Rendering学習日記

Essential RenderManを参考にguile-rmanでやってみた。
Points、Polygon、Patchの表記がわからないので、Diskを地面にしました。

１　影なし

noshadow.scmで保存

#!/usr/bin/guile -s

!#



(use-modules (rman rispec))

(use-modules (rman utilities))



(RiBegin "noshadow.rib")

  (RiDisplay "npshadow.tif" "file" "rgb")

  (RiFormat 640 480 1)

  (RiProjection "perspective" '("fov" 30))

  (RiTranslate 0 0 6)

  (RiRotate -48 1 0 0)

  (RiRotate -20 0 1 0)

  (RiPixelFilter RiBoxFilter 1 1)

  (RiWorldBegin)

      (RiLightSource "ambientlight" (list "intensity" 0.1))

      (RiLightSource "spotlight" (list "intensity" 10 "from" (Point 0 4 0)

                "to" (Point 0 0 0 )

                "coneangle" 0.45

                "conedeltaangle" 0.05))

      (RiAttributeBegin)

      (RiColor (Color 1.0 0 0))

      (RiSurface "plastic")

      (RiTransformBegin)

      (RiSphere 1 -1 1 360)

      (RiTransformEnd)

      (RiTransformBegin)

      (RiColor (Color 0 1 0))

      (RiSurface "matte")

      (RiRotate -90 1 0 0)

      (RiDisk -0.5 5 360)

      ;;(RiPatch "bilinear" (list "P" #f32(-5 -1 -5 5 -1 -5 -5 -1 5 5 -1 5)))

      (RiTransformEnd)

      (RiAttributeEnd)

  (RiWorldEnd)

(RiEnd)

２　shadowmapを生成する

makeshadow.scmで保存

#!/usr/bin/guile -s

!#



(use-modules (rman rispec))

(use-modules (rman utilities))



(RiBegin "makeshadow.rib")

(RiHider "hidden" (list "string depthfilter" "midpoint"))

  (RiDisplay "zbuffer.zfile" "zfile" "z")

  (RiFormat 512 512 1)

  (RiProjection "perspective" '("fov" 40))

  (RiTranslate 0 0 4) 

  (RiRotate -90 1 0 0)

  (RiWorldBegin)

      (RiAttributeBegin)

      (RiColor (Color 1.0 0 0))



      (RiTransformBegin)

      (RiSphere 1 -1 1 360)

      (RiTransformEnd)

      (RiTransformBegin)

      (RiColor (Color 0 1 0))



      (RiRotate -90 1 0 0)



      (RiDisk -0.5 5 360)

      (RiTransformEnd)

      (RiAttributeEnd)

  (RiWorldEnd)

(RiMakeShadow "zbuffer.zfile" "map.shad")

(RiEnd)

３　影つき

withshadow.scmで保存

#!/usr/bin/guile -s

!#



(use-modules (rman rispec))

(use-modules (rman utilities))



(RiBegin "withshadow.rib")

(RiHider "hidden" (list "string depthfilter" "midpoint"))

  (RiDisplay "witshadow.tif" "file" "rgb")

  (RiFormat 640 480 1)

  (RiProjection "perspective" '("fov" 30))

  (RiTranslate 0 0 6)

  (RiRotate -48 1 0 0)

  (RiRotate -20 0 1 0)

  (RiPixelFilter RiBoxFilter 1 1)

  (RiWorldBegin)

      (RiLightSource "ambientlight" (list "intensity" 0.1))

      (RiLightSource "shadowspot" (list "string shadowname" "map.shad" "intensity" 10 

                "from" (Point 0 4 0)

                "to" (Point 0 0 0 )

                "coneangle" 0.45

                "conedeltaangle" 0.05))

      (RiAttributeBegin)

      (RiColor (Color 1.0 0 0))

      (RiSurface "plastic")

      (RiTransformBegin)

      (RiSphere 1 -1 1 360)

      (RiTransformEnd)

      (RiTransformBegin)

      (RiColor (Color 0 1 0))

      (RiSurface "matte")

      (RiRotate -90 1 0 0)

      (RiDisk -0.5 5 360)

      (RiTransformEnd)

      (RiAttributeEnd)

  (RiWorldEnd)

(RiEnd)

CentOS6.3 64bitで動作確認。
CentOS X86_64でswig2.0.11、guile2.0.9、guile-lib0.2.2をmake install、guile-rmanもmake installしaqsis1.6でレンダリングできました。rib出力はRifGetDeclarationで不可。
ありがとうございます。

guile-rmanでのRiPolygonの表記がわかりました。RiPointsもわかりましたが"width"設定がわからないところ。

以下はサンプルです。points.scmで保存しました。

#!/usr/bin/guile -s

!#



(use-modules (rman rispec))

(use-modules (rman utilities))



(RiBegin "points.rib")

  (RiDisplay "points.tif" "file" "rgb")

  (RiFormat 640 480 1)

  (RiProjection "perspective" '("fov" 30))

  (RiTranslate 0 0 3)

;  (RiProgressHandler progress)

  (RiPixelFilter RiBoxFilter 1 1)

  (RiWorldBegin)

      (RiLightSource "ambientlight" (list "intensity" 0.2))

      (RiLightSource "distantlight" (list "intensity" 1.2 ))

      (RiAttributeBegin)

      (RiColor (Color 1 0 0))

      (RiSurface "plastic")

      (RiTransformBegin)

      (RiTranslate -0.5 -0.5 0)

      ;;(RiRotate -90 1 0 0)

      ;;(RiDisk 0 0.5 270)

      ;;(RiCone 1 0.5 150)

      ;;(RiCone 1.5 0.5 360)

      (RiPolygon 4 (list "P" #f32(0 0 0 0 1 0 1 1 0 1 0 0)))

      ;;(RiPoints 4 (list "P" #f32(0 0 0 0 1 0 1 1 0 1 0 0) "width" 0.25)) ;;"Cs" #f32(1 0 0 0 1 0 0 0 1 1 1 0) "width" #f32(0.25 0.25 0.25 0.25)

      (RiTransformEnd)

      (RiAttributeEnd)

  (RiWorldEnd)

(RiEnd)

(RiPoints 1 (list "P" #f32(0 0 0)))
で原点に点を表示します。

guile-rmanでのRiPointsでは"constantwidth"を使う。ありがとうございます。

#!/usr/bin/guile -s

!#



(use-modules (rman rispec))

(use-modules (rman utilities))



(RiBegin "points4.rib")

  (RiDisplay "points4.tif" "file" "rgb")

  (RiFormat 640 480 1)

  (RiProjection "perspective" '("fov" 30))

  (RiTranslate 0 0 3)

  (RiPixelFilter RiBoxFilter 1 1)

  (RiWorldBegin)

      (RiLightSource "ambientlight" (list "intensity" 0.2))

      (RiLightSource "distantlight" (list "intensity" 1.2 ))

      (RiAttributeBegin)

      (RiColor (Color 1 0 0))

      (RiSurface "plastic")

      (RiTransformBegin)

      (RiTranslate -0.5 -0.5 0)

      (RiPoints 4 (list "P" #f32(0 0 0 0 1 0 1 1 0 1 0 0) "constantwidth" 0.4))

      (RiTransformEnd)

      (RiAttributeEnd)

  (RiWorldEnd)

(RiEnd)