Mayavi: ๋ฒ„๊ทธ: ์‹œ๊ฐํ™” ๋ชจ๋“ˆ์˜ ์‹œ๊ฐ์  ์ˆœ์„œ์™€ ์ƒํ˜ธ ์ž‘์šฉํ•˜๋Š” ์œ ์„ ์˜ ๋ถˆํˆฌ๋ช…๋„

์— ๋งŒ๋“  2017๋…„ 03์›” 06์ผ  ยท  10์ฝ”๋ฉ˜ํŠธ  ยท  ์ถœ์ฒ˜: enthought/mayavi

์œ ์„ ํ˜•์˜ ๋ถˆํˆฌ๋ช…๋„๋ฅผ ๊ธฐ๋ณธ๊ฐ’(1.0)์ด ์•„๋‹Œ ๋‹ค๋ฅธ ๊ฐ’์œผ๋กœ ๋ณ€๊ฒฝํ•˜๋ฉด ์ŠคํŠธ๋ฆผ๋ผ์ธ์„ ๊ฐ€๋ ค์•ผ ํ•˜๋Š” ๋‹ค๋ฅธ ๊ฐ์ฒด๊ฐ€ ์žˆ๋Š” ๊ฒฝ์šฐ์—๋„ ์žฅ๋ฉด์˜ ์ „๋ฉด์— ์œ ์„ ํ˜•์ด ํ‘œ์‹œ๋ฉ๋‹ˆ๋‹ค.

์˜ˆ๋ฅผ ๋“ค์–ด, http://docs.enthought.com/mayavi/mayavi/auto/example_magnetic_field_lines.html์— ์ œ๊ณต๋œ ์ž๊ธฐ์žฅ์˜ ์˜ˆ๋ฅผ

์ฝ”๋“œ๋ฅผ ์žˆ๋Š” ๊ทธ๋Œ€๋กœ ์‹คํ–‰ํ•˜๋ฉด ๋‹ค์Œ ์žฅ๋ฉด์ด ํ‘œ์‹œ๋ฉ๋‹ˆ๋‹ค.
test_bug_1

๊ทธ๋Ÿฌ๋‚˜ ํ•„๋“œ๋ผ์ธ์˜ ๋ถˆํˆฌ๋ช…๋„๋ฅผ ๋ณ€๊ฒฝํ•˜์—ฌ ๊ธฐ๋ณธ๊ฐ’ 1.0์„ ๋‹ค๋ฅด๊ฒŒ ํ•˜๋ฉด( field_lines.actor.property.opacity = 0.99 ํ•˜๊ฑฐ๋‚˜ Mayavi ํŒŒ์ดํ”„๋ผ์ธ์—์„œ ์ˆ˜๋™์œผ๋กœ ๋ถˆํˆฌ๋ช…๋„๋ฅผ ์กฐ์ •ํ•˜์—ฌ) ๋‹ค์Œ ์žฅ๋ฉด๊ณผ ๊ฐ™์€ ๊ฒฐ๊ณผ๋ฅผ ์–ป์Šต๋‹ˆ๋‹ค.
test_bug_2
ํ•„๋“œ๋ผ์ธ์€ ์ด์ œ ์žฅ๋ฉด์˜ ์ „๋ฉด์— ์žˆ์ง€๋งŒ ๋“ฑ๊ณ ์„ ์€ ์ด์ „ ์ด๋ฏธ์ง€์™€ ๊ฐ™์ด ์—ฌ์ „ํžˆ ๋ชจํ˜ธํ•ด์•ผ ํ•ฉ๋‹ˆ๋‹ค.

