Author Topic: CoronaDecals playground!  (Read 36425 times)

2022-05-11, 15:26:34
Reply #75

nauticus25

  • Active Users
  • **
  • Posts: 63
    • View Profile
Just a query, as i havent had chance to test this feature yet. Can you make the decals tile? Is it purely dependant on the planes UVs for placement?
It got me thinking about stitch lines in fabric and i was just wondering how easy they would be to achieve with decals.

+1 for this. Use case is for diagonal hatch marks painted on pavement. I have several different sized areas to fill and currently need to make different materials for each one. Ideally, I would have one base material (6" wide stripe, 18" wide gap) that can be applied to every CoronaDecal no matter what size it is.

On a related note, it would be great to have non-rectangular CoronaDecals as well. Again, for pavement marking. Many parking lot regions are non-rectangular:
i9-12900K @ 3.2GHz, 64GB RAM, 3090ti
Max 2024, Corona 10

2022-07-10, 09:15:33
Reply #76

jeandedesa2019

  • Active Users
  • **
  • Posts: 5
    • View Profile
When creating for example a teapot and applying a Corona Decal, so far no problem. But when you want to add, for example, drops of water using ChaosScatter to the teapot and to the Corona Decal, the drops of water also appear in the final rendering in the box surrounding the Corona Decal

2022-07-10, 09:18:14
Reply #77

jeandedesa2019

  • Active Users
  • **
  • Posts: 5
    • View Profile
Sorry it'not a teapot

2022-07-10, 10:16:56
Reply #78

romullus

  • Global Moderator
  • Active Users
  • ****
  • Posts: 8779
  • Let's move this topic, shall we?
    • View Profile
    • My Models
You only need to add the teapot (car, whatever) to the scatter's distribute-on targets list and not the decals, then it should work as you expect it.
I'm not Corona Team member. Everything i say, is my personal opinion only.
My Models | My Videos | My Pictures

2022-07-10, 10:27:13
Reply #79

romullus

  • Global Moderator
  • Active Users
  • ****
  • Posts: 8779
  • Let's move this topic, shall we?
    • View Profile
    • My Models
Here's the proof that it works. The scatter (droplets) is distributed on teapot only and not on decals (bird droppings). As you can see the droplets are placed exactly where are they supposed to be.

By the way, you may want to use include/exclude list for decals and include only the car body, or exclude the scatter, otherwise decals will be projected on the droplets themselves, which will look weird.
I'm not Corona Team member. Everything i say, is my personal opinion only.
My Models | My Videos | My Pictures

2022-07-10, 10:29:54
Reply #80

jeandedesa2019

  • Active Users
  • **
  • Posts: 5
    • View Profile
Thanks for your answer, but i want to have some water drop effect on my corona decal too

2022-07-10, 10:35:13
Reply #81

jeandedesa2019

  • Active Users
  • **
  • Posts: 5
    • View Profile
Sorry, I hadn't seen your answer

2022-07-10, 10:40:25
Reply #82

romullus

  • Global Moderator
  • Active Users
  • ****
  • Posts: 8779
  • Let's move this topic, shall we?
    • View Profile
    • My Models
If you will exclude decals from scatter, that doesn't mean it will not scatter droplets over decal, it means it won't scatter droplets on decal helper object itself, which is what you're complaining in your first message. Does that makes sense?
I'm not Corona Team member. Everything i say, is my personal opinion only.
My Models | My Videos | My Pictures

2022-07-10, 10:42:13
Reply #83

jeandedesa2019

  • Active Users
  • **
  • Posts: 5
    • View Profile
I exclude decal to scatter, is now very good. Thanks a lot

2022-07-10, 10:45:20
Reply #84

romullus

  • Global Moderator
  • Active Users
  • ****
  • Posts: 8779
  • Let's move this topic, shall we?
    • View Profile
    • My Models
I exclude decal to scatter, is now very good. Thanks a lot

Glad to help you!
I'm not Corona Team member. Everything i say, is my personal opinion only.
My Models | My Videos | My Pictures

2022-08-25, 13:39:01
Reply #85

fabio81

  • Active Users
  • **
  • Posts: 444
    • View Profile
Hopefully someone else will join the party - playing with decals is seriously fun :] Here's another one from me - lazy house. Just a box with bricks material and windows decals scattered on top. I was pleasantly surprised to find that even AO works with decals (dirt leaks under windows).

impressive! did you get some displacement maps to get this effect?

2022-08-25, 14:49:24
Reply #86

romullus

  • Global Moderator
  • Active Users
  • ****
  • Posts: 8779
  • Let's move this topic, shall we?
    • View Profile
    • My Models
Decal textures for this rendering are from Substance Source: https://substance3d.adobe.com/assets/allassets?q=facade&u=facade There are lots of useful decals over there.
I'm not Corona Team member. Everything i say, is my personal opinion only.
My Models | My Videos | My Pictures

2022-08-25, 15:37:29
Reply #87

fabio81

  • Active Users
  • **
  • Posts: 444
    • View Profile
Decal textures for this rendering are from Substance Source: https://substance3d.adobe.com/assets/allassets?q=facade&u=facade There are lots of useful decals over there.

wow!

I hadn't tried decals like this yet!
How did you get the dirt under? have you added an AO and multiplied on the diffuse channel?
I'm on 4D cinema :)

thanks

2022-08-25, 16:07:03
Reply #88

fabio81

  • Active Users
  • **
  • Posts: 444
    • View Profile
Perfect!

even with Ambient occlusion!
only the way to pierce the glass would be missing but you would see the wall ..

2022-08-25, 16:10:03
Reply #89

romullus

  • Global Moderator
  • Active Users
  • ****
  • Posts: 8779
  • Let's move this topic, shall we?
    • View Profile
    • My Models
How did you get the dirt under? have you added an AO and multiplied on the diffuse channel?
I'm on 4D cinema :)

As far as i recall, that's exactly how i did it. The host program doesn't matter in this case, since everything was done with the power of Corona :]
I'm not Corona Team member. Everything i say, is my personal opinion only.
My Models | My Videos | My Pictures