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Fix the code in 03-02

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This commit is contained in:
Meow J
2017-07-20 00:41:00 +08:00
parent 15b19fe8e1
commit 0e54bfedb5
1 changed files with 3 additions and 3 deletions
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6
docs/03 Model Loading/02 Mesh.md
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@@ -82,11 +82,11 @@ void setupMesh()
glBindVertexArray(VAO);
glBindBuffer(GL_ARRAY_BUFFER, VBO);
glBufferData(GL_ARRAY_BUFFER, vertices.size() * sizeof(Vertex), vertices[0], GL_STATIC_DRAW);
glBufferData(GL_ARRAY_BUFFER, vertices.size() * sizeof(Vertex), &vertices[0], GL_STATIC_DRAW);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, EBO);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, indices.size() * sizeof(unsigned int),
indices[0], GL_STATIC_DRAW);
&indices[0], GL_STATIC_DRAW);
// 顶点位置
glEnableVertexAttribArray(0);
@@ -117,7 +117,7 @@ vertex.TexCoords = glm::vec2(1.0f, 0.0f);
由于有了这个有用的特性，我们能够直接传入一大列的<fun>Vertex</fun>结构体的指针作为缓冲的数据，它们将会完美地转换为<fun>glBufferData</fun>所能用的参数：
```c++
glBufferData(GL_ARRAY_BUFFER, vertices.size() * sizeof(Vertex), vertices[0], GL_STATIC_DRAW);
glBufferData(GL_ARRAY_BUFFER, vertices.size() * sizeof(Vertex), &vertices[0], GL_STATIC_DRAW);
```
自然`sizeof`运算也可以用在结构体上来计算它的字节大小。这个应该是32字节的（8个float * 每个4字节）。