无法手动设置每个纹理 mipmap 级别

我无法在opengl中手动设置mipmap级别。这不会引发错误，但不显示纹理。取消注释 glGenerateMipmap(GL_TEXTURE_2D( 有效(意味着它可以工作，mipmap 级别不是由我设置的(。

我的 mipmap 级别似乎是完整的，因为最后一个级别 (12( 是 1x1 图像。 知道我在这里可能做错了什么吗？

Texture::Texture(const std::string texture_levels[]) 
: m_FilePath(texture_levels[0]), m_LocalBuffer(nullptr), m_Width(0), m_Height(0), m_BPP(0)
{
stbi_set_flip_vertically_on_load(1);
GLCall(glGenTextures(1, &m_RendererID));
GLCall(glBindTexture(GL_TEXTURE_2D, m_RendererID));
GLCall(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_BASE_LEVEL, 0));
GLCall(glTexParameteri(GL_TEXTURE_2D, G_TEXTURE_MAX_LEVEL, 12));
for (int i = 0; i < 13; i++) {
m_LocalBuffer = stbi_load(texture_levels[i].c_str(), &m_Width, &m_Height, &m_BPP, 4);
GLCall(glTexImage2D(GL_TEXTURE_2D, i, GL_RGBA8, m_Width, m_Height, 0, GL_RGBA, GL_UNSIGNED_BYTE, m_LocalBuffer));
}
GLCall(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR));
GLCall(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR));
GLCall(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE));
GLCall(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE));
// glGenerateMipmap(GL_TEXTURE_2D);
GLCall(glBindTexture(GL_TEXTURE_2D, 0));
if (m_LocalBuffer)
stbi_image_free(m_LocalBuffer);
}

Texture::~Texture()
{
GLCall(glDeleteTextures(1, &m_RendererID));
}
void Texture::Bind(unsigned int slot) const
{
GLCall(glActiveTexture(GL_TEXTURE0 + slot));
GLCall(glBindTexture(GL_TEXTURE_2D, m_RendererID));
}
void Texture::Unbind()
{
GLCall(glBindTexture(GL_TEXTURE_2D, 0));
}

在主.cpp：

std::string texture_levels[] =
{
"res/textures/istanbul/01.png",
"res/textures/istanbul/02.png",
"res/textures/istanbul/03.png",
"res/textures/istanbul/04.png",
"res/textures/istanbul/05.png",
"res/textures/istanbul/06.png",
"res/textures/istanbul/07.png",
"res/textures/istanbul/08.png",
"res/textures/istanbul/09.png",
"res/textures/istanbul/10.png",
"res/textures/istanbul/11.png",
"res/textures/istanbul/12.png",
"res/textures/istanbul/13.png"
};

Texture texture(texture_levels);
texture.Bind();