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Questions tagged [graphics]

Use this tag for questions involving visual presentations, whether they are generated using bitmap or vector techniques.

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Generate vertices and normals for a flat shaded cylinder

I would like to generate list of vertices and normals (with the correct indices) for rendering a cylinder barrel (I ommited the end caps for brevity). The normals should not be interpolated (flat ...
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4 votes
1 answer
46 views

Shorten a SVG file created with Inkscape

I often use Inkscape for generating SVG images. However, these images contain data which doesn't seem to affect the visual output, so I want to remove it. To do that, I wrote the following code: ...
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5 votes
1 answer
89 views

Python module to print in printer

I made a code that simplifies the job of sending anything to print with the Windows API. The module has a Document object which stores a reference to the actual device context within it. You can ...
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  • 151
1 vote
1 answer
67 views

Hough Circular Transform

I'm writing a very basic crater-detection code using Hough Circular Transforms. By far, the longest part of my code is actually doing the transform, which involves numerous nested loops/conditions. ...
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4 votes
1 answer
640 views

4x4 double precision matrix multiply using AVX intrinsics (inc. benchmarks)

Benchmark An optimised 4x4 double precision matrix multiply using intel AVX intrinsics. Two different variations. Gist For quick benchmark (with a compatible system) copy paste the command below. Runs ...
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  • 171
2 votes
0 answers
69 views

Structuring a project that generates triangles inside triangles

Basically I made this completely useless program that generates triangles inside triangles. Its not perfect yet but my question is about the structure. I am generally happy with it but I want to know ...
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1 vote
0 answers
35 views

81 variations of the rounded rectangle

If we apply outward curving, inward curving, and no curving at all, individually to each of the 4 corners of the rectangle, we get next 81 variations: The code implements next BASIC command: ...
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  • 4,058
0 votes
0 answers
67 views

convert ID3DXMatrixStack to DirectXMath

Is it right it convert ID3DXMatrixStack to DirectXMath like that: ...
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  • 23
0 votes
0 answers
42 views

How can I make my resource mapping faster?

I have a Direct3D 11 application and recently I've started to implement a new feature on it, the UI(User Interface). It seems to work well, but I'm having one problem with optimization when it comes ...
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0 votes
0 answers
106 views

Is there a way to optimize this graphics/bitmap drawing code in C#?

I am not doing anything fancy so not sure if there are any tricks to make it faster. It's a progress bar where I draw some numeric text on top. I only draw 1 pixel height image and then resize it. But ...
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6 votes
2 answers
343 views

Animal Storage TreeView - Tkinter

Bit of a pointless program (at the moment). It's intended more as practice for myself rather than anything else. General idea is that you add details of a particular cat or dog, and it'll update a ...
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6 votes
1 answer
278 views

ray-tracing in one weekend implementation

In the past I had followed the Ray Tracing in a Weekend books using C++ because that was what the book used. However, recently I started thinking about how hard it would be to implement using C and ...
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  • 669
2 votes
1 answer
672 views

Converting an equirectangular image to a cubemap

I've written a program that does three things: Take an equirectangular image and ... ... cut horizontally-overlapping image areas. ... fill the image from the bottom with black so it has a ratio of 2:...
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9 votes
2 answers
2k views

Can I draw a square with pixels more efficiently?

I'm drawing a square on a window using an implementation of Xlib. I put a colored pixel with my_pixel_put at a specific (...
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  • 183
6 votes
3 answers
697 views

ad hoc logging in c++ projects

I am currently going through this Vulkan tutorial. An extra excercise was writing a function which checks if the hardware you are running on supports the extensions other libraries require (GLFW in ...
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  • 191
2 votes
0 answers
57 views

Super Compact Bresenham's Line Algorithm v2

I recently posted here about an implementation of the Besenham's line algorithm that I wrote. I've been hard at work improving it and redoing it from the ground up. However I still can't seem to beat ...
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4 votes
1 answer
151 views

