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EmmaEwert / cpu.rs
Created August 8, 2021 08:36
Rust code for the CPU of a Game Boy
use std::mem::MaybeUninit;
use crate::log;
use crate::emulator::*;
pub struct CPU {
pub emulator: *mut Emulator,
b: u8,
c: u8,
d: u8,
e: u8,
@EmmaEwert
EmmaEwert / Blit.cs
Created March 17, 2021 12:28
Distortion Blit in Universal Render Pipeline
using UnityEngine;
using UnityEngine.Rendering;
using UnityEngine.Rendering.Universal;
public class Blit : ScriptableRendererFeature {
public Settings settings = new Settings();
private Pass pass;
public override void Create() =>
@EmmaEwert
EmmaEwert / StarCat Signal.md
Created February 19, 2020 18:15

StarCat Signal

StarCat Signal seeks to emulate a universe as we expect it to be 7.4 billion years from now, enabling you and me to discover its secrets.

This document describes the technical approaches in StarCat Signal

Apple Pie

A procedure for generating the vast variability in the structure of space -- which gives rise to an entire universe -- is elusive.

Application of such a procedure in a technically feasible way is doubly elusive. Computers, while unbelievably efficient, are not able to simulate even the number of galaxies (~1 trillion) in our universe, much less the hundreds of billions of individual stars and planets in each of those galaxies.

@EmmaEwert
EmmaEwert / DigTaskStartSystem.cs
Created December 28, 2019 03:54
namespace Project {
using Unity.Burst;
using Unity.Collections;
using Unity.Entities;
using Unity.Jobs;
using Unity.Mathematics;
using static Unity.Mathematics.math;
[UpdateInGroup(typeof(SimulationSystemGroup))]
public class DigTaskStartSystem : JobComponentSystem {
@EmmaEwert
EmmaEwert / Reflection.shader
Last active April 11, 2019 20:58
Reflection Camera -> Render Texture -> Material with Reflection shader
Shader "Unlit/Custom/Reflection" {
Properties {
_MainTex ("Texture", 2D) = "white" {}
_Tint ("Tint", Color) = (1,1,1,1)
_Intensity ("Intensity", Range(0, 1)) = 0.5
_Speed ("Speed", Range(0, 1)) = 0.5
_Scale ("Scale", Range(0, 1)) = 0.5
_Contrast ("Contrast", Range(0, 1)) = 0.5
}
SubShader {
@EmmaEwert
EmmaEwert / Pokémon Lavender.md
Created October 8, 2018 21:28

Pokémon Mercury (codename) for Gameboy/Color

Possible name duos, from best to worst:

  • Cyan & Magenta (CMYK, but Yellow is already taken)
  • Rose & Lavender (flowers, why not)
  • Amethyst & Lapis (my favourite gemstones)
  • Dark & Light (unused concepts)
  • Mercury & Lead (metals like Gold and Silver)
@EmmaEwert
EmmaEwert / Nanode tweak.md
Created September 15, 2018 18:33

Enable socket recycle and reuse, connection settings:

# as root
echo "net.ipv4.tcp_tw_recycle = 1" >> /etc/sysctl.conf
echo "net.ipv4.tcp_tw_reuse = 1" >> /etc/sysctl.conf
echo "net.core.somaxconn = 1024" >> /etc/sysctl.conf

Enable zswap, tweak swappiness:




  


  




    


          
    

      

        
        

          

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                EmmaEwert
                / FastLog2.cs
            
            

              Created
              August 23, 2018 15:09
            

              
                Very fast C# implementation of `Log2`, returns nearest integer rounding up.
              
          

        

      

        

  

    
    


        



  


  

        

          
          int FastLog2(float x) => (x.GetHashCode() >> 23) - 127;
        

  





    


  




    


          
    

      

        
        

          

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                EmmaEwert
                / FirstPersonInputModule.cs
            
            

              Created
              August 17, 2018 13:19
            

              
                Replacement for Unity's StandaloneInputModule, world-space UI now reacts to first person locked cursor, screen center being the pointer position.
              
          

        

      

        

  

    
    


        



  


  

        

          
          using UnityEngine;
        

        

          
          using UnityEngine.EventSystems;
        

        

          
          	
        

        

          
          public class FirstPersonInputModule : StandaloneInputModule {
        

        

          
          	protected override MouseState GetMousePointerEventData(int id) {
        

        

          
          		var lockState = Cursor.lockState;
        

        

          
          		Cursor.lockState = CursorLockMode.None;
        

        

          
          		var mouseState = base.GetMousePointerEventData(id);
        

        

          
          		Cursor.lockState = lockState;
        

        

          
          		return mouseState;
        

  





    


  




    


          
    

      

        
        

          

              @EmmaEwert
          

          

            
                EmmaEwert
                / BayerMatrix64.shader
            
            

              Created
              August 9, 2018 00:06
            

              
                Precomputed 64×64 Bayer Matrix for realtime dithering
              
          

        

      

        

  

    
    


        



  


  

        

          
          static const int Indices[4096] = {
        

        

          
          	0, 3584, 896, 3360, 224, 3808, 840, 3528, 56, 3640, 952, 3347, 211, 3795, 883, 3571, 15, 3599, 911, 3375, 239, 3823, 836, 3524, 52, 3636, 948, 3356, 220, 3804, 892, 3580, 2, 3586, 898, 3362, 226, 3810, 842, 3530, 58, 3642, 954, 3345, 209, 3793, 881, 3569, 13, 3597, 909, 3373, 237, 3821, 838, 3526, 54, 3638, 950, 3358, 222, 3806, 894, 3582, 
        

        

          
          	2987, 1792, 2240, 1120, 2912, 2016, 2072, 1176, 2968, 1848, 2296, 1107, 2899, 2003, 2087, 1191, 2983, 1807, 2255, 1135, 2927, 2031, 2068, 1172, 2964, 1844, 2292, 1116, 2908, 2012, 2089, 1193, 2985, 1794, 2242, 1122, 2914, 2018, 2074, 1178, 2970, 1850, 2298, 1105, 2897, 2001, 2085, 1189, 2981, 1805, 2253, 1133, 2925, 2029, 2070, 1174, 2966, 1846, 2294, 1118, 2910, 2014, 2091, 1195, 
        

        

          
          	747, 3136, 448, 4032, 560, 3248, 280, 3864, 728, 3192, 504, 4088, 519, 3207, 295, 3879, 743, 3151, 463, 4047, 575, 3263, 276, 3860, 724, 3188, 500, 4084, 521, 3209, 297, 3881, 745, 3138, 450, 4034, 562, 3250, 282, 3866, 730, 3194, 506, 4090, 517, 3205, 293,