File Material.cpp

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#include "Material.h"

std::vector<std::string> Material::mat_uniform_name = { 
    "albedo",
    "metal",
    "rough",
    "specu",
    "emis_c",
    "emis_s",
    "alpha",
    "normal",
    "bump"
};

void Material::InitParamData()
{
    mat_params = {
        {MAT_ALBEDO,    {MPARA_COL, 1.0f, glm::vec3(1), nullptr}},
        {MAT_METAL,     {MPARA_FLT, 0.0f, glm::vec3(0), nullptr}},
        {MAT_SPEC,      {MPARA_FLT, 0.5f, glm::vec3(0.5), nullptr}},
        {MAT_ROUGH,     {MPARA_FLT, 0.5f, glm::vec3(0.5), nullptr}},
        {MAT_EMIS_COL,  {MPARA_COL, 0.0f, glm::vec3(0), nullptr}},
        {MAT_EMIS_STR,  {MPARA_FLT, 0.0f, glm::vec3(0), nullptr}},
        {MAT_ALPHA,     {MPARA_FLT, 1.0f, glm::vec3(1), nullptr}},
        {MAT_NORMAL,    {MPARA_COL, 0.0f, glm::vec3(0), nullptr}},
        {MAT_BUMP,      {MPARA_FLT, 0.0f, glm::vec3(0), nullptr}}
    };
}

Material::Material()
{
    InitParamData();
}

Material::~Material()
{

}

Material::MaterialRes Material::LoadMaterial(std::string _path /*= ""*/)
{
    return nullptr;
}

void Material::ParseConfig(const std::string& _config)
{

}

void Material::SetMatParam(MatParaType _tar, MatDataType _type)
{
    auto& [type, flt, _col, _tex] = mat_params[_tar];
    if (type != _type)
        is_mat_changed = is_mat_struct_changed = true;

    type = _type;
}

void Material::SetMatParam(MatParaType _tar, float _var)
{
    auto& [type, flt, _col, _tex] = mat_params[_tar];
    if (type != MPARA_FLT)
        is_mat_changed = is_mat_struct_changed = true;

    if (flt != _var)
        is_mat_changed = true;

    flt = _var;
    type = MPARA_FLT;
}

void Material::SetMatParam(MatParaType _tar, glm::vec3 _col)
{
    auto& [type, _flt, col, _tex] = mat_params[_tar];
    if (type != MPARA_COL)
        is_mat_changed = is_mat_struct_changed = true;

    if (col != _col)
        is_mat_changed = true;

    col = _col;
    type = MPARA_COL;
}

void Material::SetMatParam(MatParaType _tar, TextureLib::TextureRes _tex)
{
    auto& [type, _flt, _col, tex] = mat_params[_tar];
    if (type != MPARA_TEX)
        is_mat_changed = is_mat_struct_changed = true;

    if (tex != _tex)
        is_mat_changed = true;

    tex = _tex;
    type = MPARA_TEX;
}

void Material::BindMatTexture() const
{
    for (const auto& [ptype, pdata] : mat_params) {

        const auto& [dtype, _1, _2, tex] = pdata;
        if (dtype != MPARA_TEX) continue;

        tex->Bind(ptype);
    }
}