Hi I am working on a library which uses openGL 2.0. On iOS the function texture2DLod is available in the fragment shader through the extension GL_EXT_shader_texture_lod, but this extension is not supported in android.
I am new to openGL, so was curious that is there any difference in the return value of texture2DLod when used in vertex and fragment shader?
Is there any alternative or a way to implement the function in fragment shader?