Rendering学習日記

Sunflow v0.07.3を試してみた。HDRIのgalileo_probe.hdrはhttps://www.pauldebevec.com/Probes/から。
床と壁はjpgテクスチャです。


シーン記述Sunflow v0.07.3で動きます。

image {

   resolution 640 480

   aa 1 1

   samples 4

   filter gaussian

}



%%shader



shader {

   name "Yellow"

   type diffuse

   diff 1 1 0

}



shader {

   name "shader09"

  type glass

  eta 1.4

  color 1 1 1

}



shader {

   name "shader08"

  type glass

  eta 2.4

  color 1 1 1

}



shader {

   name "Xaxis"

   type diffuse

   diff 1 0 0

}



shader {

   name "Yaxis"

   type diffuse

   diff 0 1 0

}



shader {

   name "Zaxis"

   type diffuse

   diff 0 0 1

}



shader {

  name floor

  type diffuse

  texture "check_red10.jpg"

}



shader {

  name XZ

  type diffuse

  texture "check_b10.jpg"

}



modifier {

   name perlinName

   type perlin

   function 1

   size 1

   scale 3.5

}





%% camera



camera {

   type pinhole

   eye 3 -20 5

   target 0 0 0

   up     0 0 1

   fov    25

   aspect 1.3333

}





%% light sources



light {

   type point

   color { "sRGB nonlinear" 1.000 1.000 1.000 }

   power 1500.0

   p -3 -10 10

}



light {

  type ibl

  image galileo_probe.hdr

  center 0 -1 0

  up 0 0 1

  lock true

  samples 200

}



%% geometry



object {

  shader "shader09"

  /* modifier perlinName */

  type sphere

  name "sp1"

  c 0 0 0

  r 1.4

}





instance {

   name nameOfInstance0

   geometry "sp1"

   transform {

      rotatex 0

      scaleu 1.0

      translate 2.5 0 0

   }

   shader "shader08"

}



object {

   shader "Xaxis"

   transform {

      rotatex 0

      scaleu 0.2

      scale 1 1 30

      rotatey 90

      translate 0 0 0

   }  

   type cylinder

   name Xjiku

}





object {

   shader "Yaxis"

   transform {

      rotatex 90

      scaleu 0.2

      scale 1 50 1

      rotatey 90

      translate 0 0 0

   }  

   type cylinder

   name Yjiku

}





object {

   shader "Zaxis"

   transform {

      scaleu 0.2

      scale 1 1 30

      translate 0 0 0

   }  

   type cylinder

   name Zjiku

}



object {

shader "floor"

transform {

   translate 0 0 -1.5

}

type generic-mesh

name "floormesh"

points 4 

  

   -10.0 -10.0 0

   10.0 -10.0 0

   -10.0 10.0 0

   10.0 10.0 0

triangles 2

1 3 2 1 2 0 

	 normals vertex

0.0 0.0 1.0

0.0 0.0 1.0

0.0 0.0 1.0

0.0 0.0 1.0

	 uvs facevarying

1.0 0.0 

1.0 1.0 

0.0 1.0 

1.0 0.0 

0.0 1.0 

0.0 0.0 

}



instance {

   name nameOfInstance

   geometry "floormesh"

   transform {

      rotatex 90

      scaleu 1.0

      translate 0 3 0

   }

   shader XZ

}

シーンを変更して保存した後、guiのBuild Sceneボタンを押してからレンダリングすると反映されますね。

オブジェクトのインスタンスはできますが、
グループ化できないのでしょうか?

一歩一歩ですね。

image {

   resolution 640 480

   aa 1 1

   samples 4

   filter gaussian

}



gi {

   type ambocc

   bright { "sRGB nonlinear" 0.8 0.8 0.8 } 

   dark { "sRGB nonlinear" 0 0 0 }

   samples 32 

   maxdist 3.0 

}



%%shader



shader {

   name "Yellow"

   type diffuse

   diff 1 1 0

}



shader {

   name "Magenta"

