NUMERICAL SPACE / FUNCTIONS by ISOSURFACE

How about this eddy? I made this by twisting a wave, using trigonometric and some simple functions. y+3.6/(x*x+z*z+1)+0.1*sqrt(x*x+z*z)*cos(2*atan(z/x)-30*pi/(x*x+z*z+1)) Scene file : lpiseddy.txt

An Eddy / 49k / Jul. 2002 / by Tsutomu Higo

I put a fruit made by a sphere under a twig made by a curved cylinder. And I put process on the surface of the fruit by trigonometric functions. ((y-0.5)*(y-0.5)/4+((x-0.2*y)*(x-0.2*y)/3+(z-0.1*y)*(z-0.1*y)/3)-pow(cos((y-0.5)/pi*1.8)*sin(y*pi*3-atan(z/x)*pi)*sin(atan(z/x)*pi*3+y*pi),2)-1)*((y+0.05*z*z+2.3)*(y+0.05*z*z+2.3)+x*x-0.0001)-0.1 Scene file : lpisfrit.txt

A Fruit / 88k / Jul. 2002 / by Tsutomu Higo

I added the waving shape on a plane from the center. I made the waves leaning toward the center and having rise and fall around the center by trigonometric functions. pow(y,0.3) +0.3*sin(z*pi/7)*sin(y*pi/7)*sin(x*pi/7)-0.3*sin(pow(x*x+z*z+0.5*y*y,0.8))-1 Scene file : lpisgold.txt

A Golden Flower / 64k / Jul. 2002 / by Tsutomu Higo

I applied trigonometric functions on a sphere to make the deformed surface and put it on a hollow made by a power function. I added a special treatment for the fusing part to extend the hollowed plane toward the sphere. (y*y+x*x+z*z-40+2*sin(x*2.5)+2*sin(y*2.5)+5*sin(z*2.5))*(z-0.01*(x*x+y*y)+10)+30*sin(x*2.5)+30*sin(y*2.5)+5*sin(z*2.5)-20 Scene file : lpisfuse.txt

Fusing / 55k / Jul. 2002 / by Tsutomu Higo

I made plaits with a slight whirl on a plane by trigonometric functions and erased the under part of the plane. And I added a transformation on the height direction. (y+0.1*pow(x*x+z*z,0.2)*sin(24*atan(z/x)-24*pi/(x*x+z*z+1))-6/(x*x+z*z+1))*(y+1.45-6/(x*x+z*z+1))+0.6 Scene file : lpisdnce.txt

Dancing in a Circle / 89k / Jul. 2002 / by Tsutomu Higo

I made a peanut leaning slightly from 2 sheres and I merged the peanut with a hill made by a power function. I added lines round the peanut by trigonometric functions. ((y*y+(x-8)*(x-8)+z*z-40)*((y+1)*(y+1)+(x+8)*(x+8)+z*z-40)+1000*sin(2*x*pi)*sin(2*x*pi)-2000)*(y+0.01*(x*x+z*z)+10)-6500 Scene file : lpispart.txt

Taking Off / 67k / Jul. 2002 / by Tsutomu Higo