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@YukiSnowy
YukiSnowy / main.cpp
Last active April 3, 2025 13:45
example SDL2 Vulkan application
// Windows
// g++ *.cpp -o vulkan -lSDL2main -lSDL2 -lvulkan-1
// Linux
// g++ *.cpp -o vulkan -lSDL2main -lSDL2 -lvulkan
// https://vulkan-tutorial.com/
#include <iostream>
using namespace std;
#include <SDL2/SDL.h>
@vurtun
vurtun / _GJK.md
Last active December 24, 2025 07:30
3D Gilbert–Johnson–Keerthi (GJK) distance algorithm

Gilbert–Johnson–Keerthi (GJK) 3D distance algorithm

The Gilbert–Johnson–Keerthi (GJK) distance algorithm is a method of determining the minimum distance between two convex sets. The algorithm's stability, speed which operates in near-constant time, and small storage footprint make it popular for realtime collision detection.

Unlike many other distance algorithms, it has no requirments on geometry data to be stored in any specific format, but instead relies solely on a support function to iteratively generate closer simplices to the correct answer using the Minkowski sum (CSO) of two convex shapes.

Evar (
concurrent = 5
semaphoreChan = make(chan struct{}, concurrent)
)
func doWork(item int) {
semaphoreChan <- struct{}{} // block while full
go func() {
defer func() {
<-semaphoreChan // read to release a slot
@ocornut
ocornut / imgui_node_graph_test.cpp
Last active November 12, 2025 09:27
Node graph editor basic demo for ImGui
// Creating a node graph editor for Dear ImGui
// Quick sample, not production code!
// This is quick demo I crafted in a few hours in 2015 showcasing how to use Dear ImGui to create custom stuff,
// which ended up feeding a thread full of better experiments.
// See https://github.com/ocornut/imgui/issues/306 for details
// Fast forward to 2023, see e.g. https://github.com/ocornut/imgui/wiki/Useful-Extensions#node-editors
// Changelog
// - v0.05 (2023-03): fixed for renamed api: AddBezierCurve()->AddBezierCubic().