CS6: why is filters / distortion / polar coordinates greyed out?

[RogerG40767081]

I have created a linear pano successfully comprising 7 images and now I am trying to create a circular pano but cannot use filters / distortion / polar coordinates as it's all greyed out.Why is that? Is there an image size limit? I am running CS6 on an iMac with OS High Sierra 10.13.4.

[c.pfaffenbichler]

What are the image’s Color Mode, bit depth and pixel dimensions?

Edit: In particular is the image above 30.000 px in any dimension?

[RogerG40767081]

Thanks for your reply.

Image colour mode: ProPhoto RGB

Bit depth: 16 bit. Although I have tried it at 8 bit but no change.

Image size 4500 x 4500px. I have reduced the image size to see if that worked but no luck.

Res: 300dpi

I have not converted to smart object if that helps.

Up to creating the square pano needed for making a circular one there was no problem after I reduced the size of each constituent image layer to a more manageable size. I really don't know what I need to do now. Appreciate any help on this.

[RogerG40767081]

I think I have solved it. I saw all the 7 constituent image layers were open so I flattened the image and it worked. I was then able to proceed. Not perfect yet but at least I seem to have solved my initial problem. If anyone has done this successfully and has a technique I would be glad of any further guidance.

[c.pfaffenbichler]

I think I have solved it. I saw all the 7 constituent image layers were open so I flattened the image and it worked.

Hopefully you mean »converted them to a Smart Object«.

[RogerG40767081]

Hopefully you mean »converted them to a Smart Object«.

No I didn't do that. Should I?

I saw this after posting. Good for anyone interested in making a circular pano.

https://www.youtube.com/watch?v=p1wZZXt6y_Y https://www.youtube.com/watch?v=p1wZZXt6y_Y

[c.pfaffenbichler]

Should I?

Of course, applying Filters as Smart Filters offers the benefit of future edibility.

Working non-destructively in Photoshop is in general highly advisable.

[RogerG40767081]

Yes I totally agree but smart filters is an area I don't know much about. So, as I deleted all the seven original layers to expedite, what exactly should I have done please?

[c.pfaffenbichler]

In my opinion (and others may disagree) you may have wanted to convert the whole shebang to one Smart Object and applied the Filter to that.

But maybe I misunderstand the file’s nature, so what is/was the Layer structure exactly?

[RogerG40767081]

.... so what is/was the Layer structure exactly?

7 tiff image layers.