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/* SPDX-License-Identifier: GPL-2.0-or-later */
/** \file
* \ingroup obj
*/
#pragma once
#include "BLI_map.hh"
#include "BLI_math_vec_types.hh"
#include "BLI_string_ref.hh"
#include "BLI_vector.hh"
#include "DNA_node_types.h"
#include "obj_export_io.hh"
namespace blender {
template<> struct DefaultHash<io::obj::eMTLSyntaxElement> {
uint64_t operator()(const io::obj::eMTLSyntaxElement value) const
{
return static_cast<uint64_t>(value);
}
};
} // namespace blender
namespace blender::io::obj {
class OBJMesh;
/**
* Generic container for texture node properties.
*/
struct tex_map_XX {
tex_map_XX(StringRef to_socket_id) : dest_socket_id(to_socket_id){};
/** Target socket which this texture node connects to. */
const std::string dest_socket_id;
float3 translation{0.0f};
float3 scale{1.0f};
/* Only Flat and Smooth projections are supported. */
int projection_type = SHD_PROJ_FLAT;
std::string image_path;
std::string mtl_dir_path;
};
/**
* Container suited for storing Material data for/from a .MTL file.
*/
struct MTLMaterial {
MTLMaterial()
{
texture_maps.add(eMTLSyntaxElement::map_Kd, tex_map_XX("Base Color"));
texture_maps.add(eMTLSyntaxElement::map_Ks, tex_map_XX("Specular"));
texture_maps.add(eMTLSyntaxElement::map_Ns, tex_map_XX("Roughness"));
texture_maps.add(eMTLSyntaxElement::map_d, tex_map_XX("Alpha"));
texture_maps.add(eMTLSyntaxElement::map_refl, tex_map_XX("Metallic"));
texture_maps.add(eMTLSyntaxElement::map_Ke, tex_map_XX("Emission"));
texture_maps.add(eMTLSyntaxElement::map_Bump, tex_map_XX("Normal"));
}
/**
* Caller must ensure that the given lookup key exists in the Map.
* \return Texture map corresponding to the given ID.
*/
tex_map_XX &tex_map_of_type(const eMTLSyntaxElement key)
{
{
BLI_assert(texture_maps.contains_as(key));
return texture_maps.lookup_as(key);
}
}
std::string name;
/* Always check for negative values while importing or exporting. Use defaults if
* any value is negative. */
float Ns{-1.0f};
float3 Ka{-1.0f};
float3 Kd{-1.0f};
float3 Ks{-1.0f};
float3 Ke{-1.0f};
float Ni{-1.0f};
float d{-1.0f};
int illum{-1};
Map<const eMTLSyntaxElement, tex_map_XX> texture_maps;
/** Only used for Normal Map node: "map_Bump". */
float map_Bump_strength{-1.0f};
};
MTLMaterial mtlmaterial_for_material(const Material *material);
} // namespace blender::io::obj
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