๊ฐ€์žฅ ์œ ์šฉํ•œ ๋Œ“๊ธ€

์ตœ๊ทผ VTK ๋ฒ„์ „์—์„œ๋Š” ๋‹ค์Œ๊ณผ ๊ฐ™์ด ์ž˜ ์ž‘๋™ํ•ฉ๋‹ˆ๋‹ค.

from mayavi import mlab
f = mlab.figure()
mlab.points3d(0,0,1,color=(.8,.8,.8),resolution=100,opacity=.99)
mlab.points3d(0,0,0,color=(.8,.8,.8),resolution=100,opacity=.99)
f.scene.renderer.use_depth_peeling = True

๋˜ํ•œ ์ž ์žฌ์ ์œผ๋กœ ์‚ฌ์šฉํ•  ์ˆ˜ ์žˆ๋Š” f.scene.renderer.maximum_number_of_peels ๊ฐ€ ์žˆ์Šต๋‹ˆ๋‹ค. ๊ธฐ๋ณธ์ ์œผ๋กœ 4์ด์ง€๋งŒ ๋ Œ๋”๋ง ์†๋„๊ฐ€ ๋Š๋ ค์ง€์ง€๋งŒ ์ œํ•œ ์—†์ด 0์œผ๋กœ ์„ค์ •ํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ์ด๊ฒƒ์œผ๋กœ ๋•œ์งˆ ํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.

์ด ๋ฌธ์ œ๋ฅผ ๋‹ซ์•„๋„ ๋ ๊นŒ์š”? ์ด๊ฒƒ์€ ๋‚ด๊ฐ€ ์ „์— ๋ณธ ๋งŽ์€ ๋ฌธ์ œ๋ฅผ ํ•ด๊ฒฐํ•˜๋Š” ๊ฒƒ ๊ฐ™์Šต๋‹ˆ๋‹ค.

๋ชจ๋“  10 ๋Œ“๊ธ€

์ด๊ฒƒ์€ ๊ฐ€๊นŒ์šด ์žฅ๋ž˜์— ๊ณ ์น  ์ˆ˜ ์žˆ๋Š” ๋ฌธ์ œ์ž…๋‹ˆ๊นŒ? ๊ทธ๋ ‡์ง€ ์•Š๋‹ค๋ฉด ๋‚ด ๋ฌธ์ œ๋ฅผ ํ•ด๊ฒฐํ•˜๋Š” ๋‹ค๋ฅธ ๋ฐฉ๋ฒ•์„ ์ฐพ์„ ์ˆ˜ ์žˆ๋„๋ก ์•Œ๋ ค์ฃผ์‹œ๋ฉด ๊ฐ์‚ฌํ•˜๊ฒ ์Šต๋‹ˆ๋‹ค. ๊ฐ์‚ฌํ•ฉ๋‹ˆ๋‹ค

์ด๊ฒƒ์€ ๋‹ค๋ฅธ ๊ฐœ์ฒด์—๋„ ์ ์šฉ๋˜๋Š” ๊ฒƒ ๊ฐ™์Šต๋‹ˆ๋‹ค. ์ €๋Š” points3d์™€ ํ•จ๊ป˜ contour3d๋ฅผ ์‚ฌ์šฉํ•˜๊ณ  ์žˆ์œผ๋ฉฐ ํฌ์ธํŠธ์˜ ๋ถˆํˆฌ๋ช…๋„๋ฅผ 1.0์ด ์•„๋‹Œ ๋‹ค๋ฅธ ๊ฐ’์œผ๋กœ ์„ค์ •ํ•˜๋ฉด ํ‘œ๋ฉด์ด ๋” ์ด์ƒ ํฌ์ธํŠธ๋ฅผ ๊ฐ€๋ฆฌ์ง€ ์•Š๊ฒŒ ๋ฉ๋‹ˆ๋‹ค.

๋‘ ๊ฐœ์˜ points3d ๊ฐœ์ฒด์— ๋Œ€ํ•ด ๋™์ผํ•œ ๋ฌธ์ œ๋ผ๊ณ  ์ƒ๊ฐํ•˜๋Š” ๊ฒƒ์ด ๋ฌด์—‡์ธ์ง€ ์•Œ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ๋‹ค์Œ์€ ๋ถˆํˆฌ๋ช…๋„๊ฐ€ .99๋กœ ์„ค์ •๋œ ๊ฒฝ์šฐ ๋ Œ๋”๋ง ์ˆœ์„œ์— ๋”ฐ๋ผ ๋ Œ๋”๋ง๋˜๋Š” 2๊ฐœ์˜ ๊ตฌ ๋ชจ์–‘์ด ์–ด๋–ป๊ฒŒ ๋‹ฌ๋ผ์ง€๋Š”์ง€ ๋ณด์—ฌ์ฃผ๋Š” ๋ช‡ ๊ฐ€์ง€ ์˜ˆ์ž…๋‹ˆ๋‹ค. ๊ทธ๋Ÿฌ๋‚˜ ๋ถˆํˆฌ๋ช…๋„๊ฐ€ 1๋กœ ์„ค์ •๋œ ๊ฒฝ์šฐ์—๋Š” ๊ทธ๋ ‡์ง€ ์•Š์Šต๋‹ˆ๋‹ค.

