[Construction code]
RootComponent = CreateDefaultSubobject(TEXT("RootComponent"));
MeshComponent = CreateDefaultSubobject(TEXT("MeshComponent"));
MeshComponent->SetupAttachment(GetRootComponent());
Camera = CreateDefaultSubobject<UCameraComponent>(TEXT("Camera Component"));
Camera->SetupAttachment(GetRootComponent());
Camera->SetRelativeLocation(FVector(-300.f, 0.f, 300.f));
Camera->SetRelativeRotation(FRotator(-45.f, 0.f, 0.f));
[Header File]
UPROPERTY(EditAnywhere, BlueprintReadWrite)
class UStaticMeshComponent* MeshComponent;
UPROPERTY(EditAnywhere, BlueprintReadWrite)
class UCameraComponent* Camera;
[Result]
enter image description here
The way to have components show in the editor the way you expect them to is to define them as such:
private:
UPROPERTY(VisibleAnywhere, BlueprintReadWrite, meta = (AllowPrivateAccess = "true"))
class UCameraComponent* Camera;
Related
void OnTriggerStay(Collider other)
{
if (other.gameObject.CompareTag("tree"))
{
Color color = other.gameObject.GetComponent<Renderer>().material.color;
color.a = 0.5f;
}
}
If an object with a "tree" tag enters the camera's trigger, I want the opacity of that object to be 0.5. But didn't worked. How can i fix this? Thanks.
While the other two answers are technically correct, you are most likely missing a very important step to allow for the changing of the alpha of a Material. I'll take a guess and assume you generated a new Material in the Editor by using the Asset Creation Menu. By default, the Material RenderMode is set to Opaque.
To allow for changes of the Material color's alpha, you will need to set the RenderMode either to Transparent or Fade. If you are working with a custom shader, you will need to alter the code to format to one of the mentioned RenderTypes. If you need help modifying your shader, that would best be answered in a new question.
For clarity, here is a gif of what the confusion might be:
Edit: For completeness, here is a full script that will toggle the RenderMode of your material at runtime if you do not wish to change it at compile time.
using UnityEngine;
public static class MaterialUtils
{
public enum BlendMode
{
Opaque,
Cutout,
Fade,
Transparent
}
public static void SetupBlendMode(Material material, BlendMode blendMode)
{
switch (blendMode)
{
case BlendMode.Transparent:
material.SetOverrideTag("RenderType", "Transparent");
material.SetInt("_SrcBlend", (int)UnityEngine.Rendering.BlendMode.SrcAlpha);
material.SetInt("_DstBlend", (int)UnityEngine.Rendering.BlendMode.OneMinusSrcAlpha);
material.SetInt("_ZWrite", 0);
material.DisableKeyword("_ALPHATEST_ON");
material.EnableKeyword("_ALPHABLEND_ON");
material.DisableKeyword("_ALPHAPREMULTIPLY_ON");
material.renderQueue = (int)UnityEngine.Rendering.RenderQueue.Transparent;
material.SetFloat("_Mode", 3.0f);
break;
case BlendMode.Opaque:
material.SetOverrideTag("RenderType", "");
material.SetInt("_SrcBlend", (int)UnityEngine.Rendering.BlendMode.One);
material.SetInt("_DstBlend", (int)UnityEngine.Rendering.BlendMode.Zero);
material.SetInt("_ZWrite", 1);
material.DisableKeyword("_ALPHATEST_ON");
material.DisableKeyword("_ALPHABLEND_ON");
material.DisableKeyword("_ALPHAPREMULTIPLY_ON");
material.renderQueue = -1;
material.SetFloat("_Mode", 0.0f);
break;
default:
Debug.LogWarning("Warning: BlendMode: " + blendMode + " is not yet implemented!");
break;
}
}
}
[RequireComponent(typeof(MeshRenderer))]
public class TestScript : MonoBehaviour
{
[SerializeField] private MeshRenderer mr = null;
[SerializeField] private float alphaChange = 0.5f;
private bool isOpaque = true;
private void Awake()
{
if (mr == null)
mr = GetComponent<MeshRenderer>();
}
private void OnMouseDown()
{
// store our color struct and change the alpha channel
Color clr = mr.material.color;
clr.a = alphaChange;
// instance our material to alter the rendermode
Material mat = mr.material;
// update our render mode to transparent and our color to the new alpha
MaterialUtils.SetupBlendMode(mat, isOpaque ? MaterialUtils.BlendMode.Transparent : MaterialUtils.BlendMode.Opaque);
mat.color = clr;
// apply our material change
mr.material = mat;
// toggle our bool
isOpaque = !isOpaque;
}
}
Your original question does not state whether or not you need to toggle the material back to opaque, but I included it. You can keep the RenderMode as Transparent and simply change the alpha back to 1.0f to make it fully opaque again. Again, here's a gif example of the above script in action:
To show that the snippet is working, I place 2 spheres behind the cubes. The snippet is probably a bit overkill for what you need, but if someone else stumbles on the question and needs a more versatile answer here it is!
