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Questions tagged [collision]

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1answer
27 views

How to make an object only collides with the terrain?

I have a question to the the collision in the Blender Game Engine. I made an character (a simple sphere). This character is on layer 2. A empty object is on layer 1. This empty spawns every 5 seconds ...
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0answers
22 views

Make Path Dangle and Collide for hair

I have hair particles following a path. This is for a lengthy animation project so chose to do this to make it easier than combing hair back to where is belongs. Picture below. I want one end of the ...
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1answer
37 views

Blender Collision Simulation Data

Is it possible to access data from a collision, such as point of collision and impact force? I am trying to simulate a "drop test" in Blender and cannot figure out how to access the information. As of ...
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3answers
46 views

Soft body not colliding with each other

I am trying to make an animation using soft bodies, but the problem is that they are passing through each other. I have turned on Collision in the physics panel. Thanks. Blend File
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0answers
16 views

Intersecting problem with rigid bodies

There is a mechanism shown in the figure_1; a rotating gear interacts with a grip. There is no problem (figure_2) until I change the grip shape with the same setting as previous, where the model ...
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1answer
37 views

Complex Collision Boxes

I'm trying to get a ball to go through in between the cup gear things shown in the screenshot below. It seems that the collision box does not consider the cups. Yes, the ball fits and they are ...
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0answers
8 views

How do I influence the distance particles have to a collision object?

I have a cube, and a particle mesh inside the cube which emmits boid particles. However the particles don't bounce off the inside wall of the cube but keep several cm distance to it. I would like ...
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0answers
52 views

How to create a soft body simulation like this…?

I'm making the switch from Cinema 4D to Blender and I've got some problems with the soft-body simulation. I want to create an image like this: How do I achieve this look? Let's say I have a cube and ...
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0answers
20 views

Boid Particles come out above the mesh

I'm trying to keep the boid particles confined in between the double wall of the house (behold image) but they keep coming out above or next to the plane itself. When I move the plane away from the ...
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0answers
31 views

How to animate spiral cutting / milling?

I have a circular saw cutter in a tube. The cutter is supposed to cut a gap into the metal tube by cutting in a spiral motion. Initially I wanted to make it fancy and show the material that is cut ...
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0answers
17 views

“Whip” falling through handle. Collision + Soft Body

I have a four bezier Circle tied to a path that twists to form a rope and a separate object of the handle. The rope runs in the middle of it. I've changed ball weight etc and added the handle as a ...
1
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1answer
54 views

Ranining Cubes to form shape

This is the .blend file I'm working with I created this model with a processing sketch that translated colors into volumes. Now I'd like to have a rain of cubes, having the cubes to land in their ...
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1answer
16 views

Apply collision event only on a specific mesh

I've been using Blender Cycle render for over an year and never done any game engine... This morning I looked a tutorial how to make an object move and after that I wanted to experiment a bit. I did ...
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0answers
23 views

Unpredictable behavior when shooting a sphere on a cube

I have a player object that can shoot little sphere objects and simple blocks as enemies. When a sphere hits an enemy it sends a message to the enemy to dissapear and spawn a new one (cube) with the ...
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0answers
21 views

How to make one object take the shape of another only where they touch

This might be a duplicate question but I did not know the vocabulary to search for what I need. I need to have two object to have perfect interface with each other (like a Boolean union) but where ...
5
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2answers
255 views

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

I want to push a box by an animated character in Blender 2.8. First I tried to animate the box by keyframes but this looks very unnatural. I think this will look ...
3
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1answer
95 views

Soft body friction

I want to create in blender a scene like this one, attached here. I have a past in cinema 4d, there was very easy to create this. I tried in blender in this way: I create a soft body sphere and a ...
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0answers
28 views

animating a collision with an object following a path

I have this idea that looks pretty simple in my head, but turned out to be pretty hard to animate. I've got this animated bee that is flying along a path, and i want it to collide into an object, ...
1
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1answer
44 views

How do I make a molecular “cloth” which I can drop some objects onto?

Basically what I want to try to create is similar to this: https://www.youtube.com/watch?v=UhuOsg06oOs&list=LLl-SOEftSFSK6xy1vylYL8g&index=8&t=0s I've downloaded molecular and cube ...
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0answers
65 views

Collision phisycs in cycles using metaball particles

I am trying to make metaball particles collide with an object. Using the collide feature in the physics tab in blender 2.8. It is looking great in the render preview window but whenever I render it, ...
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0answers
65 views

2.8 Beta Walk/Fly Mode No Wall Collisions?

Is there any way to add collision to walls when in walking mode. i'm trying to explore my scene without walking through walls and falling off into the void. yeah i know there's fly mode also, but ...
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0answers
26 views

How to get collided objects? (Python)

I want to know what objects are collided. Is it possible to do with existing Blender’s Python API?
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0answers
26 views

Collision in .obj file

I am completely new to Blender and I have never done anything with 3D. Currently I have some .obj files and I want to understand them. I downloaded source code for ...
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0answers
69 views

Enable collisions with targets and objects (Animation Nodes)

So I'm using animation nodes to generate a nice sinusoid as pictured below. See Omar's answer here for more information. I want this sinusoid to collide with the cube face and "bounce" off. If I ...
1
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1answer
83 views

Simulating an egg on a conveyor belt getting smashed

I have a short animation of an egg shape (solid w/o liquid) and the egg is on a conveyor belt (follows directional movement of belt via driver) then was supposed to have the egg get smashed by a large ...
2
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0answers
40 views

Trigger particle emission on collision with another particle system

I have a particle system A whose particles have been already emitted. Now when these particles collide with Particle Emitter B, I want B to start emitting particles. How should I go about doing this?...
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0answers
44 views

How to make an object change its color when it collides with another?

