[SOLVED] Why does the UV editor show the render result instead of UV shells?

[[Bm8] Naoki]

Im following this tutorial and did everything to the book, but I dont get any UV shells, only the render result in the UV editor. Is it supposed to be like that or am I missing something?

https://www.youtube.com/watch?v=f2-FfB9kRmE

Heres what I got:
http://s3.postimg.org/wvg3939ar/Capture.jpg

[Mr Chappy]

At the bottom of this window is a button next to the word "view" on the left hand side.
Click this button and the 6th option from the bottom should be "UV/Image Editor", click on this to get the display you want in this window.

When you press F12 to get a render I find it's choice of which window to use for the render result to be somewhat random, I've never completely figured out how it decides which window to use... Anyone know the answer to this, not really an issue but I would be interested to hear how/why. Thanks :)

[Pte Jack]

If there is or has been a render (F12) done, the uv/image editor, for whatever reason, sometimes thinks there is a picture to be displayed, even when there isn't one to display and will sometimes starts in render mode. The image, even though it doesn't exist is somehow packed into the blend file. But it's just a matter of cancelling the rendered image to get back to the default window by clicking the X beside the box that says "Render Result". Shift and click the X will unlink the actual render from the session...

[Mr Chappy]

Originally posted by Pte Jack:

If there is or has been a render (F12) done, the uv/image editor, for whatever reason, sometimes thinks there is a picture to be displayed, even when there isn't one to display and will sometimes starts in render mode. The image, even though it doesn't exist is somehow packed into the blend file. But it's just a matter of cancelling the rendered image to get back to the default window by clicking the X beside the box that says "Render Result". Shift and click the X will unlink the actual render from the session...

+1, ignore what I said, just noticed you are already in UV view for this window. I'd never noticed it do this before, just assumed it had put the render in that window. Thanks @Pte Jack :)
Do you know how it selects which window to use to render into out of interest?

[Pte Jack]

If you notice that when you do a F12 in the 3d viewer without having the UV/Image editor open in a split screen, the 3d viewer switches off to a UV/Image editor screen and switches back to the 3d Editor when you press escape. So, it is using the available window or the default window to display the render if you have say a curve editor or dope sheet opened in a split or (I haven't noticed or actually tried this purposely) maybe uses the screen that the cursor was hovering over when the F12 was pressed.

If there is a dedicated UV/Image editor open in a split screen it will display in the dedicated image editor screen.

[[Bm8] Naoki]

Originally posted by Mr Chappy:

At the bottom of this window is a button next to the word "view" on the left hand side.
Click this button and the 6th option from the bottom should be "UV/Image Editor", click on this to get the display you want in this window.

That worked, I can see the UV shells now. Thanks for your help everyone :)

http://s17.postimg.org/jfx6jmxsf/Capture.jpg

[Mr Chappy]

Originally posted by Pte Jack:

If you notice that when you do a F12 in the 3d viewer without having the UV/Image editor open in a split screen, the 3d viewer switches off to a UV/Image editor screen and switches back to the 3d Editor when you press escape. So, it is using the available window or the default window to display the render if you have say a curve editor or dope sheet opened in a split or (I haven't noticed or actually tried this purposely) maybe uses the screen that the cursor was hovering over when the F12 was pressed.

If there is a dedicated UV/Image editor open in a split screen it will display in the dedicated image editor screen.

I normally have a 3D view window and a Node Editor window open when I get to rendering, sometimes with a third 3D view window(for moving lights around with the other in preview mode(I switch this off(back to normal) before starting a render)).
It always seems pretty random which one it chooses when I have it set up like this, I've tried clicking on the window I would prefer and leaving the mouse over this window when pressing F12 only for it to pick one of the others anyway???
Not really an issue just never got my head round how it decides which one :)

[[Bm8] Naoki]

I am by no means any expert in Blender, I have barley used it. But Im switching from MayaLT to blender to get rid of the "indie barricades". MayaLT has no scripting or phyton support but Blender has it all. This is another story :) I dont know why Blender renders out a main render in the UV editor which is wierd, yes.

[Pte Jack]

Weird?? No, actually it is not.

The UV editor is not just a UV editor, it is a UV/Image Editor. If Blender see one of these open, it will select an editor to display the render because it is an image editor.

Now if you have multiple UV/image editors open, how it decides which one to use... Is it the last one used, is it python based on which screen has a lower or higher number in the hierarchy, or is it just "oops there's one, I'll use that" based???

That's the mystery... !!!