bool supports_unified_sampling_functions() const;
virtual void visit(ProgramSyntax::FunctionCall &);
bool supports_interface_layouts() const;
+ bool supports_centroid_sampling() const;
+ bool supports_sample_sampling() const;
virtual void visit(ProgramSyntax::VariableDeclaration &);
bool supports_interface_blocks(const std::string &) const;
virtual void visit(ProgramSyntax::InterfaceBlock &);