I think the title explains it well. I want to make two objects collide and change the color of one of them. How can I do this using physics, in cycles? Thanks.
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0answers
56 views

Fluid simulation obstacle collision

I am playing around with a fluid simulation however as you an see in the picture the liquid is not touching the bottom of the pool. Instead if collides at the height of the pool border … I created the ...
3
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1answer
128 views

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

So uh i've got this problem with a penetrating object and another object that serves as something like a condom if you will So what I want, is for the penetrating object to not deform while moving ...
3
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2answers
166 views

Glowing/outline effect when particle and object are colliding

How to do a glow/outline of collision effect when particles (objects with same size in a group) are entering other object? For example when a small box particle is falling into a plane (will fall ...
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0answers
82 views

How do you avoid dependency cycle between two soft bodies?

How do you setup two softbodies with collisions without getting a dependency cycle ? A depends on B through Softbody Collision B depends on A through Softbody Collision Those two objects interact ...
0
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1answer
22 views

game shield in blender game engine

I am trying to make a shield that will end enemies when they come in contact with the shield. The problem is getting the shield to spawn on the character while he is moving. Any ideas? Thank u!
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0answers
63 views

How can I realize “sticky” collision, i.e. that objects connect as soon as they touch?

I'm fairly new to Blender (great piece of software btw), so please bare with me. I'd like to have multiple spheres (up to 50), which move randomly in space and as soon as two spheres collide they ...
1
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1answer
368 views

Rigid Body Mesh Collisions: Objects falling through each other

I have a scene that I need to run simulations on, and quite a few of the collision shapes need to be set to mesh. This works fine for most objects but there are some that are acting weird, basically ...
3
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0answers
44 views

Collision Object for particle system

The hair you see in the picture is created with a particle system on a vertex group. The hat is a separate object. Is there any way to make the hat a collision object so that the hair stops when it ...
2
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0answers
85 views

Smoke/Liquid Ignoring collision object during simulation

I’m fairly new to Blender and modeling in general, and I’m running into trouble with running simulations (smoke, fire, liquid, etc). I’m trying to produce simulations to be used in a projection ...
0
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1answer
41 views

Boid Particle System Collison Objects

I'm looking for my boid particles to not intersect with my collison objects. I already changed the mesh to collision, and there are tiny areas where the dragonflies still pass through the mesh, as you ...
1
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1answer
42 views

How to exclude smoke from collision mesh

I am trying to achieve an effect where I drive an invisible cone through a simple smoke domain, which clears the smoke from the cone-shaped region. I'm planning to make the cone invisible by disabling ...
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0answers
42 views

Quick question about smoke collision

I'm currently making a low poly desert island for college, which has a volcano and smoke that emits from the top. I've set up a cone at very top facing down, which works as a collider, so the smoke ...
1
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1answer
32 views

Soft body collisions give missing cache error

Sounds like I'm having the same issue as this question (Missing cache error) but since that has no answers, I figured I'd post this question with a working example of my issue. I have a bunch of ...
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0answers
35 views

Is it possible to have solid objects in pose mode?

I want to create a run cycle and have my characters feet stop and bend on the ground, which is just a plane so that its perfectly flat footed, among other reasons. Is it possible to set this collision ...
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1answer
260 views

Collision detection during active modelling

I'm a newbie in Blender and I'm scripting in Python a routine that arranges irregular bodies according to a placement algorithm (Using AI and self-learning methods). The problem I have so far is that ...
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0answers
46 views

Missing cache error

My simulation runs at 1 FPS and I noticed my console is spammed by "missing cache error". If I opened my blend file : everything's OK. If I edit a mesh (enter and exit edit mode with no change) : 1 ...
1
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2answers
348 views

Smoke constrained by objects

I have a smoke emitter that is under a rocket (but not touching anything). It emits smoke, but the smoke just sits there in a bubble. It doesn't flow. If I move the emitter away from the collision ...
0
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1answer
42 views

Proper deformation of body mesh?

i've model a body rigg it and weight paint it and now that i want to make poses with it i realize that i have a few problems, but the real problem is that when two part of the body clash together one ...
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0answers
38 views

How make hand touch without going through?

I want to make two hand touch each other without than going through one another.
2
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1answer
29 views

Is there anyway to make particles have an influence area around them that will let them collide, without having to turn them into rigid bodies?

I want to make a particle simulation, however, is there any way to set a sphere as a child and then set an "influence radius" around each particle as like a collision box? I know you can set them to ...
0
votes
1answer
101 views

Collision logic brick not detecting collision in BGE

I am making a game in the BGE and I don't want my character going off the platform. I have is set to quit the game when that happens (I am going to change that later), and the walls let him pass right ...
1
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1answer
59 views

How do I achieve a bending effect with the collision of two rectangles?

I am trying my best to re-word the problem I am having. I have 3 objects bounded on top of each other. I will call that square 1. I have duplicated square 1. The duplicated object is named square 2. ...
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0answers
83 views

Collision detection for wheels for detecting vehicle air when using vehicle simulator

I'm using the vehicle constraint to simulate a vehicle in Blender Game. The documentation instructs to set the collision on the wheels to None. Hence The collision sensor doesn't work with the wheels....