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extends Viewport
class_name GifRecorder, 'res://addons/GifMaker/gif.svg'
signal record_past_buffer_filled
signal encoding_progress(percentage, frames_done)
signal done_encoding
const GIFExporter = preload('res://addons/GifMaker/godot-gdgifexporter/gdgifexporter/exporter.gd')
const MedianCut = preload('res://addons/GifMaker/godot-gdgifexporter/gdgifexporter/quantization/median_cut.gd')
const Uniform = preload('res://addons/GifMaker/godot-gdgifexporter/gdgifexporter/quantization/uniform.gd')
enum RenderType {
RENDER_3D,
RENDER_2D
}
enum RecordType {
RECORD_PAST,
RECORD
}
enum Framerate {
FPS_100 = 1,
FPS_50 = 2,
FPS_33 = 3,
FPS_25 = 4,
FPS_20 = 5,
FPS_10 = 10,
FPS_8 = 12,
FPS_4 = 24,
FPS_2 = 48,
FPS_1 = 100
}
enum Quantization {
MEDIAN_CUT,
UNIFORM
}
# TODO: Re-write get_properties_list to fancify input
# TODO: Perhaps find a way to render the viewport in editor
# TODO: Record a lil' video with an example Godot project
export(int, 'Render 3D', 'Render 2D') var render_type = RenderType.RENDER_3D setget set_render_type
export(RecordType) var record_type = RecordType.RECORD_PAST
export var seconds = 6.28 setget set_seconds
export(Framerate) var framerate = Framerate.FPS_25 setget set_framerate
export(Quantization) var quantization = Quantization.UNIFORM
export var autostart = false
export(NodePath) var capture_node_path
onready var capture_node = get_node(capture_node_path)
export var preview = false
export var preview_render = false
export(NodePath) var preview_path
onready var preview_node = get_node(preview_path)
var frame_amount = 0
var frame_passed = 0
var frames = []
var exporter
var frame_timer
var thread
func _ready():
frame_timer = Timer.new()
add_child(frame_timer)
assert(capture_node, 'No capture node detected, please add a Camera3D or GifRectangle to get started')
self.framerate = framerate
self.seconds = seconds
self.render_type = render_type
frame_timer.connect('timeout', self, 'capture')
if autostart:
start()
func start():
frame_timer.start()
func stop():
frame_timer.stop()
func clear():
frames = []
func render(metadata = null):
stop()
exporter = GIFExporter.new(size.x, size.y)
if OS.can_use_threads():
thread = Thread.new()
thread.start(self, 'encode', metadata)
while thread.is_alive():
yield(get_tree(), 'idle_frame')
return thread.wait_to_finish()
else:
return encode(metadata)
func encode(metadata = null):
var frames_done = 0
var quantization_method = \
Uniform if quantization == Quantization.UNIFORM else MedianCut
for frame in frames:
emit_signal('encoding_progress', float(frames_done) / frames.size(), frames_done)
frame.convert(Image.FORMAT_RGBA8)
exporter.add_frame(frame, framerate, quantization_method)
frames_done += 1
if preview and preview_render:
var texture = ImageTexture.new()
texture.create_from_image(frame)
preview_node.texture = texture
if metadata:
exporter.add_comment_ext('GIF_MAKER::' + var2str(metadata))
exporter.add_comment_ext('🙋 Made with GifMaker by Bram Dingelstad')
emit_signal('encoding_progress', 1.0, frames_done)
emit_signal('done_encoding')
return exporter.export_file_data()
func render_to_file(file_path, metadata = null):
var buffer = render(metadata)
if buffer is GDScriptFunctionState:
buffer = yield(buffer, 'completed')
var file = File.new()
file.open(file_path, File.WRITE)
file.store_buffer(buffer)
file.close()
func capture():
var frame = Image.new()
var screenshot
match render_type:
RenderType.RENDER_2D:
screenshot = get_tree().root.get_texture().get_data()
screenshot.flip_y()
RenderType.RENDER_3D:
screenshot = get_texture().get_data()
if not render_target_v_flip:
screenshot.flip_y()
frame.create(size.x, size.y, false, screenshot.get_format())
frame.blit_rect(
screenshot,
Rect2(capture_node.rect_position if render_type == RenderType.RENDER_2D else Vector2.ZERO, size),
Vector2.ZERO
)
frames.append(frame)
match record_type:
RecordType.RECORD_PAST:
while frames.size() > frame_amount:
frames.pop_front()
emit_signal('record_past_buffer_filled')
if preview:
var texture = ImageTexture.new()
texture.create_from_image(frame)
preview_node.texture = texture
func _process(delta):
render_target_update_mode = UPDATE_DISABLED if render_type == RenderType.RENDER_2D else UPDATE_ALWAYS
match render_type:
RenderType.RENDER_2D:
size = capture_node.rect_size
RenderType.RENDER_3D:
$Camera.transform = capture_node.transform
$Camera.fov = $Camera.fov
# TODO: Sync more properties like culling mask, projection, etc
func update_frame_amount():
frame_amount = 100 / framerate * seconds
func set_framerate(_framerate):
framerate = _framerate
if is_inside_tree():
frame_timer.wait_time = 1.0 / (100.0 / framerate)
update_frame_amount()
func set_seconds(_seconds):
seconds = _seconds
update_frame_amount()
func set_render_type(_render_type):
render_type = _render_type
match render_type:
RenderType.RENDER_3D:
var shadow_capture_node = capture_node.duplicate()
shadow_capture_node.name = 'Camera'
shadow_capture_node.script = null
add_child(shadow_capture_node)
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