koobas.hobune.stream
How to effect and apply a common material to children individually...
Hi Guys,
I'm having trouble changing the material on children inside a prefab via a raycast hit...
To set the scene I have a city that I want to be able to click on blocks and bring up a list of some sort, all in AR.
I've got everything working for the prototype aside from the "highlight"/change material.
I want to be able to highlight/change material of the block I click on/raycast hit, as well as bring up the UI details about the block/plot/gameobject.
Eventually I want to be able to bring in those details via a CSV file and update via the cloud but need the prototype up and running first.
I've got the material changing but it effects the first material slot of everything...
Eventually I want to be able to do more things with the children but will settle for understanding my problem a bit better...
As always I appreciate your time and any and all help is much appreciated.
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using System.Collections.Generic;
public class IsClicked : MonoBehaviour {
public CanvasGroup ItemCanvas;
public Renderer rend;
public Material StartColour;
public Material childColour;
public List<Transform> objects;
public List<Transform> childObjects;
public Material Glow;
List <Material> childColours;
List<Renderer> childRenderers;
Renderer childRenderer;
void Start ()
{
rend = GetComponent<Renderer>();
childColours = new List<Material>();
childRenderers = new List<Renderer>();
childRenderer = GetComponent<Renderer> ();
StartColour = childRenderer.material;
for (int i = 0; i < transform.childCount; ++i) {
childRenderers.Add (transform.GetChild (i).GetComponent<Renderer> ());
childColours.Add (childRenderers [i].material);
}
}
void Update () {
if (Input.GetMouseButtonDown (0)) {
Ray ray = Camera.main.ScreenPointToRay (Input.mousePosition);
RaycastHit hit;
if (Physics.Raycast (ray, out hit, 1000)) {
ItemCanvas.interactable = true;
ItemCanvas.blocksRaycasts = true;
ItemCanvas.alpha = 1;
childRenderer.material = Glow;
for (int i = 0; i < childRenderers.Count; ++i)
childRenderers [i].material = Glow;
if (hit.collider.tag == "plot_01") {
Debug.Log ("plot_01");
}
if (hit.collider.tag == "plot_02") {
Debug.Log ("plot_02");
}
if (hit.collider.tag == "plot_03") {
Debug.Log ("plot_03");
}
}
else{
Debug.Log ("you clicked on nothing");
ItemCanvas.interactable = false;
ItemCanvas.blocksRaycasts = false;
ItemCanvas.alpha = 0;
childRenderer.material = StartColour;
for(int i = 0; i < childRenderers.Count; ++i)
childRenderers[i].material = childColours[i];
}
}
}
}
Latest attempt get me the individual plots/gameobjects/blocks to change color/highlight but I can't get them back.
I know I need to store them but it doesn't seem to be working with this method.
No errors or anything.
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using System.Collections.Generic;
public class IsClicked : $$anonymous$$onoBehaviour {
public CanvasGroup ItemCanvas;
public Renderer rend;
public $$anonymous$$aterial Glow;
public GameObject Plot_01;
public Component[] allChildren;
$$anonymous$$aterial[] Originals;
$$anonymous$$aterial original$$anonymous$$at;
void Start ()
{
Plot_01 = GameObject.Find ("Plot_01");
original$$anonymous$$at = GetComponentInChildren<Renderer>().material;
}
void Update ()
{
if (Input.Get$$anonymous$$ouseButtonDown (0)) {
Ray ray = Camera.main.ScreenPointToRay (Input.mousePosition);
RaycastHit hit;
if (Physics.Raycast (ray, out hit, 1000)) {
ItemCanvas.interactable = true;
ItemCanvas.blocksRaycasts = true;
ItemCanvas.alpha = 1;
if (hit.collider.tag == "plot_01") {
Plot_01.GetComponent<Renderer>().material = Glow;
Debug.Log ("plot_01");
}
if (hit.collider.tag == "plot_02") {
Debug.Log ("plot_02");
}
if (hit.collider.tag == "plot_03") {
Debug.Log ("plot_03");
}
} else {
Debug.Log ("you clicked on nothing");
ItemCanvas.interactable = false;
ItemCanvas.blocksRaycasts = false;
ItemCanvas.alpha = 0;
GetComponentInChildren<Renderer>().material = original$$anonymous$$at;
}
}
}
}
O$$anonymous$$, I've got it working...kinda...
Only one of the plots changes back and forth, the others stay highlighted???
