Chaos Corona Forum

Chaos Corona for Cinema 4D => [C4D] I need help! => Topic started by: arjunkumar1108 on 2020-10-11, 07:40:35

Title: Need Help - Creating a Pattern using alpha and png
Post by: arjunkumar1108 on 2020-10-11, 07:40:35

I am very new to C4D and Corona renderer. If you see the attached image you can see materials with striped patterns and circles all over the surface of varing sizes. How do I create that using cornoa materials? I want to be able to repeat a pattern I make as a png be added on materials.

Thank you so much!

Title: Re: Need Help - Creating a Pattern using alpha and png
Post by: burnin on 2020-10-12, 15:28:50

Same way as you'd do material for Standard /Physical engine. Then simply copying Textures from Reflectance to Reflection channel of Corona Material. Or vice versa. Using either procedural or static approach. Both work.
ie. these are all procedural - (Physical vs Corona renderer):

(https://forum.corona-renderer.com/index.php?action=dlattach;topic=31165.0;attach=135213;image)

2x Surface > Tiles > Circles 1 for Polka Dots & Lines 1 for Stripes
1x Noise: Voronoi 1 (clamped) is used to get more random dot pattern

Title: Re: Need Help - Creating a Pattern using alpha and png
Post by: arjunkumar1108 on 2020-10-13, 19:14:31

Can you please share the .c4d file! Would really appreciate it, am still a little confused.

Title: Re: Need Help - Creating a Pattern using alpha and png
Post by: Beanzvision on 2020-10-14, 13:09:48

Hopefully, this may help you.

(https://forum.corona-renderer.com/index.php?action=dlattach;topic=31165.0;attach=135431;image)

Title: Re: Need Help - Creating a Pattern using alpha and png
Post by: arjunkumar1108 on 2020-10-14, 17:04:14

Thank you so much! This was very helpful :)

Q. What if I want another material below these stripes? Do I have to use a layered material?

Title: Re: Need Help - Creating a Pattern using alpha and png
Post by: bnji on 2020-10-14, 22:48:34

It depends on what you're trying to achieve.
Personally, I would prefer to use stacked material tags.
Regards.

Title: Re: Need Help - Creating a Pattern using alpha and png
Post by: Beanzvision on 2020-10-15, 10:09:24

Quote from: arjunkumar1108 on 2020-10-14, 17:04:14

Thank you so much! This was very helpful :)

Q. What if I want another material below these stripes? Do I have to use a layered material?

There's no right or wrong here. It would depend on how detailed you want your material to get. If you just plan to add an extra texture below the stripes then my colleague's suggestion should be more than enough here ;)

(https://forum.corona-renderer.com/index.php?action=dlattach;topic=31165.0;attach=135556;image)