Question

当尝试使用GLFW / GLEW在C / C ++中编译GLSL着色器时，出现以下错误：

##view :
class PostDetailView(DetailView):
    model = Post
    def get_context_data(self, **kwargs):
        context = super(PostDetailView, self).get_context_data(**kwargs)
        context['comments'] = Comment.objects.filter(post_id=self.object.id).all()
        context['comments_number'] = Comment.objects.filter(post_id=self.object.id).count()
        context['form'] = CommentForm()
        return context


    def post(self, request, pk):
        form = CommentForm(request.POST)
        if form.is_valid():
            comment = form.save(commit=False)
            comment.post = Post.objects.get(id=pk)
            comment.user = request.user
            comment.save()
            post = Post.objects.get(pk=pk)
            post.comments_nmb+=1
            post.save()
        return HttpResponseRedirect(request.META.get('HTTP_REFERER'))


##template:
{% extends "blog/base.html" %}
{% block content %}
<article class="media content-section">
<img class="rounded-circle article-img" src="{{ object.author.profile.image.url }}">
<div class="media-body">
  <div class="article-metadata">
    <a class="mr-2" href="{% url 'user-posts' object.author.username %}">{{ object.author }}</a>
    <small class="text-muted">{{ object.date_posted|date:"F d, Y" }}</small>
    {% if object.author == user %}
      <div>
        <a class="btn btn-secondary btn-sm mt-1 mb-1" href="{% url 'post-update' object.id %}">Update</a>
        <a class="btn btn-danger btn-sm mt-1 mb-1" href="{% url 'post-delete' object.id %}">Delete</a>
      </div>
    {% endif %}
  </div>
  <h2 class="article-title">{{ object.title }}</h2>
  <p class="article-content">{{ object.content }}</p>
  <p>{{comments_number}} Comments</p>
 {%  for comment in comments %}
 <div class="media">                            
                        <a class="float-left">
                          <img class="rounded-circle account-img" src="{{ comment.user.profile.image.url }}">
                        </a>
                        <div class="media-body">

                          <h4 class="media-heading ">{{ comment.user.username }}</h4>
                          {{comment.text}}
                        </div>
                        <p class="float-right"><small>{{ comment.date}}</small></p>
                      </div>
{% endfor %}
</div>
</article>
{% endblock content %}

我遵循了learnopengl.com的教程。该代码运行并显示一个空白的正方形，上面的错误消息被打印到命令行。有什么想法，怎么办？

片段着色器是：

0(12) : error C5052: gl_Position is not accessible in this profile

顶点着色器是：

#version 410 

layout (location = 0) in vec3 aPos;
layout (location = 1) in vec3 aColor;
layout (location = 2) in vec2 aTexCoord;

out vec3 ourColor;
out vec2 TexCoord;

void main()
{
    gl_Position = vec4(aPos, 1.0);
    ourColor = aColor;
    TexCoord = aTexCoord;
}

如果您想查看其余的代码，请参考上面的教程链接。

Answer 1

好像您尝试将片段着色器加载为顶点着色器，反之亦然。 gl_Position只能在顶点着色器中设置，因为它是每个顶点的属性。不过，以正确的顺序加载着色器应该可以解决该问题。

在此配置文件中无法访问gl_Position？

1 个答案: