def export_gif(concat_file, filter_string, export_directory):
"""Export a GIF from the input frames, scaled down to 720p"""
meta.write({"processing": "Exporting GIF"})
benchmark = time()
# GIF encoding technique taken from
# http://blog.pkh.me/p/21-high-quality-gif-with-ffmpeg.html
# TODO: Should we force-scale GIF for any reason (decision)
# filter_string += ", scale=720:-1:flags=lanczos"
palette_file = path.join(export_directory, "palette.png")
subprocess.run([
FFMPEG_EXECUTABLE, "-y", "-f", "concat", "-i", concat_file,
"-filter_complex", filter_string + ", palettegen", palette_file
])
export_file = path.join(export_directory, "exported.gif")
subprocess.run([
FFMPEG_EXECUTABLE, "-y", "-f", "concat", "-i", concat_file, "-i",
palette_file, "-filter_complex",
filter_string + " [comp]; [comp][1:v] paletteuse", export_file
])
filesize = path.getsize(export_file)
meta.write({
"processing": None,
"gif": {
"filePath": "exported.gif",
"exported": datetime.now().isoformat(),
"processingTime": time() - benchmark,
"fileSize": filesize
}
})
def update_models():
meta.write({'processing': 'Updating models'})
updates_occurred = False
# Update existing models
for obj in bpy.data.objects:
if obj.get('elmyra-url') is not None:
if update_object(obj):
updates_occurred = True
meta.write({'processing': None})
return updates_occurred
def export_png(ffmpeg_input_options, export_directory):
meta.write({"processing": "Exporting PNG"})
benchmark = time()
export_file = path.join(export_directory, "exported.png")
ffmpeg_call = ffmpeg_input_options + [export_file]
subprocess.run(ffmpeg_call)
filesize = path.getsize(export_file)
meta.write({
"processing": None,
"png": {
"filePath": "exported.png",
"exported": datetime.now().isoformat(),
"processingTime": time() - benchmark,
"fileSize": filesize
}
})
def export_svg(image_directory, export_directory):
vector_input_files = glob(path.join(image_directory, "*.svg"))
if len(vector_input_files) > 0:
meta.write({"processing": "Exporting SVG"})
benchmark = time()
export_file = path.join(export_directory, "exported.svg")
copy(vector_input_files[0], export_file)
filesize = path.getsize(export_file)
meta.write({
"processing": None,
"svg": {
"filePath": "exported.svg",
"exported": datetime.now().isoformat(),
"processingTime": time() - benchmark,
"fileSize": filesize
}
})
def export_webm(concat_file, filter_string, export_directory):
meta.write({"processing": "Exporting WEBM"})
benchmark = time()
export_file = path.join(export_directory, "exported.webm")
subprocess.run([
FFMPEG_EXECUTABLE, "-y", "-f", "concat", "-i", concat_file,
"-filter_complex", filter_string, "-c:v", "libvpx-vp9", "-crf", "4",
"-speed", "1", "-b:v", "32M", export_file
])
filesize = path.getsize(export_file)
meta.write({
"processing": None,
"webm": {
"filePath": "exported.webm",
"exported": datetime.now().isoformat(),
"processingTime": time() - benchmark,
"fileSize": filesize
}
})
def export_ogv(concat_file, filter_string, export_directory):
meta.write({"processing": "Exporting OGV"})
benchmark = time()
export_file = path.join(export_directory, "exported.ogv")
subprocess.run([
FFMPEG_EXECUTABLE, "-y", "-f", "concat", "-i", concat_file,
"-filter_complex", filter_string, "-c:v", "libtheora", "-qscale:v",
"10", export_file
])
filesize = path.getsize(export_file)
meta.write({
"processing": None,
"ogv": {
"filePath": "exported.ogv",
"exported": datetime.now().isoformat(),
"processingTime": time() - benchmark,
"fileSize": filesize
}
})
def export_mp4(concat_file, filter_string, export_directory):
meta.write({"processing": "Exporting MP4"})
benchmark = time()
export_file = path.join(export_directory, "exported.mp4")
subprocess.run([
FFMPEG_EXECUTABLE, "-y", "-f", "concat", "-i", concat_file,
"-filter_complex", filter_string, "-c:v", "libx264", "-preset", "slow",
"-crf", "4", export_file
])
filesize = path.getsize(export_file)
meta.write({
"processing": None,
"mp4": {
"filePath": "exported.mp4",
"exported": datetime.now().isoformat(),
"processingTime": time() - benchmark,
"fileSize": filesize
}
})
def export_svg_sequence(image_directory, export_directory):
vector_input_files = glob(path.join(image_directory, "*.svg"))
if len(vector_input_files) > 0:
