Questions tagged [pixel-graphics]
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38 questions
1 vote
1 answer
59 views
Sequence on Linux KMS/DRM at 60 Hz
I am implementing a program using the KMS/DRM Linux modules for rendering patterns on a 1920x1080 monitor using a Raspberry Pi. My goal is to implement a pattern on a 8x8 chess board where the squares ...
- 113
0 votes
1 answer
94 views
Clarification on PPI
I wanted to convert a chart rendered by canvas element to an image file so that the user can download it. But the official HTML docs say that: The created image data will have a resolution of 96dpi ...
- 111
1 vote
1 answer
434 views
undefined reference to `SDL_setRenderDrawColor'
I am getting C:\Users\rasmu\AppData\Local\Temp\ccwOn3mM.o:main.c:(.text+0x11f): undefined reference to `SDL_setRenderDrawColor' C:\Users\rasmu\AppData\Local\Temp\ccwOn3mM.o:main.c:(.text+0x155): ...
- 11
0 votes
2 answers
169 views
Purpose and workflow of wireframe models
I am more less familiarized with the major computer graphics concepts up to certain dregree of "low-levelness". So I know how models, vertices, polygons etc. and how these works. Also how is ...
- 103
1 vote
1 answer
176 views
wall clock using bresenhams circle drawing algo
I am new to CG and I need to draw a wall clock using bresenhams circle algo . I have drawn a circle using this algo but how do I add minute and hour needle in it basically how do i add lines inside a ...
- 11
1 vote
0 answers
53 views
Why refresh rate is needed in a passive-matrix LCD?
In a passive-matrix LCD we have horizontal and vertical conductors. The intersection points are pixels which are cells of liquid crystal molecules . For drawing a frame, we provide the necessary ...
- 111
0 votes
0 answers
55 views
What APIs are used to output video and audio from a custom codec?
I am looking for tools to generate video and audio output for my own codecs, in my search I found SDL, EGL, FFmpeg and OpenAL, but it is not clear to me if these APIs serve my purpose which is simply ...
- 1
0 votes
0 answers
577 views
Sub pixel rendered white text on black background changes color when resized to a very small size
download: https://upload.wikimedia.org/wikipedia/commons/5/57/Subpixel-rendering-RGB.png The above picture is an example for sub pixel rendering. I tried resizing the image to very small size in ...
