blender-addons/storypencil/render.py
2023-07-05 09:41:03 +02:00

313 lines
12 KiB
Python

# SPDX-License-Identifier: GPL-2.0-or-later
import bpy
import os
import shutil
import sys
from datetime import datetime
from bpy.types import Operator
from .utils import get_keyframe_list
# ------------------------------------------------------
# Button: Render VSE
# ------------------------------------------------------
class STORYPENCIL_OT_RenderAction(Operator):
bl_idname = "storypencil.render_vse"
bl_label = "Render Strips"
bl_description = "Render VSE strips"
# Extension by FFMPEG container type
video_ext = {
"MPEG1": ".mpg",
"MPEG2": ".dvd",
"MPEG4": ".mp4",
"AVI": ".avi",
"QUICKTIME": ".mov",
"DV": ".dv",
"OGG": ".ogv",
"MKV": ".mkv",
"FLASH": ".flv",
"WEBM": ".webm"
}
# Extension by image format
image_ext = {
"BMP": ".bmp",
"IRIS": ".rgb",
"PNG": ".png",
"JPEG": ".jpg",
"JPEG2000": ".jp2",
"TARGA": ".tga",
"TARGA_RAW": ".tga",
"CINEON": ".cin",
"DPX": ".dpx",
"OPEN_EXR_MULTILAYER": ".exr",
"OPEN_EXR": ".exr",
"HDR": ".hdr",
"TIFF": ".tif",
"WEBP": ".webp"
}
# --------------------------------------------------------------------
# Format an int adding 4 zero padding
# --------------------------------------------------------------------
def format_to4(self, value):
return f"{value:04}"
# --------------------------------------------------------------------
# Add frames every N frames
# --------------------------------------------------------------------
def add_missing_frames(self, sq, step, keyframe_list):
missing = []
lk = len(keyframe_list)
if lk == 0:
return
# Add mid frames
if step > 0:
for i in range(0, lk - 1):
dist = keyframe_list[i + 1] - keyframe_list[i]
if dist > step:
delta = int(dist / step)
e = 1
for x in range(1, delta):
missing.append(keyframe_list[i] + (step * e))
e += 1
keyframe_list.extend(missing)
keyframe_list.sort()
# ------------------------------
# Execute
# ------------------------------
def execute(self, context):
scene = bpy.context.scene
image_settings = scene.render.image_settings
is_video_output = image_settings.file_format in {
'FFMPEG', 'AVI_JPEG', 'AVI_RAW'}
step = scene.storypencil_render_step
sequences = scene.sequence_editor.sequences_all
prv_start = scene.frame_start
prv_end = scene.frame_end
prv_frame = bpy.context.scene.frame_current
prv_path = scene.render.filepath
prv_format = image_settings.file_format
prv_use_file_extension = scene.render.use_file_extension
prv_ffmpeg_format = scene.render.ffmpeg.format
rootpath = bpy.path.abspath(scene.storypencil_render_render_path)
only_selected = scene.storypencil_render_onlyselected
channel = scene.storypencil_render_channel
context.window.cursor_set('WAIT')
# Create list of selected strips because the selection is changed when adding new strips
Strips = []
Metas = []
for sq in sequences:
if sq.type in ('SCENE', 'META'):
if only_selected is False or sq.select is True:
if sq.type == 'META' and is_video_output:
Metas.append(sq)
continue
if sq.type == 'SCENE' and is_video_output and sq.parent_meta():
continue
if sq.type == 'SCENE':
Strips.append(sq)
# Sort strips
Strips = sorted(Strips, key=lambda strip: strip.frame_start)
