h
+++ b/src/gl/data/gl_vertexbuffer.h
@@ -44,7 +44,6 @@ struct FFlatVertex
 class FFlatVertexBuffer : public FVertexBuffer
 {
 	FFlatVertex *map;
-	FFlatVertex mDrawBuffer[1000];
 	unsigned int mIndex;
 	unsigned int mCurIndex;
 
@@ -170,5 +169,37 @@ public:
 
 #define VSO ((FSkyVertex*)NULL)
 
+struct FModelVertex
+{
+	float x, y, z;	// world position
+	float u, v;		// texture coordinates
+
+	void Set(float xx, float yy, float zz, float uu, float vv)
+	{
+		x = xx;
+		y = yy;
+		z = zz;
+		u = uu;
+		v = vv;
+	}
+};
+
+
+class FModelVertexBuffer : public FVertexBuffer
+{
+	int mIndexFrame[2];
+
+public:
+	TArray<FModelVertex> vbo_shadowdata;	// this is kept around for interpolating on GL 2.0
+
+	FModelVertexBuffer();
+	~FModelVertexBuffer();
+
+	void BindVBO();
+	void UpdateBufferPointers(int frame1, int frame2);
+};
+
+#define VMO ((FModelVertex*)NULL)
+
 
 #endif
\ No newline at end of file
diff --git a/src/gl/models/gl_models.h b/src/gl/models/gl_models.h
index ebfb8b8c5..4ba206983 100644
--- a/src/gl/models/gl_models.h
+++ b/src/gl/models/gl_models.h
@@ -2,9 +2,11 @@
 #define __GL_MODELS_H_
 
 #include "gl/utility/gl_geometric.h"
+#include "gl/data/gl_vertexbuffer.h"
 #include "p_pspr.h"
 #include "r_data/voxels.h"
 
+
 #define MAX_LODS			4
 
 enum { VX, VZ, VY };