Hypershade Problems Maya 2015

#1

Hi cg-people :slight_smile:

I recently encountered a strange problem:

Whenever I create a new mia-material three things can happen:

  1. it all works like it should
  2. it doesn’t show the preview-sphere, just an empty material-window.
  3. the preview sphere is shown, but doesn’t update after whatever kind of change in the material. So if I put a bitmap on it, a reflection, a transparancy…nothing. The only thing that may update the preview-sphere is when I use a material-preset. But any changes after doing this aren’t shown either.

There are some error-messages I get. I don’t know if these are of any importance, but I’ll show you anyway. I’ll try to explain them as good as I can:

When I open this particular scene I get this warning:
// Warning: file: C:/Program Files/Autodesk/Maya2015/scripts/others/hyperShadePanel.mel line 6868: The currently active tab is not a scene tab. This icon size change operation is not implemented for this tab.
If I open an emtpy scene I get no message, and after importing the same scene I stil ldn’t get a warning. But if I save it as a new scene and open that one the message is back.

If I add a bitmap to a material and hit the “go to output connection” button to go back to the material itself it just doesn’t do that and gives me this error:
// Error: file: C:/Program Files/Autodesk/Maya2015/scripts/others/showEditor.mel line 2762: No object matches name: swatchShadingGroup.surfaceShader
If I hit the “go to output connection” button again it suddenly does work. Still no update on the preview-sphere though.

The funny thing is that the changes are visible within my viewport, and it also renders just as it should. And when I re-open the scene all the materials made before look fine again in my viewport. Any new materials are subject to the problem as described above.

I hope somebody understands what I’m trying to describe and with any luck anyone offers a solution :slight_smile:

Thanks in advance!

PS:
If any more details (or maybe images to support) are wanted, please let me know

#2

Anyone?..

#3

Moved to the rendering subforum for you, maybe better luck there.

#4

I’m not sure how to say this nicely, but this has always been the case for me with mental ray shaders. Generally, they work fine regardless of the swatch-preview. But they’ve never been consistent, across an array of GPUs and CPUs going back to 2004 now. I don’t experience (or notice) the error cough-ups you’re talking about, however. Not that I’ve noticed. I just stopped paying attention to the shader-ball previews a decade ago; they’re hit and miss, and only mildly helpful when they are hitting.

#5

Thanks, but it’s not that the shader-ball isnt accurate, there is just nothing happening.
I did notice this doesn’t happen in all scenes, only in scenes in which I imported an FBX.
The “solution” I got so far is ExportSelected -> Exit Maya -> Start Maya -> Import

#6

Thanks man! Appreciated :slight_smile: