Procedural Generation (PCG) under 5 mins in Unreal Engine 5!

I just made this procedural bed of rocks that generates a whole new look every single time I move it check it out it gives me an infinite amount of iterations to choose from and I did it using the 5.2 procedural generation framework how long did the setup take five minutes this was my Egyptian desert scene before and here it is after beautiful let me show you how I did it first things first we download some Mega scan rocks and rock grounds and make sure they were Nani that is crucial because when you want to spawn a hundred thousand rocks nanite is the only way you will survive or else your PC will just explode and you will die no but in all seriousness nanite allows you to change the level of detail of the Rocks as you get further away which is why Unreal Engine 5 is so powerful because you can literally have hundreds of thousands of rocks far away and they're only being rendered with little amount of geometry because of nanite now let's move on I made sure the procedural framework plugin was enabled and then I added a PCG graph to my content browser drag the PCG to my scene and scale it up within the PCG graph that's where I needed to say hey can you spawn points on the surface of this landscape I did that with a surface sampler node then by hitting debug I check to see where those points are spawned I realized they were not spawning on the floor and I don't want my rocks floating in the air so I switched the input to landscape and it was fixed at this point we need to tell under real which rocks we want to use so we added a static mesh spawner note and beta rocks as input by this time we already have a procedural bed of rocks but it doesn't look so good because they're repetitive and nothing in nature is repetitive think about we need random wait I'm Not In Focus Randomness the rotation of trees the scale of the trees the color of the Rocks the texture of the Moss that is on the Rocks everything you see in nature is random and that is what makes nature look so good and complex and detailed and so if you want to achieve that look you're going to make sure you have that Randomness in your scene let's get it that's where I added a transform Point note and played around with rotate offset and scale to find the look we wanted to make sure the Rocks spawn randomly and we're done really we're actually done all we got to do is move the volume and it generates a whole new look every single time giving us infinite amount of iterations to choose from even at the slope of the the hill now that was simple but if you want to take it to the next level here's how you do it to make it look really good go and duplicate your notes and create even more variations within the blueprint and use different rock formation comment them out as smaller rocks and bigger rocks so you don't get confused you can also go ahead and do entirely new PCG graphs then you can layer all of these in together to create that super complex look that we see in nature that is realism now there are a couple of other tricks that you can use so if you've been staying up until this part of the video I want to say thanks make sure you hit that subscribe button if you guys want to see more like this but let's move on so first tip I recommend that you check out the modeling Tab and then go to the lattice tool and use that to actually deform your rock ground formations so that they're not all a flat layer because what that does is when you try to put it on a slope you might actually see the edges sticking out second tip if your formations don't look that real make sure you keep playing with the transform node and also the surface sampler node had the point section use that to actually control the number of formations you're adding in to that volume if you really want to add in your touch your spice into that whole sand make it as real and as good as possible have your own centerpiece that is not procedural to make sure it stands out against all of the randomly generated formations and that's how actually Unreal Engine did it when they were presenting this entire new technology and when I say entire new technology guys I'm not saying that no other software has done this before blender has geometry notes and it essentially does the same thing but the only thing that makes this so cool and different is the fact that you're using quixel assets that are already there with nanite which means you can have millions of these rocks and still render it in real time now all of this is just a small part of our huge ambitious project of replicating a real-life Egyptian tomb and that is King Tut's tomb from Egypt now what our goal is is to take this to the next level by adding in more realism and creating cinematic trailers taking it to VR adding in metal humans so if you're curious about this whole project make sure you go ahead and check out our previous videos of how we started this scene from scratch and also come back every day because we do upload daily and we're going to be showing you our upcoming processes right here on this YouTube channel thank you guys and see you tomorrow

Channel: Bad Decisions Studio

Views: 49,623

Keywords: bad decisions studio, daily vlog, vlog, bad decisions vlog, #youtubevlog, vlogger, vloglife, startup, vancouver, canada

Id: MF8ZMdOX7pU

Length: 4min 43sec (283 seconds)

Published: Sun May 07 2023