Karma height map creates shading errors

   574   3   1
User Avatar
Member
697 posts
Joined: Aug. 2013
Offline
Hi All.

Im sure the odd shading errors you get trying to use height maps in the standard surface worked when I used to change the input RGB greyscale height map to vector3. Nothing is working now. The normal go crazy. Is there any other work around to get heightmaps to work?

Best

Mark

Attachments:
shadingErrror.jpg (431.8 KB)

User Avatar
Member
2625 posts
Joined: June 2008
Offline
You do have a dotted connector indicating all might not be right. Those can be confusing, because sometimes it doesn't matter, in this case, the HeightToNormal node expects a float and is not auto-converting your RGB vector3. Try extracting only a single channel from your grayscale RGB image. Supply only the RED channel to the converter's input.
Edited by Enivob - June 25, 2024 08:37:02

Attachments:
Untitled-1.jpg (451.4 KB)

Using Houdini Indie 20.0
Windows 11 64GB Ryzen 16 core.
nVidia 3050RTX 8BG RAM.
User Avatar
Member
697 posts
Joined: Aug. 2013
Offline
Hi.

That also gave me errors. I think I have just fixed it using this setup. Thanks for the help though!

Best. Mark

Attachments:
normal.jpg (76.4 KB)

User Avatar
Member
1 posts
Joined: July 2017
Offline
Maybe this will help somebody. Use the "mtlx bump" node instead of height to normal.
You can add a normal map there too.
That did it for me, Cheers.
Image Not Found

Attachments:
Screenshot 2024-11-25 133200.png (119.8 KB)

  • Quick Links