Rendering学習日記

• Lightflow(Lightflow python script)
• 2010.08.16 Monday

Lightflowの使い方として、微妙な質感を調整することができる。
基本となる反射色kcをそれぞれ、赤、緑、青の色に設定した。

#! /usr/bin/env python 

#sphere01.py



from lightflowPM import * 

from math import * 



s = scene()



s.lightOn( s.newLight( "point", [ "position", vector3( 5.0, -5.0, 4.0 ), "color", vector3( 300.0, 300.0, 300.0 ) ] ) ) 



s.lightOn( s.newLight( "ambient", [ "color", vector3( 0.2, 0.2, 0.2 ) ] ) ) #環境光を加える。 



plastic = s.newMaterial( "standard",[ "kc", vector3( 1, 0, 0 ) ] ) #赤 



plastic2 = s.newMaterial( "standard",[ "kc", vector3( 0, 1, 0 )] ) #緑 



plastic3 = s.newMaterial( "standard",[ "kc", vector3( 0, 0, 1 )] ) #青 



check_ground=s.newPattern("check",["color",vector3( 0.2, 0.4, 0.6 ),"scale",0.025]) 



ground=s.newMaterial( "standard",[ "kc", check_ground,"kc",vector3( 1.0, 1.0, 1.0 ),"ka",check_ground ] ) 



#ground=s.newMaterial( "standard",[ "kc", vector3( 1, 1, 1 ) ] ) #白 





s.materialBegin( plastic ) 

s.addObject( s.newObject( "sphere", [ "radius",1.4] ) ) 

s.materialEnd() 





s.materialBegin( plastic2 ) 

s.transformBegin( transform().translation( vector3(-4.0,0,0))) 



s.addObject( s.newObject( "sphere", [ "radius",1.4] ) ) 



s.transformEnd() 

s.materialEnd() 





s.materialBegin( plastic3 ) 

s.transformBegin( transform().translation( vector3(4.0,0,0))) 



s.addObject( s.newObject( "sphere", [ "radius",1.4] ) )  



s.transformEnd() 

s.materialEnd() 





#地面groundをpatchで作成しています。高さ(z軸)を-1.4にしてぴったり球とあわせています。 

s.materialBegin( ground ) 



s.addObject( s.newObject( "patch", [ "points",vector3( -50, -50, -1.4 ),vector3( -50, 50, -1.4 ),vector3( 50, -50, -1.4 ),vector3( 50, 50, -1.4 )] ) ) 



s.materialEnd() 



saver = s.newImager( "tga-saver", [ "file", "sphere01.tga" ] ) 



s.imagerBegin( saver ) 



camera = s.newCamera( "pinhole", [ "eye", vector3( 0, -6, 5 ), "aim", vector3( 0, 0, 0 ) ] ) 



s.imagerEnd() 



s.render( camera, 512, 300 )

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• Lightflow(Lightflow python script)
• 2010.08.16 Monday

"kr",vector3 | pattern kr [レイトレース反射色]
レイトレース反射色です。映り込みをします。
kr 0.2にしました。

#! /usr/bin/env python 

#sphere02.py

from lightflowPM import * 

from math import * 



s = scene() 



s.lightOn( s.newLight( "point", [ "position", vector3( 5.0, -5.0, 4.0 ), "color", vector3( 300.0, 300.0, 300.0 ) ] ) ) 



s.lightOn( s.newLight( "ambient", [ "color", vector3( 0.2, 0.2, 0.2 ) ] ) ) #環境光を加える。 



plastic = s.newMaterial( "standard",[ "kc", vector3( 1, 0, 0 ),"kr",vector3(0.2,0.2,0.2) ] ) #赤, レイトレース反射色kr追加



plastic2 = s.newMaterial( "standard",[ "kc", vector3( 0, 1, 0 ),"kr",vector3(0.2,0.2,0.2) ] ) #緑, レイトレース反射色kr追加



plastic3 = s.newMaterial( "standard",[ "kc", vector3( 0, 0, 1 ),"kr",vector3(0.2,0.2,0.2) ] ) #青, レイトレース反射色kr追加



check_ground=s.newPattern("check",["color",vector3( 0.2, 0.4, 0.6 ),"scale",0.025]) 



ground=s.newMaterial( "standard",[ "kc", check_ground,"kc",vector3( 1.0, 1.0, 1.0 ),"ka",check_ground ] ) 



