The video outlines a step-by-step process for generating 3D meshes using the AI tool Trellis from Hugging Face, including uploading an image, extracting the mesh in GLB format, and processing it in Blender before exporting it as an FBX file. It also provides guidance on saving textures for use in game engines like Unity and suggests an alternative platform, 3D Arena, for sourcing 3D models.
The video provides a concise guide on how to generate 3D meshes using AI tools, specifically focusing on a platform called Trellis from Hugging Face. The first step involves searching for Trellis and uploading an image that you want to convert into a mesh. After the image is uploaded, users are instructed to click the “generate” button. Once the generation process is complete, the next step is to extract the mesh in GLB format by clicking on “extract GLB,” followed by downloading the GLB file.
After obtaining the GLB file, the tutorial transitions to using Blender for further processing. The first action in Blender is to delete any existing objects in the scene. Users are then guided to drag and drop the downloaded GLB file into Blender, followed by importing it as a GLTF file. The final step in Blender involves exporting the mesh as an FBX file, ensuring to apply transformations during the export process. However, the video notes that the exported FBX file may not retain the texture from the original image.
To address the texture issue, the video suggests switching to the image editor in Blender. Users are instructed to select the embedded image associated with the mesh and save it using the “image save” option. This step is crucial for ensuring that the texture can be applied correctly later on. The video emphasizes the importance of saving the texture separately to facilitate its assignment in game engines like Unity.
For users who plan to use the generated mesh in Unity, the video provides additional instructions on how to assign the saved texture. After importing the mesh into Unity, users need to select the imported mesh and navigate to the materials section. Here, they can extract the materials and assign the previously saved texture to the mesh, completing the process of integrating the AI-generated mesh into their project.
Towards the end of the video, the creator suggests an alternative to using Trellis, indicating that it may be outdated. They recommend visiting 3D Arena, where users can filter for open-source models and select a model from the leaderboard. This alternative approach provides users with a potentially more reliable source for 3D models, encouraging them to explore different options for generating and utilizing meshes in their projects.