meta.write({"processing": "Exporting SVG Sequence"})
benchmark = time()
export_file = path.join(export_directory, "exported.svg.zip")
zip_file = ZipFile(export_file, 'w')
for frame in vector_input_files:
zip_file.write(frame, path.basename(frame))
filesize = path.getsize(export_file)
meta.write({
"processing": None,
"svg.zip": {
"filePath": "exported.svg.zip",
"exported": datetime.now().isoformat(),
"processingTime": time() - benchmark,
"fileSize": filesize
}
})
def export_png_sequence(image_directory, export_directory):
"""Export all input frames as PNGs inside a ZIP"""
meta.write({"processing": "Exporting PNG Sequence"})
benchmark = time()
raster_input_files = glob(path.join(image_directory, "*.png"))
export_file = path.join(export_directory, "exported.png.zip")
zip_file = ZipFile(export_file, 'w')
for frame in raster_input_files:
zip_file.write(frame, path.basename(frame))
filesize = path.getsize(export_file)
meta.write({
"processing": None,
"png.zip": {
"filePath": "exported.png.zip",
"exported": datetime.now().isoformat(),
"processingTime": time() - benchmark,
"fileSize": filesize
}
})
args = parse_custom_args()
common.ensure_addons()
if args.upload_id:
common.open_upload(args.upload_id)
version.save_new(args.id)
meta.write_media_info()
else:
run_updates = True
if args.min_interval:
meta = meta.get()
if 'lastUpdate' in meta:
run_updates = time() - meta['lastUpdate'] < args.min_interval
if run_updates:
version.open_latest(args.id)
# TODO: Find problem: Why does it update although hash stayed the same?
# (Happened on update form external sources manually)
# (Note 06/03/2016 - not sure if still applies)
if update.update_models():
version.save_new(args.id)
meta.write_media_info()
else:
meta.write({'lastUpdate': time()})
def render(target_time, device):
begin_time = time()
bpy.context.scene.cycles.seed = int(
begin_time) # Imagestacking random seed
bpy.context.scene.cycles.device = device
render_directory = path.join(bpy.path.abspath("//"), "rendered_frames")
if not path.exists(render_directory):
makedirs(render_directory)
first = bpy.context.scene.frame_start
last = bpy.context.scene.frame_end
total_frames = last - first + 1
rendered_frames = sorted(glob(path.join(render_directory, "*.png")))
requested_frames = []
if len(rendered_frames) < total_frames:
meta.write({"processing": "Rendering missing frames"})
# Build the initial list of frames based on a binary split pattern:
#
# | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | (10 example frame numbers)
# -----------------------------------------
# | | | | | 1 | | | | | |
# | | | 2 | | | | | 3 | | | (split pattern and
# | 4 | | | 5 | | 6 | | | 7 | | render order)
# | | 8 | | | | | 9 | | |10 |
all_frames = range(first, last + 1)
numbers = [
int(path.basename(r).split(".")[0]) for r in rendered_frames
]
all_ranges = []
buffer_range = []
for frame in all_frames:
if frame not in numbers:
buffer_range.append(frame)
elif len(buffer_range) > 0:
all_ranges.append(buffer_range)
buffer_range = []
if len(buffer_range) > 0:
all_ranges.append(buffer_range)
buffer_range = []
while len(all_ranges) > 0:
largest_range = max(all_ranges, key=lambda r: [len(r), -min(r)])
all_ranges.remove(largest_range)
split_index = len(largest_range) // 2
for index, frame in enumerate(largest_range):
if index == split_index:
requested_frames.append({
"number": frame,
"available_samples": 0,
"requested_samples": SAMPLES_INITIAL,
"available_frame": None
})
if len(buffer_range) > 0:
all_ranges.append(buffer_range)
buffer_range = []
else:
buffer_range.append(frame)
if len(buffer_range) > 0:
all_ranges.append(buffer_range)
buffer_range = []
else:
samples = [
int(path.basename(r).split(".")[1]) for r in rendered_frames
]
min_samples = min(samples)
max_samples = max(samples)
if min_samples < QUALITY_PREVIEW:
render_quality = "draft"
elif min_samples > QUALITY_PREVIEW:
render_quality = "preview"
elif min_samples > QUALITY_PRODUCTION:
render_quality = "production"
meta.write({
"processing": "Rendering more samples",
"minimumSamples": min_samples,
"renderQuality": render_quality
})
if min_samples != max_samples:
for frame in rendered_frames:
frame_info = path.basename(frame).split(".")
