Is it possible to import Material X presets?

Forums Solaris and Karma Is it possible to import Material X presets?

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Lyubomir Popov: Member; 29 posts; Joined: Oct. 2015; Offline

Dec. 5, 2021 5:18 a.m.

Hi, daft question but are there any material x presets available in H19, similar to the ones found on e.g. the principal shader? Couldn't find any when I click the cog on a mtlxstandard_surface.

I can see some examples in the official materialx repo on github, is there a way to import those into houdini?https://github.com/materialx/MaterialX/tree/main/resources/Materials/Examples/StandardSurface [github.com]

Edited by Lyubomir Popov - Dec. 5, 2021 06:26:23

Attachments:
material-x-presets.jpg (175.4 KB)


goldleaf: Staff; 4159 posts; Joined: Sept. 2007; Offline

Dec. 6, 2021 10:30 a.m.

They aren't presets on an HDA yet, but they do ship with Houdini since they are part of MaterialX. You can find them in $HH/materialx/resources/Materials/Examples/StandardSurface/
The MaterialX standard test geometries and hdr lights are also in $HH/materialx/resources.

You can use a Reference LOP to reference a specific material from a file; attached is a hip file that shows how to do this.

Hope that helps!

Attachments:
reference_materialx_examples.hip (392.5 KB)
screenshot_20211206_092847.png (1.1 MB)

I'm o.d.d.


Lyubomir Popov: Member; 29 posts; Joined: Oct. 2015; Offline

Dec. 6, 2021 3:42 p.m.

Thank you!


Siavash Tehrani: Member; 710 posts; Joined: July 2005; Online

Dec. 11, 2021 1:17 a.m.

This works when I reference in one of the .mtlx files from the Examples folder. However, when I Right-click > Save > MaterialX (on a Standard Surface node for example), the resulting .mtlx file gives me this "Unresolved reference path" warning and no material. Any thoughts?

Attachments:
hindie_vsKSytvjym.png (82.0 KB)


microvswind: Member; 7 posts; Joined: Nov. 2017; Offline

Dec. 20, 2021 12:18 p.m.

and how to edit the .mtlx referenced.
i drag the .mtlx from scene tree to path of edit materialnode.and then i press load and nothing happen.
what is correct method to edit the .mtlx ?


jsmack: Member; 7741 posts; Joined: Sept. 2011; Offline

Dec. 20, 2021 1:12 p.m.

microvswind
and how to edit the .mtlx referenced.
i drag the .mtlx from scene tree to path of edit materialnode.and then i press load and nothing happen.
what is correct method to edit the .mtlx ?

It's working for me. Are you filling in the path to the material prim on the edit material network node?


microvswind: Member; 7 posts; Joined: Nov. 2017; Offline

Dec. 20, 2021 10:57 p.m.

yes.and the .mtlx mateial can not works above attached by @goldeleaf.

Attachments:
22.gif (1013.1 KB)


jsmack: Member; 7741 posts; Joined: Sept. 2011; Offline

Dec. 20, 2021 11:10 p.m.

microvswind
yes.and the .mtlx mateial can not works above attached by @goldeleaf.
Image Not Found

The prim referenced in your scene is broken. there's nothing there to edit.


microvswind: Member; 7 posts; Joined: Nov. 2017; Offline

Dec. 22, 2021 7:10 a.m.

jsmack
microvswind
yes.and the .mtlx mateial can not works above attached by @goldeleaf.
Image Not Found

The prim referenced in your scene is broken. there's nothing there to edit.

How to fix the prim referenced.
i create a empty scene and reference the .mtlx with this setteing.

Attachments:
123.png (581.6 KB)


jsmack: Member; 7741 posts; Joined: Sept. 2011; Offline

Dec. 22, 2021 12:17 p.m.

microvswind
jsmack
microvswind
yes.and the .mtlx mateial can not works above attached by @goldeleaf.
Image Not Found

The prim referenced in your scene is broken. there's nothing there to edit.
How to fix the prim referenced.
i create a empty scene and reference the .mtlx with this setteing.
Image Not Found

That's correct. The same referenced prim works correctly for me. Which version of Houdini are you using?

Attachments:
mtlx_reference.png (1.1 MB)

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