I've made a snow effect with particles system in away3d, but when I added a particleFollowNode to the ParticleAnimationSet,then the billboardNode did not work. Anybody knows how to fix this bug? Thanks for your help.
ActionScript:
//setup the particle animation set
_particleAnimationSet = new ParticleAnimationSet(true, true);
_particleAnimationSet.addAnimation(new ParticleVelocityNode(ParticlePropertiesMode.LOCAL_STATIC));
_particleAnimationSet.addAnimation(new ParticlePositionNode(ParticlePropertiesMode.LOCAL_STATIC));
particleFollowNode=new ParticleFollowNode(true,true);
//add particleFollowNode for moving particles around
_particleAnimationSet.addAnimation(particleFollowNode);
//then BillBoad stopped working...
_particleAnimationSet.addAnimation(new ParticleBillboardNode());
_particleAnimationSet.initParticleFunc = initFunc;
I've fixed the bug. the particle mesh's bounds doesn't update properly which cause the mesh culling step cut it off while the mesh's fake bounds isn't in camera's frustum .
How to fix:
1. Set particle mesh's id as "Particles"
2. In MeshNode.cs file, function acceptTraverser, modify as :
override public function acceptTraverser(traverser:PartitionTraverser):void
{
//trace(_mesh.id);
if (traverser.enterNode(this)||_mesh.id=="Particles")
{
super.acceptTraverser(traverser);
var subs:Vector.<SubMesh> = _mesh.subMeshes;
var i:uint;
var len:uint = subs.length;
while (i < len)
traverser.applyRenderable(subs[i++]);
}
}
Related
I add some line dynamically and they appear in the scene view perfectly, but not in game view. The z indexes are properly set, I use different layer just for the lines. I tried changing the camera clipping planes values, culling mask is on everything.
void Update()
{
Vector2 mousePos;
if (Input.GetMouseButtonDown(0))
{
Vector3 closeToPoint = IsClickCloseToPoint();
if (closeToPoint.z != -10000f)
{
GameObject newObj = Instantiate(lineGenerator);
startMousePos = closeToPoint;
newLine = newObj.GetComponent<LineRenderer>();
newLine.transform.SetParent(parentObject.transform);
newLine.positionCount = 2;
}
}
if (Input.GetMouseButton(0))
{
if (newLine != null)
{
mousePos = Input.mousePosition;
newLine.SetPosition(0, new Vector3(startMousePos.x, startMousePos.y, -5f));
newLine.SetPosition(1, new Vector3(mousePos.x, mousePos.y, -5f));
distance = (mousePos - startMousePos).magnitude;
distanceText.text = distance.ToString("F2");
}
}
if (Input.GetMouseButtonUp(0))
{
if (newLine != null)
{
newLine = null;
}
}
}
You are drawing everything on a canvas. But LineRenderer is not a UI component and therefore is not shown on the canvas.
If you want to work with LineRenderer nontheless check this info in Unity Answers. The basic idea is to have the canvas set up as Screen Space and increase the width of the lines. Don't forget to assign the camera.
i think you need to put a material on the lineRenderer. What you see in the scene view is the "non material" texture that doesn't appear in game view :)
I hope that help :)
Raph
The problem was that the coordinates are different in the scene view and the game view, or at least you have to design to the game view, not the scene view. My lines were present in the game view, but they were out of the canvas. I used Camera.main.ScreenToWorldPoint(Vektor3) to convert every vektor.
I can't see the Inspector settings of your LinRenderer but I suspect that you have
Alignment set to Transform Z
Lines face the Z axis of the Transform Component.
And thos becomes completely invisible if your orthographic Camera looks exactly in Z direction onto it.
Try and change the Alignment to View.
Also note that literally nothing is rendered on top of a ScreenSpace Overlay Canvas. It is one of the last things to be rendered in a frame.
This bug is doing my head in and I can't figure it out!
I have an empty gun, and when I move it near the magazine it has a collide trigger that grabs the magazine, scales it and inserts it into the gun. This bit works fine. However in the code i also set the magazine parent to the gun and set the gravity to false and isKinematic to true - these bits do not happen. Therefore the magazine scales to the gun and then floats off into the distance and when I look in Unity it is not set to be a child of the gun and gravity and kinematic are both unchecked even though I clearly set these below. How is the magazine being scaled and positioned correctly but the parent and rigidbody edits are not being made?
