how to make background or how to arrange a sprite backwards - unity3d

I just want to make a background but when I tried to pull a background photo in, it's in front of all the other sprites, so how can you make it go backwards.

You have 2 ways for that. The easiest would be just to change the z-order of the background to a value greater than your other sprites. For instance when you have a character and a background you would use 1 for the backgrounds z-order and 0 for the characters z-order.
So just click on your background sprite and in the inspector type 1 for the z-poition. Same for your character or whatever sprite you have, but this time make sure its 0 in the z-position.
The better approach is ofcourse to use layers. When you click on a sprite you will see a sprite component in the inspector attached to it by Unity automatically. In this component there is a "Order in Layer" property".
Now if you change the backgrounds order in layer property to -1 and all your other sprites have a greater value for example 0,1,2.... then the background will be pushed to back as this is its order in that particular layer.
You can also use the sorting layer property and add your own layers. Its probably the best method, but the 2 above should get you achieve what you want.

Related

Particles are in front of UI elements in unity

So all i'm looking for is simple. I want the UI elements such as Buttons/Logo/..etc to be in front any particle effects in the Canvas.
In the answer Here someone suggested to add a canvas component to each and every UI element I want to show in front of the particles and that work somehow the only problem in this way the buttons won't click at all.
All elements are on the default sorting layer including the particles object and the camera.
Is that hard to do that?
Please help.
set "Order in layer" of Particles to 0 and UI elements to 1 or a better way of doing this is to go to add new layers, create a foreground and background layer, set foreground to 1 and background to 0 and then change from the default layer to which ever you want in front or back.
My solution was to change the material I was using in the particle system. Change "Sprite-Default" to a material with "Rendering Mode" Opaque and "Shader" to "Standard".

Unity - Guidelines for color isolation effect

I would like to highlight two objects in Unity so that they stand out. But instead of actually highlighting them, which I already know how to do, I would instead like to have some kind of color isolation effect, like the one we can see in the picture below :
However, I really have no idea about how I could acheive this !
Could I use some post processing effects to remove the saturation, expect for a set of objects ?
Should I instead desaturate all the materials of all the objects in the scene and also desaturate the sun color ?
Should I apply to all the other objects in the scene a shader that only renders grayscale colors ?
Could you point me into the right direction ? Thank you.
One approach would be:
- Add a desaturate post process to your main camera and set its culling mask to everything(but turn off the effect)
- Create a second camera, make it a child of the first one (so it keeps the same rotation and position) and set its culling mask to something else (a layer where you will place your highlighted objects)
- When an object needs to be highlighted, add it to the highlights layer and desaturate the main camera. The object will stay colored because it is rendered by the camera that does not have the desaturation effect.
You'll have to play with the "Clear Flags" option of both cameras to get this to work correctly
Still using LWRP Post Processing stack, but I'd add a Color Grading effect and use that to 'tune' your unwanted colours to grey.

Unity3D - Set a (foreground) UI layer which ignores mouse clicks?

I'm currently writing up a UI-Centric game, and I've added a small image overlay over some elements on screen. However, the problem is that now I can't click any buttons behind this overlay image, regardless of transparency etc.
Just to chance it, I set up a new layer called "noUIclick" and set it to ignore every other layer under physics settings - long shot I know, but no dice. Tried also simply swapping to 3D view and moving the overlay image back on the z-axis.
Is there any easy way to set a layer for UI components which will entirely ignore/allow for passthrough of mouseclicks onto the buttons in the background?
On the Image component, uncheck raycastTarget.

How can I create a tile, overlay for a scene in Cocos2d?

I'm new to Cocos2d, but I can't seem to find the answer to this. I want to add an image that is mostly transparent as an overlay to my application. The image is overlayed on the app, and does not respond to screen taps. All gestures should "pass through" to the application.
The overlay image should actually be tiled. It's a small image that should repeat both horizontally and vertically.
How can I do this? In fact, this is an overlay that I would like to display for the duration of the entire application-- not just one specific scene. Is there a simple way to do this?
The point of my overlay is that I'd like to create a pseudo-scan line affect for a game which has an "8-bit" tone. The scan lines will be generated by applying the overlay to the game. The overlay is non-interactive and should always exist. So, this isn't a "tile based game", but I do need a tiling affect for this functionality.
You should be able to create a layer in each scene, set the zOrder to something large so that it overlays everything else, and set its isTouchEnabled attribute to NO. You can then add whatever you want to the layer, which could be your patterned image. To change the alpha, just set the opacity attribute of your image. The only issue that I can foresee is that the overlay might disable touch events for layers below it.

Cocos2d mask layer (tilemap lighting)

I'm trying to add lighting to a certain extent within my tilemap based iPhone game. For lack of a better example, I'm trying to add minecraft style lighting - the further a tile is from the light source the greater "dark" tint it has.
The most efficient way I can think of doing this would be to add some type of mask over the tilemap layer in order to create this effect and simply move the masks with the tilemap as the player moves around.
I haven't been able to find any documentation on how to add masks to an entire layer, is this possible? Or is it bad practice? Or can you think of a better possible method for achieving this effect?
The simplest and most efficient solution would be to modify the color property of a tile. By default all nodes have the color "white" and by applying gray colors between black & white you'll be able to control the brightness of the tile.
Note however that when you do treat a tile like a CCSprite, cocos2d will change the tile from its basic implementation and change it into a CCSprite. This may become a performance and/or memory issue. Each CCSprite instance was 420 Bytes last time I checked in cocos2d 0.99.