So I'm making a card game and want my users to be able to create custom cards and not only use them in the game but also be able to print them.
Currently, I'm stuck on converting the UI GameObject of the card into a single image.
The card GameObject has a template card background, several other images (resources, main image, etc), and multiple text boxes (title, type, and description). Then I want to take that card hierarchy and convert it to a single image.
I thought this would be a fairly simple task but it appears to be a non-trivial... Or am I being a melon here?
Good question !
A button calling Capture below upon press and some GameObject image to capture:
Code:
using System.IO;
using UnityEngine;
public class NewBehaviourScript : MonoBehaviour
{
public GameObject GameObject;
public void Capture()
{
var rectTransform = GameObject.GetComponent<RectTransform>();
var delta = rectTransform.sizeDelta;
var position = rectTransform.position;
var offset = new RectOffset((int) (delta.x / 2), (int) (delta.x / 2), (int) (delta.y / 2), (int) (delta.y / 2));
var rect = new Rect(position, Vector2.zero);
var add = offset.Add(rect);
var tex = new Texture2D((int) add.width, (int) add.height);
tex.ReadPixels(add, 0, 0);
var encodeToPNG = tex.EncodeToPNG();
File.WriteAllBytes("card.png", encodeToPNG);
DestroyImmediate(tex);
}
}
In short, get object rect on screen, copy pixels, voila!
Result:
Related
I'm trying to get all tiles around the player in unity 2d tileset.
What I would like to happen when player presses U I Would like to get all tiles surrounding the player including the one underneath the player or simply the one 1 tile in front of them.
I'm trying to make a farming Game where when the player pulls out an item it will highlight on the tilemap where they are about to place it.
Please note I'm not asking for full code, I just want what ever solution allows me to get tiles near the players position
Edit, found a solution by editing someone elses code but im not sure if there's a better way, if not I would also like this to work based on player rotation currently it places a tile above the player. Code Source https://lukashermann.dev/writing/unity-highlight-tile-in-tilemap-on-mousever/
using System.Collections;
using System.Collections.Generic;
using Unity.Mathematics;
using UnityEngine;
using UnityEngine.Tilemaps;
public class PlayerGrid : MonoBehaviour
{
private Grid grid;
[SerializeField] private Tilemap interactiveMap = null;
[SerializeField] private Tilemap pathMap = null;
[SerializeField] private Tile hoverTile = null;
[SerializeField] private Tile pathTile = null;
public GameObject player;
private Vector3Int previousMousePos = new Vector3Int();
// Start is called before the first frame update
void Start()
{
grid = gameObject.GetComponent<Grid>();
}
// Update is called once per frame
void Update()
{
var px = Mathf.RoundToInt(player.transform.position.x);
var py = Mathf.RoundToInt(player.transform.position.y);
var tilePos = new Vector3Int(px, py, 0);
if (!tilePos.Equals(previousMousePos))
{
interactiveMap.SetTile(previousMousePos, null); // Remove old hoverTile
interactiveMap.SetTile(tilePos, hoverTile);
previousMousePos = tilePos;
}
// Left mouse click -> add path tile
if (Input.GetMouseButton(0))
{
pathMap.SetTile(tilePos, pathTile);
}
// Right mouse click -> remove path tile
if (Input.GetMouseButton(1))
{
pathMap.SetTile(tilePos, null);
}
}
}
try to use the layer field inside the inspector, you can create new Layers inside the Project Manager and there you can easily create Layers like "Background" "Scenery" "Player" "Foreground".. after this you can assign them individually to your Tiles also its important to have different grids otherwise you will not be able to assign different layers to it i hope it worked already
I created a pin object by script attached it to a sphere object .
using UnityEngine;
public class InstantiateMarkerPin : MonoBehaviour
{
public float Xpos;
public float Ypos;
public float Zpos;
public GameObject gameObjectPinInstantiate;
// Start is called before the first frame update
private void Start()
{
Xpos = 0.09f;
Ypos = 0.50f;
Zpos = 1.1f;
//The original object, where to instantiate, and the orientation of the new object
GameObject marker = (GameObject)Resources.Load("gameObjectPin");
Vector3 location = new Vector3(Xpos, Ypos, Zpos);
Quaternion rotation = Quaternion.Euler(0, 0, 0);
//The object the script is attached to
GameObject world = this.gameObject;
//Instantiate the prefab
gameObjectPinInstantiate = Instantiate(marker, location, rotation, world.transform);
Debug.Log("InstantiateMarkerPin class : Marker Location 2 :X, Y, Z : " + gameObjectPinInstantiate.transform.position);
}
// Update is called once per frame
private void Update()
{
}
}
This script is attached to the sphere Object .My sphere Object have shader material of earth image (globe).
