Node editor node preview

[BorisGoreta]

Me again.

LW+Octane is very sluggish when node editor previews are activated, small images on top of the nodes. If I disable them then it is fast again. Previews are useful so we can know which image is inside the node. This shouldn't slow down anything. If there is something else connected with previews it should be disabled because it slows things down and is not very useful since Octane is fast enough to preview things in the IPR window.

[juanjgon]

But you can disable the preview shader balls in the plugin options panel, and even better, you can change the number of samples of this preview balls to something low (for example 10 or less) and all is going to be faster.

-Juanjo

[FrankPooleFloating]

Hey Juanjo - this just made me think of something: I've noticed that simply having an Octane-enabled scene open in LW (but without IPR open) makes GPUs 10 degrees celsius warmer. I've suspected that there is always something cooking, but now I am curious if these preview images are always cooking too, and not something saved to disc/memory, until a surface change happens... Is this possibly the case?

[BorisGoreta]

I tested this further and it is not Octanes fault, LW just behaves 5 times slower if the node editor is opened on any of the surfaces.