Questions tagged [navmesh]

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15 views

Eliminate unwanted “hills” in navmesh over a flat floor

So in the image below you can see that my navmesh has these weird hills being formed in it. Any way to remove these? My AI gets stuck on them.
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26 views

Can I rely on a Navmesh for X/Z movement and manually place my agent on the Y axis?

I'm generating my terrain mesh around the player (along with collision mesh and Navmesh). It's tile based, when the player moved enough I generate necessary tiles render meshes, then collision meshes ...
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37 views

Navigation Mesh, Chunks and Funnel Algorithm

I am building a little RTS-like game as a side project and I am currently working on pathfinding. My approach to pathfinding is heavily inspired by things I saw in the Starcraft II map editor, which ...
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1answer
70 views

Spawning large numbers of navmeshagents causes them to jump position

Cross posted on StackOverflow I'm making a tower defense style game in 3D using Unity. I'm experiencing a frustrating issue with spawning large numbers of characters in an area of navmesh where if I ...
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1answer
1k views

How to increase vertical Nav Mesh detection for AI Actors? Using Default Query Extent?

For my swimming AI, I wish to use a Nav Mesh, so they may avoid obstacles and swim up and down - preferably. I figured I should try to solve this with a nav mesh, since UE4 has kindly implemented it ...
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1answer
524 views

Unity3d turn based navmesh algorithm

I am developing a game in Unity3d. In this game, 2 teams will fight without any human interaction. The fight results must be always the same, if the same teams are the same. This way, I must ...
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1answer
339 views

Problem with Unity NavMesh tools

I'm getting this error: Runtime NavMesh Builder source mesh combined mesh is skipped because it does not allow read access I checked all the models and it has the read permission. I also noticed,...
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1answer
2k views

Click to move - get NavMesh layer

I'm using NavMesh, and NavMeshAgent for my character movement and Pathfinding. I made a testing NavMesh with 2 area layers: 0 = Walkable 3 = ...
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14 views

How to find edges along calculated path in a navigation mesh

I have a navigation mesh consisting of triangles. I'm using the center of each triangle as a node for a pathfinding algorithm (A*). I would like to do path straightening with Simple Stupid Funnel ...
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22 views

Unity - Moving X amount of units to destination, RTS style movement

I have a reached a point now where I can select X amount of units, and move them to where I click. My problem is, they all try to get to the same point. I use Unity's own Navmesh + agent. I set ...
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2answers
544 views

Unity how to set Off mesh link speed

How can I set agent's speed on off mesh link? I want it to look like a jump, but now it looks like it was in slow motion.
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43 views

Move Unity NavMeshAgent at a constant speed

My NavMeshAgent randomly changes speed while moving along it's path. It seems to be slower when a segment of a path is shorter (between two waypoints/corners) or when there are many close continuous ...
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1answer
42 views

NavMesh - LoS and “Containing”

For a gameserver/backend, I have a navmesh for "walkable" areas in form of points/triangles. Now I want to check every gametick if the client is still in a legit place and if he shots/casts a spell, ...
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1answer
430 views

Line of Sight Check Theta* Algorithm

I am looking at implementing the Theta* algorithm in a 2D NavMesh. I have A* working, and I need to add a line of sight check to turn it into Theta*, this seems relatively easy in a uniform grid but a ...
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1answer
48 views

NavMesh going in the ground

I'm trying to do a navmesh. Everything seems to work fine exept that my character in almost completely under the ground. The ground is a plane with a mesh collider. I have baked it and checked my ...
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1answer
96 views

Unity, NavMeshAgent SetDestination acts funny

I had a scene set as the following picture. And a NavMesh baked as the following picture. But my "player" (The left-bottom corner sphere) don't go where I want it want to go! Test vedio Source ...
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1answer
135 views

How to move player along navmesh link's curve?

NavMesh Link creates a navigable link between two locations that use NavMeshes. This link can be from point to point or it can span a gap, in which case the Agent uses the nearest location along ...
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2answers
83 views

How to make a car follow a path?

I have a 2D game and my goal is to make a car follow a path (the road in the picture) and rotate in the same time. I tried a plugin in the assets store but it didn't work well for me and i had ...
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99 views

Querying Navmesh with ECS

Has anyone had any luck with querying the baked Navmesh with ECS? Or, rather, with first converting a full map to Entities and Components (or vice versa), and then using the Navmesh for unit ...
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1answer
29 views

How can a NamMeshAgent be configured to always look towards its next path position, but never move there?

I'd like to have something like an on-screen panel that appears in the direction that you are supposed to go. The panel is a NamMeshAgent with a speed of 0. I was hoping something like this would ...
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2answers
1k views

Unity NavMesh pathfinding using Job System

I'm trying to write a system where I can run each enemy's NavMesh pathfinding in parallel, using Job System. The problem I'm having is that I can't pass the NavMesh agent argument as it's a reference ...
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2answers
133 views

How to make specific paths in UE4?

I have a project where I have 1 character (playable) and 2 NPC's (AI). The NPC's are programmed to meet 2 target points. Below is an image to facilitate understanding: As you can see, this green ...
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2answers
244 views

The 'speed' value of the Nav Mesh Agent component does not seem to affect speed at all (Unity3D/C#)

The speed value of the Nav Mesh Agent component doesn't seem to have any effect whatsoever on the speed of my game object. Actually none of the motion values seem to have any effect. I've attached ...
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1answer
157 views

NavMesh - Changing Mesh by Jumping upwards

I have been playing around with the NavMesh and I have seen that there are different situations where an agent has to change meshes. When it works: Everything seems to work alright with links, if I ...
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1answer
46 views

Is there a way to automatically group tiles in a A* pathfinding grid to find the largest areas?

