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28 votes

Piping cream through a piping tip

Flip Fluid addon [$] create star (you can use Extra Objects addon) and animate movement under Physics Properties enable Flip Fluid > type Inflow add Cube object and scale it to Domain dimension ...
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  • 27.6k
12 votes
Accepted

How to have multiple soft bodies in a single object?

Final: Overview: For the Soft Body object I've used two Vertex Groups. One for Goal and second one for Springs. I've assigned different weights for selected parts. You can also draw weights in ...
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  • 17.1k
11 votes
Accepted

Soft body to Soft body collision

Use Soft Body and Collision, in that order For each soft body object: Add Soft Body, Add Collision: Empirically, it seems that in the Modifier tab, Collision should be below Soft Body. Adjust the ...
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  • 12.3k
11 votes
Accepted

How to get the physics engine to wraps a string around the moving part of a motor constraint?

The simplest way to simulate rope or string is using a Soft Body simulation on a row of vertices and add thickness with Skin and Subdivision Surface modifiers. You can use the Soft Body Goal to pin ...
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  • 42.2k
11 votes
Accepted

Cloth collision with an object

For rigid body and cloth/soft body simulations there are a number of things you need to be careful of. For the Rigid Body simulation you need to ensure you select the correct 'Shape' for the Rigid ...
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  • 42.2k
10 votes
Accepted

Boids avoid collision?

Create your cage, I have used a box Select your box and enable Edit Mode (Tab) Keep the box selected and go to Mesh > Normals > Flip Normals Then go to the Physics tab, and enable the Collision ...
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  • 398
10 votes
Accepted

What causes this weird collision?

There is a difference between the shape of the mesh, and the shape used for collision detection. Often a mesh is too complex to allow for real-time collision detection. What you "see" is the convex ...
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  • 6,761
9 votes

How to achieve pressing against invisible wall effect facing camera? (animation)

This is not a simulation but a similar effect can be obtained very simply with a shrinkwrap modifier: Set the modifier to "Project" and "Outside" (if orientation faces the model / normal of it ...
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  • 46.2k
9 votes

Piping cream through a piping tip

Being a curve addict here is a solution using bezier objects for this. Create three sets of bezier curves: Section shapes for varying cylinder tips Piped cream objects themselves Taper shape(s) ...
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8 votes
Accepted

make soft bodies stay inside another soft body

This is an interesting problem. On the face of it, embedding one Soft Body object within another should be quite straightforward, but the Soft Body simulations don't interact in quite the correct way ...
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  • 42.2k
8 votes
Accepted

How to make an (open) object behave like rubber when penetrated by another

You could use cloth physics for the deformation part. Pin the corners or edges of the rubber object so it keeps its shape by adding it to a Vertex Group. Let the physics do the rest. Not sure how one ...
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8 votes

Piping cream through a piping tip

To expand on my comment, and if you only need the moment the cream passes through the tip, an easy way to fake it would be to pass a cylinder through a lattice. Start with a cylinder with a few edge ...
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  • 974
7 votes
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Squeezing shape by another one

This is not at all a "physically accurate" simulation by any stretch, but it may be able to approximate the desired effect with a bunch of modifier trickery using a Vertex Weight Proximity and a Cast ...
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7 votes
Accepted

Soft body and collision don't work

The most likely problems are either due to flipped normals, fast moving soft body (moving so fast as to jump through the plane before collision can be detected), or inappropriate Collision settings. ...
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  • 42.2k
7 votes
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Create a shower hose with correct physics

I believe the Softbody Simulation won't give you enough control over the movement. Here is an alternate method using a rigid body simulation. The flickering is caused by the gif compression and not ...
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  • 24.5k
7 votes
Accepted

How to twist a cloth?

Probably not serious answer, but easier to explaine. What about to add one collision object? Example with only one bone (your blend) plus Cylinder as collider, bad timing and probably better to use ...
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  • 27.6k
7 votes
Accepted

Replace object with another on collision

version – Boolean Some kind of illusion can be done with boolean operation. You can start with Geometry Nodes to create grass object ... ... but final "cut" is boolean operation (grass ...
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  • 27.6k
7 votes

How can I make string tighten around a soft object

I just tried out this, and it worked "ok": I just created a cylinder with soft body and some subdivisions. I created a torus as rigid body -> animated. Then i just animated the scale of ...
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  • 35.3k
6 votes
Accepted

Rigid bodies collision of a piston inside a shell

Unexpected results from Rigid Body simulations are often the result of incorrect geometry (such as wrongly oriented normals) or bad collision parameters. It's difficult to say what your specific ...
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  • 42.2k
6 votes
Accepted

Making particles pile up on the floor

First of all, after seeing your scene, increase your particles lifetime so they can actually reach the floor. Then you need to create an actual collision object, because physical objects do only ...
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  • 579
6 votes

Make particles stay on Plane

Opposing Wind Forces Create two equal Wind force fields like in the image below. Set the Strength of both fields to a high value and make sure that there is some falloff. As long as these two forces ...
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  • 3,858
6 votes
Accepted

Trebuchet Rigid Body

First, apply the Scale and Rotation to all objects (Ctrl+A in Object mode). It's important for the physics simulation. Applying the Location is also a good idea for rigid body simulations. Except here ...
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  • 9,934
6 votes
Accepted

How to make a cloth simulation reach its resting neutral shape faster after it is disrupted?

The quickest, easiest way to get cloth to retain its resting shape more is to take advantage of pinning. You're already using pinning on 2 of your verts, at 1.0 weight, but pinning can be used at ...
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  • 15.6k
5 votes

How to render LINE particles in cycles render?

As of Blender 2.82, Cycles only renders Objects and Collections as particles (Blender docs link here) However, here's a solution that might be helpful. You can create an object shaped like a line (a ...
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  • 191
5 votes
Accepted

How do i create low lying smoke (similar to Zootopia), in blender

I've tried really simple smoke in Blender and here is what I've got: Gif with sample You just need to play with smoke temperature and domain height. Sphere is nothing more but smoke collision. ...
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  • 17.1k
5 votes
Accepted

How to ensure accurate rigid body simulation with many small objects

I believe your problem is due to the Collision Sensitivity Margin - although you shoul dalso ensure you always Ctrl+A, 'Apply Scale' on your objects (if you have rescaled them) prior to running any ...
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  • 42.2k
5 votes
Accepted

Soft body friction

You have basically 2 options that influence Friction in Soft Body simulation. Make it 3. Collision object: Here only Damping will influence friction of the simulation. Less Damping = less friction. ...
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  • 17.1k
5 votes
Accepted

How to push a box with physics engine by another object?

Better if you use a copy location constraint on the box by a hand bone. You can set keyframes for the influence, so the character can release it.
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  • 3,439
5 votes
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How can i drop my mesh on floor with rigid body

Ok, I tried a few options and got a fairly stable simulation. Here is the result: Steps: Scale the ground and pen up by 100 (physics simulations work better with larger objects. Also, the floating ...
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  • 381
5 votes
Accepted

How to create a spaceship and force field transition effect

A sci-fi energy shield (force shield, force barrier VFX) is fairly easy to create with Dynamic Paint. You just need ... a subdivided plane that is the Canvas for the Dynamic Paint physics. Set ...
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  • 9,934

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