# For video, clear BL_proxy folder because sometimes the video
# is not rendered as expected if this folder has data.
# This ensure the output video is correct.
if is_video_output:
proxy_folder = os.path.join(rootpath, "BL_proxy")
if os.path.exists(proxy_folder):
for filename in os.listdir(proxy_folder):
file_path = os.path.join(proxy_folder, filename)
try:
if os.path.isfile(file_path) or os.path.islink(file_path):
os.unlink(file_path)
elif os.path.isdir(file_path):
shutil.rmtree(file_path)
except Exception as e:
print('Failed to delete %s. Reason: %s' %
(file_path, e))
try:
Videos = []
# Render Meta Strips (Only video)
for meta in Metas:
meta_name = meta.name
scene.frame_start = int(meta.frame_start + meta.frame_offset_start)
scene.frame_end = int(meta.frame_start + meta.frame_final_duration - 1)
print("Meta:" + meta_name)
print("Video From:", scene.frame_start,
"To", scene.frame_end)
# Video
filepath = os.path.join(rootpath, meta_name)
if image_settings.file_format == 'FFMPEG':
ext = self.video_ext[scene.render.ffmpeg.format]
else:
ext = '.avi'
if not filepath.endswith(ext):
filepath += ext
scene.render.use_file_extension = False
scene.render.filepath = filepath
# Render Animation
bpy.ops.render.render(animation=True)
# Add video to add meta strip later
if scene.storypencil_add_render_strip:
Videos.append(
[filepath, meta.frame_start + meta.frame_offset_start])
# Read all scene strips and render the output (No META)
for sq in Strips:
strip_name = sq.name
strip_scene = sq.scene
scene.frame_start = int(sq.frame_start + sq.frame_offset_start)
scene.frame_end = int(scene.frame_start + sq.frame_final_duration - 1) # Image
if is_video_output is False:
# Get list of any keyframe
strip_start = sq.frame_offset_start
if strip_start < strip_scene.frame_start:
strip_start = strip_scene.frame_start
strip_end = strip_start + sq.frame_final_duration - 1
keyframe_list = get_keyframe_list(
strip_scene, strip_start, strip_end)
self.add_missing_frames(sq, step, keyframe_list)
scene.render.use_file_extension = True
foldername = strip_name
if scene.storypencil_add_render_byfolder is True:
root_folder = os.path.join(rootpath, foldername)
else:
root_folder = rootpath
frame_nrr = 0
print("Render:" + strip_name + "/" + strip_scene.name)
print("Image From:", strip_start, "To", strip_end)
for key in range(int(strip_start), int(strip_end) + 1):
if key not in keyframe_list:
continue
keyframe = key + sq.frame_start
if scene.use_preview_range:
if keyframe < scene.frame_preview_start:
continue
if keyframe > scene.frame_preview_end:
break
else:
if keyframe < scene.frame_start:
continue
if keyframe > scene.frame_end:
break
# For frame name use only the number
if scene.storypencil_render_numbering == 'FRAME':
# Real
framename = strip_name + '.' + self.format_to4(key)
else:
# Consecutive
frame_nrr += 1
framename = strip_name + '.' + \
self.format_to4(frame_nrr)
filepath = os.path.join(root_folder, framename)
scene.render.filepath = filepath
# Render Frame
scene.frame_set(int(keyframe - 1.0), subframe=0.0)
bpy.ops.render.render(
animation=False, write_still=True)
# Add strip with the corresponding length
if scene.storypencil_add_render_strip:
frame_start = sq.frame_start + key - 1
index = keyframe_list.index(key)
if index < len(keyframe_list) - 1:
key_next = keyframe_list[index + 1]
frame_end = frame_start + (key_next - key)
else:
frame_end = scene.frame_end + 1
if index == 0 and frame_start > scene.frame_start:
frame_start = scene.frame_start
if frame_end < frame_start:
frame_end = frame_start
image_ext = self.image_ext[image_settings.file_format]
bpy.ops.sequencer.image_strip_add(directory=root_folder,
files=[
{"name": framename + image_ext}],
frame_start=int(frame_start),
frame_end=int(frame_end),
channel=channel)
else:
print("Render:" + strip_name + "/" + strip_scene.name)
print("Video From:", scene.frame_start,
"To", scene.frame_end)
# Video
filepath = os.path.join(rootpath, strip_name)
if image_settings.file_format == 'FFMPEG':
ext = self.video_ext[scene.render.ffmpeg.format]
else:
ext = '.avi'
if not filepath.endswith(ext):
filepath += ext
scene.render.use_file_extension = False
scene.render.filepath = filepath
# Render Animation
bpy.ops.render.render(animation=True)
# Add video to add strip later
if scene.storypencil_add_render_strip:
Videos.append(
[filepath, sq.frame_start + sq.frame_offset_start])
# Add pending video Strips
for vid in Videos:
bpy.ops.sequencer.movie_strip_add(filepath=vid[0],
frame_start=int(vid[1]),
channel=channel)
scene.frame_start = prv_start
scene.frame_end = prv_end
scene.render.use_file_extension = prv_use_file_extension
image_settings.file_format = prv_format
scene.render.ffmpeg.format = prv_ffmpeg_format
scene.render.filepath = prv_path
scene.frame_set(int(prv_frame))
context.window.cursor_set('DEFAULT')
return {'FINISHED'}
except:
print("Unexpected error:" + str(sys.exc_info()))
self.report({'ERROR'}, "Unable to render")
scene.frame_start = prv_start
scene.frame_end = prv_end
scene.render.use_file_extension = prv_use_file_extension
image_settings.file_format = prv_format
scene.render.filepath = prv_path
scene.frame_set(int(prv_frame))
context.window.cursor_set('DEFAULT')
return {'FINISHED'}