I just purchased Arnold. In Houdini CPU works perfect but GPU says generating scene endlessly.

[Shane_Hanlon]

The scene is literally a single sphere just to test arnold. Houdini 17.5.425 and Arnold 6.0.1.

[Shane_Hanlon]

Also Arnold is not automatically updating when I change a material parameter. How do I fix that?

[2867145495]

arnold's GPU can't be used,

The first step is to upgrade the graphics card driver. Remember to use NVIDIA's own upgrade.

The second step is if the system environment variable specifies Maya's arnold, remember to modify it.

third step

Delete unsuccessful GPU caches in this directory. Many methods have also been tested by group friends. As soon as I had time in these two days, I tested naiad wholeheartedly. arnold didn't study it well.