ShadingNetwork.h

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/*

             *
            ***
           *****
   *********************       Mercenaries Engineering SARL
     *****************              Copyright (C) 2025
       *************
         *********        http://www.mercenaries-engineering.com
        ***********
       ****     ****
      **           **

*/
#pragma once

namespace maquina
{

class Dict;
class EvalContext;
class ExprCall;
class Value;

struct ShadingNetworkSimpleDep
{
  int dep;
  bool default_if_not_connected = false;
};

}


MAQUINA_EXPORT bool shading_network_is_input_provided(maquina::EvalContext& ctx, int dep);
MAQUINA_EXPORT maquina::Value shading_network_eval_simple(maquina::EvalContext& ctx, const char* name, const gsl::span<maquina::ShadingNetworkSimpleDep>& shading_deps);
MAQUINA_EXPORT std::pair<maquina::Value, bool> shading_network_input_expr(maquina::EvalContext& ctx, int dep);
MAQUINA_EXPORT void shading_network_gather_input_params(maquina::EvalContext& ctx, maquina::Dict& params, int dep);
MAQUINA_EXPORT void shading_network_gather_input_params(maquina::EvalContext& ctx, maquina::Dict& params, const gsl::span<const int>& deps);
MAQUINA_EXPORT bool shading_network_is_constant(const std::pair<maquina::Value, bool>& input, const Imath::V3d& value);
MAQUINA_EXPORT maquina::ExprCall shading_network_binop(const char* op, const maquina::Value& a, const maquina::Value& b);
MAQUINA_EXPORT maquina::ExprCall shading_network_add(const maquina::Value& a, const maquina::Value& b);
MAQUINA_EXPORT maquina::ExprCall shading_network_subtract(const maquina::Value& a, const maquina::Value& b);
MAQUINA_EXPORT maquina::ExprCall shading_network_multiply(const maquina::Value& a, const maquina::Value& b);
MAQUINA_EXPORT maquina::ExprCall shading_network_extract(const maquina::Value& a, const maquina::Value& b);
MAQUINA_EXPORT maquina::ExprCall shading_network_combine3(const maquina::Value& a, const maquina::Value& b, const maquina::Value& c);
MAQUINA_EXPORT maquina::ExprCall shading_network_mix(const maquina::Value& fg, const maquina::Value& bg, const maquina::Value& m);