frame_number = int(frame_info[0])
frame_samples = int(frame_info[1])
if frame_samples < max_samples:
requested_frames.append({
"number": frame_number,
"available_samples": frame_samples,
"requested_samples": max_samples - frame_samples,
"available_frame": frame
})
elif min_samples < SAMPLES_CAP:
for frame in rendered_frames:
frame_info = path.basename(frame).split(".")
frame_number = int(frame_info[0])
requested_frames.append({
"number":
frame_number,
"available_samples":
min_samples,
"requested_samples":
int(min_samples * SAMPLES_MULTIPLIER),
"available_frame":
frame
})
for frame in requested_frames:
render_frame(render_directory, frame["number"],
frame["available_samples"], frame["requested_samples"],
frame["available_frame"])
if time() - begin_time > target_time:
break
meta.write({"processing": False})
def render_frame(render_directory,
frame,
existing_samples,
additional_samples,
existing_frame=None):
begin_time = time()
bpy.context.scene.frame_current = frame
bpy.context.scene.cycles.samples = additional_samples
# Enable SVG export when using Freestyle
if bpy.context.scene.render.use_freestyle:
bpy.context.scene.svg_export.use_svg_export = True
cache_filename = ".render-cache.png"
cache_filepath = path.join(render_directory, cache_filename)
bpy.context.scene.render.filepath = cache_filepath
bpy.ops.render.render(write_still=True)
if existing_frame:
alpha = float(existing_samples) / float(existing_samples +
additional_samples)
result_samples = existing_samples + additional_samples
result_filename = "{0:06}.{1}.png".format(frame, result_samples)
result_filepath = path.join(render_directory, result_filename)
ffmpeg_call = [
FFMPEG_EXECUTABLE, "-y", "-i", existing_frame, "-i",
cache_filepath, "-filter_complex",
f"[1:v][0:v]blend=all_expr='A*{alpha}+B*{1 - alpha}'",
result_filepath
]
subprocess.run(ffmpeg_call)
remove(existing_frame)
remove(cache_filepath)
else:
result_filename = "{0:06}.{1}.png".format(frame, additional_samples)
result_filepath = path.join(render_directory, result_filename)
rename(cache_filepath, result_filepath)
if bpy.context.scene.render.use_freestyle:
svg_old_filepath = path.join(
render_directory, "{0}{1:04}.svg".format(cache_filename, frame))
svg_new_filepath = path.join(render_directory,
"{0:06}.svg".format(frame))
if existing_frame:
remove(svg_new_filepath)
rename(svg_old_filepath, svg_new_filepath)
# Thumbnail creation
thumbnail_filepath = path.join(render_directory, "..", "thumbnail.png")
subprocess.run([
FFMPEG_EXECUTABLE, "-y", "-f", "image2", "-i", result_filepath, "-vf",
"scale=480:270:force_original_aspect_ratio=decrease",
thumbnail_filepath
])
meta.write({
"renderDevice": bpy.context.scene.cycles.device,
"lastRenderedFrame": frame,
"lastRenderDuration": time() - begin_time,
"lastRender": datetime.now().isoformat(),
"lastRenderedSamples": additional_samples
})