Blender Tutorial – How to Create Dust Particles in Eevee

hello everyone and welcome back to
another blender made easy tutorial today we’re going to be creating dust
particles using a blender in the last tutorial we created this image right
here and at the end of it we use Photoshop to create the dust particles
and I know some people don’t have Photoshop so I thought that I would try
to figure out how to do it in blender and it’s actually pretty simple the
first thing that we’re going to do is scale up this cube a little bit and I’ll
drag it up so it’s sitting right on the grid floor and then I’ll press s and Y
and scale along the Y that’s actually a little too tall so I’ll scale that down
and basically what you want to do is add in a bunch of particles inside this cube
to do that we’re gonna go over to the particle system and then click new on
that change the type over to hair and if we press Z and go into wireframe you’ll
notice that nothing is inside that’s because we need to open up the source
and change the omit from faces over to volume now currently you don’t really
see anything that’s because we need to add in another object so press shift a
will add in an icosphere this is going to be the particle so select icosphere
and in this panel right here I’m gonna set the subdivisions down to 1 because
there’s going to be quite a lot of particles I don’t want the scene to lag
so setting the subdivisions to 1 will work perfectly fine and then I’ll just
drag it over to the right I also want to scale this inwards just a little bit to
make it a little thin and what you could do is morph this a little bit so maybe
I’ll select this vertice drag it this way just so it’s not completely
spherical something like that and if you wanted to you can create multiple of
these and put them into a new collection but for the sake of this tutorial
we’ll just use this one and I’ll scale it down even more
select your cube and then go down to the render settings open up the render and
select the render as path over to object and then select your object which is the
icosphere and there we can see all of our icospheres are now inside our cube
currently they’re way too big so I’m going to set the size all the way
.01 and the random size up to one I want there to be a lot of randomness so
said that all the way up to one also turn on advance so we can change the
rotation open up the rotation and make sure that is checked and now let’s
position the camera so go into front view by pressing one on your number pad
ctrl alt 0 to snap the camera into place then you can select it and just position
it right inside the cube make sure it’s inside just like that now this is a
little bit of a tight perspective and I do want to see more of the particles so
go over to your camera settings and I’ll just drag this down to about 32 or so so
we just get more of a more of a perspective angle like this and there we
go so now let’s go back over to the
settings go over to the particle system settings now to give every single
particle a little bit of randomness what I’m gonna do is zoom in change the
orientation as normal and then just turn up the randomness you can also turn up
the phase and give the randomness there as well and every single particle will
have a random rotation and that looks pretty good
alright the particle system is done now before we get on to the material for our
particles I do want to set up a little bit of volume and some lighting to
really show off the particles so to do that with the cube selected I’m gonna go
over to the material tab and then go over to the volume settings and set the
volume to the principle that volume shader right here you can go ahead and
remove this you don’t really need that principal shader and for the density I’m
gonna set this to 0.14 once we do that we can press Z and go into rendered view
and we can see we have some volume in our scene now I am using a V right here
so make sure that’s the render engine that you’re using and another thing that
I’ll do is change the world background all the way to black and then select
your point land which is right here so I like that point lamp and then I’m gonna
move it over to the left right here go over to the lamp settings and I’m gonna
set the power of this to B let’s go a 300
and then for the color let’s to give it a nice blue color something like this
and then I’m gonna press shifty and I’ll set it to a spot lamp and I’ll rotate
the spot lamp this way and then I’ll set the size a little bit lower something
like that at 29 and then I’ll set the strength of this to 1000 let’s go into
camera view and see what this looks like so press 0 then press Z and go into
rendered view and you can toggle overlays and so here is what our scene
is looking like so far now to really get some depth of field and some cool
effects let’s go ahead and select the camera turn on depth of field now we
need to set an object in the middle of our scene to have our camera focus on
that so go back into solid view and then I’ll press shift a we’ll add in an empty
object right here and then I’ll just position this in the middle of the scene
so go into wireframe and just position it let’s go to camera view something
like this or so there we go and now we’ll select our camera go over
to the depth of field and the focus object will be that empty make sure the
f-stop is quite low like a value of 0.2 we’ll see what that looks like in the
rendered view and here we can see that’s looking pretty cool
I do want there to be a little bit more particles though so I’ll go over to the
particle system right here and I’ll set the number to 2000
let’s go back into toggle overlays and we can see quite a lot of particles now
in our scene and is starting to look pretty cool alright so basically what we
need to do for the material for the particle is all select my particle right
here select that echo sphere we’ll go back into camera view and then click on
new now currently you can see some shadows on the particles and it’s okay
though it looks it looks decent but I don’t really want to see any shadows
right there I want it to just be kind of just a speck in in the 3d space so what
I’m gonna do is click new on the material and for the emission I’ll just
drag that up just slightly you don’t want to go all the way up to white
because that will look a little bit but just slightly and that will help
with the the shadow and then for the base color you can set this to be
whatever color theme that you want so if you have like a scene that has a lot of
orange or a lot of reds you can set that to be over here or in this case since we
have like a little bit of blue lighting I might set the particle color to be a
little bit of a blue color something like that alright so there we go that is
basically it for this tutorial now you can use this technique in any render
that you have for example the DNA scene that we created in the last tutorial all
you would have to do is select both the cube and the ecosphere
hit ctrl C and then go over to your other blend file and then hit control V
to paste in those objects scale up the object a little bit and then position it
to where you can see it in the camera view you might need to add a little bit
more particles to the cube depending on the size of your scene and then also
make sure you turn off show emitter in the particle system to hide the cube so
you don’t see it in the render you will still see the particles though so don’t
worry after you’ve done all that your scene will look something like this now
before we end this tutorial let’s do a quick render for our scene I’m gonna
turn on the volumetrics and set the tile size to be 4 pixels just so that the
volume is a little bit better and then I’ll turn on volumetric shadows also in
the color management I’m just gonna give this a little bit more contrast we’ll go
medium contrast just like there and then I’ll just go up to render and click on
render image alright and there we go we have dust particles floating in the air
so that’s gonna be it for this tutorial thank you for watching and like I said
you can use this technique in any of your scenes to really give a cool effect
thanks again for watching make sure you like comment and subscribe for more
tutorials and I’ll see you guys in the next one


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