Questions tagged [pixels]
The pixels tag has no usage guidance.
24
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Game texture looks pixelated at big distance
I'm currently making a game with Python's Ursina module, and everything runs well, except:
the grass texture (size: 8192x8192px) looks pixelated at big distance (everything inside the red marker). How ...
- 11
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28
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What happens when we select lower resolutions on a high-resolution monitor?
I have a monitor with a resolution of 1360x768 (16:9), When I set the resolution to 1280x768 (5:3), 1024x768 (4:3), 800x600 (4:3), even 1920x1080 (16:9) it completely covers the screen and the monitor ...
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Algorithm for transforming PNG anti-aliasing to smooth paths
I read the pixels of PNG files via libpng and creates an array of alpha channels (showing visible pixels for a monochromatic image).
int pixels[height][width];
<...
- 131
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316
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How to use maximum resolution (pixel density) with OpenGL in MS Windows
CodeBlocks offers an example program in C, that uses OpenGL. It draws a single multicoloured rotating triangle. I have been building on this example. I am a novice in C and in OpenGL. I believe that I ...
- 163
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3
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how to put a pixel somewhere in a window(directx)
I'm interested in direct3d game programming and I'm just a beginner.
I'm familiar with the Win32 API and i was wondering...
how to put a certain pixel somewhere in the window
is there like a function ...
0
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2
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63
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What is the name of this moving color pixels effect, for animating a painting?
https://superrare.co/artwork-v2/spring-22267
The artwork in the link seems to be based on a painting of a woman, but effects have been added that assign a pixel to each block of the painting that ...
- 115
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2
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Why do some videos look smoother and others don't on the same monitor
I have a Dell monitor with 60 Hz refresh rate and therefore games playing on it are not very smooth as compared to 120 hz.
But when I open videos on YouTube of the same game on the same monitor, some ...
- 123
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Can ambient light reflection of a surface be larger than diffuse reflection?
According to Phong's reflection model, there are different reflection constants (k) and different intensities of the light source (i) for ambient, diffuse, and specular terms:
$I_p=k_ai_a+\sum_{m \in ...
0
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1
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194
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Paint pixels on the image around the cursor for painting application
I'm trying to create a simple painting application. And I was wondering about an efficient way to draw pixels on the screen.
I have a pixel struct:
...
- 516
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62
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Infinite 2D Coordinate Space
I am working with a 1 dimensional array of an RGBA struct composed of unsigned 8-bit integers. I have implemented a very basic line algorithm, and can draw lines from one point to another accurately, ...
1
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Which is more important : Texel or Pixel rate? [closed]
I would like to know which is the most important ? More particularly in games or for the display of a desk (ex KDE Plasma, Windows 10 ...) ?
- 111
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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 ...
6
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2
answers
2k
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Difference in pixels between different monitors' sizes
If I have an image of x/y resolution and display it on a monitor, does this mean that between a 15-inch monitor and a 42-inch, the same amount of pixels (x/y) will be displayed, only that each pixel ...
- 161
3
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Do we ever consider the size of the pixel to calculate the color in Ray Tracing?
From what I'm reading, it looks like a ray tracer views a pixel as one color and computes that color using the ray starting in the center of that pixel. Yet a pixel has a width and a height.
Do we ...
- 211
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What is a scaling factor of the screen?
I'm reading DXGI flip model article and some parts are not clear:
DirectFlip with panel fitters: Your window client region covers the screen, and your swapchain buffers are within some hardware-...
- 711
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human visual: relation of Distance and DPI
I was told that human's visual sharpness is 60 pixels per degree. As such, pixel per inch is approximately given by:
PPI = 1/ (Distance * tg((1/60*pi/180) )
Is ...
- 229
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4
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How is Anti Aliasing Implemented in Ray Tracing?
After reading a few articles online I can confidently say I am clueless on how Anti-Aliasing works when using Ray Tracing.
All I understand is that A Single Pixel/Ray is split into 4 sub-pixels and 4 ...
- 2,511
4
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1
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639
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Pixel packed texture source
I am grabbing video from a web cam using Microsoft Media Foundation. The image data is in YUY2 format. The pixels are packed in a 4:2:2 ratio. The color format is YCbCr. The color data gets repeated ...
- 165
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2
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Estimating real world object distance from photo
I'm not really sure if this is possible but it should be.
I currently have a photo of a sphere, whose radius I've measures physically. Knowing the apparent size of the sphere from the photo and all ...
- 243
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2
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158
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Is there a image-format that support an array per pixel?
For a project dealing with deep semantic labeling of images I need a format that supports arrays of arbitrary length for each pixel of the image.
The array is an array of integers.
Which image ...
- 61
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3
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Why do we have graphics frameworks like OpenGL and DirectX, when games could just draw pixels directly?
Games and other graphically intensive applications use frameworks like OpenGL and DirectX. Also they require features like pixel shader and DX12.
But why would we need all these frameworks and GPU ...
- 289
3
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1
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641
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Does this type of memory-mapping for a display exist?
Most information about memory mapped displays on the net are about those in which there is essentially a location in main memory for each pixel on the display. A hypothetical 1024 x 512 display would ...
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Could a hexagonal pixel array store an image more efficiently?
Most computer monitors and televisions have a rectangular array of pixels arranged on a square (or nearly square) lattice. Would a hexagonal lattice give better image quality for the same number of ...
10
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3
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What is the optimal radius of gaussian distribution for determining pixel colour?
Using a gaussian distribution of points on an image plane to calculate a pixel value, what radius/standard deviation will give the most information in the final image? Too large a radius gives a ...