#ground=s.newMaterial( "standard",[ "kc", vector3( 1, 1, 1 ) ] ) #白 





s.materialBegin( plastic ) 

s.addObject( s.newObject( "sphere", [ "radius",1.4] ) ) 

s.materialEnd() 





s.materialBegin( plastic2 ) 

s.transformBegin( transform().translation( vector3(-4.0,0,0))) 



s.addObject( s.newObject( "sphere", [ "radius",1.4] ) ) 



s.transformEnd() 

s.materialEnd() 





s.materialBegin( plastic3 ) 

s.transformBegin( transform().translation( vector3(4.0,0,0))) 



s.addObject( s.newObject( "sphere", [ "radius",1.4] ) )  



s.transformEnd() 

s.materialEnd() 





#地面groundをpatchで作成しています。高さ(z軸)を-1.4にしてぴったり球とあわせています。 

s.materialBegin( ground ) 



s.addObject( s.newObject( "patch", [ "points",vector3( -50, -50, -1.4 ),vector3( -50, 50, -1.4 ),vector3( 50, -50, -1.4 ),vector3( 50, 50, -1.4 )] ) ) 



s.materialEnd() 



saver = s.newImager( "tga-saver", [ "file", "sphere02.tga" ] ) 



s.imagerBegin( saver ) 



camera = s.newCamera( "pinhole", [ "eye", vector3( 0, -6, 5 ), "aim", vector3( 0, 0, 0 ) ] ) 



s.imagerEnd() 



s.render( camera, 512, 300 )

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• Lightflow(Lightflow python script)
• 2010.08.16 Monday

レイトレース反射色krを0.95にしてみた。

plastic = s.newMaterial( "standard",[ "kc", vector3( 1, 0, 0 ),"kr",vector3(0.95,0.95,0.95) ] ) #赤

plastic2 = s.newMaterial( "standard",[ "kc", vector3( 0, 1, 0 ),"kr",vector3(0.95,0.95,0.95) ] ) #緑

plastic3 = s.newMaterial( "standard",[ "kc", vector3( 0, 0, 1 ),"kr",vector3(0.95,0.95,0.95) ] ) #青

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• Lightflow(Lightflow python script)
• 2010.08.16 Monday

"kd",float | pattern kd [拡散量]0.01を追加しておき、レイトレース反射色krを右の球から0.1、0.5、0.95に設定した。

・反射色kc 0.3
plastic = s.newMaterial( "standard",[ "kc", vector3( 0.3, 0.3, 0.3 ),"kd", 0.01
,"kr",vector3(0.5,0.5,0.5) ] )

plastic2 = s.newMaterial( "standard",[ "kc", vector3( 0.3, 0.3, 0.3 ),"kd", 0.01
,"kr",vector3(0.95,0.95,0.95) ] )

plastic3 = s.newMaterial( "standard",[ "kc", vector3( 0.3, 0.3, 0.3 ),"kd", 0.01
,"kr",vector3(0.1,0.1,0.1) ] )


・反射色kc 0.5
plastic = s.newMaterial( "standard",[ "kc", vector3( 0.5, 0.5, 0.5 ),"kd", 0.01
,"kr",vector3(0.5,0.5,0.5) ] )

plastic2 = s.newMaterial( "standard",[ "kc", vector3( 0.5, 0.5, 0.5 ),"kd", 0.01
,"kr",vector3(0.95,0.95,0.95) ] )

plastic3 = s.newMaterial( "standard",[ "kc", vector3( 0.5, 0.5, 0.5 ),"kd", 0.01
,"kr",vector3(0.1,0.1,0.1) ] )


