zeux

State of Roblox graphics API across all platforms, with percentage deltas since EOY 2017. Updated December 17 2018

Windows

API	Share
Direct3D 11+	80% (+3%)
Direct3D 10.1	10% (-1%)
Direct3D 10.0	8% (-1%)
Direct3D 9	2% (-1%)

vurtun

/* ===========================================================================
 *
 *                                  LIBRARY
 *
 * =========================================================================== */
/*  Proof of Concept GUI:
 *  - PoC UI implementation in ~2.5kLOC of C89 (ANSI C)
 *      => Core solutions has no external dependencies (removing standard library dependency is trival)
 *      => Does not use or require any special language constructs or macro constructs just pointers and enums
 *  - Combines both "retained" and "immediate mode" UI by providing control over update frequency

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/

ocornut

Memory Optimization (Christer Ericson, GDC 2003)
http://realtimecollisiondetection.net/pubs/GDC03_Ericson_Memory_Optimization.ppt

Cache coherency primer (Fabian Giesen)
https://fgiesen.wordpress.com/2014/07/07/cache-coherency/

Code Clinic 2015: How to Write Code the Compiler Can Actually Optimize (Mike Acton)
http://gdcvault.com/play/1021866/Code-Clinic-2015-How-to

fahickman

// This assumes the occluder AABB and camera position are in the same space.
// You can either then transform the planes into world space, or transform the
// box verts and camera pos into world space before building the planes, but
// after finding the silhouette.
int makeOccluderPlanes(Vec4 planes[9], Vec3 bmin, Vec3 bmax, Vec3 camPos)
{
   static const uint8_t s_silhouettes[43][6] = {
      { },                       //  0
      { 0, 4, 6, 2 },            //  1: -x
      { 1, 3, 7, 5 },            //  2: +x

aras-p

int	maxAASamplesConst;	// gles2 img/apple/ext extensions all use different constants (facepalm)
int	halfConst;		// gles2 and gles3 have different constants for half float type
int	texSRGBAConst;		// gles2 (without 'internal format' ext) and gles3 have different constants for SRGB RGBA texture type
int	texSRGBConst;		// gles2 (without 'internal format' ext) and gles3 have different constants for SRGB RGB texture type
int	etcFormatConst;		// gles2/gles3 have different standard etc formats

bool	isPvrGpu;
bool	isMaliGpu;
bool	isAdrenoGpu;
bool	isTegraGpu;

gafferongames

/* 
    Delta Compression by Glenn Fiedler. 
    This source code is placed in the public domain.
    http://gafferongames.com/2015/03/14/the-networked-physics-data-compression-challenge/
*/

#include <stdint.h>
#include <stdio.h>
#include <assert.h>
#include <string.h>