Are you a game developer or 3D modeler looking to export OBJ files from Source SDK? Look no further! Here's a quick guide to help you get started.

Step 1: Launch Source SDK. Open the Source SDK program on your computer. You can find it in the Steam Library under the 'Tools' section.

Step 2: Load your project. Once Source SDK is open, load the project you want to export the OBJ file from. This could be a custom map, character, or any other 3D asset.

Step 3: Prepare the 3D model. Ensure that your 3D model is properly positioned and scaled within the Source SDK editor. Make any necessary adjustments before exporting.

Step 4: Open the model viewer. Within Source SDK, navigate to the model viewer tool. This tool allows you to view and manipulate 3D models within the Source engine.

Step 5: Export as OBJ. Once your model is loaded in the model viewer, look for the option to export the model. In most cases, you can find this option under the 'File' or 'Export' menu. Select OBJ as the file format and choose a location to save the file.

Step 6: Adjust export settings. Depending on your specific needs, you may have the option to adjust the export settings for the OBJ file. This could include things like texture coordinates, smoothing groups, and material assignments.

Step 7: Save and export. After you've made any necessary adjustments, save your settings and export the OBJ file.

That's it! You've successfully exported an OBJ file from Source SDK. You can now use this file in your game development or 3D modeling projects. Keep in mind that the specific process may vary slightly depending on the version of Source SDK you're using, but these general steps should help you get started. Happy modeling!