From ce1809e50da6e49e5d57e0ae7961496f0af83506 Mon Sep 17 00:00:00 2001
From: lisyarus <lisyarus@gmail.com>
Date: Tue, 24 Jan 2023 12:01:51 +0300
Subject: [PATCH] Support material names & emission in gltf parser

---
 libs/gfx/include/psemek/gfx/gltf_parser.hpp |  2 ++
 libs/gfx/source/gltf_parser.cpp             | 10 ++++++++++
 2 files changed, 12 insertions(+)

diff --git a/libs/gfx/include/psemek/gfx/gltf_parser.hpp b/libs/gfx/include/psemek/gfx/gltf_parser.hpp
index 66c6e882..477c6d10 100644
--- a/libs/gfx/include/psemek/gfx/gltf_parser.hpp
+++ b/libs/gfx/include/psemek/gfx/gltf_parser.hpp
@@ -34,8 +34,10 @@ namespace psemek::gfx
 
 		struct material
 		{
+			std::string name;
 			std::optional<color_4f> albedo;
 			std::optional<std::size_t> texture;
+			std::optional<color_3f> emission;
 		};
 
 		struct texture
diff --git a/libs/gfx/source/gltf_parser.cpp b/libs/gfx/source/gltf_parser.cpp
index 649daba8..e41568f8 100644
--- a/libs/gfx/source/gltf_parser.cpp
+++ b/libs/gfx/source/gltf_parser.cpp
@@ -102,6 +102,8 @@ namespace psemek::gfx
 		{
 			auto & target = result.materials.emplace_back();
 
+			target.name = material["name"].GetString();
+
 			auto const & pbr = material["pbrMetallicRoughness"];
 
 			if (pbr.HasMember("baseColorFactor"))
@@ -116,6 +118,14 @@ namespace psemek::gfx
 			{
 				target.texture = document["textures"].GetArray()[pbr["baseColorTexture"]["index"].GetUint64()]["source"].GetInt64();
 			}
+
+			if (material.HasMember("emissiveFactor"))
+			{
+				auto const & emission = material["emissiveFactor"].GetArray();
+				gfx::color_3f & target_emission = target.emission.emplace();
+				for (std::size_t i = 0; i < 3; ++i)
+					target_emission[i] = emission[i].GetFloat();
+			}
 		}
 
 		for (auto const & image : document["images"].GetArray())