use gltf::image::Source; fn main() { let doc = gltf::Gltf::open("models/box.gltf").unwrap(); for image in doc.images() { if let Source::Uri { uri, .. } = image.source() { println!("{}", uri); let tex_conv_output = std::process::Command::new("build/nvidia-texture-converter/nvtt_export.exe") .arg("-q").arg("fastest") .arg("-f").arg("bc1") .arg("-o").arg(format!("textures/{}.dds", image.name().unwrap())) .arg(uri) .current_dir("models") .output().expect("Failed to run texture converter."); println!("{:?}", tex_conv_output); } } }