・反射色kc 0.95
plastic = s.newMaterial( "standard",[ "kc", vector3( 0.95, 0.95, 0.95 ),"kd", 0.01
,"kr",vector3(0.5,0.5,0.5) ] )

plastic2 = s.newMaterial( "standard",[ "kc", vector3( 0.95, 0.95, 0.95 ),"kd", 0.01
,"kr",vector3(0.95,0.95,0.95) ] )

plastic3 = s.newMaterial( "standard",[ "kc", vector3( 0.95, 0.95, 0.95 ),"kd", 0.01
,"kr",vector3(0.1,0.1,0.1) ] )

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• Lightflow(Lightflow python script)
• 2010.08.16 Monday

"kd",float | pattern kd [拡散量]
どのくらい光が拡散するかを決めます。1に近づくほど拡散します。透明な材質を作りたい場合はおもいきり下げたほうが良いでしょう。通常kdを記入しなければ(省略した場合)、"1.0"になっています(デフォルト)。ちょっと抑えてあげたほうがよいかもしれません。

plastic = s.newMaterial( "standard",[ "kc", vector3( 0.5, 0.5, 0.5 ),"kd", 0.5 ] ) #真ん中の球

plastic2 = s.newMaterial( "standard",[ "kc", vector3( 0.5, 0.5, 0.5 ),"kd", 0.01 ] ) #左の球

plastic3 = s.newMaterial( "standard",[ "kc", vector3( 0.5, 0.5, 0.5 ) ] ) #右の球,"kd", 1.0と同じです。

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• Lightflow(Lightflow python script)
• 2010.08.16 Monday

拡散量がたとえ同じであっても、光源の位置で表情は変わりますね。
kdを0.33としてみた。
plastic = s.newMaterial( "standard",[ "kc", vector3( 0.6, 0.6, 0.6 ),"kd", 0.33 ] )

plastic2 = s.newMaterial( "standard",[ "kc", vector3( 0.6, 0.6, 0.6 ),"kd", 0.33 ] )

plastic3 = s.newMaterial( "standard",[ "kc", vector3( 0.6, 0.6, 0.6 ),"kd", 0.33 ] )

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• Lightflow(Lightflow python script)
• 2010.08.17 Tuesday

POV-Rayではcolor.incというカラーサンプルが定義されている。Lightflowで似たようなことができないか使い方を検討やってみた。
まず、Pythonで読めるように、ファイルをEditorを使って整えた。
ファイル名はcolorinc.py
以下のように記述した。

#! /usr/bin/env python

#colorinc.py

from lightflowPM import *



Blue=vector3(0, 0.6, 1)

Red=vector3(1, 0, 0)

Green=vector3(0, 1, 0.5)

Violet=vector3(1, 0.2, 1)

Orange=vector3(1, 0.6, 0.2)

Yellow  =vector3(1,1,0)

Cyan    =vector3(0, 1, 1)

Magenta =vector3(1, 0, 1)

White   =vector3(1, 1, 1)

Black   =vector3(0, 0, 0)



DimGray=vector3(0.329412,0.329412,0.329412)

Gray=vector3(0.752941,0.752941,0.752941)

LightGray=vector3(0.658824,0.658824,0.658824)

VLightGray=vector3(0.80,0.80,0.80)



Aquamarine=vector3(0.439216,0.858824,0.576471)

BlueViolet=vector3(0.62352,0.372549,0.623529)

Brown=vector3(0.647059,0.164706,0.164706)

CadetBlue=vector3(0.372549,0.623529,0.623529)

Coral=vector3(1.0,0.498039,0.0)

CornflowerBlue=vector3(0.258824,0.258824,0.435294)

DarkGreen=vector3(0.184314,0.309804,0.184314)

