rygorous

// float->half variants.
// by Fabian "ryg" Giesen.
//
// I hereby place this code in the public domain, as per the terms of the
// CC0 license:
//
//   https://creativecommons.org/publicdomain/zero/1.0/
//
// float_to_half_full: This is basically the ISPC stdlib code, except
// I preserve the sign of NaNs (any good reason not to?)

hellerbarde

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs

Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs

bzgeb

using UnityEngine;
using System.Collections;

using UnityEditor;

[CustomEditor (typeof(TriggerContainer))]
public class TriggerContainerEditor : Editor
{

    private SerializedObject obj;

nickdarnell

cbuffer CB
{
    matrix View;
    matrix Projection;
    matrix ViewProjection;
 
    float4 FrustumPlanes[6];    // view-frustum planes in world space (normals face out)
 
    float2 ViewportSize;        // Viewport Width and Height in pixels
 

pyalot

#define sectorize(value) step(0.0, (value))*2.0-1.0
#define sum(value) dot(clamp((value), 1.0, 1.0), (value))
#define PI 3.141592653589793

vec2 normalToUvRectOct(vec3 normal){
    normal /= sum(abs(normal));
    if(normal.y > 0.0){
        return normal.xz*0.5+0.5;
    }
    else{

mfuerstenau

  ZigZag-Encoding
  ---------------
  
  Maps negative values to positive values while going back and
  forth (0 = 0, -1 = 1, 1 = 2, -2 = 3, 2 = 4, -3 = 5, 3 = 6 ...)

  (i >> bitlength-1) ^ (i << 1)

  with "i" being the number to be encoded, "^" being
  XOR-operation and ">>" would be arithemtic shifting-operation

abstractalgo

Gamma, gamut, tone mapping, color, sRGB

sRGB learning curve
https://gamedevdaily.io/the-srgb-learning-curve-773b7f68cf7a#.y9sitvhmm

Color Math
http://www.essentialmath.com/GDC2015/VanVerth_Jim_DoingMathwRGB.pdf

The Importance of Terminology and sRGB Uncertainty
http://colour-science.org/posts/the-importance-of-terminology-and-srgb-uncertainty/

bkaradzic

Orthodox C++

This article has been updated and is available here.

unitycoder

Shader "Name" {

    Properties {

        name ("display name", Range (min, max)) = number
        name ("display name", Float) = number
        name ("display name", Int) = number
        name ("display name", Color) = (number,number,number,number)
        name ("display name", Vector) = (number,number,number,number)

pixelmager

Use cases

• Bluenoise in the game INSIDE (dithering, raymarching, reflections)
• Dithering, Ray marching, shadows etc
• A Survery of Blue Noise and Its Applications

Textures/Matrices for direct use (data!)

• Moments In Graphics (void-and-cluster)
  • 2D
  • 3D and 4D
• Bart Wronski Implementation of Solid Angle algorithm