Particle Collisions w/ Simulation Nodes

Particle Collisions w/ Simulation Nodes | Blender Tutorial

Рет қаралды 10,156

Күн бұрын

Let's add collision detection to our Simulation Nodes particles!
📺 1. A first look at Simulation Nodes: • Simulation Geometry No...
📺 2. Particle Trails with Simulation Nodes: • Geometry Simulation No...
📺 3. Extrude on Surface: • What's happening to Su...
📺 4. Particles: • Particles w/ Geometry ...
📺 5. Particle Collisions: • Particle Collisions w/...
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0:00 What to expect
0:28 Collision Object
1:15 Reflection Vector
4:32 Collision Detection
6:45 Faces facing incoming particles
10:30 Bounce Amount
13:11 Outro

Пікірлер: 33

@genesis2303 Жыл бұрын

Can't wait for next experimental build 🙌

@3drwny Жыл бұрын

Masterrrrr !! Next episode >> Extrude end point + Collision please

@gabrielmoro3d Жыл бұрын

Cool! I don’t feel like this is user friendly though… If they want to make the simulations as a node-based system it would probably be cooler to do it as they did Geo-Nodes v2, with nodes having clear effects. Like a collision node, particle emission node, kill particle node, etc.

@SalymGuer Жыл бұрын

Man this channel is so so so sooooooooooo under-rated, you bring so much value to the community!

@chrisprenn Жыл бұрын

Thank you so much! I honestly don't understand how other blender channels get the amount of subscribers they do 🤷🏻‍♂️

@SalymGuer Жыл бұрын

@@chrisprenn The difference is that you don't play the youtube game the same way they, you focus on the content more than the packaging which GREAT for the viewer, but not so great for you, But i think that it has a good side, which that your audience is a core audience that follows you for what you create, not stories you tell!

@chrisprenn Жыл бұрын

@@SalymGuer I would still really like that silver play button LOL

@SalymGuer Жыл бұрын

@@chrisprenn i hope you will get it, i mean i'm sure you will

@Unleashed75 Жыл бұрын

So much of this went over my head but so interesting to watch and learn. Keep up the great work

@DesignerNetanel Жыл бұрын

The best explanation on KZfaq by farrrrrrr

@WwAiRtRhIiOnR Жыл бұрын

Great as always! We could use raycasting from the particles in the direction and with the distance of the velocity to detect a collision. This would also provide a kind of a simulation substep as we know after how much of the next step we will collide (travelling with the original velocity until that point and only the remaining fraction with the reflected velocity, while storing the full reflected velocity for the next step).

@chrisprenn Жыл бұрын

cool idea!

@thornnorton5953 8 ай бұрын

I tested that yesterday and it works very easily.

@tapiolahde6987 Жыл бұрын

Fantastic! Thank you for keeping us in the loop! (pun intended) One thing to change is to sample faces instead of points, should give a much more satisfying result! 😀

@BRON3D Жыл бұрын

Thank you very much! Can you figure out how to make the particles detect self collision?

@shmuelisrl Жыл бұрын

you can get perfect particle collisions using raycast with no buffer zone or sub frames.

@josiahgil 2 ай бұрын

Please consider making a tutorial for hair/curves simulations with geometry nodes.

@dontmvme8796 Жыл бұрын

Thanks for your videos! I'm learning a great deal from them ^_^

@totochandelier Жыл бұрын

Epic ! Chris is back 👊

@chrisprenn Жыл бұрын

😁

@jimsmind3894 Жыл бұрын

Very cool, thanks! I tried before this vid to work it out myself, didn't quite manage it.

@johnsmith56920 Жыл бұрын

Hi there, Pity I can’t contact you. Thanks to your wonderful tutorials, I have been able to do something I need. When I am using the “sample nearest” and “sample index” or “sample surface” nodes it doesn’t work for me in 3.6. A bug in the software or, more probably, a misconception from me. So, in order to get the local coordinate system I do the following. I get the normal as you do. Then I choose a vector (1,1,1) and cross product it with the normal. I call it x-axis. Then I cross product this x-axis with the normal and get the y-axis. Normalize the things, translate to the chosen point and we are in business. To avoid errors when the normal is co-linear with (1,1,1) I test the dot product of (1,1,1) and the normal and if it equals 0, I choose the dot product of normal and (2,1,1). One, it works for me and two, I understand it. I’d send you the nodes but as I said I can’t contact you.

@Hubertoser Жыл бұрын

Well nice, but it feels way to complicate. I do not understand the most node stuff. I can do some scatter things, but that's it. I like what i can do with it with the new hair system. ..but this. Is it possible to convert that into a water sim? I mean i play around with points to volume and volume to mesh. Got some waterlike static stuff. Would be nice it could be work like particles.

@RoyMendezCastro 9 ай бұрын

Piensa en hacer un tutorial de simulación de túnel de viento para diferentes modelos. No he visto ni un solo tutorial que lo abarquen, podría ser con simulación de humo y generar lines de velocidad con flechas para visualizarlo mejor. Tiene aplicables de diseño aerodinámico y de análisis de ventilación de diseños de arquitectura.

@flarrossa Жыл бұрын

cool, you're a great teacher :)

@chrisprenn Жыл бұрын

Thank you!

@DuskJockeysApps Жыл бұрын

You have the sample nearest and normals being defined from the nearest points in the point domain, yet you were referring to faces. Shouldnt the sample nearest use faces?

@johnsmith56920 Жыл бұрын

Great. Went like the breeze. This rigmarole about the sample index sample-nearest and all that upsets me. Besides I think it is bad coding (and therefore bad geonodes) habits to have non typed variables. I’d like to have a node with inputs like Object and options like “domain, at index, nearest, and so on” that we choose and the outputs will be “normal, position, and so on” of the connected object. This way we know what is going inside the node from start and we know what we get out of it at a glance. I can’t do it because I don’t know how to have those drop-down lists with geonode.