Color is just a struct and basically just a container of values without further functionality. It is not linked to the Material it was taken from.
By assigning only
color.a = XY;
you do nothing yet.
You have to assign it back to the material!
void OnTriggerStay(Collider other)
{
if (!other.CompareTag("tree")) return;
var material = other.GetComponent<Renderer>().material;
var color = material.color;
color.a = 0.5f;
material.color = color;
}
You're not really setting the color with the code you wrote.
Color color = other.gameObject.GetComponent<Renderer>().material.color;
color.a = 0.5f;
With the first line you take the color from the object and with the second you set the opacity. But you don't assign it back to the object. You can assign the color back to the object and it should work:
other.gameObject.GetComponent<Renderer>().material.color = color;
I have been trying to change the format from a camera that give a texture in Alpha8 to RGBA and have been unsuccessful so far.
This is the code I've tried:
public static class TextureHelperClass
{
public static Texture2D ChangeFormat(this Texture2D oldTexture, TextureFormat newFormat)
{
//Create new empty Texture
Texture2D newTex = new Texture2D(2, 2, newFormat, false);
//Copy old texture pixels into new one
newTex.SetPixels(oldTexture.GetPixels());
//Apply
newTex.Apply();
return newTex;
}
}
And I'm calling the code like this:
Texture imgTexture = Aplpha8Texture.ChangeFormat(TextureFormat.RGBA32);
But the image gets corrupted and isn't visible.
Does anyone know how to change this Alpha8 to RGBA so I can process it like any other image in OpenCV?
A friend provided me with the answer:
Color[] cs =oldTexture.GetPixels();
for(int i = 0; i < cs.Length; i++){//we want to set the r g b values to a
cs[i].r = cs[i].a;
cs[i].g = cs[i].a;
cs[i].b = cs[i].a;
cs[i].a = 1.0f;
}
//set the pixels in the new texture
newTex.SetPixels(cs);
//Apply
newTex.Apply();
This will take alot of resources but it will work for sure.
If you know a better way to make this change please add an answer to this thread.
I'm using Screenshot code to take a screenshot of the screen which is working fine but its also taking the arcore models with it. Is there a way to take a screenshot before models are rendered?
I tried to SetActive(false) then take a screenshot then SetActive(true), it does work but there's a noticeable difference i.e. model disappears than reappears.
