I have a pre-render to generate a texture of an object without drawable culling, after that, I'm going to cull various drawables in the object to let its insides peek thru, I'll be blending the old exterior (via texture) with the interior view of the object that shows up when the drawables are culled. (Think of it like a transporter effect in Star Trek where the surfaces are phasing in and out.)
I only need to generate the original texture once, and then blend it with a procession of new frames where different faces are coming and going. (Unless of course, someone rotates the view.) What is the best way to do this? Do I need to just let it pre-render everytime, then render the whole image with blending or is there some way to prevent the unculled image from rendering repeatedly? Or am I worrying about nothing in the first place?
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