Set the model vertex colors to white

When running the given examples I had an all black screen. I realized the shader was still multiplying the texture and vertex colors. An alternative solution would be to modify the fragment shader, but felt it was better to provide proper Vertex attributes.
Overv · Overv · Oct 14, 2016 · Oct 14, 2016 · Oct 14, 2016 · 86fd19d54b1a542157a69390fb1de204128cfdc9
commit 86fd19d54b1a542157a69390fb1de204128cfdc9
diff --git a/08_Loading_models.md b/08_Loading_models.md
@@ -207,6 +207,8 @@ vertex.texCoord = {
     attrib.texcoords[2 * index.texcoord_index + 0],
     attrib.texcoords[2 * index.texcoord_index + 1]
 };
+
+vertex.color = {1.0f, 1.0f, 1.0f};
 ```
 
 Unfortunately the `attrib.vertices` array is an array of `float` values instead

diff --git a/code/model_loading.cpp b/code/model_loading.cpp
@@ -1002,6 +1002,8 @@ class HelloTriangleApplication {
                     1.0f - attrib.texcoords[2 * index.texcoord_index + 1]
                 };
 
+                vertex.color = {1.0f, 1.0f, 1.0f};
+
                 if (uniqueVertices.count(vertex) == 0) {
                     uniqueVertices[vertex] = vertices.size();
                     vertices.push_back(vertex);