Update: This is a script applied on ScreenShotCamera and it is updated after removing all the bugs (thanks to #Shingo), feel free to use it it's working properly
using GoogleARCore;
using OpenCVForUnitySample;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.XR;
[RequireComponent(typeof(Camera))]
public class SnapshotCamera : MonoBehaviour
{
Camera snapCam;
public UnityEngine.UI.Text text;
public RenderTexture mRenderTexture;
int resWidth=480;
int resHeight=800;
// Start is called before the first frame update
public void initialize(ARBackgroundRenderer background, Material material)
{
background = new ARBackgroundRenderer();
snapCam = GetComponent<Camera>();
background.backgroundMaterial = material;
background.camera = snapCam;
background.mode = ARRenderMode.MaterialAsBackground;
if (snapCam.targetTexture == null)
{
snapCam.targetTexture = new RenderTexture(resWidth, resHeight, 24);
}
else
{
snapCam.targetTexture.height = resHeight;
snapCam.targetTexture.width = resWidth;
//resHeight = snapCam.targetTexture.height;
//resWidth = snapCam.targetTexture.width;
}
background.camera.cullingMask = LayerMask.NameToLayer("Default");
//snapCam.CopyFrom(background.camera);
snapCam.gameObject.SetActive(false);
}
public void TakeSnapShot()
{
snapCam.gameObject.SetActive(true);
}
void LateUpdate()
{
if (snapCam.gameObject.activeInHierarchy)
{
snapCam.cullingMask = LayerMask.NameToLayer("Default");
if (ARCoreBackgroundRenderer.screenShot == null)
ARCoreBackgroundRenderer.screenShot = new Texture2D(resWidth, resHeight, TextureFormat.RGB24, false);
snapCam.Render();
RenderTexture.active = snapCam.targetTexture;
ARCoreBackgroundRenderer.screenShot.ReadPixels(new Rect(0, 0, resWidth, resHeight), 0, 0);
ARCoreBackgroundRenderer.screenShot.Apply();
snapCam.gameObject.SetActive(false);
HandPoseRecognition.captureTexture = false;
//string name = string.Format("{0}_Capture{1}_{2}.png", Application.productName, "{0}", System.DateTime.Now.ToString("yyyy-MM-dd_HH-mm-ss"));
//UnityEngine.Debug.Log("Permission result: " + NativeGallery.SaveImageToGallery(ARCoreBackgroundRenderer.screenShot, Application.productName + " Captures", name));
}
}
}
Perhaps I was a little ambiguous, what u mentioned in the comment has already been resolved thanks to you but the problem now is.
I'll show you the images:
These are the 2 cameras I have:
This is what my Main (ARCore Camera) shows
And this is what the (ScreenShot Camera) Shows
You can use layer, put every arcore models in one layer (eg. ARLAYER), then set camera's culling mask to avoid these models.
Pseudo code:
// Set models' layer
foreach (GameObject arcoreModel in arcoreModels)
arcoreModel.layer = ARLAYER;
// Set camera's culling mask
camera.cullingMask = ~(1 << ARLAYER);
camera.Render();
Create screenshot camera from another camera
var go = new GameObject("screenshotcamera");
// Copy transform
go.transform.position = mainCamera.transform.position.
...
// Copy camera
var screenshotcamera= go.AddComopnent<Camera>();
screenshotcamera.CopyFrom(mainCamera);
Update with your script
snapCam = GetComponent<Camera>();
I'm trying to add a label to a PolylineConnection in Draw2d. I'm using the example in java2s as a basis. The problem is that even if I can create the text by using graphics.drawText() on the paintFigure method from the PathFigure object (that extends PolylineConnection), the label is cut out most of the time, as shown in these captures:
To me, it looks like the bounds of the figure are leaving part of the text outside from the paint area, as it does indeed paint correctly in diagonal arrows, which have bigger bounds.
I have tried to set explicitly the bounds of the object, both in constructor and paint methods, but it seems like the PolylineConnection is ignoring them. Any idea of how to solve this or if there is another way of achieving this kind of label?
