Transcripts
1. Introduction: Ready to bring your blender
scenes to life with physics. Hi, I'm Jean Avacant,
a three D artist. And in this short class, we'll create a realistic pile of objects using duplication, random transforms, and rigid
body simulation in blender. You will learn how to
duplicate objects quickly, randomize their positions and rotations for a natural look, and set up the rigid
body physics system so your objects
fall realistically. By the end of this class, you'll have a dynamic, chaotic object pile you
can apply to any project. Making your scenes feel alive and playful. Let's get started.
2. Introduction to Rigid Body Physics: Hello, and welcome
to this class. Well, we're going to get
rid of these objects to start doing our animation. First, we're going
to create a plane. This plane will be used as our ground to make the collision
with the other objects. So let's create a cube. Just a simple simple
cube, a simple box. Let's raise it up
a bit, rotate it. Just to be a little not perfect. I'll make this plane
a bit bigger with S. D Z to raise the cube. So let's be sure that you have enough frames
to the animation. I think this would be a small
animation just to the test. So 100 frames it's enough. No need to have a big timeline. Just some frames to show you
the basics should be enough. So in this panel, the physics panel with
the plane selected, I would click and rigid body, and I would change
the type to passive. So this plane is
in the simulation, but nothing is happening
with the plane right now. I'll do the same for the cube. I'll select the cube. Go to the physics panel, click and age body. If I let it in passive, nothing will happen because the two of them are not dynamic. Now I change the type
of the cube to active. I left the other
parameters as they are. And now if I press play, the cube will fall, and it will collide
with the plane. Just that it's enough to
create a small simulation. So I duplicate this cube. I rotate it a bit. I have scale. I can change the mess. I can change the
other parameters. So right now I have two cubes that are falling down and
colliding with the plane. You can play with the
other parameters, the fridge and the
bows, more bow sins, more the object will bounce when it collide with the other
objects in the simulation. Okay, just a little
test so you can see how to start playing
with the rigid body. Nothing too complicated,
just to introduce you to the these parameters and how
to find them in blender. So let's expand this
on the next lesson.
3. Rigid Body x Animation: Okay, so in this lesson, we're going to do something
a little bit more complex. We're starting with the
plane and the cube, as we did in the first lesson. So this cube, I'm going
to move it in here. I scale it a bit so it can
fit the frame. My camera. So I'm going to
create key frames on the transform on the
location in frame one. In frame 12, I'm going to move the cube just a little bit. In here and I'm going to create another set
of creaky frames. So right now, we have
this animation, okay? And if we want to create a rigid body simulation with
that, how this can work? So I select the cube and
click on rigid body, and the less left the cube and active with animated not enable, the simulation will take
over the animation. If I click on animated, the animation will take
over the simulation. So how can we use both? The animation and
the simulation. Well, let's try to create a
keyframe here in frame seven. In here, I disable animated
and I create a keyframe. So now the animation
starts and after that, the simulation take over, and we can have some really
nice results, mixing both
4. Duplicate and Random Transform: Okay, I here, we're going
to start our final project. So this scene, you
are going to have this scene on the project page. So I have a camera, some lights. It's really a simple scene. I have these two objects, they play and they can decay. You can see that if I
disable transparent, we can see the HDR that is liting my scene form
and going to hide it. I hide the light, the camera, just have the Kanzi cane
and the plane visible. So this is just a very
simple object with some color to be
perfect for our tests. Let's play edit with it. So in this chapter, we are going to duplicate it. So I'll show you a very
simple way to duplicate and create random
transformation for an object. So this one, the first
one I raise it to here, with Shift D, I'm going to create first copy
of this object. And with Shift R, I redo the same operation
over and over again. So we have 12 candy canes. Right now they have
exactly the same rotation, so let's fix that. I'll select all the candy canes. I can select them
here on the outliner. And let's go to Object
Transform, randomized transform. So in here, I don't want
to randomize the location, neither the scale,
just the rotation. I can select the three
axis and 180 degrees, and they are all facing
different directions. They are ready for the
simulation on the next lesson.
5. Final Simulation: So now the real fun begins with everything we already know about
the simulation, this lesson will be
really easy for you. So we have our plane, we have our 12 candy canes all facing
in different directions. Let's go to the physics tab, create a rigid body
impassive for the plane. It's on ground. If we select the date here
and click on Rigid Body, it will create only
for the last one. So we're not going to
pass by this menu. We're going to select them
all and go to object is body, add active in here. So now they all have
the Wi body connected. You can play with the
timeline if you need to a more frames for me in
here. This is just fine. So it's already working really nice in a really random way. I can play it again. So they are all interacting
with each other. So it's really, really not complicated to do this
kind of animation. You can use several
different objects. You can use animated meshes. You can use whatever you want. So here, I'm zoomed
in the my camera. And now I can render
this and have a really nice render to show on Sosa Network
or in my demo reel. So I can't wait to see what
you're going to do with this. I hope you are going to
use your own mode as your own scenery the lighting
and everything else.
6. Conclusion: You for completing
this blender class. You now know how to create a dynamic object pile
using duplication, random transforms, and
rigid body physics. I hope you had fun experimenting
and that you'll use this workflow in
your own projects to bring your scenes to life. If you can, please leave
a review and share a render or short animation on the projects and
resources page. It really helps, and I'd
love to see your results. Thank you for watching.
And remember, keep learning, keep creating
and having fun with Blender.
Jean Cavalcante, Compositing Supervisor, Teacher
