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int get_num_closures();		int get_num_closures();

void dump_graph(const char *filename);		void dump_graph(const char *filename);

protected:		protected:
typedef pair<ShaderNode* const, ShaderNode*> NodePair;		typedef pair<ShaderNode* const, ShaderNode*> NodePair;

void find_dependencies(set<ShaderNode>& dependencies, ShaderInput input);		void find_dependencies(set<ShaderNode>& dependencies, const ShaderInput input) const;
void copy_nodes(set<ShaderNode>& nodes, map<ShaderNode, ShaderNode*>& nnodemap);		void copy_nodes(set<ShaderNode>& nodes, map<ShaderNode, ShaderNode*>& nnodemap);

void break_cycles(ShaderNode *node, vector<bool>& visited, vector<bool>& on_stack);		void break_cycles(ShaderNode *node, vector<bool>& visited, vector<bool>& on_stack);
void clean();		void clean();
void bump_from_displacement();		void bump_from_displacement();
void refine_bump_nodes();		void refine_bump_nodes();
void default_inputs(bool do_osl);		void default_inputs(bool do_osl);
void transform_multi_closure(ShaderNode node, ShaderOutput weight_out, bool volume);		void transform_multi_closure(ShaderNode node, ShaderOutput weight_out, bool volume);
};		};

CCL_NAMESPACE_END		CCL_NAMESPACE_END

#endif /* __GRAPH_H__ */		#endif /* __GRAPH_H__ */