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pythonでパーティクル　その4

cgkitと3Delightでメタボールのパーティクルを設定してみた。
距離、明るさを調整した。
広がってきて面白いです。
point2_blob.jpg



#point2_blob.py - Create a simple Particle System

import random, math

import cgkit.cri

from cgkit.cgtypes import *

from random import uniform as ru





# Load the RenderMan API.

# Replace the library name with whatever renderer you want to use.

ri = cgkit.cri.loadRI("3delight")

cgkit.cri.importRINames(ri, globals())



points=[]

width=[]

colour=[]

normals=[]

pappend=points.append

wappend=width.append

cappend=colour.append

nappend=normals.append



for i in range(0,2000):

    for ix in range(0,3):

        cappend(ru(0,1))

        pappend(ru(-2,2))

        nappend(ru(0,1))

    wappend(ru(0.04,0.45))

    



RiBegin(RI_NULL)

RiImager("background", "color background",(.2,.4,.6))

RiDisplay ("point2_blob.tif","framebuffer","rgb",RI_NULL)

RiFormat(512, 384, -1.0)

RiPixelSamples( 4, 4)

RiShadingRate(1)

RiProjection ("perspective","fov",30,RI_NULL)

RiWorldBegin()

RiLightSource("ambientlight","intensity",0.4)

RiLightSource("distantlight", "to",[1,0,1])

RiTranslate(0,0,6)

RiSurface("plastic")

RiPoints("P",points,"Cs",colour,"width",width,"uniform string type","blobby")

RiWorldEnd()

RiEnd()

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