Here is the code:
//THIS CLASS IS A CHILD OF THE GUN
public class GunBody : MonoBehaviour {
void OnTriggerEnter(Collider collider)
{
Debug.LogError("collision with well");
//check if the collision was with the magazine
if (collider.gameObject.name == "Magazine 1")
{
//reload the gun if it was
addClip(collider.gameObject);
}
}
public void addClip(GameObject magazine)
{
magazine.transform.parent = transform.parent; //DOES NOT WORK
magazine.transform.position = transform.parent.position;
magazine.transform.rotation = transform.parent.rotation;
magazine.transform.localRotation = Quaternion.Euler(-89.96101f, 0f, 0f);
magazine.transform.localScale = new Vector3(14f, 20f, 20f);
magazine.transform.localPosition = new Vector3(0f, -0.8215461f, 1.64772f);
magazine.GetComponent<Rigidbody>().useGravity = false; //DOES NOT WORK
magazine.GetComponent<Rigidbody>().isKinematic = true; //DOES NOT WORK
}
Hopefully someone can spot what is going wrong?
Thanks
when you do magazine.transform.parent = transform.parent; you set your script's parent as a parent of magazine. I don't know how your code is organized, but are you sure you want to set magazine as a child of GunBody's object parent? And also maybe try using magazine.transform.SetParent(this.transform).
This scale and positioning problems come from not having (1,1,1) scale of gun. Try to put a gun and a magazine to another empty object.
You can do
magazine.transform.SetParent(transform.parent, false);
So it will be set according to position and orientation of Parent. No need to write First 3 lines of code to set Parent Position and Rotation.
I've created an arm with a custom pivot in Unity which is essentially supposed to point wherever the mouse is pointing, regardless of the orientation of the player. Now, this arm looks weird when pointed to the side opposite the one it was drawn at, so I use SpriteRenderer.flipY = true to flip the sprite and make it look normal. I also have a weapon at the end of the arm, which is mostly fine as well. Now the problem is that I have a "FirePoint" at the end of the barrel of the weapon, and when the sprite gets flipped the position of it doesn't change, which affects particles and shooting position. Essentially, all that has to happen is that the Y position of the FirePoint needs to become negative, but Unity seems to think that I want the position change to be global, whereas I just want it to be local so that it can work with whatever rotation the arm is at. I've attempted this:
if (rotZ > 40 || rotZ < -40) {
rend.flipY = true;
firePoint.position = new Vector3(firePoint.position.x, firePoint.position.y * -1, firePoint.position.z);
} else {
rend.flipY = false;
firePoint.position = new Vector3(firePoint.position.x, firePoint.position.y * -1, firePoint.position.z);
}
But this works on a global basis rather than the local one that I need. Any help would be much appreciated, and I hope that I've provided enough information for this to reach a conclusive result. Please notify me should you need anything more. Thank you in advance, and have a nice day!
You can use RotateAround() to get desired behaviour instead of flipping stuff around. Here is sample code:
public class ExampleClass : MonoBehaviour
{
public Transform pivotTransform; // need to assign in inspector
void Update()
{
transform.RotateAround(pivotTransform.position, Vector3.up, 20 * Time.deltaTime);
}
}
I'm trying to get the NPC to look at the main character when I'm talking to him. I need to make sure it looks natural and that he is facing me. I know I can do Transform.LookAt() but that is too instant and unnatural.
How do I rotate the navmeshagent to face my character when its stopped moving?
Try this out to control the body orientation - the slerp is adjustable to your desired rotation speed (https://docs.unity3d.com/ScriptReference/Quaternion.Slerp.html):
private void FaceTarget(Vector3 destination)
{
Vector3 lookPos = destination - transform.position;
lookPos.y = 0;
Quaternion rotation = Quaternion.LookRotation(lookPos);
transform.rotation = Quaternion.Slerp(transform.rotation, rotation, [fill in desired rotation speed]);
}
if(agent.remainingDistance < agent.stoppingDistance)
{
agent.updateRotation = false;
//insert your rotation code here
}
else {
agent.updateRotation = true;
}
This will rotate your agent when it's distance below the stoppingDistance variable. However it will look inhuman, so if you're going for a humanoid ai I'd recommend looking at the unity Mecanim demo (particularly the locomotion scene) as it has code and animations that will properly animate the agent.
Maybe try this Head Look Controller. It's very smooth and blends with animations!
