#UNITY COLLIDER TYPE SPRITE VS GRID MANUAL#

Each LOD level has either a Mesh with a Mesh Renderer component ( Mesh LOD level) or a Billboard asset with a Billboard Renderer component ( Billboard LOD level). More info See in Glossary graphic perfectly but you can refine the shape to any level of detail The Level Of Detail (LOD) technique is an optimization that reduces the number of triangles that Unity has to render for a GameObject when its distance from the Camera increases. If you are used to working in 3D, Sprites are essentially just standard textures but there are special techniques for combining and managing sprite textures for efficiency and convenience during development. In 2D, the Polygon Collider 2D does not match the shape of the sprite A 2D graphic objects. More info See in Glossary to match the shape of the GameObject’s mesh exactly.

In 3D, you can use Mesh Colliders A free-form collider component which accepts a mesh reference to define its collision surface shape. There are some cases, however, where even compound colliders are not accurate enough. If you use a combination of rotations and non-uniform scales in the Transform hierarchy so that the resulting shape is no longer a primitive shape, the primitive collider cannot represent it correctly. Primitive colliders do not work correctly with shear transforms. More info See in Glossary component, placed on the root GameObject in the hierarchy. When you create a compound collider like this, you should only use one Rigidbody A component that allows a GameObject to be affected by simulated gravity and other forces. For instance, you can rotate boxes relative to the local axes of the parent GameObject. To get further flexibility, you can add additional colliders on child GameObjects. You can add any number of these to a single GameObject to create compound colliders.Ĭompound colliders approximate the shape of a GameObject while keeping a low processor overhead. In 2D, you can use the Box Collider 2D and Circle Collider 2D. More info See in Glossary and Capsule Collider A capsule-shaped collider component that handles collisions for GameObjects like barrels and character limbs. More info See in Glossary, Sphere Collider A sphere-shaped collider component that handles collisions for GameObjects like balls or other things that can be roughly approximated as a sphere for the purposes of physics. In 3D, these are the Box Collider A cube-shaped collider component that handles collisions for GameObjects like dice and ice cubes. The simplest (and least processor-intensive) colliders are primitive collider types. A rough approximation of the mesh is often more efficient and indistinguishable in gameplay.

Nurbs, Nurms, Subdiv surfaces must be converted to polygons. Unity supports triangulated or Quadrangulated polygon meshes. Meshes make up a large part of your 3D worlds. A collider, which is invisible, does not need to be the exact same shape as the GameObject’s mesh The main graphics primitive of Unity. More info See in Glossary for the purposes of physical collisions. A GameObject’s functionality is defined by the Components attached to it. The reason this all has to be setup this way is to fix ghost collisions.Collider components define the shape of a GameObject The fundamental object in Unity scenes, which can represent characters, props, scenery, cameras, waypoints, and more. They have to uncheck used by composite when the player is under them since they have the platform effector 2D on them and it won't work, of course, in a composite collider 2D. Is there anyway to optimize this?ĮDIT: Another issue that doesn't seem to even have a way to optimize is those platforms connected to the terrain.

#UNITY COLLIDER TYPE SPRITE VS GRID MANUAL#

I know I can set it to manual and rebuild it once all the blocks are broken in that frame, but it still doesn't address the issue of how long it takes to rebuild. Meaning, every time you break a block, the composite collider 2D is rebuilt. This can be especially bad when you are breaking blocks and it has to rebuild every block you break.

When the player switched to state O the breakable block tilemap is put back into the composite collider 2D.Īs you can see from the above image, you can switch between these two states fast in the game.

This can cause issues if there are a lot of tile.

Whenever the player is in state X, the breakable block tilemap is taken out of the composite collider 2D by unchecking used by composite.

In the picture below, there are 2 tilemaps (terrain and breakable block) and 2 game objects (the two platforms). It holds 1 breakable block tilemap, 1 terrain tilemap, and platform GameObjects.

Unity collider type sprite vs grid