Merge pull request #44 from stisol/vertex-colors

Vertex colors

.github/workflows/rust.yml

@@ -32,3 +32,16 @@ jobs:
         run: cargo build --verbose
       - name: Run tests
         run: cargo test --verbose
+    nightly_features_linux:
+      runs-on: ubuntu-latest
+      steps:
+      - uses: actions/checkout@v2
+      - uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: nightly
+          override: true
+      - name: Build
+        run: cargo build --verbose
+      - name: Run tests
+        run: cargo test --verbose --all-features 

README.md

@@ -17,13 +17,13 @@ Arbitrary polygons may not behave as expected. The best solution would be to
 convert your mesh to solely consist of triangles in your modeling
 software.
 
-## Optional – Normals & Texture Coordinates
+## Optional – Normals, Texture Coordinates and Vertex Colors
 
-It is assumed that all meshes will at least have positions, but normals and
-texture coordinates are optional.
+It is assumed that all meshes will at least have positions, but normals, texture
+coordinates and vertex colors are optional.
 
-If no normals or texture coordinates are found then the corresponding `Vec`s
-for the `Mesh` will be empty.
+If no normals, texture coordinates or vertex colors are found, then the
+corresponding `Vec`s for the `Mesh` will be empty.
 
 ## Flat Data
 

obj/quad_colored_merge.obj

@@ -0,0 +1,12 @@
+# A simple triangle object with vertex colors for testing
+o Quad
+v 0 0 0 1 0 0 
+v 1 0 0 0 1 0
+v 0 1 0 0 0 1
+v 1 0 0 0 0 0
+v 0 1 0 0 0 1
+v 1 1 0 1 1 1 
+vn 0 0 1
+
+f 1//1 2//1 3//1
+f 4//1 5//1 6//1

obj/triangle_colored.obj

@@ -0,0 +1,8 @@
+# A simple triangle object with vertex colors for testing
+o Triangle
+v 0 0 0 1 0 0 
+v 1 0 0 0 1 0
+v 0 1 0 0 0 1
+
+f -3 -2 -1
+