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Questions tagged [off-screen]

rendering that doesn't involve displaying or printing, usually directed to a buffer or a file.

117 questions
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JavaFX: CSS isn't picked up during offscreen rendering of Text

I'm trying to pre-render some Text elements offscreen to retrieve their widths before rendering them later on-screen: Group offScreenRoot = new Group(); Scene offScreen = new Scene(offScreenRoot, 1024, 768); Set textSet = new…
s.d
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Bootstrap 4.0.0 multilevel hover menu not reacting on page width (goes offscreen)

My multilevel menu with hover is working fine. But the dropdowns should be visible on-screen when pages become too narrow. My menu has menutexts in dutch with tooltips in english (some jquery to get both working at the same time). Almost all li and…
Mother10
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Slide div from off screen (right) and move other divs

I'm setting up a gallery. Images are being placed within a div, adding horizontal scroll if needed. I want to add a div that contains related info which can be slided from off screen (from right) through clicking a link. I managed to realize this as…
sc0
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iPad - No user interaction on view animated on-screen

Alright this is a newbie question, so I apologize in advance. I have a UIView which I laid out in Interface Builder off-screen. When the user presses a button, I would like to animate this view on-screen. It works, but I can't interact with any…
Jacob
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off-screen rendering with GPU support BUT without windowing support

Currently I am using OSMesa for off-screen rendering. I am running it on linux (RHEL) command line interface. It works really well but rendering consumes a lot of time. Basically i run opengl animation off-screen and capture frames on the fly and…
asad
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Is Graphics2D.draw performed if the Shape is offscreen?

I'm currently working on some Rendering Code, and I wondered if Graphics2D.draw(Shape) is performed the exact same way onscreen as offscreen. If it is, is there a way to check if my shape (a Line2D) is onscreen?
RoiEX
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Do graphic operations off-screen incur a processing overhead?

I'm trying to optimise some graphical routines for an app, and I'd like to know if off-screen animations (eg, [object startAnimating]) or just plain moving of a UIImageView by setting its rect (off-screen), have any processor overhead, or are they…
SomaMan
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Android: Negative values for offscreen texture gets clamped to 0

I am using an offscreen rendering to a 2D texture. My first shader will output YUV values and second fragment shader reads YUV from the offscreen texture. In the second shader, I manipulate U and V and make it between -0.5 to 0.5 range. But these…
deeps8us
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Off-canvas search form from the top of the page

I'm trying to do an off-canvas search form for a website. The input form should move down from the top (100% width) of the page pulling the rest of the contents down when the "search" button is clicked. I'm not a pro in javascript so I searched on…
Davide Giorgetta
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Qt create offscreen image then copy parts to onscreen?

I'm using Qt5.5, I want to create an offscreen image then copy specific parts of the offscreen image back to onscreen (visible) area. Can anyone point me to a good example on how to create an offscreen image of a specific size, draw something on it,…
SPlatten
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How does cornerRadius and offscreen rendering affect performance in iOS 9

Setting cornerRadius and masksToBounds will lead to offscreen rendering, so that it will affect the performance when scrolling the table. Though this has been mentioned a lot before, does anyone ever make an experiment about this in iOS 9? Here is…
sevenkplus
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How to create a vertical off-canvas drop down menu in Foundation?

Currently Foundation allows you create off-canvas menus that slide in horizontally from the left or the right. I'd love to know how to create one that could slide vertically from top to bottom: moving the wrapped content downwards. I understand…
Rhys
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Awesomium 1.7.5 webView.ExecuteJavascript not work

I used Offscreen browser. Then, I created webView, subscribed to DocumentReady and loaded html. _originalWebView = WebCore.CreateWebView(this.ViewWidth, this.ViewHeight, WebViewType.Offscreen); _originalWebView.DocumentReady +=…
Che
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egl pbuffer offscreen rendering can only read back background

I want to achieve egl offscreen rendering with pbuffer surface. but all I can read back is the background color. things I draw can't be seen. for example, if I clear the screen with blue, the read back image via glReadPixel is just a blue-colored…
Bill Yan
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FBO + texture: strange results from offscreen generation of geometry data

I have 2+ pass rendering where the first stage generates the positions of the vertices of a rectangular mesh and stores them in a 2D float texture. The shaders look this way: vertex: #version 330 core out vec2 vfTexCoords; const float halfSide =…
Ivan Caravanio
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