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Questions tagged [compositing]

Compositing is the combining of visual elements from separate sources into single images.

See Digital compositing on Wikipedia.

61 questions
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Stretching and overlaying bitmaps in C++

I'm working with Vis. Std 2010 Cpp and I've been trying to figure out how to create a bitmap from two existing bitmaps. I don't really want to use two gl_drawbitmap functions, one for each, but rather create a third bitmap and gl_drawbitmap THAT…
Compy
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The Foundry Nuke's Reformat node issue

I wanted to track my footage and add CG elements to it as part of my nuke project. For that purpose, I undistorted the footage & wrote it down to disk for faster processing. However, when I tried to re-distort the written footage (as shown in…
akshay7692
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GIMP's method of layer compositing/blending

In my quest to add alpha capacity to my image blending tools in Matlab, I've come across a bit of a snag. Among others, I've been using these links as my references as to how foreground and background alpha plays into the composition of both the…
DGM
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Nuke Accessing Wrong Version of Python

I am experiencing a very similar problem to this one: Using multiple versions of Python The context of my problem though I believe is different enough to warrant a separate question. I receive this error when trying to launch the non-commercial…
Tyler H
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Mask CALayer with a composite CALayer?

I have a main layer, that has a mask layer. The mask layer has also sublayers (to change layouts within resulting different mask shapes). But the mask sublayers have no effect on the actual masking. :( Is there something I can do with the mask…
Geri Borbás
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Writing a compositing window manager with python and xlib

I'm writing a simple window manager as a hobby project, and I've chosen python and xlib to implement it. I'd like to have some fancy effects like windows sliding from left and right, and from what I've been able to dig up, the best way to go about…
migimunz
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Threaded compositing for producing iOS-like scrolling?

What is threaded compositing? It was referred to in a recent Paul Irish Post as a means to produce iOS-like scrolling: I searched chrome about:flags but wasn't able to find what Paul was referring to. I assume it has something to do with how…
tim peterson
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Empty UIView with minimal drawRect: overhead

I have an application that has three nested views that are mechanically important, but have no visual elements: A vanila UIView that doesn't have any content of its own, and is simply used as a host for CALayers. A UIScrollView (that is queried for…
Benjohn Barnes
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Don't erase background for visual trace in Quartz Composer

I it possible NOT to clear the background in Quartz Composer? I want to move an image across the screen and keep it visible at the old positions to have some sort of trace effect. Thanks and regards, Sebastian Mecklenburg
Sebastian Mecklenburg
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Real-time video compositing using HD footage, controlled by script

I have been asked to construct a system for showing non-linear artworks on an HD screen, I need to be able to mix multiple streams of video together (ie using alpha maps) in real time and I also need to be able to script the sequence so I can mix…
john bowring
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Applying destination-out compositing in SVG

I'd like to apply destination-out compositing to my SVG so that one shape can "erase" other, existing shapes. According to what I've read on the documentation for the SVG element, this should work, but it doesn't produce the desired…
Abraham
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Implementing Porter-Duff Rules in Direct3D

What Direct3D render states should be used to implement Java's Porter-Duff compositing rules (CLEAR, SRC, SRCOVER, etc.)?
Neal
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No compositing effects on quiting the gtk application

I want to quit my gtk application automatically after a certain time. How do I properly do this? My issue is, that while the window closes and the program exists, no window effects through compton appearto work, such as fading. This is my…
Natjo
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CIFilter blending mode that results in only bright, saturated colors in Swift

I'm using the CICategoryCompositeOperation CIFilter category in attempt to apply an effect to an image that results in only displaying bright, saturated colors and removes everything else including black and white, and colors below a certain…
Chewie The Chorkie
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How is CIAdditionCompositing different from componentAdd?

Core Image offers two ways to add two images: CIAdditionCompositing and componentAdd. I could use either to sum up the pixel values in two images. Are they different except for the latter being supported only on iOS 11? For example, does one do the…
Kartick Vaddadi
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