   type diffuse

   diff 1 0 1

}



shader {

   name sfshi.shader

   type shiny

   diff { "sRGB nonlinear" 0.800 0.800 0.800 }

   refl 0.5

}



shader {

  name floor

  type diffuse

  diff 0.9 0.9 0.9

}





%% camera



camera {

   type pinhole

   eye 3 -20 5

   target 0 0 0

   up     0 0 1

   fov    25

   aspect 1.3333

}





%% light sources



light {

   type point

   color { "sRGB nonlinear" 1.000 1.000 1.000 }

   power 1500.0

   p -3 -10 10

}





%% geometry

object {

   shader floor

   type plane

   p 0 0 -1.75

   n 0 0 1

}





object {

  shader "Yellow"

  type sphere

  name sp1

  c -1 0 0

  r 1.75

}



object {

  shader "Magenta"

  type sphere

  name sp2

  c 1 0 0

  r 1.75

}



instance {

   name nameOfInstance

   geometry sp1

   transform {

      rotatex 0

      scaleu 1.0

      translate -1.75 -4 -0.5

   }

   shader sfshi.shader

}



instance {

   name nameOfInstance2

   geometry sp2

   transform {

      rotatex 0

      scaleu 1.0

      translate -0.75 -4 -0.5

   }

   shader sfshi.shader

}

SunflowでのHDRI画像取り扱いとして、魚眼レンズのように円形に収まっている画像イメージは不向き。球体での映り込みは、北極部分が黒くなってしまう。四角いままが良いようです。

image {

   resolution 640 480

   aa 1 1

   samples 4

   filter gaussian

}



gi {

   type ambocc

   bright { "sRGB nonlinear" 0.8 0.8 0.8 } 

   dark { "sRGB nonlinear" 0 0 0 }

   samples 32 

   maxdist 3.0 

}



%%shader



shader {

   name "Yellow"

   type diffuse

   diff 1 1 0

}



shader {

   name "Magenta"

   type diffuse

   diff 1 0 1

}



shader {

   name sfshi.shader

   type shiny

   diff { "sRGB nonlinear" 0.800 0.800 0.800 }

   refl 0.5

}



shader {

   name sfmir.shader

   type mirror

   refl { "sRGB nonlinear" 0.800 0.800 0.800 }

}



shader {

  name floor

  type diffuse

  diff 0.9 0.9 0.9

}





%% camera



camera {

   type pinhole

   eye 3 -20 5

   target 0 0 0

   up     0 0 1

   fov    25

   aspect 1.3333

}





%% light sources



light {

   type point

   color { "sRGB nonlinear" 1.000 1.000 1.000 }

   power 1500.0

   p -3 -10 10

}



light {

  type ibl

  image hdr017.hdr

  center 0 -1 0

  up 0 0 1

  lock true

  samples 200

}





%% geometry

object {

   shader floor

   type plane

   p 0 0 -1.0

   n 0 0 1

}





object {

  shader "Yellow"

  type sphere

  name sp1

  c 0 0 0

  r 1.0

}



instance {

   name nameOfInstance

   geometry sp1

   transform {

      rotatex 0

      scaleu 1.0

      translate -2 0 0

   }

   shader sfshi.shader

}



instance {

   name nameOfInstance2

   geometry sp1

   transform {

      rotatex 0

      scaleu 1.0

      translate -4 0 0

   }

   shader sfshi.shader

}



instance {

   name nameOfInstance3

   geometry sp1

   transform {

      rotatex 0

      scaleu 1.0

      translate 2 0 0

   }

   shader sfshi.shader

}



instance {

   name nameOfInstance4

   geometry sp1

   transform {

      rotatex 0

      scaleu 1.0

      translate 4 0 0

   }

   shader sfshi.shader

}



instance {

   name nameOfInstance5

   geometry sp1

   transform {

      rotatex 0

      scaleu 1.0

      translate -2 8 0

   }

   shader sfmir.shader

}



instance {

   name nameOfInstance6

   geometry sp1

   transform {

      rotatex 0

      scaleu 1.0

      translate -4 8 0

   }

   shader sfmir.shader

}



instance {

   name nameOfInstance7

   geometry sp1

   transform {

      rotatex 0

      scaleu 1.0

      translate 2 8 0

   }

   shader sfmir.shader

}



instance {

   name nameOfInstance8

   geometry sp1

   transform {

      rotatex 0

      scaleu 1.0

      translate 4 8 0

   }

   shader sfmir.shader

}