mlab.figure()
mlab.points3d(0,0,1,color=(.8,.8,.8),resolution=100,opacity=.99)
mlab.points3d(0,0,0,color=(.8,.8,.8),resolution=100,opacity=.99)

2

mlab.figure()
mlab.points3d(0,0,0,color=(.8,.8,.8),resolution=100,opacity=.99)
mlab.points3d(0,0,1,color=(.8,.8,.8),resolution=100,opacity=.99)

4

mlab.figure()
mlab.points3d(0,0,1,color=(.8,.8,.8),resolution=100)
mlab.points3d(0,0,0,color=(.8,.8,.8),resolution=100)

1

mlab.figure()
mlab.points3d(0,0,0,color=(.8,.8,.8),resolution=100)
mlab.points3d(0,0,1,color=(.8,.8,.8),resolution=100)

3

์ด ๋ฌธ์ œ๋Š” ์กฐ๋ช… ๋˜๋Š” light_manager('vtk' ๋˜๋Š” 'raymond')์˜ ์„ ํƒ์— ์˜์กดํ•˜์ง€ ์•Š๋Š” ๊ฒƒ ๊ฐ™์Šต๋‹ˆ๋‹ค.

ํ•œ ๊ฐ€์ง€ ํ•ด๊ฒฐ ๋ฐฉ๋ฒ•์€ ๋จผ์ € ํ™”๋ฉด ์•ˆํŒŽ์œผ๋กœ ์ถ•์„ ๋”ฐ๋ผ ๊นŠ์ด๋ณ„๋กœ ๋ Œ๋”๋งํ•  ๊ฐœ์ฒด๋ฅผ ์ •๋ ฌํ•˜๋Š” ๊ฒƒ์ผ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.

์ „๋ฉด ์ปฌ๋ง ์˜ต์…˜์„ ์ผœ์•ผ ํ•  ์ˆ˜๋„ ์žˆ์Šต๋‹ˆ๋‹ค. ์ด ์‹œ๋„:

mlab.figure()
g1 = mlab.points3d(0,0,1,color=(.8,.8,.8),resolution=100,opacity=.99)
g2 = mlab.points3d(0,0,0,color=(.8,.8,.8),resolution=100,opacity=.99)
g1.actor.property.frontface_culling = True
g2.actor.property.frontface_culling = True

๊ฐ์‚ฌํ•ฉ๋‹ˆ๋‹ค Prabhu---frontface_culling์ด ๋น„์ฃผ์–ผ์„ ๊ฐœ์„ ํ–ˆ๋‹ค๊ณ  ์ƒ๊ฐํ•˜์ง€๋งŒ ๋ Œ๋”๋ง ์ˆœ์„œ๋Š” ์—ฌ์ „ํžˆ ๋ฐ˜ํˆฌ๋ช…ํ•œ ๊ฒฝ์šฐ์—๋งŒ ์š”์†Œ์˜€์Šต๋‹ˆ๋‹ค.

๋‚˜๋Š” ๊ทธ ๊ด€์ฐฐ์„ vtk๋งŒ์œผ๋กœ ์žฌํ˜„ํ–ˆ์Šต๋‹ˆ๋‹ค(๋‚ฎ์€ ์ˆ˜์ค€์˜ ๋ฌธ์ œ์ž…๋‹ˆ๋‹ค).

๋” ๋งŽ์ด ์ฝ์€ ํ›„์— vtk์— ํ•˜๋‚˜ ๋˜๋Š” ๋‘ ๊ฐœ์˜ ์†”๋ฃจ์…˜์ด ๋‚ด์žฅ๋˜์–ด ์žˆ๋‹ค๊ณ  ์ƒ๊ฐํ•˜์ง€๋งŒ ๋‹ค๋ฅธ ์†”๋ฃจ์…˜์€ ๋ Œ๋”๋งํ•˜๊ธฐ ์ „์— ๊ฐœ์ฒด๋ฅผ ์ •๋ ฌํ•˜๋Š” ๊ฒƒ์ผ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.