Please use below figure for your connection figure.
import org.eclipse.draw2d.Label;
import org.eclipse.draw2d.MidpointLocator;
import org.eclipse.draw2d.PolygonDecoration;
import org.eclipse.draw2d.PolylineConnection;
public class LabelConnectionFigure extends PolylineConnection {
protected Label label;
public LabelConnectionFigure() {
setTargetDecoration(new PolygonDecoration());
MidpointLocator labelLocator = new MidpointLocator(this, 0);
label = new Label("1");
label.setOpaque(true);
add(label, labelLocator);
}
public void setLabelText(String labelText) {
label.setText(labelText);
}
public String getLabelText() {
return label.getText();
}
}
Flash AS3:
I just need to know how to check a condition for roll over effect on similar colour movieclips which is near by in a group of random colours movieclips in a grid whereas it is using 2D Array in flash AS3.or
I just need roll over event which i wrote is onBoxOver event function, in that the object which i am targetting is only getting rollover or getting alpha changes. But i need to know how to make rollover for similar colour which are all nearby.
The code which i wrote is below for your reference.
Flash AS3::
package
{
import flash.display.MovieClip;
import flash.events.MouseEvent;
public class playGame extends MovieClip
{
public static var totalRowBoxes:Number = 13;
public static var totalColumnBoxes:Number = 12;
public static var rowGap:Number = 30;
public static var columnGap:Number = 30;
public static var totalColorBoxes:Number = 8;
public static var boxCollection:Array = new Array();
public static var boxCollection1:Array = new Array();
public function playGame(theGame:main)
{
// constructor code
addBoxOnStage();
}
private function addBoxOnStage():void
{
var borderCont:Banner = new Banner();
var scoreclipCont:scoreclip = new scoreclip();
addChild(borderCont);
addChild(scoreclipCont);
scoreclipCont.x = 0;
scoreclipCont.y = 0;
createLevel(1);
for (var i:Number = 0; i<totalRowBoxes; i++)
{
boxCollection[i] = new Array(i);
for (var j:Number = 0; j<totalColumnBoxes; j++)
{
var squareCont:square = new square();
squareCont.x = 30 + (i * rowGap);
squareCont.y = 30 + (j * columnGap);
squareCont.name = i + "_" + j;
var boxCollection1:Array = new Array();
boxCollection1[0] = Math.round(Math.random() * 8);
boxCollection1[1] = squareCont;
var boxColour:Number = new Number();
boxColour = boxCollection1[0];
boxCollection[i][j] = boxCollection1[1];
addChild(squareCont);
squareCont.gotoAndStop(boxCollection1[0]);
squareCont.addEventListener(MouseEvent.MOUSE_OVER, onBoxOver); squareCont.addEventListener(MouseEvent.MOUSE_OUT, onBoxOut);
squareCont.addEventListener(MouseEvent.CLICK, onBoxClick);
}
}
}
private function onBoxClick(eve:MouseEvent):void
{
}
private function onBoxOver(eve:MouseEvent):void
{
for (var i:Number=0; i< totalRowBoxes; i++)
{
for (var j:Number=0; j<totalColumnBoxes; j++)
{
eve.target.alpha = 0.3;
// trace(boxCollection[i][j].currentFrame)
trace(eve.target);
}
}
}
private function onBoxOut(eve:MouseEvent):void
{
eve.target.alpha = 1;
}
private function createLevel(lvl):void
{
}
}
}
![My Game screenshot here colourbox][1]
Thanks in Advance. Greatly Appreciable for the reply.
Hi this is the image or screenshot of my project. In that image there are 8 colours randomly arranged. whenever i make mouse position or rollover on any box , the condition should check whether the same colour occurs around the box(eg.top, down, left, right) which i am making rollover.
1.If the same colour occur on the top of the box which i am pointing the cursor , the top box and the box which i am pointing both should get less alpha, else only the pointing box should get less alpha. this is my concept friends. please go through the image and let me know if u have any doubts.
I am still unsure what you mean by 'nearby'. (neighbour tiles? adjacent of similar colour?...)
If 'nearby' means adjacent, you need to read about flood fill algorithms. There is a good wiki article about this. You would use that to crawl through the list of tiles similar enough to trigger the effect you want.
I also don't know what 'similar' colour means in your project. You will need a method to determine weather two colours are similar. There is a stackoverflow question re: similar colour detection. It has a good answer to start you out in your research. look here.