question

Alexander Bodal avatar image
Alexander Bodal asked

C4DtoA HDRI Blur

Is it possible to blur an HDRI in C4DtoA?

For example, if I have a highly reflective surface (let's say chrome), and am lighting my scene with an HDRI, it would be nice to be able to use a specific HDRI for lighting but blurring it so that a perfect mirror image of the HDRI doesn't appear in my reflective surface.

Obviously I could just make a copy of the HDRI texture and blur it in Photoshop, but I'm wondering if there is a way to do this directly in C4DtoA/with Arnold in general.

c4dtoahdribl
10 |600

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

You could lower the Resolution of the Skydome light, but it probably wouldn't look very good closeup.

Adding Specular Roughness would be a more physically accurate way to do it.

10 |600

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

Alexander Bodal avatar image
Alexander Bodal answered

Thanks for the tip, I'll try it out.

Also wasn't exactly sure what you mean by adding specular roughness. Do you mean to the texture (hdri for example)?

**EDIT**

Haha nevermind, assuming you meant adding it to the reflective material. The answer was so obvious it was hiding in plain sight :p

Thanks again!

10 |600

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.