example fixes

Cargo.lock

@@ -1054,16 +1054,15 @@ dependencies = [
 
 [[package]]
 name = "gltf"
-version = "1.4.0"
+version = "1.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3b78f069cf941075835822953c345b9e1edd67ae347b81ace3aea9de38c2ef33"
+checksum = "ad2dcfb6dd7a66f9eb3d181a29dcfb22d146b0bcdc2e1ed1713cbf03939a88ea"
 dependencies = [
  "base64",
  "byteorder",
  "gltf-json",
  "image 0.24.7",
  "lazy_static",
- "serde_json",
  "urlencoding",
 ]
 
@@ -1081,9 +1080,9 @@ dependencies = [
 
 [[package]]
 name = "gltf-json"
-version = "1.4.0"
+version = "1.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "655951ba557f2bc69ea4b0799446bae281fa78efae6319968bdd2c3e9a06d8e1"
+checksum = "7d5b810806b78dde4b71a95cc0e6fdcab34c4c617da3574df166f9987be97d03"
 dependencies = [
  "gltf-derive",
  "serde",

Cargo.toml

@@ -26,8 +26,8 @@ iai = "0.1"
 vtf = "0.1.6"
 tracing = "0.1.40"
 tracing-subscriber = "0.3.18"
-gltf-json = "1.3.0"
-gltf = "1.3.0"
+gltf-json = "=1.3.0"
+gltf = "=1.3.0"
 image = "0.23.14"
 clap = { version = "4.4.11", features = ["derive"] }
 main_error = "0.1.2"

examples/common/materials.rs

@@ -54,7 +54,7 @@ pub fn load_material(
     let path = format!("{}.vmt", name.to_ascii_lowercase().trim_end_matches(".vmt"));
     let path = loader
         .find_in_paths(&path, &dirs)
-        .ok_or(Error::Other(format!("Can't find file {}", path)))?;
+        .ok_or_else(|| Error::Other(format!("Can't find file {}", path)))?;
     let raw = loader.load(&path)?.expect("didn't find foudn path?");
     let vdf = String::from_utf8(raw)?;
 
@@ -71,7 +71,9 @@ pub fn load_material(
         Ok::<_, Error>(vdf)
     })?;
 
-    let base_texture = material.base_texture();
+    let base_texture = material
+        .base_texture()
+        .ok_or_else(|| Error::Other("no basetexture".into()))?;
 
     let translucent = material.translucent();
     let glass = material.surface_prop() == Some("glass");