This Instantiated Prefabs (gameObjectPin) on sphere surface appears on scene but not on game screen ,When I select the camera object in the camera preview also this object does not appear .
Scene view
Scene View when camera is selected
I am new to Unity what should I check or correct to appear my created object on the sphere
basically I am trying to add pins to corresponding country and label it .Similar to the globe on this http://kitsdmcc.com/news
Gameobject is created when Play is clicked on the sphere object
When the Pin Object is selected on play mode
Oh now I see it! What you did was only setting its GIZMO via this menu
which is only displayed in the SceneView.
This has nothing to do with the rendering in the GameView but is just a way for easier seeing and finding certain types of objects in the SceneView since usually they would be invisible if not selected.
From the Glossary:
A graphic overlay associated with a GameObject
in a Scene
, and displayed in the Scene View
. Built-in scene
tools such as the move tool are Gizmos
, and you can create custom Gizmos using textures or scripting. Some Gizmos are only drawn when the GameObject is selected, while other Gizmos are drawn by the Editor regardless of which GameObjects
are selected.
As noted in the comments there is no Component at all on your GameObject so nothing is rendered in the Gameview.
Of course now you could enable Gizmos also for the GameView via the Gizmos toggle
but I guess what you rather are trying to achieve is rather rendering that icon in the final App.
You probably would like to use e.g. the SpriteRenderer component here. And simply drag in your Icon to the Sprite property.
You might have to change the Pin Texture's TextureType to Sprite (2D and UI).
In general I would also recommend to Create a Prefab instead of using the Resources folder here.
There are also some changes I would do to your code in general:
public class InstantiateMarkerPin : MonoBehaviour
{
[Header("Settings")]
// directly use a Vector3 for setting the values
// | default value for this field
// | (only valid until changed via Inspector!)
// v
public Vector3 TargetPosition = new Vector3(0.09f, 0.5f, 1.1f);
// Instead of using Resources simply reference the
// created Prefab here
public GameObject gameObjectPinPrefab;
[Header("Outputs")]
public GameObject gameObjectPinInstantiate;
private void Start()
{
// Careful this currently ovewrites any value set via the
// Inspector. Later you will probably want to remove this.
TargetPosition = new Vector3(0.09f, 0.5f, 1.1f);
//As said I would rather use a prefab here and simply reference it above in the field
//gameObjectPinPrefab = (GameObject)Resources.Load("gameObjectPin");
//Instantiate the prefab
gameObjectPinInstantiate = Instantiate(gameObjectPinPrefab, TargetPosition, Quaternion.identity, transform);
Debug.Log("InstantiateMarkerPin class : Marker Location 2 :X, Y, Z : " + gameObjectPinInstantiate.transform.position);
}
// Always remove empty Unity methods
// They are called as messages if they exist
// and only cause unnecessary overhead
}
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 working upon an algorithm that is based on Hand gesture recognition. This algorithm i found and run on Winform with c# scripts. The same technique i need to use in my game to perform hand gesture detection through webcam. I tried to use the algorithm in my game scripts but unable to capture any image using the algorithm. Below is the code that i'm currently working upon. I'm using aForge.net framework to implement the idea of motion detection. The bitmap image always returns null. However using the same algorithm in winform it captures image on every frame changed. I know there is a technique of using PhotoCapture in unity but i'm not sure how do i use it at runtime on every frame. Every guidance is appreciated. Thanks!
OpenCamera.cs
using AForge.GestureRecognition;
using System.Collections;
using System.Collections.Generic;
using System.Drawing;
using UnityEngine;
using System.Drawing.Design;
using UnityEngine.VR.WSA.WebCam;
using System.Linq;
using System;
public class OpenCamera : MonoBehaviour {
// statistics length
private const int statLength = 15;
Bitmap image;
PhotoCapture photoCaptureObject = null;
Texture2D targetTexture = null;
// current statistics index
private int statIndex = 0;
// ready statistics values
private int statReady = 0;
// statistics array
private int[] statCount = new int[statLength];
private GesturesRecognizerFromVideo gesturesRecognizer = new GesturesRecognizerFromVideo();
private Gesture gesture = new Gesture();
private int gestureShowTime = 0;
// Use this for initialization
void Start()
{
WebCamTexture webcamTexture = new WebCamTexture();
Renderer renderer = GetComponent<Renderer>();
renderer.material.mainTexture = webcamTexture;
webcamTexture.Play();
}
// Update is called once per frame
void Update ()
{
gesturesRecognizer.ProcessFrame(ref image);
// check if we need to draw gesture information on top of image
if (gestureShowTime > 0)
{
if ((gesture.LeftHand == HandPosition.NotRaised) || (gesture.RightHand != HandPosition.NotRaised))
{
System.Drawing.Graphics g = System.Drawing.Graphics.FromImage(image);
string text = string.Format("Left = " + gesture.LeftHand + "\nRight = " + gesture.RightHand);
System.Drawing.Font drawFont = new System.Drawing.Font("Courier", 13, System.Drawing.FontStyle.Bold);
SolidBrush drawBrush = new SolidBrush(System.Drawing.Color.Blue);
g.DrawString(text, drawFont, drawBrush, new PointF(0, 5));
drawFont.Dispose();
drawBrush.Dispose();
g.Dispose();
}
gestureShowTime--;
}
}
}
As mentioned in the comments (which I am not able to reply to at the moment) those libraries always heavely depend on system.drawing libraries, which are kind of windows only.
