question

Jeffrey Wennekes avatar image
Jeffrey Wennekes asked ·

Is it possible to use Mesh Light on curves

Hi all,

Going through the Arnold docs and not really finding a direct answer. I can use mesh light on polygonal objects just fine and it does seem to be much cleaner in the specular than using a shader with geometry emission.

But here's the tricky part... I have a scene with lots and lots of splines and I would prefer to use them as mesh lights instead of emission shaders. Is there any way we can achieve this?

theoretically I can sweep it...but I would prefer it to stay dynamic (x-particle trails) :).

c4dtoalightcurvescurve
10 |600 characters needed characters left characters exceeded
Toggle Comment visibility. Current Visibility: Viewable by all users

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

3 Answers

· Write an Answer
Jeffrey Wennekes avatar image
Jeffrey Wennekes answered ·

That's interesting @xebajac@zdfpost.net xebajac@zdfpost.net I will definitely try that out... Thanks for the tips and tricks :).

1 comment Share
10 |600 characters needed characters left characters exceeded
Toggle Comment visibility. Current Visibility: Viewable by all users

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

xebajac@zdfpost.net xebajac@zdfpost.net avatar image
xebajac@zdfpost.net xebajac@zdfpost.net answered ·

Sweep those curves/splines using an arnold tag then add an arnold mesh light tag...or if you mean for the light to grow as the trail is being created, try adding a tag to the emitter too for light on the top of the trail....let me know if this works.

Share
10 |600 characters needed characters left characters exceeded
Toggle Comment visibility. Current Visibility: Viewable by all users

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

Stephen Blair avatar image
Stephen Blair answered ·

No, you have to use a mesh.

1 comment Share
10 |600 characters needed characters left characters exceeded
Toggle Comment visibility. Current Visibility: Viewable by all users

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

Jeffrey Wennekes avatar image Jeffrey Wennekes ·

I know it's a 'no'. I was hoping that some workaround would exist; I guess it's a feature request then ;).

0 Likes 0 · ·

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.