DarkOliveGreen=vector3(0.309804,0.309804,0.184314)

DarkOrchid=vector3(0.6,0.196078,0.8)

DarkSlateBlue=vector3(0.119608,0.137255,0.556863)

DarkSlateGray=vector3(0.184314,0.309804,0.309804)

DarkTurquoise=vector3(0.439216,0.576471,0.858824)

Firebrick=vector3(0.556863,0.137255,0.137255)

ForestGreen=vector3(0.137255,0.556863,0.137255)

Gold=vector3(0.8,0.498039,0.196078)

Goldenrod=vector3(0.858824,0.858824,0.439216)

GreenYellow=vector3(0.576471,0.858824,0.439216)

IndianRed=vector3(0.309804,0.184314,0.184314)

Khaki=vector3(0.623529,0.623529,0.372549)

LightBlue=vector3(0.74902,0.847059,0.847059)

LightSteelBlue=vector3(0.560784,0.560784,0.737255)

LimeGreen=vector3(0.196078,0.8,0.196078)

Maroon=vector3(0.556863,0.137255,0.419608)

MediumAquamarine=vector3(0.196078,0.8,0.6)

MediumBlue=vector3(0.196078,0.196078,0.8)

MediumForestGreen=vector3(0.419608,0.556863,0.137255)

MediumGoldenrod=vector3(0.917647,0.917647,0.678431)

MediumOrchid=vector3(0.576471,0.439216,0.858824)

MediumSeaGreen=vector3(0.258824,0.435294,0.258824)

MediumTurquoise=vector3(0.439216,0.858824,0.858824)

MediumVioletRed=vector3(0.858824,0.439216,0.576471)

MidnightBlue=vector3(0.184314,0.184314,0.309804)

Navy=vector3(0.137255,0.137255,0.556863)

NavyBlue=vector3(0.137255,0.137255,0.556863)

Orange=vector3(1,0.5,0.0)

Orchid=vector3(0.858824,0.439216,0.858824)

PaleGreen=vector3(0.560784,0.737255,0.560784)

Pink=vector3(0.737255,0.560784,0.560784)

Plum=vector3(0.917647,0.678431,0.917647)

Salmon=vector3(0.435294,0.258824,0.258824)

SeaGreen=vector3(0.137255,0.556863,0.419608)

Sienna=vector3(0.556863,0.419608,0.137255)

SkyBlue=vector3(0.196078,0.6,0.8)



SteelBlue=vector3(0.137255,0.419608,0.556863)

Tan=vector3(0.858824,0.576471,0.439216)

Thistle=vector3(0.847059,0.74902,0.847059)

Turquoise=vector3(0.678431,0.917647,0.917647)

Violet=vector3(0.309804,0.184314,0.309804)

VioletRed=vector3(0.8,0.196078,0.6)

Wheat=vector3(0.847059,0.847059,0.74902)

YellowGreen=vector3(0.6,0.8,0.196078)

SummerSky=vector3(0.22,0.69,0.87)

RichBlue=vector3(0.35,0.35,0.67)

Brass=vector3( 0.71,0.65,0.26)

Copper=vector3(0.72,0.45,0.20)

Bronze=vector3(0.55,0.47,0.14)

Bronze2=vector3(0.65,0.49,0.24)

Silver=vector3(0.90,0.91,0.98)

BrightGold=vector3(0.85,0.85,0.10)

OldGold=vector3( 0.81,0.71,0.23)

Feldspar=vector3(0.82,0.57,0.46)

Quartz=vector3(0.85,0.85,0.95)

NeonPink=vector3(1.00,0.43,0.78)

DarkPurple=vector3(0.53,0.12,0.47)

NeonBlue=vector3(0.30,0.30,1.00)

CoolCopper=vector3(0.85,0.53,0.10)

MandarinOrange=vector3(0.89,0.47,0.20)

LightWood=vector3(0.91,0.76,0.65)

