Blenderで動画作った際の副産物置き場

.swlg_scripts.md

Blenderで動画作った際の副産物置き場。

• EC2向けのネットワークレンダ用サービススクリプト
• Blenderマクロ（Python）
• OpenEXR連番から動画作成

AddBpmBasedMarkers.py

# AddBpmBasedMarkers.py

# resolution=1:
#   b1       b2       b3       b4
# resolution=4:
#   b1 - - - b2 - - - b3 - - - b4 - - -

import numpy as np
import bpy

fps = bpy.context.scene.render.fps
bpm = 140 # required 1/5
bps = bpm / 60
fpb = fps / bps

resolution = 2 # required 2/5
frame_begin = 6 # required 3/5
frame_end = 800 # required 4/5
frame_step = fpb / resolution

# set initial offset
#frame_begin = frame_begin
frame_begin = frame_begin + (fpb / 2)  # required 5/5

beat_count = 1
default_areatype = bpy.context.area.type
bpy.context.area.type = 'TIMELINE'

for f in np.arange(frame_begin, frame_end, frame_step):
    
    bar, beat = divmod(beat_count - 1, resolution)
    bar += 1
    beat += 1
    
    if beat == 1:
        marker_name = "b{}".format(bar)
    else:
        marker_name = "-"
    
    bpy.context.scene.frame_set(round(f, 4))
    bpy.ops.marker.add()
    bpy.ops.marker.rename(name=marker_name)
    
    beat_count += 1

bpy.context.area.type = default_areatype

CopyActiveCameraLocation1_Dynamic.py

# CopyActiveCameraLocation1_Dynamic.py

import bpy

def copy_active_camera_location(scene):
    
    target_name="EyeTarget" 
    
    if target_name in bpy.data.objects:
        bpy.data.objects[target_name].location = scene.camera.matrix_world.translation
        #bpy.data.objects[target_name].keyframe_insert(data_path='location') # Dirty Bake

bpy.app.handlers.frame_change_post.append(copy_active_camera_location)

CopyActiveCameraLocation2_Static.py

# CopyActiveCameraLocation2_Static.py

import bpy

def frame_range(s, e):
    return range(s, e + 1)

scene = bpy.context.scene
target_name="EyeTarget" 

start = scene.frame_start
end = scene.frame_end

target_range = frame_range(start, end)
ignore_ranges = (
    frame_range(2988, 3193),
    frame_range(5671, 6040)
)

if target_name in bpy.data.objects:
    
    target = bpy.data.objects[target_name]
    
    for i in target_range:
        
        ignore_frame = False

        for ignore_range in ignore_ranges:
            if i in ignore_range:
                ignore_frame = True
                break
        
        if not ignore_frame:
            scene.frame_set(i)
            target.location = scene.camera.matrix_world.translation
            target.keyframe_insert(data_path='location') # Bake

make.bat

set BIN_DJV_CONVERT="C:\Program Files\djv-1.0.5-Windows-64\bin\djv_convert"
set BIN_PNG2YUV="C:\work\mjpegtools-2.1.0-mingw-bin\bin\png2yuv"
set BIN_FFMPEG="C:\work\ffmpeg-20150115-git-cd960c8-win64-static\bin\ffmpeg"

set RENDER_RESULT_DIR=F:\blender\render_result
set PROJECT_NAME=SweetLogic_Finish
set OUTPUT_DIR=%RENDER_RESULT_DIR%\%PROJECT_NAME%

mkdir %OUTPUT_DIR%

set FPS=30
set FRAME_START=1
set FRAME_COUNT=6500
set FRAME_NAMING=%%06d.png
set AUDIO_INPUT=c:\work\SweetLogic_add30fps5framesilence.wav

cd /d %OUTPUT_DIR%

: OpenEXR Seq -> PNG Seq
: http://djv.sourceforge.net/djv_convert.html
:%BIN_DJV_CONVERT% 000001-006500.exr 000001.png -layer "RenderLayer.Combined.R,G,B,A"
%BIN_DJV_CONVERT% 000001-006500.exr 000001.png -layer "Composite.Combined.R,G,B,A"

: PNG Seq -> YUV and YUV -> Webm Lossless
:%BIN_PNG2YUV% -I p -f %FPS% -b 1 -n %FRAME_COUNT% -j "%OUTPUT_DIR%\%FRAME_NAMING%" > "%OUTPUT_DIR%\out.yuv"
:%BIN_FFMPEG% -i "%OUTPUT_DIR%\out.yuv" -i "%AUDIO_INPUT%" -map 0:0 -map 1:0 -c:v libvpx-vp9 -lossless 1 -qmax 0 -qmin 0 -c:a libvorbis -q:a 4 %OUTPUT_DIR%\out.webm

: PNG Seq -> Webm Lossless
:%BIN_FFMPEG% -f image2 -start_number %FRAME_START% -i -r %FPS% "%OUTPUT_DIR%\%FRAME_NAMING%" -i "%AUDIO_INPUT%" -map 0:0 -map 1:0 -c:v libvpx-vp9 -lossless 1 -qmax 0 -qmin 0 -c:a libvorbis -q:a 4 %OUTPUT_DIR%\out.webm

: PNG Seq -> H264 Lossless
%BIN_FFMPEG% -f image2 -start_number %FRAME_START% -r %FPS% -i "%OUTPUT_DIR%\%FRAME_NAMING%" -i "%AUDIO_INPUT%" -map 0:0 -map 1:0 -c:v libx264 -qp:v 0 -c:a aac -b:a 240k -strict -2 %OUTPUT_DIR%\out.mp4

