Questions tagged [compositing]
Compositing is the combining of visual elements from separate sources into single images, often to create the illusion that all those elements are parts of the same scene.
9 questions
0
votes
0
answers
14
views
How can I render to a specific display with the lowest possible latency using DirectX 12 and Windows 11?
I'm interested in doing some ultra-low-latency rendering for a custom XR device in Windows 11 with DirectX 12.
The device's display appears to Windows as an ordinary monitor, so the standard, naïve ...
1
vote
1
answer
39
views
How is HTML Alpha-Blending Different than GIMP?
I have some graphic drawings of the floors of a hours that I want to display on a web page. Drawn in GIMP, there are several layers all with "normal" mode:
From bottom to top, the layers ...
- 121
1
vote
1
answer
238
views
ThreeJS OutlinePass error on Vertex shader not compiled
Trying to replicate ThreeJS outline postprocessing example, but I'm facing an error on some uncompiled Vertex shader.
I actually just copy/pasted source code with some small adjustment (removed the on-...
- 121
0
votes
0
answers
115
views
coverage vs transparency
2D application users seem to be using transparency as a proxy for coverage more often than not. However they are not the same, although nearly everybody makes the assumption that they are.
Given that ...
- 8,457
2
votes
1
answer
255
views
Can the framebuffer in OpenGL jargon or its color buffer end up being the one and the same memory location as the one scanned by a display controller?
My understanding is:
the 'framebuffer' in OpenGL is a collection of buffers: many (due to swapping or stereo rendering) color buffers, (only one?) z-buffer and (only one?) stencil buffer;
each OpenGL ...
- 21
1
vote
1
answer
75
views
Given a background image B and a composie image of A OVER B, can we somehow recover image A?
I often find myself in the situation where I have some old image where I composed a translucent overlay on top of a background, but then lost (or more likely discarded) the overlay. I still have pre-...
- 113
6
votes
1
answer
4k
views
What is the difference in overlay and framebuffer?
I have been trying to understand display and graphics. I feel that it's hard to make a logical image of the terms. I understand this:
Frame buffer is a dedicated memory that has the image/video/...
- 163
1
vote
1
answer
47
views
Given a composited image, is it possible to find the color and opacity of an overlaid shape?
I have an image that I'm trying to recreate programatically using Pyx in Python. It seems that there's an overlaid circle covering the color wheel. I'm trying to see if there's a way to, given the ...
- 111
5
votes
2
answers
1k
views
How to get clean plate from moving footage?
I'm not sure if this question is on-topic or not, based on the tour. Feel free to point me elsewhere.
The short version of the question is: what's the typical technique for generating the clean-plate ...
- 584