question

Kristina Stankyte avatar image
Kristina Stankyte asked ·

Is there a way to make opacity work on a lowpoly object without transparent render?

I have a low-poly plank, UV'd and with texture and a normal map. I sculpted the hires version for details in zBrush and baked the details on top. I really wanted round corners on the plank and got the desired results with alpha maps. The problem is now that round corners obviously make the object see-through where I don't want it. Is there a way to go around this issue (don't want to re-do all of the work on zBrush, uv map all planks I've done, rebake etc.) or do I just have to live with square corners?

Thanks for any suggestions.

arnoldrenderopacityalpha for geometrytransparency
render.png (229.6 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.

1 Answer

· Write an Answer
Henrik Kragh avatar image
Henrik Kragh answered ·

So you want the alpha to work from some angles, but not from others? I really don’t see how that would be possible. As in: How would the alpha know when to show transparency, and when not to?

1 comment Share
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.

Yeah the more I thought about it the more I realised I don't think it's possible. I just thought maybe there's a way to add something onto the map to add a colour or if there's a different way to achieve the look without changing the subdivisions. Thanks for the reply though! I appreciate it.

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.