added helper method to each chunk struct to calculate it's own size (that is, the size to be written out to mesh files)

MeshConverter/src/chunks/materials.h

@@ -21,6 +21,26 @@ struct MaterialsChunk
 	{
 		SAFE_DELETE_ARRAY(materials);
 	}
+
+	size_t GetSize()
+	{
+		if (count == 0)
+			return 0;
+
+		size_t size = sizeof(uint32_t);
+		for (uint32_t i = 0; i < count; ++i)
+		{
+			size += materials[i].name.length() + 1;   // include null terminator
+			size += sizeof(float) * 4;  // ambient
+			size += sizeof(float) * 4;  // diffuse
+			size += sizeof(float) * 4;  // specular
+			size += sizeof(float) * 4;  // emissive
+			size += sizeof(float);      // shininess
+			size += sizeof(float);      // opacity
+		}
+
+		return size;
+	}
 };
 
 #endif

MeshConverter/src/chunks/normals.h

@@ -21,6 +21,19 @@ struct NormalsChunk
 	{
 		SAFE_DELETE_ARRAY(normals);
 	}
+
+	size_t GetSize()
+	{
+		if (count == 0)
+			return 0;
+
+		size_t size = sizeof(uint32_t);
+		size += 
+			(sizeof(float) * 3)   // x, y, z
+			* count;
+
+		return size;
+	}
 };
 
 #endif

MeshConverter/src/chunks/texcoords.h

@@ -21,6 +21,19 @@ struct TexCoordsChunk
 	{
 		SAFE_DELETE_ARRAY(texCoords);
 	}
+
+	size_t GetSize()
+	{
+		if (count == 0)
+			return 0;
+
+		size_t size = sizeof(uint32_t);
+		size += 
+			(sizeof(float) * 2)   // u, v
+			* count;
+
+		return size;
+	}
 };
 
 #endif

MeshConverter/src/chunks/triangles.h

@@ -21,6 +21,23 @@ struct TrianglesChunk
 	{
 		SAFE_DELETE_ARRAY(triangles);
 	}
+
+	size_t GetSize()
+	{
+		if (count == 0)
+			return 0;
+
+		size_t size = sizeof(uint32_t);
+		size += 
+			(
+				(sizeof(uint32_t) * 3)   // vertex indices
+				+ (sizeof(uint32_t) * 3) // normal indices
+				+ (sizeof(uint32_t) * 3) // texcoord indices
+				+ sizeof(uint32_t)       // material index
+			) * count;
+
+		return size;
+	}
 };
 
 #endif

MeshConverter/src/chunks/vertices.h

@@ -21,6 +21,19 @@ struct VerticesChunk
 	{
 		SAFE_DELETE_ARRAY(vertices);
 	}
+
+	size_t GetSize()
+	{
+		if (count == 0)
+			return 0;
+
+		size_t size = sizeof(uint32_t);
+		size += 
+			(sizeof(float) * 3)   // x, y, z
+			* count;
+
+		return size;
+	}
 };
 
 #endif