MediumWood=vector3(0.65,0.50,0.39)

DarkWood=vector3(0.52,0.37,0.26)

SpicyPink=vector3(1.00,0.11,0.68)

SemiSweetChoc=vector3(0.42,0.26,0.15)

BakersChoc=vector3(0.36,0.20,0.09)

Flesh=vector3(0.96,0.80,0.69)

NewTan=vector3(0.92,0.78,0.62)

NewMidnightBlue=vector3(0.00,0.00,0.61)

VeryDarkBrown=vector3(0.35,0.16,0.14)

DarkBrown=vector3(0.36,0.25,0.20)

DarkTan=vector3(0.59,0.41,0.31)

GreenCopper=vector3(0.32,0.49,0.46)

DkGreenCopper=vector3(0.29,0.46,0.43)

DustyRose=vector3(0.52,0.39,0.39)

HuntersGreen=vector3(0.13,0.37,0.31)

Scarlet=vector3(0.55,0.09,0.09)

Med_Purple=vector3( 0.73,0.16,0.96)

Light_Purple=vector3(0.87,0.58,0.98)

Very_Light_Purple=vector3(0.94,0.81,0.99)

後はLightflowでシーン記述したファイルの中で実際に呼び出すために、
import colorincと記述しておき、色呼び出しの際は、
colorinc.DimGray
colorinc.BlueViolet
と記述してあげると、指定の色が呼び出される。
以下、サンプルを参考にしてください。

#! /usr/bin/env python 

#box_colors6.py



from lightflowPM import * 

from math import * 



import colorinc



s = scene() 



s.lightOn( s.newLight( "point", [ "position", vector3( 5.0, -5.0, 4.0 ), "color", vector3( 300.0, 300.0, 300.0 ) ] ) ) 



s.lightOn( s.newLight( "ambient", [ "color", vector3( 0.3, 0.3, 0.3 ) ] ) ) #環境光を加える。 



plastic = s.newMaterial( "standard",[ "kc", colorinc.DarkTurquoise,"kd",0.66 ] ) #



plastic2 = s.newMaterial( "standard",[ "kc", colorinc.Firebrick,"kd",0.66 ] ) #



plastic3 = s.newMaterial( "standard",[ "kc", colorinc.ForestGreen,"kd",0.66 ] ) #



plastic4 = s.newMaterial( "standard",[ "kc", colorinc.Gold,"kd",0.66 ] ) #



plastic5 = s.newMaterial( "standard",[ "kc", colorinc.Goldenrod,"kd",0.66 ] ) #



plastic6 = s.newMaterial( "standard",[ "kc", colorinc.GreenYellow,"kd",0.66 ] ) #





check_ground=s.newPattern("check",["color",vector3( 0.2, 0.4, 0.6 ),"scale",0.025]) 



ground=s.newMaterial( "standard",[ "kc", check_ground,"kc",vector3( 1.0, 1.0, 1.0 ),"ka",check_ground ] ) #チェック青と白



#DarkTurquoiseのbox

s.materialBegin( plastic ) 

s.addObject( s.newObject( "box", [ "position",vector3( -1.0, -1.0, -1.0 ),vector3( 1.0, 1.0, 1.0 )] ) ) 

s.materialEnd() 



#Firebrickのbox

s.materialBegin( plastic2 ) 

s.transformBegin( transform().translation( vector3(-3.0,0,0))) 



s.addObject( s.newObject( "box", [ "position",vector3( -1.0, -1.0, -1.0 ),vector3( 1.0, 1.0, 1.0 )] ) ) 



s.transformEnd() 

s.materialEnd() 



#ForestGreenのbox z軸中心に45度回転

s.materialBegin( plastic3 ) 

s.transformBegin( transform().translation( vector3(3.0,0,0))) 

s.transformBegin( transform().rotationAroundZ( pi*45.0/180 )) 



s.addObject( s.newObject( "box", [ "position",vector3( -1.0, -1.0, -1.0 ),vector3( 1.0, 1.0, 1.0 )] ) ) 



s.transformEnd() 

s.transformEnd() 

s.materialEnd() 





