Rendering学習日記

白色の地面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。

サンプル例　my_b3ground.py
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#! /usr/bin/env python 



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( 0.3, 0.3, 0.3 ) ] ) ) #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 



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





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() 





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() 





s.materialBegin( plastic3 ) 

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

s.transformBegin( transform().rotationAroundZ( pi/4 )) 



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() 





#白色の地面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", "my_b3ground.tga" ] ) 



s.imagerBegin( saver ) 



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



s.imagerEnd() 



s.render( camera, 300, 300 )

試してみました。

赤色の立方体が原点にあります。
後は3ずつ前後左右に移動させています。
サンプルmy_b7.py
----------------------------------------------------

#! /usr/bin/env python

from lightflowPM import *



from math import * #数学関数モジュールを使うときに書いておく。ここでは円周率piを利用している。pi=3.14159265358979です。



s = scene()



s.lightOn( s.newLight( "point", [ "position", vector3( 3.0, -5.0, 8.0 ), "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

plastic4 = s.newMaterial( "standard",[ "kc", vector3( 1, 1, 0 ) ] ) #黄色

plastic5 = s.newMaterial( "standard",[ "kc", vector3( 1, 0, 1 ) ] ) #紫

plastic6 = s.newMaterial( "standard",[ "kc", vector3( 0, 1, 1 ) ] ) #水色

plastic7 = s.newMaterial( "standard",[ "kc", vector3( 1, 1, 1 ) ] ) #青



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





s.materialBegin( plastic ) #赤の箱は原点にある。

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

s.materialEnd()





s.materialBegin( plastic2 )

s.transformBegin( transform().translation( vector3(-3.0,0,0))) #緑の箱をx方向に-3移動させた。



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



s.transformEnd()

s.materialEnd()





s.materialBegin( plastic3 )

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

s.transformBegin( transform().rotationAroundZ( pi/4 )) 

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()





s.materialBegin( plastic4 )

s.transformBegin( transform().translation( vector3(0,0.75,3.0)))

s.transformBegin( transform().rotationAroundZ( pi/6 )) 

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()



s.materialBegin( plastic5 )

s.transformBegin( transform().translation( vector3(-5.0,4.0,0)))



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



s.transformEnd()

s.materialEnd()



s.materialBegin( plastic6 )

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



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



s.transformEnd()

s.materialEnd()



s.materialBegin( plastic7 )

s.transformBegin( transform().translation( vector3(-0.9,-3.5,0)))

s.transformBegin( transform().rotationAroundZ( -pi/10 )) 

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()



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", "my_b7.tga" ] )



s.imagerBegin( saver )

#カメラは真正面の上の方から見ています。

camera = s.newCamera( "pinhole", [ "eye", vector3( 0, -10, 7 ), "aim", vector3( 0, 0, 0 ),"aa-samples", 3,5 ] ) #ギザギザを減らす、時間かかる。通常は"aa-samples", 2,4



s.imagerEnd()

s.render( camera, 300, 300 )

下記のようにマテリアルを変更追加しました。

check_ground=s.newPattern("check",["color",vector3( 0.1, 1.0, 0.1 ),"scale",0.025]) 



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

以下、サンプル。

#! /usr/bin/env python



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( 0.3, 0.3, 0.3 ) ] ) )



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

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



check_ground=s.newPattern("check",["color",vector3( 0.1, 1.0, 0.1 ),"scale",0.025]) #チェック緑

ground=s.newMaterial( "standard",[ "kc", check_ground,"kc",vector3( 1.0, 1.0, 1.0 ),"ka",check_ground ] ) #チェックkc 1 1 1は白



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()





s.materialBegin( plastic2 )

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

#s.transformBegin( transform().rotationAroundY( pi/7.0 ))

#s.transformBegin( transform().scaling( vector3(2,2,2)))

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.transformEnd()

s.materialEnd()



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", "my_box8.tga" ] )



s.imagerBegin( saver )

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

s.imagerEnd()



s.render( camera, 300, 300 )