May 28th, 2021 Livestream Q&A: Could you quickly describe what instancing means?

May 28th, 2021 Livestream

Q&A: Could you quickly describe what instancing means?

https://youtube.com/embed/dyqOMITwLsY?autoplay=1&start=1065&end=1165

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could you just like uh quickly uh describe like what instancing means and like when we talk about that so that people are aware of what the implication of an instance in a game is when you're rendering stuff so an instance is you have several way of rendering items so you can just say like okay this isn't rock just render this one single rock here which is fine you render the rock uh with instancing basically you tell like okay there are 20 rocks here and it can do the task 20 times in sequence which is really fast because it doesn't need to read the data again gpus are really fast they're really bad at switching tasks right so it's really fast to render 20 times the same object in sequence knowing it's the same thing then to render 20 times the same object without knowing it's the same thing in the sequence right so it essentially batches up the things you want to render to when you're telling the gpu to render them essentially yeah and then unreal has their own implementation on top of that which is an hierarchically uh based rendering which does the best of both worlds so it has all the instances and it prepares clusters for themselves uh which also allow loading and curling and all the optimizations normal instances cannot do so that's like the best ideal case for instancing um we use it on absolutely everything yeah all the walls are done that way everything except for this little bastard

[Laughter]

so yes cool so the holograms now use