BC converter tool

Cargo.toml

@@ -3,6 +3,7 @@ name = "rust-engine"
 version = "0.1.0"
 authors = ["Till <asuro@posteo.de>"]
 edition = "2018"
+default-run = "rust-engine"
 
 [dependencies]
 vulkano-shaders = "0.20"
@@ -19,5 +20,9 @@ gilrs = "0.7.4"
 gltf = "0.15.2"
 mgf = "1.4.0"
 
+[[bin]]
+name = "converter"
+path = "build/converter/src/main.rs"
+
 [profile.dev.package."*"]
 opt-level = 3

build/converter/src/main.rs

@@ -0,0 +1,20 @@
+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("--no-mips")
+            .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);
+        }
+        
+    }
+}