OpenGL - reusing a texture id

Question

I have a scenario where I need to change texture parameters and load a new data. Can I generate a texture id ( glGenTextures ) only once and then call for a user request the following code:

glBindTexture(GL_TEXTURE_2D, texId);
glTexImage2D(GL_TEXTURE_2D, 0, img.internalformat, img.width, img.height, 0, img.format, GL_UNSIGNED_BYTE, img.buf);

Should I delete and generate a new texture id before calling subsequent glTexImage2D ?

Answer 1

Yes! If i understood your question correctly you can call glDeleteTextures , delete the texture and reuse the name. Here is more information:

https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glDeleteTextures.xml