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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.

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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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How to get correct SourceOver alpha compositing in SDL with OpenGL

I am using an FBO (or "Render Texture") which has an alpha channel (32bpp ARGB) and clear that with a color that is not fully opaque, for example (R=1, G=0, B=0, A=0) (i.e. completely transparent). Then I am rendering a translucent object, for…
dialer
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How to tackle display tearing during drawer animations

I'm using a 3rd party drawer that allows bottom- and top-edge drawers (https://gist.github.com/patrickfav/6284130 MultipleOrientationSlidingDrawer). When I animate opening of the drawer, I get display tearing but only under particular circumstances.…
Robin Davies
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Soft, transparent paint stroke textures not blending like I expect

I'm trying to implement soft brushes into my GL 4.5 application. I've achieved 100% hard brushes but the soft brush functionality is sub par. This type of paint mode I'm trying to achieve is referred to as "wash" painting in Krita and is the normal…
bvs
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Compositing: how to change canvas new drawings dynamically based on selected option from radio button?

I had a related question months ago regarding coloring canvas via Compositing (HTML5 Canvas). I do somehow understand how it works now when I encountered it again. But my question today, is it possible to change the layering of the drawn pixels via…
novice
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X11 and ARGB visuals: does DefaultDepth() never return 32?

I'm establishing a connection to the X server like this: display = XOpenDisplay(NULL); screen = DefaultScreen(display); depth = DefaultDepth(display, screen); I'm wondering now why "depth" is always set to 24. I would expect that it is only 24 when…
Andy
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OpenGL window manager - multiple process compositing

I'd like to design a simple window manager capable of compositing the outputs from multiple processes. My first idea was to only use different threads for standalone applications so I use only one context and share it between the applications' and…
user3735658
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How to embed a Text on bottom of video in Android App in Realtime

I would like to embed a text on a video as it records, then save it in the photo Gallery. When this video is played on any other device this text should show.
Kamrul Hasan
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How to embed text (caption) a video in iOS in realtime?

I would like to embed a text on a video as it records, then save it in the Camera Roll. When this video is played on any other device this text should show
Kamrul Hasan
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How can I use SVG Masks to make a Luma Mask?

I want to make a Luma-Mask (Matte) in SVG. In other words I want to mask a layer to the luminance channel (acquired from the RGB channels) of a different layer. How can this be done? Thanks
Maurice Tempelsman
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Way to detect if WebGL viewport is on screen?

Is there any way to be able to query the GPU to tell me if my viewport in my webpage is currently on screen or not? For example, if I had a 3d scene rendering in a canvas in an iframe, is there a way to query the hardware (within my iframe and only…
xtr33me
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How to launch Nuke with docked panels by default - init.py

I am trying to force docked control panels in Nuke13 by default. When Nuke launches, each node created causes the nodes control panels to float. There is a lock button inside Nuke properties panel to dock them once Nuke is open, but I want this…
CKane
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how do I merged an image into another image

enter image description here Hello, StackOverflow community! I am currently embarking on a project that involves image merging. Specifically, my aim is to develop a feature where the user can upload an image and merge it with a selected template to…
heroku use
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camera tracker in fusion studio in solve and export tab

Want to track the camera of my clip in fusion studio to import it into blender. by using the camera tracker, auto track (in track tab) works, but after that clicking solve (in solve tab) it did not do anything. dont understand the problem. same…
Sonja
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