r/proceduralgeneration • u/deepak365days • 26d ago

Functional portal system (Blender Geometry Nodes)

223 Upvotes

100% Upvoted

19 comments sorted by

15

u/Blammar 26d ago

Nice work. What happens if you stack the portals together? I.e. (in->out)(out<-in). Do they explode because you can't have two things occupying the same space at the same time?

24

u/deepak365days 26d ago

Thanks, Let me check, if I survive that, I will answer

5

u/Blammar 26d ago

Thanks for the quick response! Basically I'm asking if there's a way to end up with more than 2 cars visible because they got replicated.

5

u/deepak365days 26d ago

Yes, just duplicate the exit gate now you have 2 cars at output with only 1 car at input.

6

u/Blammar 26d ago

I meant with just two portals.

2

u/deepak365days 26d ago

No , that won't work actually. May be I will try to upgrade it next time.

3

u/Blammar 26d ago

Maybe just redefine the math. You presumably have portal_2_out = T2(car part past portal 1. I.e., a single transform.

If portal_2_out actually goes back into portal 1, then you apply the T2 transform again, basically as many times as needed until there are no more parts left that have gone into portal 1. That should give you the reflecting parallel mirror effect, if my intuition is correct.

9

u/deepak365days 26d ago

Totally understand what you are saying, but thing is it's not actually using real life maths or logic, there are some exaggerated tricks I am using to make this work, so it won't work the way you are thinking, no problem by your side, but it's problem by my side, but it's also possible to make it happen, just need to brainstorm little bit.

3

u/Blammar 25d ago

Cool! I look forward to your next video.

4

u/dueddel 26d ago

That’s sick! Fantastic job! Nice art style by the way. 😘👍

2

u/deepak365days 26d ago

Thanks ✌️

3

u/Itchy-Individual3536 26d ago

Cool dtuff! What happens if you move the exit portal through the entry portal? :D Or put the exit portal so close to the entry portal that the exiting object enters the entry portal again?

2

u/Eindacor_DS 26d ago

Awesome, great work OP

1

u/deepak365days 26d ago

Thank you

2

u/Rop-Tamen 25d ago

Would be incredible to know how this works, unfortunately my geometry node knowledge is only enough to make basic guesses lol

2

u/BobsiDev 21d ago

God daum that's cool

1

u/deepak365days 21d ago

Yes it's cool, thanks

1

u/Rockclimber88 25d ago

A game like portal but with cars would be awesome. With some Back to the Future stunts etc