Rendering学習日記

日々3DCGの世界は進歩しているけど、勉強して理解したことをまとめていきたい。RenderMan互換レンダラーやグローバル・イルミネーション。いろんなことに好奇心を持ち面白くなってくる。目指せShader書き!!

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はじめてのFujiyama Renderer その28

Fujiyama Renderer0.1.3リリースされた。
SSS(Subsurface scattering shader)が使えるようになりました。皮膚や牛乳のような物質の表現ができる。

試しにTeapotを4つの設定でやってみる。光の当て方と視点を検討。
レンダリング時間 1h 28m 45s
teapotscn02.jpg

以下はPythonサンプル


#!/usr/bin/env python
# -*- coding: utf-8 -*-

#export PYTHONPATH=$PYTHONPATH:/usr/lib/python2.6/site-packages/:$HOME/Fujiyama-Renderer/bin/
from colorinc import si

import fujiyama

#si = fujiyama.SceneInterface()

#plugins
si.OpenPlugin('ConstantShader')
si.OpenPlugin('PlasticShader')
si.OpenPlugin('SSSShader')

#Camera
si.NewCamera('cam1', 'PerspectiveCamera')
si.SetProperty3('cam1', 'rotate', -30, 0.00, 0.00)
si.SetProperty3('cam1', 'translate', 0.00, 6.00, 7.00)
si.SetProperty1('cam1', 'fov', 35)

#Light
"""
si.NewLight('lighta', 'PointLight')
si.SetProperty3('lighta', 'translate', -5, 4, 5)
si.SetProperty1('lighta', 'intensity', 0.03)

si.NewLight('lightb', 'SphereLight')
si.SetProperty3('lightb', 'translate', 5, 4, 5)
si.SetProperty3('lightb', 'scale', .5, .5, .5)
si.SetProperty1('lightb', 'intensity', 0.03)
"""
#Light
si.NewLight( 'light0', 'PointLight')
si.SetProperty3( 'light0', 'translate', 0.900771, 12, 4.09137)
si.SetProperty1( 'light0', 'intensity', 0.03125)
si.NewLight( 'light1', 'PointLight')
si.SetProperty3( 'light1', 'translate', 2.02315, 12, 5.28021)
si.SetProperty1( 'light1' ,'intensity', 0.03125)
si.NewLight( 'light2', 'PointLight')
si.SetProperty3( 'light2', 'translate', 10.69, 12, 13.918)
si.SetProperty1( 'light2', 'intensity', 0.03125)
si.NewLight( 'light3', 'PointLight')
si.SetProperty3( 'light3', 'translate', 4.28027, 12, 7.58462)
si.SetProperty1( 'light3', 'intensity', 0.03125)
si.NewLight( 'light4', 'PointLight')
si.SetProperty3( 'light4', 'translate', 12.9548, 12, 1.19914)
si.SetProperty1( 'light4', 'intensity', 0.03125)
si.NewLight( 'light5', 'PointLight')
si.SetProperty3( 'light5', 'translate', 6.55808, 12, 2.31772)
si.SetProperty1( 'light5', 'intensity', 0.03125)
si.NewLight( 'light6', 'PointLight')
si.SetProperty3( 'light6', 'translate', 0.169064, 12, 10.9623)
si.SetProperty1( 'light6', 'intensity', 0.03125)
si.NewLight( 'light7', 'PointLight')
si.SetProperty3( 'light7', 'translate', 1.25002, 12, 4.51314)
si.SetProperty1( 'light7', 'intensity', 0.03125)
si.NewLight( 'light8', 'PointLight')
si.SetProperty3( 'light8', 'translate', 2.46758, 12, 5.73382)
si.SetProperty1( 'light8', 'intensity', 0.03125)
si.NewLight( 'light9', 'PointLight')
si.SetProperty3( 'light9', 'translate', 3.55644, 12, 6.84334)
si.SetProperty1( 'light9','intensity', 0.03125)
si.NewLight( 'light10', 'PointLight')
si.SetProperty3( 'light10', 'translate', 4.76112, 12, 8.00264)
si.SetProperty1( 'light10', 'intensity', 0.03125)
si.NewLight( 'light11', 'PointLight')
si.SetProperty3( 'light11', 'translate', 13.3267,12, 9.10333)
si.SetProperty1( 'light11', 'intensity', 0.03125)
si.NewLight( 'light12', 'PointLight')
si.SetProperty3( 'light12', 'translate', 14.4155, 12, 2.68084)
si.SetProperty1( 'light12', 'intensity', 0.03125)
si.NewLight( 'light13', 'PointLight')
si.SetProperty3( 'light13', 'translate', 8.10755, 12, 3.79629)
si.SetProperty1( 'light13', 'intensity', 0.03125)
si.NewLight( 'light14', 'PointLight')
si.SetProperty3( 'light14', 'translate', 9.21103, 12, 4.9484)
si.SetProperty1( 'light14', 'intensity', 0.03125)
si.NewLight( 'light15', 'PointLight')
si.SetProperty3( 'light15', 'translate', 2.83469, 12, 6.09221)
si.SetProperty1( 'light15', 'intensity', 0.03125)
si.NewLight( 'light16', 'PointLight')
si.SetProperty3( 'light16', 'translate', 4.00945, 12, 7.18302)
si.SetProperty1( 'light16', 'intensity', 0.03125)
si.NewLight( 'light17', 'PointLight')
si.SetProperty3( 'light17', 'translate', 12.6072, 12, 0.832089)
si.SetProperty1( 'light17', 'intensity', 0.03125)
si.NewLight( 'light18', 'PointLight')
si.SetProperty3( 'light18', 'translate', 6.21169, 12, 1.98055)
si.SetProperty1( 'light18', 'intensity', 0.03125)
si.NewLight( 'light19', 'PointLight')
si.SetProperty3( 'light19', 'translate', 7.39599, 12, 10.5563)
si.SetProperty1( 'light19', 'intensity', 0.03125)
si.NewLight( 'light20', 'PointLight')
si.SetProperty3( 'light20', 'translate', 8.52421, 12, 4.15086)
si.SetProperty1( 'light20', 'intensity', 0.03125)
si.NewLight( 'light21', 'PointLight')
si.SetProperty3( 'light21', 'translate', 9.5891, 12, 5.39715)
si.SetProperty1( 'light21', 'intensity', 0.03125)
si.NewLight( 'light22', 'PointLight')
si.SetProperty3( 'light22', 'translate', 3.18967, 12, 13.9542)
si.SetProperty1( 'light22', 'intensity', 0.03125)
si.NewLight( 'light23','PointLight')
si.SetProperty3( 'light23', 'translate', 4.41432, 12, 0.082813)
si.SetProperty1( 'light23', 'intensity', 0.03125)
si.NewLight( 'light24', 'PointLight')
si.SetProperty3( 'light24', 'translate', 5.48803, 12, 1.21856)
si.SetProperty1( 'light24', 'intensity', 0.03125)
si.NewLight( 'light25', 'PointLight')
si.SetProperty3( 'light25', 'translate', 6.57647, 12, 2.31432)
si.SetProperty1( 'light25', 'intensity', 0.03125)
si.NewLight( 'light26', 'PointLight')
si.SetProperty3( 'light26', 'translate', 0.265098, 12, 10.9453)
si.SetProperty1( 'light26', 'intensity', 0.03125)
si.NewLight( 'light27', 'PointLight')
si.SetProperty3( 'light27', 'translate', 8.84422, 12, 12.1117)
si.SetProperty1( 'light27', 'intensity', 0.03125)
si.NewLight( 'light28', 'PointLight')
si.SetProperty3( 'light28', 'translate', 10.0154, 12, 5.67625)
si.SetProperty1( 'light28', 'intensity', 0.03125)
si.NewLight( 'light29', 'PointLight')
si.SetProperty3( 'light29', 'translate', 11.0907, 12, 14.4043)
si.SetProperty1( 'light29', 'intensity', 0.03125)
si.NewLight( 'light30', 'PointLight')
si.SetProperty3( 'light30', 'translate', 4.71726, 12, 7.98851)
si.SetProperty1( 'light30', 'intensity', 0.03125)
si.NewLight( 'light31', 'PointLight')
si.SetProperty3( 'light31', 'translate', 13.3907, 12, 9.08986)
si.SetProperty1( 'light31', 'intensity', 0.03125)

