pyobjc-framework-modelio

import os from ModelIO import MDLAsset, MDLMesh, MDLMaterial from Foundation import NSURL # Note: ModelIO is a macOS-only framework for 3D asset manipulation. # This code will only run on macOS. def create_simple_asset(): # Create a simple mesh (e.g., a cube) # newBoxWithDimensions_segments_geometryType_inwardNormals_allocator_ is a class method cube_mesh = MDLMesh.newBoxWithDimensions_segments_geometryType_inwardNormals_allocator_( (1.0, 1.0, 1.0), # Dimensions (width, height, depth) (1, 1, 1), # Number of segments along each dimension 1, # MDLGeometryTypeTriangles = 1 False, # Inward normals None # Allocator (None for default) ) # Create a basic material material = MDLMaterial.alloc().initWithName_scatteringFunction_("MyMaterial", None) # Add the material to the mesh cube_mesh.addMaterial_(material) # Create an asset and add the mesh to it asset = MDLAsset.alloc().init() asset.addObjects_([cube_mesh]) # Define a temporary path to save the asset temp_dir = '/tmp' if not os.path.exists(temp_dir): os.makedirs(temp_dir) output_path = os.path.join(temp_dir, "simple_cube.obj") output_url = NSURL.fileURLWithPath_(output_path) # Export the asset to a file (e.g., OBJ format) # ModelIO supports various formats, but OBJ is simple. # exportAssetToURL_ is an instance method asset.exportAssetToURL_(output_url) print(f"Successfully created and saved a simple 3D asset to: {output_path}") if __name__ == "__main__": create_simple_asset()