๋‹ค์Œ์€ ๊ด€๋ จ์„ฑ์ด ์žˆ๋Š” ๊ฒƒ์œผ๋กœ ๋ณด์ด๋Š” vtk์— ๋Œ€ํ•œ ๋ช‡ ๊ฐ€์ง€ ๋งํฌ์ž…๋‹ˆ๋‹ค.
https://www.vtk.org/Wiki/VTK/Examples/Cxx/Visualization/CorrectlyRenderingTranslucentGeometry
https://www.vtk.org/Wiki/VTK/Depth_Peeling

๊ทธ๋ฆฌ๊ณ  ๊ตฌ์ฒด ์‚ฌ๋ก€๋ฅผ ์žฌํ˜„ํ•˜๋Š” ๋ฐ ์‚ฌ์šฉํ•œ ๋ช‡ ๊ฐ€์ง€ ๋งํฌ:
https://lorensen.github.io/VTKExamples/site/Python/GeometricObjects/Sphere/
https://www.vtk.org/Wiki/VTK/Examples/Cxx/Visualization/Opacity

ํ† ๋ก ์— ์ถ”๊ฐ€ํ•˜๊ณ  ์œ ์šฉํ•œ ๋งํฌ๋ฅผ ์ œ๊ณตํ•ด ์ฃผ์…”์„œ ๊ฐ์‚ฌํ•ฉ๋‹ˆ๋‹ค. ์ €๋Š” VTK ๋˜๋Š” ๊นŠ์ด ํ•„๋ง์— ๋Œ€ํ•ด ์ž˜ ์•Œ์ง€ ๋ชปํ•˜์ง€๋งŒ, ์ œ ์›๋ž˜ ์˜ˆ์ œ์™€ ์ œ๊ฐ€ ์ž‘์—… ์ค‘์ธ ํ”„๋กœ์ ํŠธ์—์„œ ํšจ๊ณผ๊ฐ€ ์žˆ์—ˆ๋˜ ๊ฐ„๋‹จํ•œ ์†”๋ฃจ์…˜์€ ๋‹ค์Œ์„ ํฌํ•จํ•˜๋Š” ๊ฒƒ์ด์—ˆ์Šต๋‹ˆ๋‹ค.

scene = mlab.gcf().scene
scene.renderer.set(use_depth_peeling=True)

๋น„์Šทํ•œ ๋ฌธ์ œ์— ๋Œ€ํ•œ ์ด ์งˆ๋ฌธ์—์„œ ์ฑ„ํƒํ•œ ..

๋„์›€์„ ์ฃผ์…”์„œ ๊ฐ์‚ฌํ•ฉ๋‹ˆ๋‹ค Matt์™€ Prabhu.

์‹ค์ œ ์‚ฌ์šฉ ์‚ฌ๋ก€์—์„œ๋Š” ์ด 2๊ตฌ ์˜ˆ์ œ๋ณด๋‹ค ๋” ๋„์›€์ด ๋˜๋Š” depth_peeling์„ ์‹œ๋„ํ–ˆ์Šต๋‹ˆ๋‹ค. ๊ทธ๋Ÿฌ๋‚˜ ๊ตฌ๋ฅผ ์žฌ์ •๋ ฌํ•˜๋Š” ๊ฒƒ๊ณผ ๋น„๊ตํ•  ๋•Œ ๊ฐ€์žฅ์ž๋ฆฌ๊ฐ€ ๋œ ๋ณด์ž…๋‹ˆ๋‹ค...์•คํ‹ฐ ์•จ๋ฆฌ์–ด์‹ฑ์ด ์šฉ์–ด์ผ ์ˆ˜ ์žˆ๋‹ค๊ณ  ์ƒ๊ฐํ•ฉ๋‹ˆ๊นŒ?