: PNG Seq -> H264 CRF Slow
:%BIN_FFMPEG% -f image2 -start_number %FRAME_START% -r %FPS% -i "%OUTPUT_DIR%\%FRAME_NAMING%" -i "%AUDIO_INPUT%" -map 0:0 -map 1:0 -c:v libx264 -preset:v slow -crf:v 22 -c:a aac -b:a 240k -strict -2 %OUTPUT_DIR%\out_lossy.mp4

cd /d %RENDER_RESULT_DIR%

echo done

netrender-master.sh

RPATH=/mnt/my-data
BIN_BLENDER=${RPATH}/blender-2.73a-linux-glibc211-x86_64/blender

cd ${RPATH}
${BIN_BLENDER} -b simple_master.blend --addons netrender -a -noaudio -nojoystick --enable-autoexec

netrender-slave-mild.bat

set TITLE=blender-slave-mild
set BIN=C:\Program Files\Blender Foundation\Blender\blender.exe
set OPTIONS=-b simple_slave.blend --addons netrender -a -noaudio -nojoystick --enable-autoexec

: Set CPU affinity mask
set AFFINITY_MASK_BINARY=00001111
for /f %%i in ('python -c "print(0b%AFFINITY_MASK_BINARY%)"') do set AFFINITY_MASK_DECIMAL=%%i

start /affinity %AFFINITY_MASK_DECIMAL% "%TITLE%" "%BIN%" %OPTIONS%

netrender-slave.sh

RPATH=/mnt/my-data
BIN_BLENDER=${RPATH}/blender-2.73a-linux-glibc211-x86_64/blender

cd ${RPATH}
${BIN_BLENDER} -b simple_slave_eiptarget.blend --addons netrender -a -noaudio -nojoystick --enable-autoexec

sysvinitservice_netrender-master

#!/bin/sh
### BEGIN INIT INFO
# Provides:          netrender-master
# Required-Start:    $local_fs $network $named $time $syslog
# Required-Stop:     $local_fs $network $named $time $syslog
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Description:       Blender\ NetRender\ Slave
### END INIT INFO

SCRIPT=/mnt/my-data/netrender-master.sh
RUNAS=ec2-user

PIDFILE=/var/run/netrender-master.pid
LOGFILE=/var/log/netrender-master.log

start() {
  if [ -f /var/run/$PIDNAME ] && kill -0 $(cat /var/run/$PIDNAME); then
    echo 'Service already running' >&2
    return 1
  fi
  echo 'Starting service…' >&2
  local CMD="$SCRIPT &> \"$LOGFILE\" & echo \$!"
  su -c "$CMD" $RUNAS > "$PIDFILE"
  echo 'Service started' >&2
}

stop() {
  if [ ! -f "$PIDFILE" ] || ! kill -0 $(cat "$PIDFILE"); then
    echo 'Service not running' >&2
    return 1
  fi
  echo 'Stopping service…' >&2
  kill -15 $(cat "$PIDFILE") && rm -f "$PIDFILE"
  echo 'Service stopped' >&2
}

uninstall() {
  echo -n "Are you really sure you want to uninstall this service? That cannot be undone. [yes|No] "
  local SURE
  read SURE
  if [ "$SURE" = "yes" ]; then
    stop
    rm -f "$PIDFILE"
    echo "Notice: log file is not be removed: '$LOGFILE'" >&2
    update-rc.d -f netrender-master remove
    rm -fv "$0"
  fi
}

case "$1" in
  start)
    start
    ;;
  stop)
    stop
    ;;
  uninstall)
    uninstall
    ;;
  restart)
    stop
    start
    ;;
  *)
    echo "Usage: $0 {start|stop|restart|uninstall}"
esac

sysvinitservice_netrender-slave

#!/bin/sh
### BEGIN INIT INFO
# Provides:          netrender-slave
# Required-Start:    $local_fs $network $named $time $syslog
# Required-Stop:     $local_fs $network $named $time $syslog
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Description:       Blender\ NetRender\ Slave
### END INIT INFO

SCRIPT=/mnt/my-data/netrender-slave.sh
RUNAS=ec2-user

PIDFILE=/var/run/netrender-slave.pid
LOGFILE=/var/log/netrender-slave.log

start() {
  if [ -f /var/run/$PIDNAME ] && kill -0 $(cat /var/run/$PIDNAME); then
    echo 'Service already running' >&2
    return 1
  fi
  echo 'Starting service…' >&2
  local CMD="$SCRIPT &> \"$LOGFILE\" & echo \$!"
  su -c "$CMD" $RUNAS > "$PIDFILE"
  echo 'Service started' >&2
}

stop() {
  if [ ! -f "$PIDFILE" ] || ! kill -0 $(cat "$PIDFILE"); then
    echo 'Service not running' >&2
    return 1
  fi
  echo 'Stopping service…' >&2
  kill -15 $(cat "$PIDFILE") && rm -f "$PIDFILE"
  echo 'Service stopped' >&2
}

uninstall() {
  echo -n "Are you really sure you want to uninstall this service? That cannot be undone. [yes|No] "
  local SURE
  read SURE
  if [ "$SURE" = "yes" ]; then
    stop
    rm -f "$PIDFILE"
    echo "Notice: log file is not be removed: '$LOGFILE'" >&2
    update-rc.d -f netrender-slave remove
    rm -fv "$0"
  fi
}

case "$1" in
  start)
    start
    ;;
  stop)
    stop
    ;;
  uninstall)
    uninstall
    ;;
  restart)
    stop
    start
    ;;
  *)
    echo "Usage: $0 {start|stop|restart|uninstall}"
esac