c++ - 深度缓冲区似乎不起作用 - OpenGL Shader

Question

我正在将 openGL 与 GLFW 和 GLEW 一起使用。我正在使用着色器渲染所有内容，但深度缓冲区似乎不起作用。 我用于 3D 渲染的着色器是:

顶点着色器

#version 410\n
layout(location = 0) in vec3 vertex_position;
layout(location = 1) in vec2 vt
uniform mat4 view, proj, model;
out vec2 texture_coordinates;
void main() {
    texture_coordinates = vt;
    gl_Position = proj * view * model* vec4(vertex_position, 1.0);
};

片段着色器

#version 410\n
in vec2 texture_coordinates;
uniform sampler2D basic_texture;
out vec4 frag_colour;
void main() {
    vec4 texel = texture(basic_texture, vec2(texture_coordinates.x, 1 - texture_coordinates.y));
    frag_colour = texel;
};

我还启用了深度缓冲区和剔除面

glEnable(GL_DEPTH_BUFFER);
glDepthFunc(GL_NEVER);

glEnable(GL_CULL_FACE);
glCullFace(GL_BACK);
glFrontFace(GL_CCW);

这就是它的样子:

• The cube is being renderer first, because it is the first group of the Mesh and then the monkey is always renderer on the front, if I change the order of rendering, the cube is going to be in front

• Another example, you can see the ear of the monkey being renderer in the front

Answer 1

您没有启用深度测试。将 glEnable(GL_DEPTH_BUFFER); 更改为 glEnable(GL_DEPTH_TEST); 使用 glGetError() 可以检测到此错误。