majal

#!/bin/bash

# Multicore minterpolate in ffmpeg
# Just slice & process & concat
# NB: The concat points between slices may be weird

# Default arguments
ff=/usr/bin/ffmpeg
fps=60
dur=00:00:10

nico-lab

Encoder av1_nvenc [NVIDIA NVENC av1 encoder]:
    General capabilities: dr1 delay hardware 
    Threading capabilities: none
    Supported hardware devices: cuda cuda d3d11va d3d11va 
    Supported pixel formats: yuv420p nv12 p010le yuv444p p016le yuv444p16le bgr0 bgra rgb0 rgba x2rgb10le x2bgr10le gbrp gbrp16le cuda d3d11
av1_nvenc AVOptions:
  -preset            <int>        E..V....... Set the encoding preset (from 0 to 18) (default p4)
     default         0            E..V....... 
     slow            1            E..V....... hq 2 passes
     medium          2            E..V....... hq 1 pass

martymcmodding

/*=============================================================================

	ReShade 5 effect file
    github.com/martymcmodding 

	Author: Pascal Gilcher / Marty McFly

	ReShade Motion Estimation Shader for dense 2D UV-space motion vectors
	Based on ReShade Motion Estimation by Jakob Wapenhensch
	(https://github.com/JakobPCoder/ReshadeMotionEstimation)

FeodorVolguine

//Normal distribution function (Trowbridge-Reitz GGX)
float DistributionGGX(float NdotH, float alpha2)
{
	float f = (NdotH * alpha2 - NdotH) * NdotH + 1.0f;
	return alpha2 / (f * f * PI);
}

//Height-correlated Smith-GGX visibility function
float VisibilitySmithGGX(float NdotL, float NdotV, float alpha2)
{

totallyRonja

static const float3x3 lrgb2cone = {
    0.412165612, 0.211859107, 0.0883097947,
    0.536275208, 0.6807189584, 0.2818474174,
    0.0514575653, 0.107406579, 0.6302613616,
};

static const float3x3 cone2lab = {
    +0.2104542553, +1.9779984951, +0.0259040371,
    +0.7936177850, -2.4285922050, +0.7827717662,
    +0.0040720468, +0.4505937099, -0.8086757660,

ctreffs

PBR Resources

• Rendering Physically-Based ModelIO Materials
• Physically Based Rendering in Filament
• Simplified PBR Shading Model for Unreal
• OpenGL - PBR (video) & OpenGL - PBR - LearnOpenGL & Source Code + Demos
• Moving Frostbite to PBR Slides SLIDES PAPER
• https://lousodrome.net/blog/light/2020/01/04/physically-based-rendering-references-at-the-end-of-2019/
• https://graphicrants.blogspot.com/2013/08/specular-brdf-reference.html

pixelmager

gathering of links 2019

• http://lousodrome.net/blog/light/tag/furnace-test/

Real Shading in Unreal Engine

• https://cdn2.unrealengine.com/Resources/files/2013SiggraphPresentationsNotes-26915738.pdf

"A Multiple-Scattering Microfacet Model for Real-Time Image-based Lighting"

• http://jcgt.org/published/0008/01/03/

fritschy

# For all snippets, check documentation for details and settings.

# encode video from a V4L2 device, using specified settings.
# x265 worked somewhat better here and produced less skips (although uses 10x CPU compared to x264)
ffmpeg -f video4linux2 -framerate 30 -input_format mjpeg -video_size 1920x1080 -i /dev/video6 -c:v libx265 -preset ultrafast -c:a none -crf 20 out.mp4

# Convert a raw YUYV422 frame from my USB "microscope" to PNG:
# other valid pixel formats are e.g. rgb24 or yuv420p
ffmpeg -f rawvideo -video_size 2592x1944 -pixel_format yuyv422 -i input_yuyv422_2592x1944.dat -f image2 output.png

mebiusbox

analytic

# variables go here...
# only floats supported right now.
# [type] [name] [min val] [max val] [default val]

::begin parameters
float roughness 0 1 1
float f0 0 1 0.04
::end parameters