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Blender multithreaded rendering
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| CHROMASTART=0 | |
| CHROMAEND=0 | |
| MAINSTART=0 | |
| MAINEND=0 | |
| NJOBS=8 | |
| BATCH=$$(( ($(END) - $(START)) / $(NJOBS) )) | |
| LAST=$$(( $(NJOBS)-1 )) | |
| BLENDFILES=$(wildcard *.blend) | |
| RULES=$(shell seq 0 $(LAST)) | |
| CHROMARULES=$(addprefix render/chroma, $(addsuffix .mkv, $(RULES))) | |
| MAINRULES=$(addprefix render/main, $(addsuffix .mkv, $(RULES))) | |
| default: | |
| @echo "Use render/chroma.mkv or youtube.mkv rules." | |
| clean: | |
| rm -Rf source/BL_proxy render/* | |
| upload: youtube.mkv thumb.png | |
| youtube-upload --privacy=private --thumbnail=thumb.png --title=youtube.mkv youtube.mkv | |
| reupload: | |
| youtube-upload --privacy=private --thumbnail=thumb.png --title=youtube.mkv youtube.mkv | |
| render/chroma.txt: Makefile | |
| truncate -s 0 $@ | |
| for f in $(notdir $(CHROMARULES)); do echo "file '$$f'" >> $@; done | |
| render/main.txt: Makefile | |
| truncate -s 0 $@ | |
| for f in $(notdir $(MAINRULES)); do echo "file '$$f'" >> $@; done | |
| render/chroma.mkv: render/chroma.txt $(CHROMARULES) | |
| nice ffmpeg -y -f concat -i $< -c:v copy -f matroska $@ | |
| rm -f $(CHROMARULES) | |
| youtube.mkv: render/main.txt $(MAINRULES) render/session.flac | |
| nice ffmpeg -y -f concat -i render/main.txt -i render/session.flac -map 0:0 -map 1:0 -c:v libx264 -preset medium -crf 18 -c:a copy -f matroska $@ | |
| render/chroma%.mkv: $(BLENDFILES) | |
| ./renderpart "Chroma Key" $(NJOBS) $@ $(CHROMASTART) $(CHROMAEND) | |
| render/main%.mkv: $(BLENDFILES) | |
| ./renderpart "Video Edits" $(NJOBS) $@ $(MAINSTART) $(MAINEND) | |
| .PHONY: default clean upload reupload |
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| #!/usr/bin/env php | |
| <?php | |
| list($me, $scene, $njobs, $output, $start, $end) = $argv; | |
| if($end == 0) die(1); | |
| preg_match('%(?<i>[0-9+])([^0-9]*)$%', $output, $match); | |
| $i = (int)$match['i']; | |
| $len = floor(((float)$end - (float)$start) / (float)$njobs); | |
| $last = (int)((int)$njobs - 1); | |
| $command = sprintf( | |
| 'nice blender -noaudio -b %s -S %s -o %s -x 0 -s %d -e %d -a | grep Saving', | |
| escapeshellarg(substr(shell_exec('find . -maxdepth 1 -name "*.blend" | head -n 1'), 0, -1)), | |
| escapeshellarg($scene), | |
| escapeshellarg($output), | |
| $i === 0 ? $start : ($start + $i*$len+1), | |
| $i === $last ? $end : ($start + ($i+1)*$len) | |
| ); | |
| echo $command."\n"; | |
| passthru($command, $r); | |
| die($r); |
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You should use nproc(1) to determine how many processes to run at once.