question

Edwin Fuhrmann avatar image
Edwin Fuhrmann asked

Building crystal shaders using dielectrics?

gem-render-final.jpgHello there.


I worked a lot on building realistic crystal like shaders and i am relatively happy with the results so far (Yellow/pink picture). For the next one i want to go a step further but i am not quite sure how to achieve this look :screenshot-2021-04-06-224606.pngI started with a normal mesh and a shader with transmission and and tried to stack different elements using dielectrics but it won´t work properly...also scattering different objects does not give me the same look...would you build this in one shader with vertex maps or something similar? Or would you use multiple objects with dielectrics and scatter objects on the base modell?

Thanks and take care!

shadersshader
10 |600 characters needed characters left characters exceeded

Up to 5 attachments (including images) can be used with a maximum of 2.0 MiB each and 9.8 MiB total.

Lee Griggs avatar image
Lee Griggs answered

I recommend this series of tutorials by Arvid Schneider. It's MtoA but the shading workflow will be the same so it should be easy to follow.

10 |600 characters needed characters left characters exceeded

Up to 5 attachments (including images) can be used with a maximum of 2.0 MiB each and 9.8 MiB total.

Edwin Fuhrmann avatar image
Edwin Fuhrmann answered

okay this looks nice. i will definitely have a look at it!

thank you-

10 |600 characters needed characters left characters exceeded

Up to 5 attachments (including images) can be used with a maximum of 2.0 MiB each and 9.8 MiB total.

Edwin Fuhrmann avatar image
Edwin Fuhrmann answered

so far so good. at the end of part 1 where arvid puts a multiply/divide node in for the negative

bump values...is there a node/ way to do this in c4d? there also multiply and divide nodes but they somehow won´t work the same way?

2 comments
10 |600 characters needed characters left characters exceeded

Up to 5 attachments (including images) can be used with a maximum of 2.0 MiB each and 9.8 MiB total.

You can use the Arnold multiply and divide nodes.

MtoA actually converts the Maya multiply/divide to Arnold multiply and divide nodes

0 Likes 0 ·
Edwin Fuhrmann avatar image Edwin Fuhrmann Stephen Blair ♦♦ ·

okay but how exactly does it work. i have the output of the range node and where do i go in the divide/multiply from there?

thanks in advance!

0 Likes 0 ·
Edwin Fuhrmann avatar image
Edwin Fuhrmann answered

i could also use a hint for a clean y- ramp---when i use the setup with the ramp(set on v) and the triplaner node i get this result:1.png

it´s okay so far but the dark parts on the top are a problem in the following shading process...if i use a state vector node into the ramp the distribution is even more over the place..3.png

what could be a good setup for a clean y-ramp? thanks for the help-


1.png (148.3 KiB)
3.png (174.7 KiB)
10 |600 characters needed characters left characters exceeded

Up to 5 attachments (including images) can be used with a maximum of 2.0 MiB each and 9.8 MiB total.

Write an Answer

Hint: Notify or tag a user in this post by typing @username.

Up to 5 attachments (including images) can be used with a maximum of 2.0 MiB each and 9.8 MiB total.

Welcome to the Arnold Answers community.

This is the place for Arnold renderer users everywhere to ask and answer rendering questions, and share knowledge about using Arnold, Arnold plugins, workflows and developing tools with Arnold.

If you are a new user to Arnold Answers, please first check out our FAQ and User Guide for more information.

When posting questions, please be sure to select the appropriate Space for your Arnold plugin and include the plugin version you are using.

Please include images, scene and log files whenever possible as this helps the community answer your questions.

Instructions for generating full verbosity log files are available for MtoA, MaxtoA, C4DtoA, HtoA, KtoA, and Kick.

If you are looking for Arnold Documentation and Support please visit the Arnold Support site.

To try Arnold please visit the Arnold Trial page.

Bottom No panel present for this section.