howiemnet

## Houdini-->Fusion animation exporter thingy.py
################################################################
#
#  h's hacky Houdini --> Fusion camera animation exporter
#
#  Last mod: 20/3/2020   / h@howiem.net
#
#
#
#
#  Notes:

## AE_to_Houdini.py
# Ultra quick'n'hacky AE camera animation importer for Houdini.
# Create a new shelf, create a new tool, paste this into the script box.
#
# In AE, select the Orientation and/or Position keyframes, and Ctrl/Cmd-C them to the clipboard
# Open a new text file (Notepad or Textedit) and paste the clipboard contents in. There's your keyframes.
# Save the text file somewhere and amend the filename line below to suit
# In Houdini, create a camera (it's up to you to set the same zoom / aperture as the AE one).
# ... and run this script (well, press the shelf button you stuck this on)


## DAWmidi.py
# h's super dodgy, super-hacky MIDI controller for Houdini code
#
# Designed to get a Behringer X-Touch One controller to control Houdini
# while feeding back current frame and status to the lights and readouts
# on the controller. Super cool.
#
# But this really, really, shouldn't be public. My Python-fu is a little raw.
# But it may give someone a useful starting point...


## highlighter.html
<!DOCTYPE html>
<html>
<body>
<div style="font-family: sans-serif; font-size: large; width: 100%; padding: 10px; margin:0 0 30px 0; border: 2px solid black;" id="titlebar"></div>
<div id="myDiv">
</div>

<script>

	// h quick util: takes a querystring URL - ?file=URL_to_JS_file and renders out as hilighted JS

## Particle resizer.vex.cpp
// NOTE: ignore the .cpp extension on the filename - this is VEX
//       but I couldn't find a gist-friendly way to syntax-hilight it
//       ¯\_(ツ)_/¯
//
// h's magic adaptive point resizer for optimal
// rendering of tiny points/particles/wires
//
// 1/2/2018 h@howiem.net
// CC-0 - use and abuse

## Hacky_Houdini_to_AfterEffects.py
# first hacky attempt at getting camera / object animations into AE from Houdini.
# Stick this on a tool button on a shelf. Note the hard-coding below (!)
# A file will be created in your home folder; open it, copy to the clipboard, then go to AE and paste onto the cam/null of your choice


import hou

h = hou.node("/obj/geo1")
filename = "testfile.txt"
startFrame = 0

## Houdini - copy camera animation data to clipboard.py
#  Houdini to After Effects camera animation exporter
#  This version: 7/11/2018, by Howard Matthews - h@howiem.net
#  Copyright: CC-0 - use and abuse. Please pass on the knowledge.

#  Note: there's no error-checking in this script, but it alters nothing within the Houdini scene, so it'll just
#        fail with an error if you try running it without a camera selected. No harm done.

import hou

theNodes = hou.selectedNodes()

## houdini_to_blender.py
# Houdini to Blender camera exporter thingy
# h@howiem.net / 22 Aug 2019
#
# v1.0: hacky but seemingly working
#
# Pop this into a toolbar button's script window in Houdini
# Select a camera (or a camera switcher) and press the button
#
# A newly generated python script is now on the clipboard.
#

## infinity_blur.js
//
// This expression, applied to the blur radius of a Lens blur effect, will calc the right amount of blur
// to apply to objects at infinity (eg star fields) depending on the focus dist / aperture of the current active camera
//
// For safety it maxes out at 100 px (!)
//
try {
	focLen = (thisComp.activeCamera.cameraOption.zoom * 102.05) / thisComp.width;
	blurDiam = (focLen * thisComp.activeCamera.cameraOption.aperture) / (thisComp.activeCamera.cameraOption.focusDistance - focLen);
	Math.min(100,Math.abs(blurDiam)/2)