I have this on the prefab -v-
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using System.Collections.Generic;
public class IsClicked : $$anonymous$$onoBehaviour {
public CanvasGroup ItemCanvas;
public Renderer rend;
public $$anonymous$$aterial Glow;
public Component[] allChildren;
private GameObject Plot_01;
private GameObject Plot_02;
private GameObject Plot_03;
private GameObject Plot_04;
$$anonymous$$aterial[] Originals;
$$anonymous$$aterial original$$anonymous$$at;
void Start ()
{
Plot_01 = GameObject.Find ("Plot_01");
Plot_02 = GameObject.Find ("Plot_02");
Plot_03 = GameObject.Find ("Plot_03");
Plot_04 = GameObject.Find ("Plot_04");
}
void Update ()
{
if (Input.Get$$anonymous$$ouseButtonDown (0)) {
Ray ray = Camera.main.ScreenPointToRay (Input.mousePosition);
RaycastHit hit;
if (Physics.Raycast (ray, out hit, 1000)) {
ItemCanvas.interactable = true;
ItemCanvas.blocksRaycasts = true;
ItemCanvas.alpha = 1;
if (hit.collider.tag == "plot_01") {
Plot_01.GetComponent<Renderer>().material = Glow;
Debug.Log ("plot_01");
}
if (hit.collider.tag == "plot_02") {
Plot_02.GetComponent<Renderer>().material = Glow;
Debug.Log ("plot_02");
}
if (hit.collider.tag == "plot_03") {
Plot_03.GetComponent<Renderer>().material = Glow;
Debug.Log ("plot_03");
}
if (hit.collider.tag == "plot_04") {
Plot_04.GetComponent<Renderer>().material = Glow;
Debug.Log ("plot_04");
}
}
else
{
Debug.Log ("you clicked on nothing");
ItemCanvas.interactable = false;
ItemCanvas.blocksRaycasts = false;
ItemCanvas.alpha = 0;
GetComponentInChildren<$$anonymous$$aterialSaver> ().Restore ();
}
}
}
}
And then this on each block/child/gameobject -v-
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using System.Collections.Generic;
public class $$anonymous$$aterialSaver : $$anonymous$$onoBehaviour {
$$anonymous$$aterial[] original$$anonymous$$at;
void Start() {
original$$anonymous$$at = GetComponent<Renderer>().materials;
}
public void Restore() {
GetComponent<Renderer>().materials = original$$anonymous$$at;
}
}
Hey Guys,
Well that was quite fun!
I ended up doing it like this:
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using System.Collections.Generic;
public class IsClicked : MonoBehaviour {
public CanvasGroup ItemCanvas;
public Renderer rend;
public Material Glow;
public Material[] StartColour;
public Component[] allChildren;
private GameObject Plot_01;
private GameObject Plot_02;
private GameObject Plot_03;
private GameObject Plot_04;
List<Material> childColours;
List<Renderer> childRenderers;
Renderer parentRenderer;
void Start ()
{
childColours = new List<Material>();
childRenderers = new List<Renderer>();
parentRenderer = GetComponent<Renderer>();
StartColour = parentRenderer.materials;
for (int i = 0; i < transform.childCount; ++i)
{
childRenderers.Add(transform.GetChild(i).GetComponent<Renderer>());
childColours.Add(childRenderers[i].material);
}
Plot_01 = GameObject.Find ("Plot_01");
Plot_02 = GameObject.Find ("Plot_02");
Plot_03 = GameObject.Find ("Plot_03");
Plot_04 = GameObject.Find ("Plot_04");
}
void Update ()
{
if (Input.GetMouseButtonDown (0)) {
Ray ray = Camera.main.ScreenPointToRay (Input.mousePosition);
RaycastHit hit;
if (Physics.Raycast(ray, out hit, 1000)) {
ItemCanvas.interactable = true;
ItemCanvas.blocksRaycasts = true;
ItemCanvas.alpha = 1;
if (hit.collider.tag == "plot_01") {
Plot_01.GetComponent<Renderer>().material = Glow;
Debug.Log("plot_01");
}
if (hit.collider.tag == "plot_02") {
Plot_02.GetComponent<Renderer>().material = Glow;
Debug.Log("plot_02");
}
if (hit.collider.tag == "plot_03") {
Plot_03.GetComponent<Renderer>().material = Glow;
Debug.Log("plot_03");
}
if (hit.collider.tag == "plot_04") {
Plot_04.GetComponent<Renderer>().material = Glow;
Debug.Log("plot_04");
}
}
else
{
Debug.Log("you clicked on nothing");
ItemCanvas.interactable = false;
ItemCanvas.blocksRaycasts = false;
ItemCanvas.alpha = 0;
parentRenderer.materials = StartColour;
for (int i = 0; i < childRenderers.Count; ++i) childRenderers[i].material = childColours[i];
}
}
}
}
If you can see a better way of doing it please let me know, alternatively if you know how I can apply a quick edit to change all the materials in every slot that would be great! otherwise I'll keep hacking away.
Thanks again!
you are changing the material of each child of your list: don't you want to change it only on the one that was hit by a raycast?
for your update, you want to have your "material saver" on each of your plot, and call them when they are not hit by the raycast anymore
Hi Bill,
Yea, I have. Only Plot_03 behaves correctly?
All the others wont return to the original material.
EDIT: Video of the Issue