Super Compact Bresenham's Line Algorithm Variant

I wrote this variant of Bresenham's for fun. I am looking to see what I can optimize as it is still slower than Bresenham's. The idea here was that if I could isolate out the ...
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6 votes
1 answer
104 views

Basic raytracer written in Rust

I come from a fairly strong background of C and thought that this project would be a good way to get a handle on Rust. Right now, I have everything in one file because I wasn't sure the best way to ...
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5 votes
2 answers
832 views

Menu for X11 using Xlib in C

I am learning the xlib library and I made a xmenu utility in order to practice it. It receives as input a menu specification where each line is a menu entry. Each line can be indented with tabs to ...
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  • 854
-3 votes
1 answer
72 views

how to make 'for loop' short in C? [closed]

I made some code about solar system stimulation in C. It is working, but it looks too long. So, Are there some ways to shorten my code? Also this website told me your code is too full to upload this....
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  • 17
3 votes
0 answers
21 views

Simple graphics library from Sparkle

The piston2d-graphics crate provides a trait, Graphics, which allows easy access to some graphics primitives. This would be a ...
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  • 313
2 votes
2 answers
146 views

Code for getting the coordinates of points on the chart

I am a beginner android developer. I am working on one of my applications. For this application, I wrote an algorithm that is needed to obtain data that is used to build a diagram. I have a list of ...
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  • 407
1 vote
0 answers
68 views

color and canvas implementations in Rust for Ray Tracer Challenge

I'm learning Rust by working through Jamis Buck's The Ray Tracer Challenge. The book instructs the reader on what to build in what order, and provides all required test cases. Included here are my ...
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6 votes
2 answers
666 views

Simulating a Solar System Using Command-Line Graphics

After a relative hiatus of around two years, I've decided to start delving back into the programming world; to start, I've appropriated one of my older projects, CLIGL, and have made a solar system ...
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5 votes
1 answer
703 views

Draw a spark line with SwiftUI

I am using a set of data points (currently randomly generated), and drawing a line graph inside a box: ...
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  • 161
4 votes
1 answer
251 views

Single-player obstacle-avoidance space game

I was wondering what I could do to improve the gameplay of this game, as well as the graphics. I would like to use LWJGL, but the rendering library isn't important. I just need to find out ...
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  • 143
2 votes
1 answer
82 views

Speed up shapely buffer

I was asked to move the code here. I have different shapely.LineStrings like so: which I then buffer to create a polygon like ...
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4 votes
2 answers
71 views

Loading and drawing an image

I have some functions and structs for loading and drawing an image with OpenGL. The two main places I would like feedback are: I've tried to separate the OpenGL-specific code into the implementation ...
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  • 1,132
1 vote
1 answer
1k views

Moving objects in loop in graphics.py

Currently I am trying to teach myself more about functions with parameters and return values that connects with one to another. In this code I created a square object with graphics.py that moves to ...
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3 votes
2 answers
781 views

Snake game using graphics.py

I am a self taught python beginner for about 3 months and recently I finished my own snake game project. As seen from the code, it is not very efficient nor tidy to look at so I want to know if there ...
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5 votes
1 answer
161 views

Rust code of a tree fractal

I just picked up Rust recently and this is my first program (longer than 10 lines at least) so I'm looking for constructs that are more native and natural to Rust. I come from a c++/ python background....
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6 votes
0 answers
131 views

Julia set in Julia (and other fractals)

I've made the following to draw a series of zooming in images of a fractal. ...
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  • 3,512
6 votes
0 answers
43 views

Drawing a line in any direction with pixels

I am doing an image drawing and rendering library, and would like some feedback on this code, it simply draws a line in any direction. The equation for that is: m = (y2 - y1) / (x2 - x1) b = y1 - m ...
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  • 61
2 votes
0 answers
112 views

Improving rendering performance of 3D Voxel Game

Improving rendering performance of 3D Voxel Game Technical features added: Perlin Noise Generator 3D Explorable World (You can't break or place blocks) Free camera, you can fly and go through blocks ...
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  • 31
7 votes
0 answers
621 views

