How to change the Quality of texture in run time ?

Hi, I have 100 textures in my project. if i make all textures type as GUI , build size will become very high.

At starting i will kept all the textures type as Normal and when am loading the textures on a screen, i want to change the texture type as GUI.

How it is possible ? can u suggest me ?

You can’t change it during a real game build’s runtime as there’s no longer a untouched source texture to work from.

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