by Vincent Le Moigne on June 28, 2016.
Smode version: Smode Synth / Studio / Station
In this tutorial you will learn to do a very simple
Simulate a particle system
system with a spritesheet.
We will review the full chain of particles system creation :
-Generator : Create and change basic attributes of a particle system (rate / life / etc.)
-Modifiers : How to change particle size / opacity / etc. over it's age (and position/velocity)
-Fields : How to put
Slow particles down
Apply a random motion to particles
/ etc. Fields
-Renderers : How to use a sprite sheet or any media inside particles system
Download texture files associated to this tutorial
All the textures you'll need for this tutorial are already in the Smode's standard pack :
(To add new images or files, see )
Create a new composition and a simple particles system
Select your current project and create a new comp (
File>New Standalone Compo
. In the dialog box, check
Your composition will automatically been seen as "Untitled compo" and placed under "Unsaved Documents", use
to save your composition where you want.
Now we can start.
Create a particle system with
Now that the newly particles system is created, you can expand it.
Particle system is made of a particle generator
in which you can find every initial particles values (such as rate/speed/etc.), some
Modify a 3D geometry
(to change size/color/rotationsetc.
over time, space or anything else) and a
Displays a 3D geometry
Display point using any kind of 2D Layer as map
change the particles Speed and Life time
by selecting the generator (note: to write 2 seconds faster you can type only "2." inside the life time, "2.."for 2 minutes and "2..." for 2 hours, and at last only "2" for 2 frames).
change the emitter
(red arrow) and change it from point emitter to sphere emitter. You can change that last parameter either in the parameter's editor or in the Smode tree. How wonderful is that ?
Now let's change sphere emiter size by selecting it and put it's radius to 1 m :
There already is a modifier embedded with the particles system creation, the "
Define points color, scale and rotation functions
.This modifier allows you to modify every attributes of a particle in the same time.
By default it is it's
is set as "
" (blue arrow on the screenshot below) wich mean that every parameter will act accordingly to the age of the particle.
When you select the modifier, the
The editor allows you to manipulate every Function in Smode
will appear below the viewport, here you can set every parameters with keyframes.
Let's change the scale
of the particles
over their age
. To do so in this modifier, put the cursor (green circle) over the last value in 100% intensity, on the left of the editor the current value will be displayed (red circle) and the keyframe column will show you whether or not a key is put on the track in the current time. Let's turn the scale to "2".
Now it means that a particle will have a scale of 1 at it's birth and 2 when it die.
The second way to modify a particle parameter is to put another modifier. Let's choose this one so particles will die quietly :
Right Click->Modifiers->Attributes->Opacity->ease out
This is actually a preset of the opacity modifier, it mean that particle opacity over it's age will act accordingly to the displayed curve.
almost every modifier you have in the modifier menu can be applied to particles
. If it does not work, a little red cross will appear next to it and tell you why.
Let's add force fields
Add a Turbulence field with
Right Click -> Fields -> Turbulence
advanced mode (ALT+A)
And set it up with a
of 3 and press play on the Transport.
Note that as on modifiers,
every kind of mask can be applied over a Field
Put a sprite sheet
- Now take the "Explosion 20x1.png" from the standard pack and drag and drop it inside the Sprite Points renderer, you can delete the "Dot WHite b.png" in the same time.
This spritesheet consist of 20 images on one row. So 20 sprites per row and 1 sprite per column.
Let's configure the sprites points renderer
like that by selecting it and modifying theses values inside the parameters editor
for the spritesheet to be animated
in function of the age of the particle (red arrow on the screenshot below).
Note that in this example every sprite will be displayed in function of particles Age but the "sprites selector" can be set in many different ways.
- And to adjust, in this example I changed the base size of the sprites from 0.1 to 0.5m
- Now you can change the
blending mode of the Sprite Points
renderer, In this example I put it in
Yeah, here is the basic, not very pretty but at least now you know how particle system work, you can try everything by yourself. The example already embedded in Smode examples compositions is a little bit more advanced but made from the same root.