What you could try is downloading the drawing library dll (or copying from your system folder) into your unity project (it's managed code, so it'll run on every exportable platform) to keep teh references. Then you could capture a texture2d every frame (rendertextures or so) and draw those pixels into a bitmap which is fed to the library.
Note that copying thousands of pixels every frame is really really heavy. you'd have to convert the UnityEngine.Color to System.Drawing.Color...
This is the easies solution that might work. But definitly not a good final one.
I am working on a 2D game and have created a game object using C# script as below. I also set my camera to orthogonal and have adjusted my sprite based on the width of the screen. Regardless of the position I set, the object is always at the center of the screen. How can I solve this?
using UnityEngine;
using System.Collections;
public class TestingPositions : MonoBehaviour {
GameObject hero;
Sprite heroSprite;
Vector3 heroPosition;
// Use this for initialization
void Start () {
hero = new GameObject ();
Instantiate (hero, heroPosition, Quaternion.identity);
Camera camera = GameObject.FindGameObjectWithTag ("MainCamera").GetComponent<Camera> ();
heroPosition = camera.ScreenToWorldPoint(new Vector3(Screen.width/4, Screen.height/4, camera.nearClipPlane));
heroSprite = Resources.Load <Sprite> ("Sprites/heroImage");
SpriteRenderer renderer = hero.AddComponent<SpriteRenderer>(); renderer.sprite = heroSprite;
}
}
when you use Instantiate you have to use it on
an existing model.
Instantiate means "duplicate this model" or "copy this model", or "make a new one, using this model as an example".
What you are doing, is creating a brand new empty "hero" game object - and then "instantiating" it. That is meaningless and does nothing.
What you must do whenever you want to use "Instantiate" is this:
public GameObject modelPerson;
Note that the name must be "modelSomething".
first put that in your code. LOOK at the Inspector. MAKE your actual model hero (or whatever it is)
Sit it somewhere off camera where it is not seen.
Now, drag that thing to the "modelPerson" slot in the Inspector.
If you are not familiar with the basics of using Inspector-dragging in Unity, review basic Unity tutorials https://unity3d.com/learn/tutorials/topics/scripting
Next in your code, perhaps in Start, try this
GameObject newHero = Instantiate( modelPerson );
newHero.transform.position = .. whatever you want
newHero.transform.rotation = .. whatever you want
newHero.name = "Dynamically created";
newHero.transform.parent = .. whatever you want
once you understand these basics, there is very much more to learn about Instantiate. You can ask that in separate questions. Good luck.
Your need to save the reference to your gameObject that is created with Instantiate, because Instantiate makes a copy not modifies the original.
To modify a gameobjects position after instantiation, you need to use gameobject.transform.position = newPosition; To modify it before instantiation, you would need to do the "heroPosition" line before using heroPosition in Instantiate.
So like this:
using UnityEngine;
using System.Collections;
public class TestingPositions : MonoBehaviour
{
GameObject hero;
SpriteRenderer heroSprite;
// Use this for initialization
void Start()
{
Camera camera = GameObject.FindGameObjectWithTag("MainCamera").GetComponent<Camera>();
//Save the reference to the instantiated object into a variable
//Since you are creating an object from scratch, you don't even need Instantiate, which means copy - not create.
hero = new GameObject();
//Set its position
hero.transform.position = camera.ScreenToWorldPoint(new Vector3(Screen.width / 4, Screen.height / 4, camera.nearClipPlane));
//Set its rotation
hero.transform.rotation = Quaternion.identity;
//Add sprite renderer, save the reference
heroSprite = hero.AddComponent<SpriteRenderer>();
//Assign the sprite
heroSprite.sprite = Resources.Load<Sprite>("Sprites/heroImage");
}
}