march(

  Repeat(

    StairsDifference(

      Sphere(2),

      Repeat( Sphere( .1 ), .25 ),

      .25,

      10

    ),

    6

  ).translate( 0,-1.5 ),

  Plane().texture( 'cellular', { strength:-.5, scale:10 })

)

.fog( .1, Vec3(0,0,.25) )

.background( Vec3(0,0,.25) )

.render()

​

/* __--__--__--__--__--__--__--____

select code and hit ctrl+enter to  

execute. alt+enter (option+enter on 

a mac) executes a block of code.   

ctrl+shift+g toggles hiding         

the gui/code. try the other demos  

using the menu in the upper right 

corner. when you're ready to start 

coding go through the tutorials     

found in the same menu. Click on   

the help link for a reference.       

For a nice intro on ray marching and

signed distance functions,which are

the techniques used by marching.js, 

see:                               

https://bit.ly/2qRMrpe             

Finally, if you'd prefer to work   

outside of the browser, try the     

Atom plugin for marching.js:       

https://atom.io/packages/atom-marching

** __--__--__--__--__--__--__--__*/