#Goldのbox

s.materialBegin( plastic4 ) 

s.transformBegin( transform().translation( vector3(-3.0,-3,0))) 



s.addObject( s.newObject( "box", [ "position",vector3( -1.0, -1.0, -1.0 ),vector3( 1.0, 1.0, 1.0 )] ) ) 



s.transformEnd()

s.materialEnd()





#Goldenrodのbox

s.materialBegin( plastic5 ) 

s.transformBegin( transform().translation( vector3(0,-3,0))) 



s.addObject( s.newObject( "box", [ "position",vector3( -1.0, -1.0, -1.0 ),vector3( 1.0, 1.0, 1.0 )] ) ) 



s.transformEnd() 

s.materialEnd()



#GreenYellowのbox

s.materialBegin( plastic6 ) 

s.transformBegin( transform().translation( vector3(3.0,-3,0))) 



s.addObject( s.newObject( "box", [ "position",vector3( -1.0, -1.0, -1.0 ),vector3( 1.0, 1.0, 1.0 )] ) ) 



s.transformEnd() 

s.materialEnd()







#check模様の地面groundをpatchで作成しています。高さ(z軸)を-1.0にしてぴったり立方体とあわせています。 

s.materialBegin( ground ) 



s.addObject( s.newObject( "patch", [ "points",vector3( -50, -50, -1.0 ),vector3( -50, 50, -1.0 ),vector3( 50, -50, -1.0 ),vector3( 50, 50, -1.0 )] ) ) 



s.materialEnd() 



saver = s.newImager( "tga-saver", [ "file", "box_colors6.tga" ] ) 



s.imagerBegin( saver ) 



camera = s.newCamera( "pinhole", [ "eye", vector3( 0, -10, 5 ), "aim", vector3( 0, 0, 0 ) ] ) 



s.imagerEnd() 



s.render( camera, 512, 300 )

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• Lightflow(Lightflow python script)
• 2010.08.18 Wednesday

Lightflowには基本図形としてドーナツ(torus)を持っていない。RenderManやcgkitではtorusを呼び出すことができるので、関数を作ってLightflowでもできると思います。これは後ほど・・・。
ここではメタセコイアmetasequoiaで形状ドーナツ型を生成し、metalightで原点位置に配置し、カメラ位置、ライト位置を決めてPython形式を出力した。

今回作ったドーナツは相当小さいものを作ったので、半径や位置などの数字が小さくなっている。


ドーナツを拡大縮小し、45度回転させ、半径0.1の演習上に18個配置した。

#リストを準備してオブジェクト名を格納し、定義した位置をs.addObject

a=[]

deg=0

r=0.1

for i in range(18):

     obj_="Obj"+str(i)

     a.append(obj_)

     s.materialBegin( Obj1_Mat0 )

     s.transformBegin( transform().translation( vector3( r*sin(pi*deg/180.0),r*cos(pi*deg/180.0), 0 ) ) )

     s.transformBegin( transform().rotationAroundZ( pi*45/180.0 )) 

     s.transformBegin( transform().scaling( vector3(1.2,0.8,1.0)))

     a[i] = s.newObject( "mesh", [ "file" , "torus1.lfm" , 0 ]  )

     s.transformEnd()

     s.transformEnd()

     s.transformEnd()

     s.materialEnd()

	

     s.addObject( a[i] )

     

     deg=deg+20

続いて円周上でZ中心に20度ずつ回転させていった。

a=[]

deg=0

r=0.1

for i in range(18):

     obj_="Obj"+str(i)

     a.append(obj_)

     s.materialBegin( Obj1_Mat0 )