I'm making an RTS game using html canvas. I've made a program that randomly generates levels in order to test my pathfinding script. it divides the pathable blocks into squares so that you can apply A*...
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0answers
115 views

Is there an established way to create a 2D XY NavMesh in Unity?

Specifically, one in the empty space between colliders, rather than on an XZ plane (more or less) over the surface of a collider? Specifically this is because I have a drone, in a current project, ...
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317 views

how to make AI do jump on navigation mesh system?

hi :D i'm currently using unreal for make a sand-box game for learning purpose. and due to the unique attribute of sand-box game, i am looking for how AI move naturally on map (which changes so often)...
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4answers
2k views

How would one generate a Navigation Grid for a 3D world?

I am attempting to find a solution to this problem. I'm trying to build a navigation mesh in the format of a grid of vertices locked to x, y floored coordinates in the shape of squares for 3D space. ...
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0answers
120 views

In unity, making a navmesh for a tiny planet?

I'm trying to build a scene in a small planet, and baking will always give me the result on the half top of the planet. But what I want is to create a navmesh all around the small planet. I am ...
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2answers
238 views

Infinite plane with Unity Navmesh agent

guys! I would like to create a map where the player can never reach the end while using the awesome navmesh agent from unity. Is it achievable? I'm thinking of making a treadmill kind of logic with ...
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4answers
22k views

Is it possible to use nav-mesh in 2d game in Unity?

I'm working on game that needs navigation and obstacle avoidance. I've used nav-mesh on 3d project before but now I'm trying to use it in 2d sprite game but it seems like it doesn't work. I want to ...
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1answer
790 views

NavMesh.SamplePosition() fails after rebaking NavMesh?

So today I was refurbishing a scene when this happened. After baking a new Navmesh the SamplePosition() returned only infinity. I tried a lot of things out but eventually went back to an older version ...
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1answer
155 views

Unity 2018 NavmeshBuilder.BuildNavMeshAsync

I am trying to test out the new Navmesh tools as of Unity 2018.1 So i have a simple scene with a plane: Then i have the following script: ...
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177 views

How can I set the remaining distance of the nav agent?

I have an issue with the nav agent in my game. That I am using the remaining distance to determine the next state of the AI. When the navagent is first given a destination it uses the previous ...
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1answer
490 views

Unity navmeshagent and doors

I'm trying to make an agent patrol around a maze. The maze is proceduraly generated and consists of many rooms connected with doors. The problem occurs when the agent reaches a door. I wrote a script ...
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1answer
146 views

(Unity) what happens if i get a transform.position of a nested object

Okay so here is the example You have a plane at position 0,0,0 with a scale 15,1,15 (for demonstration) Now you have a parent ...
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1answer
242 views

Generating nav meshes from tile based map (2D)

I'm working on a pathfinder for a MMORPG game, it's not mine; I'm RE it, now I need to create a pathfinder for monsters. But I figured that the client uses tiles for it's pathfinder (for players). ...
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1answer
428 views

How can I locate empty space next to polygon regions?

Let's say I have the following area in a top-down map: The circle is the player, the black square is an obstacle, and the grey polygons with red borders are walk-able areas that will be used as a ...
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1answer
376 views

Player with navmeshagent keeps moving back to the last mouse position clicked

On my FPSController I have two scripts, Player Controller and Agent Controller. Player Controller is for using the keys WSAD for moving the player around. Agent Controller uses a NavMeshAgent to ...
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2answers
120 views

What graph Search algorithm (s) that can simulate the behaviour of a human searching in a forest

We are building a game , where a group of humans(AI agents) have to wander seperatly throughout the forest looking for a collectable item. The forest is represented as a 2d graph with the item ...
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1answer
101 views

Why some of the agents are keep staying in the waypoint and not continue to the next waypoint/s?

In the screenshot group of 4 agents (in red) are staying on the waypoint(blue) and they just rotating on the waypoint. The other agents keep moving the waypoints. I'm creating waypoints and agents (...
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2answers
500 views

Stop character from moving after reach his destination?

my script is for character moving to the certain point on the terrain. To get this point I have to use mouse. When I click on the terrain, my character goes there. Now, If he reach his point and ...
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2answers
265 views

(unity3d) Raycast Tags: Object reference not set to an instance of an object not working!

Here is the code I have written for an AI: ...
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1answer
38 views

Player area in navmesh?

In my game, If i click on terrain my soldier goes there. In my terrain there is no place without a navmesh. So, I want to make area where player moves his soldiers on it. If he clicks outside this ...
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1answer
263 views

Prevent navmesh blocking

I'm writing a tower defense game in Unity, inspired by Desktop Tower Defense. Creeps spawn on one side of the screen, and if they make it to the opposite side, the player takes damage. The board ...
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1answer
52 views

Agent hesitate when choose direction?

I have script for my agent enemy where he should choose one random point and goes to it. But what he did is hesitating ! ...
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0answers
107 views

Terrain Navmesh build, rebuild smaller pieces of the bigger navmesh terrain. UNITY

when the area is very big and AI characters are required to walk a larger distance, it would be beneficial to have the large navmesh ready for finding a path. when we change the height of the terrain ...
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0answers
47 views

Getting the polygon footprint from a map

I'm trying to implement the Explicit Corridors method to generate a navmesh for a large city. The algorithm takes a list of convex polygons representing the obstacles as input. The paper only ...
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1answer
6k views

A* navigational mesh path finding

So I've been making this top down 2D java game in this framework called Greenfoot and I've been working on the AI for the guys you are gonna fight. I want them to be able to move around the world ...
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1answer
865 views

NavMesh moving is not smooth

I have two car in game one of them is cop that chase player, i put a NavMesh on cop with these values: when the cop get close to player (player speed is 10 ) , movement will go jittery and not smooth....