f=mlab.figure()
f.scene.renderer.use_depth_peeling=1
g0=mlab.points3d(0,0,1,color=(.8,.8,.8),resolution=100,opacity=.99)
g1=mlab.points3d(0,0,0,color=(.8,.8,.8),resolution=100,opacity=.99)  
g0.actor.property.frontface_culling = True
g1.actor.property.frontface_culling = True

image

3D ํ”Œ๋กœํŒ…์˜ ๊ฒฝ์šฐ ํฌ์ธํŠธ ๋ชฉ๋ก๊ณผ ์ƒ‰์ƒ ๋ชฉ๋ก์ด ์žˆ์Šต๋‹ˆ๋‹ค. ๋”ฐ๋ผ์„œ ๊นŠ์ด ํ•„๋ง ๋Œ€์‹  ์ด ํ•จ์ˆ˜๋ฅผ ์‚ฌ์šฉํ•˜์—ฌ ํ”Œ๋กœํŒ…ํ•˜๊ธฐ ์ „์— ํ•ด๋‹น ๋ชฉ๋ก์„ ํ•จ๊ป˜ ์žฌ์ •๋ ฌํ–ˆ์Šต๋‹ˆ๋‹ค.

def orderTransparentRender(cl,c):
    '''Opacity < 1 rendering results in appearance of spheres incorrectly in front of or behind other spheres
    One solution is setting f.scene.renderer.use_depth_peeling=1, however this seemed to result in less anti-aliased edges?
    This function sorts the cluster list cl and color list c together.
    '''
    cz=zip(cl,c)
    cz=sorted(cz,key=lambda x:-1*x[0][2])
    cz=zip(*cz)
    return cz[0],cz[1]

๊ทธ๋ ‡์ง€ ์•Š์œผ๋ฉด ์ •๋ ฌ๋œ ํ˜ธ์ถœ๋งŒ ์žˆ์œผ๋ฉด ๋ฉ๋‹ˆ๋‹ค. ๋‚˜๋Š” ํŒŒ์ด์ฌ ๋ฌธ์„œ์—์„œ ๊ทธ๊ฒƒ์„ ๋ฐฐ์› ์Šต๋‹ˆ๋‹ค: https://wiki.python.org/moin/HowTo/Sorting. ์—ฌ๊ธฐ์—์„œ ํŒŒ์ด์ฌ์˜ zip ์— ๋Œ€ํ•ด ๋ฐฐ์› ์Šต๋‹ˆ๋‹ค. https://stackoverflow.com/questions/1663807/how-can-i-iterate-through-two-lists-in-parallel

์ตœ๊ทผ VTK ๋ฒ„์ „์—์„œ๋Š” ๋‹ค์Œ๊ณผ ๊ฐ™์ด ์ž˜ ์ž‘๋™ํ•ฉ๋‹ˆ๋‹ค.

from mayavi import mlab
f = mlab.figure()
mlab.points3d(0,0,1,color=(.8,.8,.8),resolution=100,opacity=.99)
mlab.points3d(0,0,0,color=(.8,.8,.8),resolution=100,opacity=.99)
f.scene.renderer.use_depth_peeling = True

๋˜ํ•œ ์ž ์žฌ์ ์œผ๋กœ ์‚ฌ์šฉํ•  ์ˆ˜ ์žˆ๋Š” f.scene.renderer.maximum_number_of_peels ๊ฐ€ ์žˆ์Šต๋‹ˆ๋‹ค. ๊ธฐ๋ณธ์ ์œผ๋กœ 4์ด์ง€๋งŒ ๋ Œ๋”๋ง ์†๋„๊ฐ€ ๋Š๋ ค์ง€์ง€๋งŒ ์ œํ•œ ์—†์ด 0์œผ๋กœ ์„ค์ •ํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ์ด๊ฒƒ์œผ๋กœ ๋•œ์งˆ ํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.

์ด ๋ฌธ์ œ๋ฅผ ๋‹ซ์•„๋„ ๋ ๊นŒ์š”? ์ด๊ฒƒ์€ ๋‚ด๊ฐ€ ์ „์— ๋ณธ ๋งŽ์€ ๋ฌธ์ œ๋ฅผ ํ•ด๊ฒฐํ•˜๋Š” ๊ฒƒ ๊ฐ™์Šต๋‹ˆ๋‹ค.