     #s.transformBegin( transform().rotationAroundY( pi*deg/180.0 )) 

     s.transformBegin( transform().translation( vector3( r*sin(pi*deg/180.0),r*cos(pi*deg/180.0), 0 ) ) )

     s.transformBegin( transform().rotationAroundZ( pi*-1*deg/180.0 )) 

     s.transformBegin( transform().scaling( vector3(1.2,0.8,1.0)))

     a[i] = s.newObject( "mesh", [ "file" , "torus1.lfm" , 0 ]  )

     s.transformEnd()

     s.transformEnd()

     s.transformEnd()

     #s.transformEnd()

     s.materialEnd()

     

     s.addObject( a[i] )

     

     deg=deg+20

次にX軸中心に90度回転させた。

>

a=[]

deg=0

r=0.1

for i in range(18):

     obj_="Obj"+str(i)

     a.append(obj_)

     s.materialBegin( Obj1_Mat0 )

     #s.transformBegin( transform().rotationAroundY( pi*deg/180.0 )) 

     s.transformBegin( transform().translation( vector3( r*sin(pi*deg/180.0),r*cos(pi*deg/180.0), 0 ) ) )

     s.transformBegin( transform().rotationAroundZ( pi*-1*deg/180.0 ))

     s.transformBegin( transform().rotationAroundX( pi*90/180.0 ))  

     s.transformBegin( transform().scaling( vector3(1.2,0.8,1.0)))

     a[i] = s.newObject( "mesh", [ "file" , "torus1.lfm" , 0 ]  )

     s.transformEnd()

     s.transformEnd()

     s.transformEnd()

     s.transformEnd()

     #s.transformEnd()

     s.materialEnd()

	

     s.addObject( a[i] )

	

     deg=deg+20

以上の配置の仕方をまとめて鎖のリングを作成した。

a=[]

deg=0

r=0.1

for i in range(18):

     obj_="Obj"+str(i)

     a.append(obj_)

     s.materialBegin( Obj1_Mat0 )

     #s.transformBegin( transform().rotationAroundY( pi*deg/180.0 )) 

     s.transformBegin( transform().translation( vector3( r*sin(pi*deg/180.0),r*cos(pi*deg/180.0), 0 ) ) )

     s.transformBegin( transform().rotationAroundZ( pi*-1*deg/180.0 ))

     s.transformBegin( transform().rotationAroundX( pi*90/180.0 ))

     s.transformBegin( transform().scaling( vector3(1.4,0.85,1.0)))

     a[i] = s.newObject( "mesh", [ "file" , "torus1.lfm" , 0 ]  )

     s.transformEnd()

     s.transformEnd()

     s.transformEnd()

     s.transformEnd()

     #s.transformEnd()

     s.materialEnd()

	

     s.addObject( a[i] )

	

     deg=deg+20

	

b=[]

deg2=10

for k in range(18):

     obj2_="Obj2"+str(k)

     b.append(obj2_)

     s.materialBegin( Obj1_Mat2 )

     #s.transformBegin( transform().rotationAroundY( pi*deg/180.0 )) 

     s.transformBegin( transform().translation( vector3( r*sin(pi*deg2/180.0),r*cos(pi*deg2/180.0), 0 ) ) )

     s.transformBegin( transform().rotationAroundZ( pi*-1*deg2/180.0 ))

     s.transformBegin( transform().scaling( vector3(1.6,0.85,1.0)))

     b[k] = s.newObject( "mesh", [ "file" , "torus1.lfm" , 0 ]  )

     s.transformEnd()

     s.transformEnd()

     s.transformEnd()

     #s.transformEnd()

     s.materialEnd()

	

     s.addObject( b[k] )

	

     deg2=deg2+20

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• Lightflow(Lightflow python script)
• 2010.08.20 Friday

Lightflowのcylinderには、ふたがしてない。RenderManで用意されているプリミティブと同じだ。X軸中心に30度傾ける。
s.transformBegin( transform().rotationAroundX( pi*30.0/180 )
Pythonで除算する時は、小数点をつけておかないと正しく計算しないから注意する必要がある。

