Longor1996

import re
import sys
import fontforge

print(f"MSDF Multi-Font Merger & Generator! Python {sys.version}")

merged = None
#merged = fontforge.font()
#merged.fontname = "merged"
#merged.encoding = "UnicodeFull"

gingerBill

package objc_test

import NS "vendor:darwin/Foundation"
import MTL "vendor:darwin/Metal"
import CA "vendor:darwin/QuartzCore"
	
import SDL "vendor:sdl2"

import "core:fmt"
import "core:os"

slimsag

WIDL compiler incompatibilities with Windows SDK

I attempted to compile the IDL files distributed in https://github.com/microsoft/win32metadata/tree/master/generation/WinSDK/RecompiledIdlHeaders using the latest (7.0.1-rc.1) version of the Wine IDL compiler, called WIDL. Unlike Microsoft's MIDL compiler which ships with Visual Studio, WIDL is open source.

More importantly, WIDL contains patches to generated header files that make e.g. COM calling conventions compatible with mingw-w64 and clang when targetting GNU ABI.

• Bugs
  • Imports are incorrectly case sensitive
  • WIDL does not allow double slashes in string literals
• Segmentation faults

h3r2tic

A quick breakdown of lighting in the restir-meets-surfel branch of my renderer, where I revive some olde surfel experiments, and generously sprinkle ReSTIR on top.

General remarks

Please note that this is all based on work-in-progress experimental software, and represents a single snapshot in development history. Things will certainly change 😛

Due to how I'm capturing this, there's frame-to-frame variability, e.g. different rays being shot, TAA shimmering slightly. Some of the images come from a dedicated visualization pass, and are anti-aliased, and some show internal buffers which are not anti-aliased.

Final images

pdarragh

Approachable PL Papers for Undergrads

On September 28, 2021, I asked on Twitter:

PL Twitter:

you get to recommend one published PL paper for an undergrad to read with oversight by someone experienced. the paper should be interesting, approachable, and (mostly) self-contained.

what paper do you recommend?

bitonic

// See <https://gist.github.com/pervognsen/b58108d134824e61caedffcc01004e03> for
// Per Vognsen gist on value speculation.
//
// I compile this on linux with
//
//     $ clang --version
//     clang version 12.0.0
//     Target: x86_64-unknown-linux-gnu
//     $ clang -static -Wall -O3 value-speculation-linux.c -o value-speculation-linux
//

pervognsen

INLINE
u32 index(Ref r) {
	return r >> 4;
}

INLINE
u32 tag(Ref r) {
	return r & 15;
}

x0nu11byt3

ELF Format Cheatsheet

Introduction

Executable and Linkable Format (ELF), is the default binary format on Linux-based systems.

Compilation

pervognsen

// Length-segregated string tables for length < 16. You use a separate overflow table for length >= 16.
// By segregating like this you can pack the string data in the table itself tightly without any padding. The datapath
// is uniform and efficient for all lengths < 16 by using unaligned 16-byte SIMD loads/compares and masking off the length prefix.

// One of the benefits of packing string data tightly for each length table is that you can afford to reduce the load factor
// on shorter length tables without hurting space utilization too much. This can push hole-in-one rates into the 95% range without
// too much of a negative impact on cache utilization.

// Since get() takes a vector register as an argument with the key, you want to shape the upstream code so the string to be queried
// is naturally in a vector. For example, in an optimized identifier lexer you should already have a SIMD fast path for length < 16

raysan5

CUSTOM GAME ENGINES: A Small Study

A couple of weeks ago I played (and finished) A Plague Tale, a game by Asobo Studio. I was really captivated by the game, not only by the beautiful graphics but also by the story and the locations in the game. I decided to investigate a bit about the game tech and I was surprised to see it was developed with a custom engine by a relatively small studio. I know there are some companies using custom engines but it's very difficult to find a detailed market study with that kind of information curated and updated. So this article.

Nowadays lots of companies choose engines like Unreal or Unity for their games (or that's what lot of people think) because d