Masking is a digital image processing term simialar in concept to bitmasking. An image mask is applyed pixel-by-pixel to other image and behaves like a sieve to color values.

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4answers
2k views

A Simple Method To Create Island Map Mask

I'm searching for a nice and easy way to generate a mask for an island map with C#. Basically I'm using with a random heightmap generated with perlin noise, where the terrain is NOT surrounded by ...
16
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2answers
3k views

Best way to mask 2D sprites in XNA?

I currently am trying to mask some sprites. Rather than explaining it in words, I've made up some example pictures: The area to mask (in white) Now, the red sprite that needs to be cropped. The ...
5
votes
1answer
2k views

Unity 4.3 (2D) Rendering only the parts of a sprite that are within specific bounds

I'm working in Unity, using the 2D features to recreate the match-3 style of 10000000 (Ten Million). I have a parent object (green square) with several children objects (blue rectangles) on top of ...
4
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1answer
1k views

Faking 2d light using shader (Unity, Shaderlab)

Since the concept was difficult to explain in words for someone who's not quite familiar with shader, I described it in pictures. I'm currently using Unity and it seems Shaderlab is the best choice ...
3
votes
1answer
60 views

Desaturate texture using mask in OpenGL 2

I have a very large texture i am using as background and i want to apply a filter to a small part of it, the "small part" is defined by the alpha layer of another texture i have (which is still ...
3
votes
1answer
300 views

cocos2d mask rotation

I've been experimenting with Ray Wenderlich's tutorial about masking sprite using shaders with cocos2D 2.0. It works pretty well but now I'd like to rotate the mask independently of the masked ...
3
votes
0answers
121 views

How to use a mask texture with Kobold2D

I am an iOS developer but I'm new to cocos2d. I'm working on new game, I use Kobold2D, have cocos2d installed too, and I want to make this effect: I know how is done with Flash, but can't make it ...
2
votes
1answer
193 views

Masking OpenGL texture by a pattern

Tiled terrain. User wants to build a structure. He presses build and for each tile there is an "allow" or "disallow" tile sprite added to the scene. FPS drops right away, since there are 600+ tiles ...
2
votes
2answers
91 views

How to do masking in Unity?

I'm trying to make a searchlight style punchout mask effect in unity 2d. I want to achieve this sort of effect: I made that animation in fireworks, using a white to black gradient circle masked on ...
1
vote
1answer
197 views

How to only render part of an image in lwjgl/openGL

I'm making a mining/building game in java using slick2D and I want to make it so you can only see a few blocks in any direction while you are underground. The best example I could find of what I want ...
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vote
0answers
13 views

Unity Free Inverse Depth Mask?

How would it be possible to create an inverse depth mask? In this case, I refer to a depth mask as a shader attached to a mesh that 'pokes a hole' through the current camera layer to let you see the ...
1
vote
1answer
996 views

How to crop or mask a sprite to a specific shape in Unity (2D)?

I'm trying to do a procedural 2D terrain generation. I've managed to make the function to generate the points, and I've been testing/debugging by creating the terrain using a 2D polygon collider on an ...
1
vote
1answer
85 views

Masking away part of image with mesh

I need to remove a section of an image using a 2D mesh. Since the image is destructible (artillery game style), it would be helpful to shrink the image in memory afterward. The portion in the blue ...
1
vote
2answers
218 views

How are red dot/reflex/holographic sights implemented?

In first-person-shooters like Call of Duty, the hologram only appears when it is behind the glass portion of the sight. In OpenGL, would it be implemented by rendering the glass to the stencil buffer ...
0
votes
1answer
377 views

How do I check on non-transparent pixels in a bitmapdata?

I'm still working on my window cleaning game from one of my previous questions I marked a contribution as my answer, but after all this time I can't get it to work and I have to many questions about ...
0
votes
1answer
421 views

theoretical solution for “drawing” with mask

So am trying to create a make-up game and i need to have a basic drawing solution, and so far i have made a good progress with the help of the DepthMask solution My approach was like this : suppose ...
0
votes
0answers
25 views

Can Layer Masks Achieve This Effect

If you look at the image below you will see the player surrounded by a dotted yellow box. The dotted yellow box is also part of the player and represented a portion of the player being masked from ...
0
votes
1answer
58 views

Warp GameObject Size When Entering/Leaving Area

Below I have an image describing the desired functionality I am going for. Let's say you control a square and when you move this square into a given area, any part of your rigidbody/model inside of ...
0
votes
0answers
27 views

Is it possible to mask over CameraUI AS3?

My idea is to use the CameraUI to take a photo and then transpose that photo onto a blank sprite. So I want to have a mask layer over the CameraUI to line up the object with the size of the sprite. ...
0
votes
0answers
20 views

XNA alpha channel mask

I'm trying to highlight a portion of the screen, such that the entire screen is covered with a semi-transparent black mask but part of that mask is "cut out", kind of like it's being lit up while ...
0
votes
0answers
32 views

XNA 2D Stencil Buffer Rotation

I am currently working on a 2d game related to planets and am trying to get a stencil buffer working with rotation. I currently have a stencil buffer found from another related answer but it refuses ...