I am trying to add a sphere collider to my player and generate overlap events from it. However, once I add the collider and position it correctly no overlap events happen is there a setting that I am missing after I add the collider to the mesh?
Here is the macro I am using to create the mesh - I set the hidden in game to false to make sure the collider was being created and placed properly
Here is where I am calling the macro
And here are the two overlap event that don’t trigger once the collider is added. All of this exists in the player blueprint.
I am sure I am just missing some settings that I need to turn on once I create the collider but I don’t know which one. Thank you for any help!
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I decided to make a 2D game for the PC on Unity, where the character moves around the stage. But I have a problem with the correct use of Rigid Body 2D.
In this picture you can see my playing field.
https://i.stack.imgur.com/PBhwx.png
I want my character to move around the entire field and when colliding with objects does not go through them.
My field is Tilemap, but I hung the Box Collider on the Grid. Boxing collider surrounds the grid.
But when I use Rigid Body and turn on the game, the object falls through. And if you remove the Rigid Body, then it just goes through objects.
I tried to use different types of Rigid Body, when using kinematic and static, sprite goes through houses.
The way it works is when you attach a RigidBody2D to an object, you give it physics properties, but it won't do anything useful without a collider. If you have an object with collider attached - every other object with collider attached will collide with it.
In your case the player should have RigidBody2D and BoxCollider2D. The ground should have BoxCollider2D, and basically everything you want the player to collide with should have BoxCollider2D. So the houses should have BoxCollider2D as well.
This setup should allow the player to walk on the ground without falling through it, and collider with houses.
Make sure that the collider's area is correct. You can preview it in the editor and edit it if it's not correct.
Also if you want it to work make sure the camera points down and your game setup is alongside Y axis so if there's a rigid body object falling down it falls down on the ground not before/behind it.
As you can see in the included video the player falls over the floortile till the outer edge of the floor. Instead it should stop at the inner edge of the tile so it looks like its standing ontop of the tile. Can anyone help? I cant find anything on the internet regarding my issue.
Im sorry if this is a easy fix. Im a beginner. This for a school project :)
Video: https://streamable.com/99jz2o
enter image description here
Photo of sprite standing on the wrong edge of the tile.
Edit: I went back to the tile palette and redrew the level. This time selecting the game object + bitmap again. Now it works. Probably the reason why it didn't work was that when I drew the level I had not added Tilemap Collider 2D and Composite Collider 2D. Now redrawing with those 2 components added it works as it should!
The problem is with your tile map collider. Instead of using this, set empty game objects as children of the objects that make up the . Then, add BoxCollider2Ds to each one, and add scale them to fit the map. If that doesn’t work, then it is either a problem with the rigidbody, or the box collider, make sure that all of the settings are set to default, then slowly change them back, and you will discover what is causing the problem. Then you can comment on this post what variable changed it.
Your issue is the Composite Collider. The docs specify that they
do not define an inherent shape. Instead, it merges the shapes of any
Box Collider 2D or Polygon Collider 2D that you set it up to use
When you attach a BoxCollider2D or PolygonCollider2D, there is a check box on them that specifies Used by Composite. When checking this box, other fields will disappear as they are now controlled by the CompositeCollider.
To use this collider, make a new object that will hold all your other colliders or make a few that hold sections of your map. Give this new parent object a CompositeCollider2D and give all the children BoxCollider2D or PolygonCollider2D. After this, make sure to check the box Used by Composite on the children Colliders.
Edit: Sorry just saw you were using a Tilemap. Just make the CompositeCollider a parent of your Tilemap while keeping the Used by Composite checked.
Edit 2: I am not too familiar with Tilemaps with Composite Colliders, but one other solution you can try before re-childing is changing the Geometry Type field on your CompositeCollider from Polygons to Outlines.
I have a collider that when grabbed (pinch gesture), it runs a method. However, I don't want the collider react to select events. Right now, the collider prevents buttons behind it being pressed. So when the pointer is coming from the hand, the ray stops at the collider and doesn't reach to the button behind it.
From my understanding, if there is a collider, the hand interaction ray stops at it, no matter what components it has. My guess is that I need to have a layer that ignores these colliders that still allows for a grab event to be registered. But when I added a layer for the Pointing Raycast Layer Mask, it correctly ignores the collider for the far interactions, but fails to recognize a grab event.
This is how my interactable component looks:Interactable Component
I appreciate any help! Thank you
In the input settings, change the size of Pointing Raycast Layer Masks. Set UI to be element 0 so that pointing events react to that first. documentation
i've made a simple pot model inside blender:
So the idea is that after importing to unity, generating mesh collider, adding ridgin body i would like to be able to put smothing inside the pot. Now it's generating collider but without a "hole" inside, so if i throw smth inside it just bounce off the top. Is there any way to do it simple way? I'd like to avoid making a collider by hand in unity, using cubes and so...
Image overview:
Your collider needs to be concave
It isn't clear from your question how you're "generating mesh collider," but the results are clearly generating a convex collider.
That said, some things to know about mesh colliders (and concave ones even more so): They are very compultationally heavy to calculate, so they should never...
move
scale (especially non-uniformly)
rotate
...at runtime.
Alternatively you can use multiple box colliders in the same orientations as the side-segments of your can (along with one or two for the bottom, depending on how small of an object you'll be dropping inside).
Uncheck the generate collider box from the import settings, add a mesh collider component and check convex.
I would use four or six box colliders for the walls of the pot and another for the floor. You can scale each box collider along each axis, but if you want to rotate a box collider you will need to give it a parent and rotate the parent. Box colliders are very low cost for the physics engine compared to mesh colliders.
The character can enter the elevator but the problem is that he can also walk through the walls from sides and behind.
And if i add a box collider or any other collider/s they will prevent from the character to enter the elevator. It's not my elevator object it was made in blender.
Use Compound Collider instead of Mesh Collider.
Create new empty GameObjects called back, front, right, left, top and bottom
then attach Box Collider to each one. Manually resize and move each one to match the size of the elevator on all sides.
Once that is done, put them in a parent empty GameObject then put that parent GameObject under your elevator GameObject so that the colliders will move/rotate with the elevator. Finally, disable or move the front Collider GameObject via code when you want to allow the player to enter inside the elevator.
The image below shows example of what individual collider should look like and the final look:
These sorts of questions are better off in the Unity Answers, as this isn't a programming question. Please keep that in mind for future questions.
To answer your question though,
Find the mesh in your Project Files in Unity, there is a checkbox for 'Generate Colliders' - check this box and press apply.
Finally, on the GameObject with the mesh, add a MeshCollider component.
If the model is set up correctly, your mesh collider should now use the model for collision.
If this does not work, as an alternative, you can use cubes with colliders and 'build' the collision mesh yourself, and parent the objects to the same object so they move with the lift, before disabling the MeshRenderer component so they will not render.