OpenGL texture gets worse when moving camera away from object

Question

The texture gets generally worse more I move the camera away from the object. I need to be really close to the object for the texture to be fine. Does anyone know what would cause it and how to fix it?

this is how I load the texture

stbi_set_flip_vertically_on_load(1);
m_Local_buffer = stbi_load(path.c_str(), &m_width, &m_height, &m_bpp, 4);

glGenTextures(1, &m_rendererID);
glBindTexture(GL_TEXTURE_2D, m_rendererID);

glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, m_width, m_height, 0, GL_RGBA, GL_UNSIGNED_BYTE, m_Local_buffer);
glGenerateMipmap(GL_TEXTURE_2D);

glBindTexture(GL_TEXTURE_2D, 0);

image of the bad texture

Edit: updated the code.

Answer 1

Problem was that the faces in the model were too close to each other which caused Z-fighting and that caused flickering. It was not caused by texture or my or by OpenGL code like I originally assumed. When I changed the model that had not this issue it worked correctly without any fliggering.

Answer 2

For mipmapping you have to use one of the mipmap minifying filters. e.g.: GL_LINEAR_MIPMAP_LINEAR (see glTexParameter):

glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);

glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);