#! /usr/bin/env python

from lightflowPM import *

from math import * 



s = scene()



s.lightOn( s.newLight( "point", [ "position", vector3( 5.0, -5.0, 3.0 ), "color", vector3( 300.0, 300.0, 300.0 ) ] ) )



s.lightOn( s.newLight( "point", [ "position", vector3( -5.0, -5.0, 3.0 ), "color", vector3( 300.0, 300.0, 300.0 ) ] ) )



s.lightOn( s.newLight( "point", [ "position", vector3( 5.0, -5.0, -3.0 ), "color", vector3( 300.0, 300.0, 300.0 ) ] ) )



plastic = s.newMaterial( "standard", [ "kc", vector3( 0.096, 0.252, 0.504 ), "kd", 0.5, "km", 0.1 ] )





s.materialBegin( plastic )

s.transformBegin( transform().rotationAroundX( pi*30.0/180 ) )



s.addObject( s.newObject( "cylinder", [ "radius", 1.0 ,"height",2.4] ) )



s.transformEnd()

s.materialEnd()





saver = s.newImager( "tga-saver", [ "file", "bool01.tga" ] )



s.imagerBegin( saver )



camera = s.newCamera( "pinhole", [ "eye", vector3( 0, -4, 3 ), 

						"aim", vector3( 0, 1, 0 ),

						"aa-samples", 2,5

						 ] )



s.imagerEnd()



s.render( camera, 300, 300 )

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• Lightflow(Lightflow python script)
• 2010.08.20 Friday

disc,cylinderを使って、ふたをした円柱を原点で作成する。
capをしてグループ化してみた。

hole = s.newObject( "boundary", [ "surfaces", cyl, cap1, cap2 ] )

これでひとつにまとめ、レンダリングで画面に表示するためには、

s.addObject(hole)を行う。

サンプルファイルは次のようになる。

#! /usr/bin/env python

from lightflowPM import *

from math import * 



s = scene()



s.lightOn( s.newLight( "point", [ "position", vector3( 5.0, -5.0, 3.0 ), "color", vector3( 300.0, 300.0, 300.0 ) ] ) )



s.lightOn( s.newLight( "point", [ "position", vector3( -5.0, -5.0, 3.0 ), "color", vector3( 300.0, 300.0, 300.0 ) ] ) )



s.lightOn( s.newLight( "point", [ "position", vector3( 5.0, -5.0, -3.0 ), "color", vector3( 300.0, 300.0, 300.0 ) ] ) )



plastic = s.newMaterial( "standard", [ "kc", vector3( 0.096, 0.252, 0.504 ), "kd", 0.5, "km", 0.1 ] )



s.materialBegin( plastic )

s.transformBegin( transform().rotationAroundX( pi*15.0/180 ) )

s.transformBegin( transform().translation( vector3( 0, 0, 2.4 ) ) )

cap1=s.newObject( "disc", [ "radius", 1.0 ] )

s.transformEnd()



s.transformBegin( transform().translation( vector3( 0, 0, 0 ) ) )

cap2=s.newObject( "disc", [ "radius", 1.0 ] )

s.transformEnd()





cyl=s.newObject( "cylinder", [ "radius", 1.0 ,"height",2.4] )

s.transformEnd()



hole = s.newObject( "boundary", [ "surfaces", cyl, cap1, cap2 ] )



s.materialEnd()



s.addObject(hole)





saver = s.newImager( "tga-saver", [ "file", "bool02.tga" ] )



s.imagerBegin( saver )



camera = s.newCamera( "pinhole", [ "eye", vector3( 0, -4, 3 ), 

									"aim", vector3( 0, 1, 0 ),

									"aa-samples", 2,5

									 ] )



s.imagerEnd()



s.render( camera, 300, 300 )

X軸中心に角度を-60度傾けてみた。


X軸中心に角度を30度傾けてみた。

ありがとうございます。

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