I have been thinking about this for a while. I know we can write to our own textures with setpixels, but i also know this is a really slow method that would start dropping framerates below 30 just being there. (Due to the sync with the videocard that happens after.)
So either i am using the wrong method, or doing it wrong. But i cannot find a proper way to write my own vram to a texture or directly to a camera.
Long story short, if i were to build like an emulator inside unity, and i wanted this emulator to run on either camera pixel by pixel or just on a texture inside unity. How would i get this going without slowing my framerate to a crawl on most devices?
Are shaders an option? If so, please point me in a direction since i never made those on my own just yet.