#Texture
si.NewTexture( 'tex1', '../mip/ennis.mip')
si.NewTexture('tex2', '../mip/uvmap.mip')

#Shader
si.NewShader('floor_shader', 'PlasticShader')
si.NewShader('dome_shader', 'ConstantShader')
#Shader
si.NewShader('teapot_shader1', 'SSSShader')
si.SetProperty3('teapot_shader1', 'reflect', 0, 0, 0)
si.SetProperty1('teapot_shader1', 'enable_single_scattering', 1)
si.SetProperty1('teapot_shader1', 'enable_multiple_scattering', 0)
si.SetProperty1('teapot_shader1', 'single_scattering_samples', 1)
si.SetProperty1('teapot_shader1', 'multiple_scattering_samples', 1)
si.SetProperty3('teapot_shader1', 'scattering_coefficient', .007, .018, .003)
si.SetProperty3('teapot_shader1', 'absorption_coefficient', .097, .0061, .145)

si.NewShader('teapot_shader2', 'SSSShader')
si.SetProperty3('teapot_shader2', 'reflect', 0, 0, 0)
si.SetProperty1('teapot_shader2', 'enable_single_scattering', 1)
si.SetProperty1('teapot_shader2', 'enable_multiple_scattering', 0)
si.SetProperty1('teapot_shader2', 'single_scattering_samples', 1)
si.SetProperty1('teapot_shader2', 'multiple_scattering_samples', 1)
si.SetProperty3('teapot_shader2', 'scattering_coefficient', .07, .122, .19)
si.SetProperty3('teapot_shader2', 'absorption_coefficient', .00014, .00025, .00142)
si.SetProperty3('teapot_shader2', 'specular', .01, .01, .01)