## WriteMotionFile.py
# Motion export script

rad2deg = 180/3.14159265

import bpy
import math
from math import sqrt
sce = bpy.context.scene

saveFile = open("/Users/h/Documents/BlenderPlayback.csv","w")
	################################################################
	#
	# h's hacky Houdini --> Fusion camera animation exporter
	#
	# Last mod: 20/3/2020 / h@howiem.net
	#
	#
	#
	#
	# Notes:
	# Ultra quick'n'hacky AE camera animation importer for Houdini.
	# Create a new shelf, create a new tool, paste this into the script box.
	#
	# In AE, select the Orientation and/or Position keyframes, and Ctrl/Cmd-C them to the clipboard
	# Open a new text file (Notepad or Textedit) and paste the clipboard contents in. There's your keyframes.
	# Save the text file somewhere and amend the filename line below to suit
	# In Houdini, create a camera (it's up to you to set the same zoom / aperture as the AE one).
	# ... and run this script (well, press the shelf button you stuck this on)
	# h's super dodgy, super-hacky MIDI controller for Houdini code
	#
	# Designed to get a Behringer X-Touch One controller to control Houdini
	# while feeding back current frame and status to the lights and readouts
	# on the controller. Super cool.
	#
	# But this really, really, shouldn't be public. My Python-fu is a little raw.
	# But it may give someone a useful starting point...
	<!DOCTYPE html>
	<html>
	<body>
	<div style="font-family: sans-serif; font-size: large; width: 100%; padding: 10px; margin:0 0 30px 0; border: 2px solid black;" id="titlebar"></div>
	<div id="myDiv">
	</div>

	<script>

	// h quick util: takes a querystring URL - ?file=URL_to_JS_file and renders out as hilighted JS
	// NOTE: ignore the .cpp extension on the filename - this is VEX
	// but I couldn't find a gist-friendly way to syntax-hilight it
	// ¯\_(ツ)_/¯
	//
	// h's magic adaptive point resizer for optimal
	// rendering of tiny points/particles/wires
	//
	// 1/2/2018 h@howiem.net
	// CC-0 - use and abuse
	# first hacky attempt at getting camera / object animations into AE from Houdini.
	# Stick this on a tool button on a shelf. Note the hard-coding below (!)
	# A file will be created in your home folder; open it, copy to the clipboard, then go to AE and paste onto the cam/null of your choice


	import hou

	h = hou.node("/obj/geo1")
	filename = "testfile.txt"
	startFrame = 0
	# Houdini to After Effects camera animation exporter
	# This version: 7/11/2018, by Howard Matthews - h@howiem.net
	# Copyright: CC-0 - use and abuse. Please pass on the knowledge.

	# Note: there's no error-checking in this script, but it alters nothing within the Houdini scene, so it'll just
	# fail with an error if you try running it without a camera selected. No harm done.

	import hou

	theNodes = hou.selectedNodes()
	# Houdini to Blender camera exporter thingy
	# h@howiem.net / 22 Aug 2019
	#
	# v1.0: hacky but seemingly working
	#
	# Pop this into a toolbar button's script window in Houdini
	# Select a camera (or a camera switcher) and press the button
	#
	# A newly generated python script is now on the clipboard.
	#
	//
	// This expression, applied to the blur radius of a Lens blur effect, will calc the right amount of blur
	// to apply to objects at infinity (eg star fields) depending on the focus dist / aperture of the current active camera
	//
	// For safety it maxes out at 100 px (!)
	//
	try {
	focLen = (thisComp.activeCamera.cameraOption.zoom * 102.05) / thisComp.width;
	blurDiam = (focLen * thisComp.activeCamera.cameraOption.aperture) / (thisComp.activeCamera.cameraOption.focusDistance - focLen);
	Math.min(100,Math.abs(blurDiam)/2)
	# Motion export script

	rad2deg = 180/3.14159265

	import bpy
	import math
	from math import sqrt
	sce = bpy.context.scene

	saveFile = open("/Users/h/Documents/BlenderPlayback.csv","w")