Put the char in a game object and copy the navmesh from the char to the parent, uncheck enable in char. move any scripts up too.
Just spent 5 hours to find this.
I have set up Unity navigation meshes (four planes), navigation agent (sphere) and set up automatic and manual off mesh links. It should now jump between meshes. It does jump between meshes, but it does that in straight lines.
In other words, when agent comes to an edge, instead of actually jumping up (like off mesh link is drawn) it just moves straight in line but a bit faster. I tried moving one plane higher than others, but sphere still was jumping in straight line.
Is it supposed to be like this? Is it possible to set up navigation to jump by some curve? Or should I try to implement that myself?
I came by this question, and had to dig through the Unity sample. I just hope to make it easier for people by extracting the important bits.
To apply your own animation/transition across a navmesh link, you need to tell Unity that you will handle all offmesh link traversal, then add code that regularly checks to see if the agent is on an offmesh link. Finally, when the transition is complete, you need to tell Unity you've moved the agent, and resume normal navmesh behaviour.
The way you handle link logic is up to you. You can just go in a straight line, have a spinning wormhole, whatever. For jump, unity traverses the link using animation progress as the lerp argument, this works pretty nicely. (if you're doing looping or more complex animations, this doesn't work so well)
The important unity bits are:
_navAgent.autoTraverseOffMeshLink = false; //in Start()
_navAgent.currentOffMeshLinkData; //the link data - this contains start and end points, etc
_navAgent.CompleteOffMeshLink(); //Tell unity we have traversed the link (do this when you've moved the transform to the end point)
_navAgent.Resume(); //Resume normal navmesh behaviour
Now a simple jump sample...
using UnityEngine;
[RequireComponent(typeof(NavMeshAgent))]
public class NavMeshAnimator : MonoBehaviour
{
private NavMeshAgent _navAgent;
private bool _traversingLink;
private OffMeshLinkData _currLink;
void Start()
{
// Cache the nav agent and tell unity we will handle link traversal
_navAgent = GetComponent<NavMeshAgent>();
_navAgent.autoTraverseOffMeshLink = false;
}
void Update()
{
//don't do anything if the navagent is disabled
if (!_navAgent.enabled) return;
if (_navAgent.isOnOffMeshLink)
{
if (!_traversingLink)
{
//This is done only once. The animation's progress will determine link traversal.
animation.CrossFade("Jump", 0.1f, PlayMode.StopAll);
//cache current link
_currLink = _navAgent.currentOffMeshLinkData;
//start traversing
_traversingLink = true;
}
//lerp from link start to link end in time to animation
var tlerp = animation["Jump"].normalizedTime;
//straight line from startlink to endlink
var newPos = Vector3.Lerp(_currLink.startPos, _currLink.endPos, tlerp);
//add the 'hop'
newPos.y += 2f * Mathf.Sin(Mathf.PI * tlerp);
//Update transform position
transform.position = newPos;
// when the animation is stopped, we've reached the other side. Don't use looping animations with this control setup
if (!animation.isPlaying)
{
//make sure the player is right on the end link
transform.position = _currLink.endPos;
//internal logic reset
_traversingLink = false;
//Tell unity we have traversed the link
_navAgent.CompleteOffMeshLink();
//Resume normal navmesh behaviour
_navAgent.Resume();
}
}
else
{
//...update walk/idle animations appropriately ...etc
Its recommended to solve your problems via animation. Just create a Jump animation for your object, and play it at the correct time.
The position is relative, so if you increase the Y-position in your animation it will look like the object is jumping.
This is also how the Unity sample is working, with the soldiers running around.
Not sure what version of unity you are using but you could also try this, I know it works just fine in 4:
string linkType = GetComponent<NavMeshAgent>().currentOffMeshLinkData.linkType.ToString();
if(linkType == "LinkTypeJumpAcross"){
Debug.Log ("Yeah im in the jump already ;)");
}
also just some extra bumf for you, its best to use a proxy and follow the a navAgent game object:
Something like:
AIMan = this.transform.position;
AI_Proxy.transform.position = AIMan;
And also be sure to use:
AI_Proxy.animation["ProxyJump"].blendMode = AnimationBlendMode.Additive;
If you are using the in built unity animation!
K, that's my good deed for this week.
Fix position in update()
if (agent.isOnOffMeshLink)
{
transform.position = new Vector3(transform.position.x, 0f, transform.position.z);
}