Make Optimized PCG GRASS in Unreal Engine 5 (Reusable Graph)

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Spawning dense naturalistic grass in your projects using PCG. I also cover how to set up the graph, with parameters, that you can creatively adjust in viewport. We also go into the best settings for optimization.
#unrealengine5 #ue5 #unrealenginetutorial #environmentart #pcg
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[@unrealhabitat]

This is so naturalistic, great job Aziel!

[@azielarts]

Thanks so much! Hope it works for you as well.

[@lindsaybruce1396]

Fantastic! I'm constantly amazed at how fast this technology is moving - but more than that, the generosity of creative individuals like yourself sharing their skills and experience so that us noobs can rapidly evolve our own projects. Thank you Aziel, this is awesome.

[@azielarts]

Absolutely happy to help!! If I can help one person make something awesome as a result that is totally worth it! You all are an awesome community, so it makes it easy.

[@thomaswindfeld728]

Thanx for putting the node names on screen.👍

[@azielarts]

You are welcome, glad it was helpful

[@Mordynak]

To save some nodes. Instead of altering the bounds of the initial seeds, select the distance node and set the "Source Shape" to center.
Also, with the named reroute nodes. They dont need to be connected to anything going out. So long as they have something going in, you can reuse the output anywhere.

[@azielarts]

Awesome tips, thank you !

[@walaahamed7961]

Thank you a lot Aziel, you're really a great Teacher.

[@azielarts]

Thanks so much. I love teaching, glad it comes through.

[@jeremyrikki]

thanks for this men. I have been pulling my hair out trying to figure this out

What good timing. Just saw a framerate drop that concerned me dropping grass in lol.

[@farjfaraj569]

Nice, I'm going to give it a try

[@azielarts]

Awesome! Let me know how it goes

[@farjfaraj569]

@@azielarts sure

[@Luis519RS]

I made a similar setup not to long ago. But I was using spline surfaces and projecting to get the grids on a surface. Worked well even if not doing every point caused some to slightly float.

[@danielbalzer3524]

Thanks for another great tutorial. I have a question to make the grass landscape even cooler 😎 is it possible to apply a global noise using world coordinates to give the grass color variation, or would that be done within the material?

[@azielarts]

Yep absolutely. That would be in the material. You could totally use a world projected grunge or map to tint the color.

[@GabrielCasamasso]

Really Great video! One question, for a very large landscape (4km x 4km), is it ideal to have only one PCG volume to generate everything (grass, rocks, trees, plants, etc)? The way you optimized I didn't knew yet, it's really great, although I think we can't do the same with trees, otherwise they will disappear more noticeably. And about the generation, after generated, everytime the level loads, does it need to generate again? Thank you for the content!!!

[@azielarts]

Hey yeah I am not sure I Would use a small grid size with trees, partitioning will still help because of how it breaks up the pcg volume for large areas, but yeah maybe have a different very large grid size for the trees so you don't see them popping in. I am still researching techniques on this front, maybe have some new videos soon!

[@GabrielCasamasso]

@@azielarts I appreciate brother! Wish you all the best!

[@d74g0n]

I was struggling with the debug view in my version of unreal - my fix was changing the nodes 'Scale Method' from 'extents' to anything else. I used 'relative' cause hey why not.

[@SotiW14]

Amazing!!!

[@azielarts]

Thanks! Hope it is helpful

[@lunardbay]

Thank you for this! How do I make certain Meshes spawn less then the other? For example: more grass but less flowers?

[@Gurkensammler]

Hi, would you say this is better than the Landscape Grass node?
Or are there even more optimized Grass rendering techniques?

[@IWillYeah]

Good question, would like to know too. Its alot simpler and once off with landscape nodes, but it sounds like this is more optimized?

[@Gurkensammler]

​@@IWillYeah Im not sure but I think the Landscape Grass is rendered differently to PCG, but I dont know if its better.

[@espiritogeek]

Thanks!! Your videos are really good! Im sharing this with my team!

[@espiritogeek]

also, is nanite enabled?

[@azielarts]

Awesome! Happy To Help

[@azielarts]

@@espiritogeek Yep nanite on everything

[@unrealversum7729]

It would be cool if you can Set the Parameter like a variable. Get World second... growing grass. Is it possible?

[@Mancotvv]

At the academy, do the videos have Spanish subtitles?

[@JimmyWebs]

The only issue with this is constant hitching when triggering the simulation of the next grid

[@mic007129]

Any plan to create a Pateron? I would support you

[@azielarts]

Thanks so much! I do have a private group you can join if you would like. Kind of my version of Patreon. You can check it out in the description.

[@IWillYeah]

Is this still layer bound like Landscape layer nodes (e.g. grass layer)?

[@crucicrix5011]

Ooooh, it's giving Gravesite Plains. A hint of more Elden Ring to come?

[@azielarts]

Oooh maybe. Actually didn't even realize till you mentioned it. Guess I am in that brain space

[@jeremyrikki]

could you use unbound and set cull distance to say 3600 and get the same optimization?

[@JimmyWebs]

You'll still have an overhead of "actors" (transforms, mesh settings etc) persisting in the world. When using grid runtime setup these "actors" will spawn/despawn everytime you trigger generation in the next grid

[@한승원-x9h]

풀은인정이지 개추밖습니다. 영어몰라서 ㅈㅅ