Yes, just load the texture again with LoadTexture. If the texture has already been loaded with the same flags either with LoadTexture, or by being attached to a model, all you'll receive is a pointer to the existing texture (which is attached to the model already).
Be warned - if you change the texture flags in LoadTexture itself, or use TextureFilter, then two textures will exist instead of one (even if you only use flag 256 on one texture but not on the other).
Keep an eye on AvailVidMem() when using this trick, just to make sure you're getting it right.
Be warned - if you change the texture flags in LoadTexture itself, or use TextureFilter, then two textures will exist instead of one (even if you only use flag 256 on one texture but not on the other).
Keep an eye on AvailVidMem() when using this trick, just to make sure you're getting it right.