๊ฐ์‚ฌํ•ฉ๋‹ˆ๋‹ค. ๋‚˜๋Š” ์ด๊ฒƒ์„ ๊ฐ€์ง€๊ณ  ์ผํ•  ์ˆ˜ ์žˆ์„ ๊ฒƒ์ด๋‹ค. ์ด ๋ฌธ์ œ๋ฅผ ๋‹ซ์„ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.

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์…ฐํ•„๋“œ ๋Œ€ํ•™๊ต | ์ˆ˜ํ•™๊ณผ ํ†ต๊ณ„ํ•™๋ถ€
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2018๋…„ 8์›” 26์ผ ์ผ์š”์ผ 21:55 Prabhu Ramachandran, [email protected]
์ผ๋‹ค:

์ตœ๊ทผ VTK ๋ฒ„์ „์—์„œ๋Š” ๋‹ค์Œ๊ณผ ๊ฐ™์ด ์ž˜ ์ž‘๋™ํ•ฉ๋‹ˆ๋‹ค.

Mayavi ๊ฐ€์ ธ์˜ค๊ธฐ mlab์—์„œ
f = mlab.Figure()
mlab.points3d(0,0,1,์ƒ‰์ƒ=(.8,.8,.8),ํ•ด์ƒ๋„=100,๋ถˆํˆฌ๋ช…๋„=.99)
mlab.points3d(0,0,0,์ƒ‰์ƒ=(.8,.8,.8),ํ•ด์ƒ๋„=100,๋ถˆํˆฌ๋ช…๋„=.99)
f.scene.renderer.use_depth_peeling = True

๋˜ํ•œ f.scene.renderer.maximum_number_of_peels๊ฐ€ ์žˆ์Šต๋‹ˆ๋‹ค.
์ž ์žฌ์ ์œผ๋กœ ์‚ฌ์šฉํ•ฉ๋‹ˆ๋‹ค. ๊ธฐ๋ณธ๊ฐ’์€ 4์ด์ง€๋งŒ ์•„๋‹ˆ์˜ค์˜ ๊ฒฝ์šฐ 0์œผ๋กœ ์„ค์ •ํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.
์ œํ•œํ•˜์ง€๋งŒ ๋ Œ๋”๋ง ์†๋„๊ฐ€ ๋Š๋ ค์ง‘๋‹ˆ๋‹ค. ์ด๊ฒƒ์œผ๋กœ ๋•œ์งˆ ํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.

์ด ๋ฌธ์ œ๋ฅผ ๋‹ซ์•„๋„ ๋ ๊นŒ์š”? ์ด๊ฒƒ์€ ๋‚ด๊ฐ€ ๊ฐ€์ง„ ๋งŽ์€ ๋ฌธ์ œ๋ฅผ ํ•ด๊ฒฐํ•˜๋Š” ๊ฒƒ ๊ฐ™์Šต๋‹ˆ๋‹ค
์ „์— ๋ณธ.

โ€”
์Šค๋ ˆ๋“œ๋ฅผ ์ž‘์„ฑํ–ˆ๊ธฐ ๋•Œ๋ฌธ์— ์ด ๋ฉ”์‹œ์ง€๋ฅผ ๋ฐ›๋Š” ๊ฒƒ์ž…๋‹ˆ๋‹ค.
์ด ์ด๋ฉ”์ผ์— ์ง์ ‘ ๋‹ต์žฅํ•˜๊ณ  GitHub์—์„œ ํ™•์ธํ•˜์„ธ์š”.
https://github.com/enthought/mayavi/issues/491#issuecomment-416071420 ,
๋˜๋Š” ์Šค๋ ˆ๋“œ ์Œ์†Œ๊ฑฐ
https://github.com/notifications/unsubscribe-auth/AP4RUC8AYAnDAV6-wE88hHw5cPP-x01gks5uUwtGgaJpZM4MT7Rp
.

๊ฐ์‚ฌํ•ฉ๋‹ˆ๋‹ค.

์ด ํŽ˜์ด์ง€๊ฐ€ ๋„์›€์ด ๋˜์—ˆ๋‚˜์š”?
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