si.NewShader('teapot_shader3', 'SSSShader')
si.SetProperty3('teapot_shader3', 'reflect', 0, 0, 0)
si.SetProperty1('teapot_shader3', 'enable_single_scattering', 1)
si.SetProperty1('teapot_shader3', 'enable_multiple_scattering', 0)
si.SetProperty1('teapot_shader3', 'single_scattering_samples', 1)
si.SetProperty1('teapot_shader3', 'multiple_scattering_samples', 1)
si.SetProperty3('teapot_shader3', 'scattering_coefficient', .074, .088, .101)
si.SetProperty3('teapot_shader3', 'absorption_coefficient', .0032, .017, .048)
si.SetProperty3('teapot_shader3', 'specular', .1, .1, .1)
si.SetProperty1('teapot_shader3', 'roughness', .2)

si.NewShader('teapot_shader4', 'SSSShader')
si.SetProperty3('teapot_shader4', 'reflect', 0, 0, 0)
si.SetProperty1('teapot_shader4', 'enable_single_scattering', 1)
si.SetProperty1('teapot_shader4', 'enable_multiple_scattering', 0)
si.SetProperty1('teapot_shader4', 'single_scattering_samples', 1)
si.SetProperty1('teapot_shader4', 'multiple_scattering_samples', 1)
si.SetProperty3('teapot_shader4', 'scattering_coefficient', .255, .321, .377)
si.SetProperty3('teapot_shader4', 'absorption_coefficient', .00011, .00024, .0014)


#Mesh
si.NewMesh('teapot_mesh', '../mesh/teapot.mesh')
si.NewMesh('floor_mesh', '../mesh/floor2.mesh')
si.NewMesh('dome_mesh', '../mesh/dome.mesh')

#ObjectInstance
#ObjectInstance
si.NewObjectInstance('teapot1','teapot_mesh')
si.SetProperty3('teapot1', 'translate', -1.7, 0.5, -3)
si.SetProperty3('teapot1', 'scale', 1.6, 1.6, 1.6)
si.AssignShader('teapot1','teapot_shader1')

si.NewObjectInstance('teapot2','teapot_mesh')
si.SetProperty3('teapot2', 'translate', 1.7, 0.5, -3)
si.SetProperty3('teapot2', 'scale', 1.6, 1.6, 1.6)
si.AssignShader('teapot2','teapot_shader2')

si.NewObjectInstance('teapot3','teapot_mesh')
si.SetProperty3('teapot3', 'translate', 1.7, 0.5, 0)
si.SetProperty3('teapot3', 'scale', 1.6, 1.6, 1.6)
si.AssignShader('teapot3','teapot_shader3')

si.NewObjectInstance('teapot4','teapot_mesh')
si.SetProperty3('teapot4', 'translate', -1.7, 0.5, 0)
si.SetProperty3('teapot4', 'scale', 1.6, 1.6, 1.6)
si.AssignShader('teapot4','teapot_shader4')

si.NewObjectInstance('floor1','floor_mesh')
si.SetProperty3('floor1','translate', 0, 0, -2.5)
si.SetProperty3('floor1','scale', 1.1, 1.1, 1.1)
si.SetProperty3('floor1','rotate', 0, 0, 0)
si.AssignShader('floor1','floor_shader')
si.AssignTexture('floor_shader', 'diffuse_map', 'tex2')

si.NewObjectInstance('dome1','dome_mesh')
si.SetProperty3( 'dome1', 'scale', .5, .5, .5)
si.SetProperty3( 'dome1', 'rotate', 0 ,135, 0)
si.AssignShader( 'dome1', 'dome_shader')
si.AssignTexture( 'dome_shader' ,'texture', 'tex1')

#ObjectGroup
si.NewObjectGroup( 'group1')
si.AddObjectToGroup( 'group1', 'teapot1')
si.AddObjectToGroup( 'group1', 'teapot2')
si.AddObjectToGroup( 'group1', 'teapot3')
si.AddObjectToGroup( 'group1', 'teapot4')
si.AssignObjectGroup( 'teapot1','shadow_target', 'group1')
si.AssignObjectGroup( 'teapot2','shadow_target', 'group1')
si.AssignObjectGroup( 'teapot3','shadow_target', 'group1')
si.AssignObjectGroup( 'teapot4','shadow_target', 'group1')
si.AssignObjectGroup( 'floor1','shadow_target', 'group1')


#FrameBuffer
si.NewFrameBuffer('fb1', 'rgba')

#Properties
si.ShowPropertyList('Renderer')

#Renderer
si.NewRenderer('ren1')
si.AssignCamera('ren1', 'cam1')
si.AssignFrameBuffer('ren1', 'fb1')
si.SetProperty2('ren1', 'resolution', 640, 480)
#si.SetProperty2('ren1', 'resolution', 160, 120)

si.SetProperty1('ren1', 'raymarch_step', .01)
si.SetProperty1('ren1', 'raymarch_shadow_step', .02)
si.SetProperty1('ren1', 'raymarch_reflect_step', .02)

#Rendering
si.RenderScene('ren1')

#Output
si.SaveFrameBuffer('fb1', '../teapotscn02.fb')

#Run commands
si.Run()
#si.Print()



teapot33.jpg
Fujiyama Renderer | - | -