You might be interested in the (unfortunately named) Assimp library. While it is not a (fast) parser in and of itself, you can use it to produce an easy to parse format that contains only the data you are using, and it can load a lot of formats.
If you wish to parse the file yourself, it helps that the OBJ file format is very simple. I reccomend taking an equally simple approach - just bring in all the vertices into a vertex buffer and create an index buffer to use. Then render using Vertex Buffer Objects / Index Buffer Objects and just draw indexed triangles.
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您可能对（不幸命名的）Assimp 库感兴趣。虽然它本身不是一个（快速）解析器，但您可以使用它来生成一种易于解析的格式，该格式仅包含您正在使用的数据，并且它可以加载很多格式。
如果您想自己解析该文件，OBJ 文件格式非常简单，这会有所帮助。我建议采用同样简单的方法 - 只需将所有顶点放入顶点缓冲区并创建一个索引缓冲区即可使用。然后使用顶点缓冲区对象/索引缓冲区对象进行渲染并绘制索引三角形。
You might be interested in the (unfortunately named) Assimp library. While it is not a (fast) parser in and of itself, you can use it to produce an easy to parse format that contains only the data you are using, and it can load a lot of formats.
If you wish to parse the file yourself, it helps that the OBJ file format is very simple. I reccomend taking an equally simple approach - just bring in all the vertices into a vertex buffer and create an index buffer to use. Then render using Vertex Buffer Objects / Index Buffer Objects and just draw indexed triangles.