New .obj parser, packer, mesher

1 files changed, 36 insertions, 0 deletions

diff --git a/gfx/models/obj.h b/gfx/models/obj.h
new file mode 100644
index 0000000..96c5e94
--- /dev/null
+++ b/gfx/models/obj.h
@@ -0,0 +1,36 @@
+#ifndef OBJ_H
+#define OBJ_H
+
+#ifndef yyFlexLexer
+#	define yyFlexLexer objbaseFlexLexer
+#	include <FlexLexer.h>
+#endif
+#include <filesystem>
+#include <fstream>
+#include <glm/glm.hpp>
+#include <memory>
+#include <vector>
+
+class ObjParser : yyFlexLexer {
+public:
+	explicit ObjParser(const std::filesystem::path & fileName) : ObjParser {std::make_unique<std::ifstream>(fileName)}
+	{
+	}
+
+	explicit ObjParser(std::unique_ptr<std::istream> in) : yyFlexLexer(in.get())
+	{
+		ObjParser::yylex();
+	}
+
+	int yylex() override;
+
+	std::vector<glm::vec4> vertices;
+	std::vector<glm::vec3> texCoords;
+	std::vector<glm::vec3> normals;
+	using FaceElement = glm::vec<3, int>;
+	using Face = std::vector<FaceElement>;
+	std::vector<Face> faces;
+	glm::length_t axis {0};
+};
+
+#endif