public void DrawQuad(int texture, GLVertex[] vertices)
{
texture = getTexture(texture);
_graphics.BindTexture2D(texture);
_graphics.BufferData(vertices, GLVertex.Size, BufferType.ArrayBuffer);
_graphics.InitPointers(GLVertex.Size);
_graphics.BufferData(_quadIndices, sizeof(short), BufferType.ElementArrayBuffer);
_graphics.SetShaderAppVars();
_graphics.DrawElements(PrimitiveMode.Triangles, 6, _quadIndices);
}