The main problem is to render a player body for every other player in a room. However, the player themself must see only attached hands, not his own body (and he must not see others attached hands). Is there a way to do this?
I tried to use a culling mask on cam, but it doesn't make a lot sense.
Culling mask actually make sense. Mark the body mesh with different layer should hide the body.
You just need to enable / disable it base on isLocalPlayer value.
Alternative way of doing this would be using two set prefebs.
A. One is player controlled
B. One for other player.
Where prefeb A only contains hands. But note that this come with other issue like player's body will not cast shadow as it does not exist.
I think using a culling mask makes perfect sense.
I'd use it in addition to disabling your own player mesh and enabling the attached hands if you have authority (if it's yours).
Related
I am currently working on a classical fps game, I want to be able to generate larger numbers "enemies", ideally in the hundreds. Though this may not be feasible. I am hoping to use physics and Rigidbod[ies] for these enemy models.
Obviously the nice solution would be to have mesh colliders on all these models but I'm pretty sure that will affect performance. So my alternative idea was to instead set them up initially with box colliders while they are atleast X distance from the player and then once they enter that radius around the player to switch (via enabling and disabling) these box colliders to mesh colliders.
Is this possible to do and what are the implications? My initial tests caused the model to lose its collision detection with the floor, and so drop through the environment.
Are there are performance implications to switching (enabling/disabling) colliders/if this would even make a difference?
Lastly if none of the above, is there a better solution to this problem that is performant?
The most common practice I know is using multiple primitive colliders under the same rigidbody; I believe this is much more efficient than using mesh colliders, plus, as an added bonus you can even very easily handle special hits (headshots do x2 damage, leg shots slow enemies down) since you know exactly which collider was hit.
Here is an example of how they did it back in the day in Counter Strike
Notice that you will have to place each primitive collider correctly on the bone structure for it to move correctly during animations.
I think you should have two colliders for your ennemies :
1) A persistant box for physical interaction. (This collider would be on a separate layer, colliding only with the physical space.
2) Then, you would have your flexible box / mesh collider. Instead of swapping colliders, enable/disable them. If it is too far, try enabling the box, and if too close, enable the mesh collider. I think enabling and disabling is better for performance than removing and adding components at runtime. Plus, since you already have an 'environmental collider', swapping isn't an issue for the movement of your ennemies.
Hope this helps.
Hi guys i was wondering how to create a shape adjustment with two objects which specifically could be described as the independent cells, one of which is static, and the second one is dynamic and surrounded by "plasma". The movement of the active object must be controllable by the user (WSAD). Collision of the active object with the static one causes the static object to be swallen, though doesn't change it's position stays in place all the time. As the active object moves, passes the swallen object and troughts it out.
See the image below:
Player character
When it comes close enough to pink enemy it's starting to swallow it (surround by yellow thing)
Pink enemy is completely sourrounded when red circle is in the centre of both.
When it leaves enemy it takes off the yellow thing
I was wondering what is the simplest way to do it. I've been thinking about cloth, physics joints, mesh substraction (is it even possible?), some kind of animation... I don't have much time to do it. Can you show me the simplest way. Which tools and approach should i use? I'm not asking for full code or full solution only for some tips.
Tim Hunter mentioned a wonderful way, most perfect in 3D.
You can use another approach in 2D :
Inside OnCollisionEnter2D try finding hit points using Collision2D.contacts . See this reference .
Create some particle effect there.
Disable the enemy
Now play swallowing animation of the player.
At animation end, enable enemy again.
Maybe calculation is little tricky, still efficient.
I'm prototyping a climbing system for my stealth game. I want to mark some edges so that the player can grab them, but I'm not sure how to approach it. I know I can add separate colliders, but this seems quite tedious. Instead, what I'd like to do is to mark mark the edges in the mesh. Can this be achieved? How?
You're probably better off storing that edge data externally (that is, elsewhere in your running game than in the mesh) in an accessible format, that said, if you truly want to embed it INTO the mesh...
Tuck the metadata into Mesh.colors or Mesh.uv2 like #Draco18s suggests. Most shaders ignore one or both of these. Of course, you'll be duplicating edge/face level info for each vertex on the face.
When a player tries to "grab" an edge, run your collision test, grab the face, grab any vertex on the face, and look up your edge/face info.
You could also, for example, attach your edge metadata collection to a script attached to the mesh's game object. So long as you can access your collection of edges when you need to perform the test, where you store it is an implementation detail.
If you have the ability to add nested objects in your mesh, you could create a primitive box that represents the desired ledge and collider size. When you import the mesh in Unity, the child mesh object will appear as a child gameObject with its own MeshRenderer. You can disable the MeshRenderer for the ledge and add a BoxCollider component to it. The collider will be automatically sized to match the primitive mesh.
Blender Nested Objects example
Unity Nested Objects example
With a whole bunch of copy-pasting from all over the web, I managed to hack together a piece of C# code which spawns a random object from an array when the player enters a large, spherical collision trigger. When the player leaves the trigger, the object is deleted. It's working almost as intended, only problem is that six out of ten times when the player passes through the collider, for a split second it feels like a physical collider. Meaning that although the player is trying to move straight forward, he or she will move left or right along the trigger collider for about half a second, before the object spawns and the player can move freely again.
I was under the impression that checking the "Is Trigger" box would remove all physical properties of that specific collider? Am I missing something?
I'm using the standard FPS Character Controller in Unity 5 if that might have something to do with it.
All help is greatly appreciated.
Make sure the spherical collision trigger has a rigid body component, and that the "Is Kinematic" property of the rigid body is checked.
Realized my solution didn't get posted as I thought it had. Yoyo's solution was correct. The object containing the code was also the trigger. Switched so that the player was the trigger and now all is well.
I have an object which has a diffuse shader and on runtime I want the shader to switch to Diffuse Always Visible but this should trigger only if the unit is behind a specific object within the layer named obstacles.
First I tried to switch the object shader with the following code and the shader is changed in the inspector but not in the game during play. I tried placing and calling the shader from the resources and also created seprate materials but its not working.
Here is the code I am using in C#
Unit.renderer.material.shader = Shader.Find("Diffuse - Always visible");
As for the rest I was thinking of using a raycast but not sure how to handle this.
Thanks in advance
I only need the other concept now where the shader changes if a unit is behind an object!
For the trigger, how to handle it will depend a lot on how your camera moves.
To check in a 3D game, raycasts should work. Because whether or not something is "behind" something else depends on the camera's perspective, I would personally try something like this to start:
Use Camera.WorldToScreenPoint to figure out where your object is on the screen.
Use Camera.ScreenPointToRay to convert this into a ray you'll send through the physics engine.
Use Physics.Raycast and check what gets hit. If it doesn't hit the object in question, something is in front of it.
Depending on your goals, you might want to check different points. If you're just checking if something is more than halfway covered by an object, doing a single raycast at its center is probably sufficient. If you want to see if it's at all occluded, you could try something like finding four approximate corners of the object and raycasting against them.
If it's a 2D game or the camera is always at a fixed angle (for example, in a side scroller), the problem is potentially a lot simpler. Add colliders to the objects, and use OnTriggerEnter or OnTriggerEnter2D (along with the corresponding Exit functions). That only works if the tiniest bit of overlap should trigger the effect, and it only works if depth doesn't really matter (e.g. in a 2D game) so your colliders will actually intersect.