Unity3D shader for rendering 2D sprites with a pseudo-glitch effect

I'm making a puzzle game in Unity with sprite-based graphics. When the game is paused, I want to hide most game elements, because I don't want the player to be able to pause and leisurely think about ...
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  • 459
5 votes
2 answers
121 views

Class hierarchy for objects in a 3D engine

I am writing my own 3D engine. I initially made the code quick and dirty but after a while the code became pretty messy and it have a lot of repeating code so I am currently cleaning up some of the ...
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3 votes
1 answer
152 views

Plot ROC, PR, and PRI curves in C# using pre-calculated coordinates

I have written a small program in C# to plot ROC, PR (equal to AP) and ...
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  • 193
2 votes
0 answers
456 views

DirectX11 Error Handling

I'm new to C++, been a C programmer most of my life. I wanted to get into graphics and Direct3D is C++ so I figured it was about time. I've been learning about strings, vectors, references, smart ...
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  • 21
9 votes
2 answers
216 views

Maze generator for teaching Python 3

I am teaching programming (in this case - 1 on 1 tutoring of a teenager interested in programming) and this code will be a final stage of a progression toward program generating a maze. Any comments ...
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2 votes
1 answer
353 views

2-dimensional random walk simulator, draws the steps on a canvas

Here's what I came up with for a 2-dimensional random walk exercise. It takes a number of steps as input and iterates through them, while drawing every step as a line on the canvas. The direction is ...
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  • 341
1 vote
2 answers
344 views

Drawing graphics and text using macOS Core Graphics

I have a small python project, which draws graphics and text onto a graphics context using MacOS's Core Graphics APIs. The idea is to make it easy for the user to write a few short lines, in order to ...
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  • 113
4 votes
1 answer
59 views

Analyzing spoke overlaps during rotation: Round 2

Round 1: Analyzing spoke overlaps during rotation I previously posted this question, but I've changed a lot of the code since then. There was a mention of the previous being a bit mixed up, and things ...
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6 votes
1 answer
61 views

Analyzing spoke overlaps during rotation

For a personal project that I've recently started I have to analyze the rotation of two shapes with sets of spokes, where the spokes are evenly-spaced, and split into a given number. That is, if I ...
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1 vote
0 answers
1k views

Voxel Engine with Vulkan

Here is my voxel engine. I want some review for performance on the renderer. What can be improved? What must change? Also I'm not sure it is efficient to use vkWaitQueueIdle for syncing. The end goal ...
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13 votes
2 answers
670 views

Sierpiński's carpet fractal animation for teaching Python 3

I am teaching programming (in this case - 1 on 1 tutoring of a teenager interested in programming) and this code will be a final stage of a progression toward program generating a nice image of ...
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5 votes
2 answers
251 views

Portrait Painting Genetic Algorithm

Inspired by this article. I've been trying to learn more C# and OOP. Here is my take on a genetic algorithm as described in the article. Here are some of the results flower jelly lighthouse beach ...
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  • 63
4 votes
1 answer
222 views

Drawing consecutive rectangles with an algorithm

I have an assignment to draw rectangles that get larger and larger each time I draw them. Just like shown below. I've labeled them TL = Top Left, TR = Top Right, BL = Bottom Left, BR = Bottom Right. ...
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3 votes
0 answers
618 views

Implementing Cyrus Beck algorithm for convex polygons

I have found the coordinates of the centroid for finding the direction of the normal vectors of the edges of the convex polygons. This method seems to work in the cases I tested. Is this fool proof ? ...
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5 votes
0 answers
51 views

CMYK shadings implementation for PGF

PGF is a graphics framework for \$\TeX\$ and friends. It supports shadings (gradients), but only in RGB. There is often a need to output shadings in CMYK and I am having a go at implementing this. I'...
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1 vote
0 answers
55 views

Drawing sprites and adding new ones

I have some code that draws sprites and and allows new ones to be added. To do this, I use 2 lists: 1 for the sprites that need to be drawn, and one for the new sprites that need to be added to the ...
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