color-blending Questions

6

Solved

I have two SKSpriteNode and their colors are defined like this: colorNode[0].color = UIColor(red: 255, green: 0, blue: 0, alpha: 1) colorNode[1].color = UIColor(red: 0, green: 255, blue: 0, alpha:...
Condonation asked 7/12, 2014 at 12:46

2

I have two colors, c₀ and c₁. They have variable alpha, red, green and blue values: (a₀, r₀, b₀, g₀) and (a₁, r₁, b₁, g₁). I'm wondering if there is a simple formula for combining these colors to o...
Initial asked 6/3, 2015 at 14:12

2

Solved

How can I add Shades to the edges of an Image in flutter, so that white overlayed text would be readable? I want it to look just like in the Contacts app: I've already checked the Image class, bu...
Monazite asked 26/5, 2018 at 12:57

2

Solved

I am taking two images in python and overlapping the first image onto the second image. What I would like to do is blend the images where they overlap. Is there a way to do this in python other tha...
Grettagreuze asked 17/3, 2015 at 18:13

2

Solved

When dealing with overlapping high density scatter or line plots of different colors it can be convenient to implement additive blending schemes, where the RGB colors of each marker add together to...
Indefeasible asked 2/11, 2014 at 17:25

6

Solved

I'm trying to blend two colors that are coded as integers. Here is my little function: int blend (int a, int b, float ratio) { if (ratio > 1f) { ratio = 1f; } else if (ratio < 0f) { rati...
Jahdai asked 16/10, 2013 at 8:10

1

I’m working on an app that creates images whose hue, saturation, and value change according to different parameters. For performance reasons, it would make sense to render the hue, saturation, and ...

1

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I saw this Java code that does a perfect 50% blend between two RGB888 colors extremely efficiently: public static int blendRGB(int a, int b) { return (a + b - ((a ^ b) & 0x00010101)) >&g...

2

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Is there any way in Android to use a GLSurfaceView to display the camera preview, while using OpenGL effects on that surface? Specifically additive blending effects. I know OpenGL can use the effec...
Knowhow asked 25/5, 2011 at 19:43

1

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I have an three.js object which is a given colour. I want to animate it smoothly to another colour. During the animation, it should only show a direct gradation between the start and end. That is, ...
Gearing asked 19/9, 2012 at 23:54

1

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Question was answered. For more information, check out EDIT #4 at the end of this text. We are currently working on a gamemaking engine which is going pretty well. I am working on the Animation Cr...
Bibliotherapy asked 29/8, 2012 at 4:29

2

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I am designing a Photoshop-style web application running on the HTML5 Canvas element. The program runs well and is very speedy until I add blend modes into the equation. I achieve blend modes by me...
Outstare asked 3/8, 2012 at 2:30

3

Solved

Basically, I have a context where I can't programatically tint an image, though I can change it's alpha value. With some experimentation, I've found that I can layer a red, blue, and green version ...
Injurious asked 8/1, 2010 at 20:20

3

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In digital imaging, when overlaying two visual layers there are multiple ways you can calculate the image that results when light from a lower layer shines through an obstructing layer in some way....
Unfolded asked 1/11, 2009 at 9:51
1

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