Bigfoot71

#include <raylib.h>
#include <raymath.h>

static void SetSoundPosition(Camera listener, Sound sound, Vector3 position, float maxDist)
{
    // Calculate direction vector and distance between listener and sound source
    Vector3 direction = Vector3Subtract(position, listener.position);
    float distance = Vector3Length(direction);
    
    // Apply logarithmic distance attenuation and clamp between 0-1

d7samurai

Minimal D3D11 sprite renderer NEO

Ultra-compact sprite rendering code with example frame animation logic. This release contains tech bits from the upcoming SuperNeo™ 2D game engine and includes anchor/pivot point, rotation, color filtering, alpha blending and built-in antialiased point sampling. As usual: complete, runnable single-function app. ~150 LOC. No modern C++, OOP or (other) obscuring cruft.

Sprites are rendered back-to-front (AKA "painter's algorithm") in the order they are submitted, as one draw call. The provided setup employs a single texture atlas containing all the sprite graphics.

The renderer is "im

postmalloc

// A handy bookmarklet to display comments from the top-rated Hacker News thread related to the current page
// Written with the help of GPT-4

javascript:(function() {
  const createCommentElement = (comment, depth) => {
    const commentWrapper = document.createElement('div');
    commentWrapper.style.paddingLeft = (depth * 20) + 'px';
    commentWrapper.style.marginBottom = '10px';
    commentWrapper.style.marginLeft = '10px';
    commentWrapper.style.color = '#333';

d7samurai

Minimal D3D11 sprite renderer

Minimal D3D11 sprite renderer: basic back-to-front sprite rendering reference code with example sprite sheet animation logic. As usual: Complete, runnable single-function app. No modern C++ / OOP / obscuring cruft.

Swap out the sprite sheet with a font atlas for a lightweight GUI / text renderer. Clip individual sprites and glyphs by offsetting screenPos and atlasPos to top left corner of visible area and adjusting size accordingly (all values in pixels):

sprite.screenPos.x += 17;
sprite.screenPos.y += 10;

munrocket

WGSL 2D SDF Primitives

Revision: 06.08.2023, https://compute.toys/view/398

Circle - exact

fn sdCircle(p: vec2f, r: f32) -> f32 {
  return length(p) - r;
}

munrocket

WGSL 3D SDF Primitives

Revision: 06.08.2023, https://compute.toys/view/407

Sphere - exact

fn sdSphere(p: vec3f, r: f32) -> f32 {
  return length(p) - r;
}

mmozeiko

// example how to set up OpenGL core context on Windows
// and use basic functionality of OpenGL 4.5 version

// important extension functionality used here:
// (4.3) KHR_debug:                     https://www.khronos.org/registry/OpenGL/extensions/KHR/KHR_debug.txt
// (4.5) ARB_direct_state_access:       https://www.khronos.org/registry/OpenGL/extensions/ARB/ARB_direct_state_access.txt
// (4.1) ARB_separate_shader_objects:   https://www.khronos.org/registry/OpenGL/extensions/ARB/ARB_separate_shader_objects.txt
// (4.2) ARB_shading_language_420pack:  https://www.khronos.org/registry/OpenGL/extensions/ARB/ARB_shading_language_420pack.txt
// (4.3) ARB_explicit_uniform_location: https://www.khronos.org/registry/OpenGL/extensions/ARB/ARB_explicit_uniform_location.txt

bmaupin

See also:

• Free database hosting
• https://free-for.dev/#/?id=iaas
• https://free-for.dev/#/?id=paas

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AWS EC2	IaaS	1 GB		⚠️ Only free for 1 year

vurtun

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.

bkaradzic

Orthodox C++

This article has been updated and is available here.