thomashollier

# Pyenv cheat sheet

"pyenv" allows you to install and manage different versions of python on the same machine
"pyenv virtualenv" allows you to have and manage different package install environments


brew install pyenv pyenv-virtualenv

https://realpython.com/intro-to-pyenv

thomashollier

###############   USER PARAMETERS   ######################

$frequency = 1; # 1.0, 4
$irregularity = 0.075; # 0, 1
$cornerSharpness = 30; # 1,50
$groutWidth = 0.05; # 0,.5
$groutSharpness = 0.5; # 0,1
$numberOfRows = 20; # 10,30
$rowSizeVariation = 0; #0 , 1
$minNumberOfBricks = 10; #5,20

thomashollier

$noiseBigU = fbm([$u*8, $v*8,1],6,2,.75);
$u = $u + $noiseBigU*.005;
$noiseBigV = fbm([111+$u*8, 111+$v*8,0],6,2,.75);
$v = $v + $noiseBigV*.0025;

# number of horizontal bands
$vNum = 20;
# variation in width of horizontal bands
$vVar = 0.35;

thomashollier

#### Reference commands to do uv mapping with magick

# create a grad by making 'n' vertical bands of colors and blurring
echo "P2 4 1 255\n 137 195 125 255" | convert -   -depth 16 -scale 151x50\! -blur 0x6 -resize 4096x1436\! +matte   displace_map.tif

# use the grad to warp image
# note use of fx expression to make it resolution independent
inputImage=test.jpg
outputImage=testWarped.jpg
magick ${inputImage} -depth 16 displace_map.tif -virtual-pixel Gray -compose Displace -set option:compose:args '%[fx:w*.0855]x%[fx:0]' -composite -crop '%[fx:h*2]x%[fx:h]+%[fx:w*0.146]+%[fx:0]' ${inputImage}

thomashollier

# This takes an image with an arbitrary aspect ratio and figures out the thickness of the border
# necessary to fit that image into an arbitrarily sized page while preserving the image's aspect ratio
# AKA: I'd like to center a randomly sized image into a standard (or also randomly) sized frame
# AKA: I want to put this image into this frame but I want an even border and I don't want to crop my image

imageWidth = 1080
imageHeight = 1920
pageWidth = 24
pageHeight = 36

thomashollier

# osX and linux
brew install pyenv

# osX install python deps
brew install openssl readline sqlite3 xz zlib tcl-tk
# debian/ubuntu python deps
sudo apt update;
sudo apt install build-essential libssl-dev zlib1g-dev \
  libbz2-dev libreadline-dev libsqlite3-dev curl \
  libncursesw5-dev xz-utils tk-dev libxml2-dev libxmlsec1-dev libffi-dev liblzma-dev

thomashollier

PREFIX=$(basename $(pwd))

pto_gen -o project.pto *jpg

echo -----
echo cpfind
echo -----
echo ""

thomashollier

#!/Users/thomas/miniconda3/bin/python3


import os, sys, subprocess

srcDir = "pix"
images=os.listdir("./pix/")
images.sort()
images=[x for x in images if x.split(".")[-1:][0]=="jpg"]

thomashollier

# ffmpeg filter, force landscape (or keep as is if already landscape) and 
# rotate so top left and bottom right corner line up in the middle of the final frame
-vf 'transpose=2:passthrough=landscape,rotate=atan2(iw\,ih):ow=sqrt(iw*iw+ih*ih)'

thomashollier

from pxr import Usd, UsdGeom, Sdf, UsdShade
import os

##############
# Assuming a single mesh usd file
# Create a material and a binding to an Unreal material location so it gets automagically assined on load
# Remove the existing material assignment if one is found  in the file
#
##############