Author Topic: Is there a way to fine-tune the glossiness in Coronamaterial?  (Read 4826 times)

2014-04-28, 12:07:09

Ceyes

  • Active Users
  • **
  • Posts: 15
    • View Profile
Is there a way to fine-tune the glossiness in Coronamaterial? The value of 0,99 gives me a bit to much glossiness and the next possible value is 1,0.  Now i controlled the value via map. In this case you have 255 steps for glossiness. To have 3 digits to define the value (i.e. 0,995) would be great.

Greetings

Mirko

2014-04-28, 12:17:48
Reply #1

romullus

  • Global Moderator
  • Active Users
  • ****
  • Posts: 9021
  • Let's move this topic, shall we?
    • View Profile
    • My Models
You can increase precision of 3ds max's spinners in preference settings or use 16/32 bit bitmaps to get more than 256 steps.
I'm not Corona Team member. Everything i say, is my personal opinion only.
My Models | My Videos | My Pictures

2014-04-28, 13:02:54
Reply #2

Ceyes

  • Active Users
  • **
  • Posts: 15
    • View Profile
Increasing the precision of 3ds max's spinners doesnt have any effect in Coronamaterial. Now i have a solid colormap with 254,254,254 in the map-slot, but this is still to much of glossines.

Thanks

Mirko

2014-04-28, 13:34:05
Reply #3

Captain Obvious

  • Active Users
  • **
  • Posts: 167
    • View Profile
If you alt-drag in spinners, it moves in smaller increments, and ctrl-dragging is larger increments. You can also just directly type in any value you want.

2014-04-28, 14:03:41
Reply #4

Ceyes

  • Active Users
  • **
  • Posts: 15
    • View Profile
Quote
You can also just directly type in any value you want.

Yes, thats what i have done ;). if i wrote 0,995 it always corrects it to 0,99. The spinners are not so important, but the rounding of numbers.
Try to give an coranamaterial a glossines 0,995 and you´ll see the result.


Mirko

2014-04-28, 14:33:08
Reply #5

maru

  • Corona Team
  • Active Users
  • ****
  • Posts: 13130
  • Marcin
    • View Profile
Max 2014 here, I have no problems with typing values like 0,987654.

update: aaah, ok, looks like the results are indeed the same
Marcin Miodek | chaos-corona.com
3D Support Team Lead - Corona | contact us

2014-04-28, 14:44:29
Reply #6

Juraj

  • Active Users
  • **
  • Posts: 4797
    • View Profile
    • studio website
And here I thought Corona was quite sufficient in this regard, because the transition between 0-1 in glossy seems "slower". In Vray, with Ward mode, 0.99 is like completely blurry suddenly.
Maybe this is something that could be alleviated altogether with more advanced ior model, or maybe blend two materials with peak reflection being 1.0 glossy, or simply use some slight scratch map in specular slots
instead of glossy value to give the off-blurry look.
Please follow my new Instagram for latest projects, tips&tricks, short video tutorials and free models
Behance  Probably best updated portfolio of my work
lysfaere.com Please check the new stuff!

2014-04-28, 15:28:57
Reply #7

romullus

  • Global Moderator
  • Active Users
  • ****
  • Posts: 9021
  • Let's move this topic, shall we?
    • View Profile
    • My Models
Sorry guys, but i clearly see difference between 0.99 and 0.999 glossiness.

Edit: difference between 0.99 and 0.995 is there too, but it's quite hard to see.
I'm not Corona Team member. Everything i say, is my personal opinion only.
My Models | My Videos | My Pictures

2014-04-28, 15:47:26
Reply #8

romullus

  • Global Moderator
  • Active Users
  • ****
  • Posts: 9021
  • Let's move this topic, shall we?
    • View Profile
    • My Models
And if you want to control it with texmap, there is very simple way to fine tune it:
I'm not Corona Team member. Everything i say, is my personal opinion only.
My Models | My Videos | My Pictures

2014-04-29, 08:50:53
Reply #9

Ceyes

  • Active Users
  • **
  • Posts: 15
    • View Profile
Quote
Increasing the precision of 3ds max's spinners doesnt have any effect in Coronamaterial

That´s not true .... only before you restart max ;). After a restart the given value (i.e. 0,9954) is not roundet to 0,99 even more.

Thanks for tips.

Greetings and happy rendering

Mirko