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Parse emission texture & KHR_materials_emissive_strength from glTF

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This commit is contained in:
Nikita Lisitsa 2023-03-29 23:53:09 +03:00
parent fcd86fb359
commit 21e35a988a
2 changed files with 18 additions and 0 deletions
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1
libs/gfx/include/psemek/gfx/gltf_parser.hpp
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@ -56,6 +56,7 @@ namespace psemek::gfx
std::optional<color_4f> albedo;
std::optional<std::size_t> texture;
std::optional<color_3f> emission;
std::optional<std::size_t> emission_texture;
std::optional<std::size_t> material_texture;
};

17
libs/gfx/source/gltf_parser.cpp
View file

@ -70,6 +70,7 @@ namespace psemek::gfx
static std::unordered_set<std::string> supported_extensions =
{
"KHR_lights_punctual",
"KHR_materials_emissive_strength"
};
}
@ -207,6 +208,22 @@ namespace psemek::gfx
for (std::size_t i = 0; i < 3; ++i)
target_emission[i] = emission[i].GetFloat();
}
if (material.HasMember("emissiveTexture"))
{
target.emission_texture = document["textures"].GetArray()[material["emissiveTexture"]["index"].GetUint64()]["source"].GetInt64();
}
if (material.HasMember("extensions"))
{
auto const & extensions = material["extensions"];
if (extensions.HasMember("KHR_materials_emissive_strength"))
{
if (!target.emission)
target.emission = {1.f, 1.f, 1.f};
*target.emission *= extensions["KHR_materials_emissive_strength"]["emissiveStrength"].GetFloat();
}
}
}
if (document.HasMember("images")) for (auto const & image : document["images"].GetArray())