Author Topic: Iridescent shader - Corona 1.5.2  (Read 1195 times)

2017-01-11, 18:38:13

maru

  • Corona Team
  • Active Users
  • ****
  • Posts: 5835
  • Marcin
    • View Profile
Iridescent shader was one of the first guides I ever created for Corona. Back then it was possible thanks to a Corona Color Mapper node, which was later removed. Here is an update to that, which can produce exactly the same results.

The main idea is to use Gradient Ramp node with type set to "mapped" and falloff used as "source map". You can then create a rainbowy gradient, and plug this into reflection, diffuse, or any other material component you wish.

It can be also used to produce a kind of fake dispersion, though it's _a bit_ slow.

A sample max scene can be found below.






Also, which version of Corona are you using?

Corona jest fajna? Grupa Corona Renderer Polska na Facebooku / Corona Renderer Helpdesk Portal

2017-01-11, 19:15:36
Reply #1

GranDosicua

  • Active Users
  • **
  • Posts: 44
  • G24 Studio
    • View Profile
    • G24 Studio
Aaah, dispersion... How I miss it!
Corona RenderER. C'mon, is not so difficult...

2017-01-11, 21:58:02
Reply #2

cecofuli

  • Active Users
  • **
  • Posts: 1233
    • View Profile
Yes, dispersion should be "a must", especially for jewelry world.
Right now it's impossible to create a decent diamond.
Maxwell render is famous for that.

But, thanks for the tutorial. It's great )

2017-01-24, 19:18:12
Reply #3

SharpEars

  • Active Users
  • **
  • Posts: 57
    • View Profile

2017-02-02, 15:37:34
Reply #4

tomislavn

  • Active Users
  • **
  • Posts: 619
  • Lightbringer
    • View Profile
    • My 3docean Portolio
+1+1+1+1+1+1+1 been thumbing up that dispersion for 2 years now :D
My 3d stock portfolio - http://3docean.net/user/tomislavn

2017-03-13, 14:46:54
Reply #5

Tanakov

  • Active Users
  • **
  • Posts: 482
  • Corona is faster than diarrhea
    • View Profile
super, dziękuję
Days without using Vray/Other engine to a new project: 917 (since 2014.06.02)