Tagged Questions

0
votes
0answers
25 views

Unity3d Gravity script issues

I'm try this script out http://wiki.unity3d.com/index.php/Gravity and I'm having some issues with it (it seemed to work when I tried it with an old version of unity) the first issue is of ...
2
votes
1answer
39 views

Apply force to a specific point on a rigid body

In unity I have a rigid body object and would like to apply force to a specific point. For example say I had a cube, I want to hit just the top right corner so it spins as a result. One idea I had ...
1
vote
1answer
163 views

Strange behavior of RigidBody with gravity and impulse applied

I'm doing some experiments trying to figure out how physics works in Unity. I created a cube mesh with a BoxCollider and a RigidBody. The cuve is laying on a mesh plane with a BoxCollider. I'm ...
1
vote
1answer
196 views

Understanding Unity3d physics: where is the force applied?

I'm trying to understand which is the right way to apply forces to a RigidBody. I noticed that there are AddForce and AddRelativeForce methods, one applied in world space coordinate system meanwhile ...
3
votes
1answer
545 views

How to detect collision in Unity3D without rigid bodies?

The target platform of my game is mobile devices therefore I try to develop it performance oriented. It will be a strategy game so I don't really need physics in it, consequently I did not add ...
9
votes
3answers
286 views

How to simulate pressure with particles?

I'm trying to simulate pressure with a collection of spherical particles in a Unity game I'm building. A couple notes about the problem: The goal is to fill a constantly changing 2d space/void with ...
1
vote
3answers
451 views

How to make a ball fall faster on a ramp?

So, I'm making a ball game. Where you pick up the ball, drop it on a ramp, and it flies off in to blocks. The only problem right now is it falls at a normal speed, then lightly falls off, not nearly ...
2
votes
1answer
248 views

Getting a sphere to roll down a .FBX object Unity3D/C#

I'm working on a little ramp and ball game in Unity, I modeled the ramp outside Unity and exported it to a .FBX file, then I imported the ramp in to Unity. I set up the ball and ramp, both have ...
1
vote
1answer
737 views

How to control a spaceship near a planet in Unity3D?

Right now I have spaceship orbiting a small planet. I'm trying to make an effective control system for that spaceship, but it always end up spinning out of control. After spinning the ship to change ...
5
votes
3answers
3k views

2D character controller in unity (trying to get old-school platformers back)

This days I'm trying to create a 2D character controller with unity (using phisics). I'm fairly new to physic engines and it is really hard to get the control feel I'm looking for. I would be really ...
2
votes
1answer
357 views

Effects of collisons: broken glass, damaged cars, how are they created?

My question is related in particular to achieving the effects of collision in game engine, how is this done? I have searched a bit, read from the internet and went through a few tutorials, and saw ...
1
vote
1answer
868 views

2D physics performance on iPhone/Android using Unity 3D?

I've been looking into making 2D games with Unity. One thing which concerns me is the performance of the physics engine. Since Unity is a 3D game engine I'm going to have to assume it uses a 3D ...
1
vote
1answer
515 views

Should I use animated objects or use the physics engine on iOS scenes with lots of rigidbodies?

I have a scene with lots of houses and other objects. These objects will be bombarded from the sky. How to handle these kind of settings having in mind that you want the physics to be as realistic as ...
6
votes
2answers
2k views

What is your Unity 3D physics engine budget for iOS games?

I'm testing Unity for a game that I'm building, and I've touched its limit. My test scenario: a wanna-be house with 200 elements (cubes rescaled) no textures, box colliders and rigid bodies for each ...
2
votes
1answer
881 views

in Unity3d, how to automatically create fixed joints in a wall of cubes?

I want to create a wall: width 6 cubes height 7 cubes therefore I have 22 cubes on the margins and 20 cubes inside. For each of the margins cubes(except the corners) I have to set 3 fixed joints, ...