Fallback options for object names + w coordinate fix

.github/workflows/rust.yml

@@ -6,6 +6,14 @@ env:
     CARGO_TERM_COLOR: always
 
 jobs:
+    check_fmt:
+      runs-on: ubuntu-latest
+      steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@nightly
+        with:
+          components: rustfmt
+      - run: cargo +nightly fmt --check
     build_linux:
       runs-on: ubuntu-latest
       steps:
@@ -14,8 +22,6 @@ jobs:
         run: cargo build --verbose
       - name: Run tests
         run: cargo test --verbose
-      - name: Cargo Format
-        run: cargo fmt -- --check
     build_windows:
       runs-on: windows-latest
       steps:

obj/cornell_box2.mtl

@@ -3,7 +3,7 @@ Ka 0 0 0
 Kd 0 0 1
 Ks 0 0 0
 Ns 10
-crazy_unknown Wierd stuff here
+crazy_unknown Weird stuff here
 
 newmtl light
 Ka 20 20 20

obj/triangle_scaled.obj

@@ -0,0 +1,7 @@
+# A simple triangle object for testing
+o Triangle
+v 0 0 0 0.5
+v 1 0 0 0.5
+v 0 1 0 0.5
+
+f -3 -2 -1

obj/triangle_scaled_by_zero.obj

@@ -0,0 +1,7 @@
+# A simple triangle object for testing
+o Triangle
+v 0 0 0 0.0
+v 1 0 0 0.5
+v 0 1 0 0.5
+
+f -3 -2 -1

obj/triangle_with_two_additional_floats.obj

@@ -0,0 +1,7 @@
+# A simple triangle object for testing
+o Triangle
+v 0 0 0 0.5 1
+v 1 0 0 0.5 0
+v 0 1 0 0.5 1
+
+f -3 -2 -1

obj/unnamed_lines.obj

@@ -0,0 +1,27 @@
+# A couple of unnamed groups to test name fallback
+g
+v 0 0 0
+v 1 0 0
+v 0 1 0
+
+l -3 -2
+l -2 -1
+l -1 -3
+
+g group_with_name
+v 0 0 0
+v 1 0 0
+v 0 1 0
+
+l -3 -2
+l -2 -1
+l -1 -3
+
+g
+v 0 0 0
+v 1 0 0
+v 0 1 0
+
+l -3 -2
+l -2 -1
+l -1 -3